Summary of the invention
A kind of touch control earphone system, described touch control earphone system comprises:
(a) ear speaker device: described ear speaker device is integrated with three axle inertial sensors; Described three axle inertial sensors are three axis accelerometer meters and the gyrostatic one of tri-axis angular rate; Described touch control earphone system utilizes user to point at least two features of the exercise data that three axle inertial sensors export when the surface click of ear speaker device casing, paddling, release to judge that user points the touch control operation made on ear speaker device casing surface; Described exercise data is the one of first acceleration information and angular rate data; User is chosen in the difference of sensitivity of the surface click of ear speaker device casing, paddling, releasing operation and the difference of sensitive direction relative to three axles wearing the three axle inertial sensors that orientation causes of user's ear for export the first axle of exercise data and the second axle be the ear speaker device that causes relative to installation position and the ear speaker device shell mechanism factor of ear speaker device shell relative to the direction of welding of circuit board, circuit board according to described three axle inertial sensors respectively;
(b) terminal equipment: described terminal equipment runs spooler; Described spooler receives the touch-control order that described ear speaker device is uploaded, and the interface calling corresponding application program is to realize the response of corresponding function; Described ear speaker device and terminal equipment are coupled by a kind of mode of wireless network and wire communication line.
A kind of touch control earphone system, the position that wherein said three axle inertial sensors are integrated in ear speaker device inside has asymmetry relative to ear speaker device casing, thus the exercise data making user point the corresponding output when the surperficial click towards different directions of ear speaker device casing, paddling, release has more standby distinction each other.
A kind of touch control earphone system, at least two features that described touch control earphone system utilizes user to point the exercise data that the first axle of the three axle inertial sensors when surface clicks of ear speaker device casing, paddling, release and the second axle export to the feature judging user and point the touch control operation made on ear speaker device casing surface are: the peak value that the fluctuation of the first axle output exercise data describes the absolute value of waveform exceedes set action bottom threshold; The peak value that at least one fluctuation occurred continuously in the time interval of the single operation determination time of setting describes the absolute value of waveform exceedes in the peak point of set action bottom threshold, the point choosing its intermediate value maximum is pre-decision-point, makes described touch control earphone system enter pre-decision state.
A kind of touch control earphone system, wherein said fluctuation describe waveform be described exercise data via the Wave data after High frequency filter, the sudden motion in original motion can be characterized better relative to exercise data.
A kind of touch control earphone system, described touch control earphone system utilizes user to point and clicks on ear speaker device casing surface, paddling, during release, at least two features of the exercise data that the first axle of three axle inertial sensors and the second axle export judge that another feature that user points the touch control operation made on ear speaker device casing surface is: when being in described pre-decision state in described touch control earphone system, relatively obtain fluctuation that the first axle and the second axle export exercise data and describe similitude between waveform, this operation judges the interval corresponding operation of similar value that the value being produced as described similitude falls into.
A kind of touch control earphone system, residing touch control earphone system judges that in the process of a touch-control command recognition moment that generation first operate is as marking the moment, after described touch control earphone system successfully judges generation one operation, with the moment of the half of single operation determination time before marking the moment for end time, duration is whether the peak value that the fluctuation retrieving the exercise data that buffer memory first axle and the second axle export in the time interval of the interdictum duplex identification term of validity describes the absolute value of waveform exists the peak point exceeding preposition threshold value, if existed, then this touch-control command recognition is the touch-control order judging that with the mark moment click corresponding to the operation that produces suspends paddling and discharge, if there is no, then be initial time with the moment of the half of single operation determination time after marking the moment, continue monitoring in the duration time interval that is the interdictum duplex identification term of validity and whether can judge to produce new operation, if it is determined that produce new operation, then this touch-control command recognition is the touch-control order that the click corresponding with the operation newly judging to produce suspends paddling and discharge, if do not judge to produce new operation, then this touch-control command recognition is the touch-control order that the direct paddling of click corresponding to the operation that judges with the mark moment to produce discharges, and this touch-control order identified is sent to terminal equipment.
Based on a method for the touch-control command recognition of touch control earphone, described method comprises following steps:
When a peak value that the fluctuation of () monitor user ' finger first axle output exercise data of three axle inertial sensors when surface clicks of ear speaker device casing, paddling, release describes the absolute value of waveform exceedes set action bottom threshold, be less than peak value that at least one fluctuation occurred continuously in the time interval of the single operation determination time of setting describes the absolute value of waveform to exceed the point choosing peak value maximum in the adjacent peak point of set action bottom threshold be pre-decision-point at interval each other, enters pre-decision state; (sensation is still good around mouth, can in other manners the meaning be talked clearly again)
B (), under pre-decision state, the fluctuation of the exercise data that more described pre-decision-point moment first axle and the second axle export describes waveform, obtains its similitude, judge to produce corresponding operation interval with the similar value that the value of current similarity falls into;
C () judges that in the process of single touch-control command recognition moment that generation one operates is as the mark moment, and successfully judging to carry out preposition judgement after generation first operates, be end time with the moment of the half mark single operation determination time before the moment, the fluctuation of the exercise data of retrieving the first axle of buffer memory and the output of the second axle in the time interval of duration for the interdictum duplex identification term of validity describes waveform:
(1) if there is the peak point that peak value that fluctuation describes the absolute value of waveform exceedes preposition threshold value; then this touch-control command recognition is the touch-control order judging that with the mark moment click corresponding to the operation that produces suspends paddling and discharge, and directly performs step (e);
(2) peak value that if there is no fluctuation describes the absolute value of waveform exceedes the point of preposition threshold value, then continue to perform step (d);
(d) with the moment of the half of single operation determination time after marking the moment for initial time, duration be the interdictum duplex identification term of validity time interval in continue to detect and whether can judge to produce new operation:
(1) if it is determined that produce new operation, then this touch-control command recognition is the touch-control order that the click corresponding with the operation newly judging to produce suspends paddling and discharge.
(2) if do not judge to produce new operation, then this touch-control command recognition is the touch-control order that the direct paddling of click corresponding to the operation that judges with the mark moment to produce discharges;
E described touch-control order is sent to the terminal equipment be coupled with described ear speaker device by (), make terminal equipment make the response of corresponding function, completes the identification of described touch-control order.
The recognition methods of a kind of touch control earphone system and touch-control order thereof, wherein similar value is interval can divide in the mode of not decile, make the similar value interval of the operation correspondence of user preference can be larger, thus the radian in the direction of the larger click of correspondence, paddling, release, be convenient to the operation of user.
The invention provides the touch control earphone that a kind of exercise data exported based on three axle inertial sensors realizes touch controllable function, this touch control earphone can detect user's finger and click on earphone casing, paddling, the direction of release, and click action and paddling, delay deliberately whether is there is to identify the touch-control order of user between release movement, user can be convenient to use these touch-control orders and realize such as when terminal equipment is standby: cut song, adjustment sound connects hangs up, open the functions such as application-specific, be inconvenient to carry out button when being convenient for people to trip, use during touch screen operation.Extra, under non-standby state, can also be used for while three axle inertial sensors state touch controllable function in realization detecting user's head movement to provide new man-machine interaction mode.
The invention provides a kind of method that cheapness realizes multifunctional headphone, multiplexing acceleration transducer achieves touch controllable function, and do not increase extra button, capacitance touch module, reduce production cost, decrease the complexity of Headphone structure, thus be more conducive to the popularization of earphone of the present invention and promote the useful life of its corresponding product.
The invention provides a kind of method that acceleration transducer integrated based on earphone identifies the order of user's touch-control, this method can identify the touch-control order that user clicks on earphone surface, paddling operation is corresponding by the data extracting the 3-axis acceleration sensor at least output of diaxon, and without any need for other extra button or touch controlled key.
Other object of the present invention is to provide a kind of touch control earphone system and identifies the method for touch-control order, this process employs user and point click, paddling, during release, sudden action feature and user point click, paddling, the difference of the output exercise data that release direction is different and cause is to judge that user points the touch control operation made on ear speaker device casing, further, by detecting click action and paddling, the time delay whether existed between release movement is deliberately identified as touch-control order that the direct paddling of the click corresponding with touch-control action discharges and clicks the one suspending the touch-control order that paddling discharges.Make user only need when terminal equipment is standby, on ear speaker device casing, do calling of function on various terminal equipments that various touch-control action just can be easy by finger.
By specification below and claims, and combine the accompanying drawing of diagram the preferred embodiments of the present invention, further object of the present invention and feature will be clearly, in the accompanying drawings, use similar label to mark similar element in the various figures.
Embodiment
invention general view
The present invention is described in detail, the preferred embodiments of the present invention shown in the drawings referring now to accompanying drawing is more complete.But the present invention should not be regarded as being limited to the embodiment proposed here, provide these embodiments to make the disclosure will be thoroughly with completely on the contrary, and scope of the present invention is conveyed to those skilled in the art completely.Carry throughout, similar label refers to similar element.
principle analysis
Utilize the asymmetry of people's ear structure asymmetry and Headphone structure, be equipped with the three-axis moving data waveform analyzed three-axis sensor integrated on its wear headphones and export, inventor has been found that an advantageous particularly and useful feature, namely click can be pointed according to user, paddling, the degree relevant to user operation action of the output exercise data of release ear speaker device casing chooses the first axle and the second axle, the difference of the similitude between the difference of the amplitude that the fluctuation of the exercise data exported according to the first axle and the second axle describes and its fluctuation describe judges that user points relative to earphone casing paddling, the angle of release, and judge to be produced as corresponding operation.
Fig. 1 shows the schematic diagram of finger click, paddling, release on earphone casing.In FIG, the user's ear 101 of wear headphones equipment 102 forms an elastic potential energy storage system 100 with ear speaker device 102 casing.Citing is not as illustrating as restriction, and three axle inertial sensors 106 are integrated on front side of casing asymmetrically relative to ear speaker device 102 casing.User's finger is after ear speaker device 102 casing is pressed perpendicular to auricle in-plane click 103 in edge, citing is not conduct restriction as illustrating, its finger can respectively to front paddling 105 and paddling 104 backward, and with finger paddling to during ear speaker device 102 envelope edge release casing, owing to not possessing symmetry before and after ear 101 structure, consider that three axle inertial sensors 106 are installed and also do not possessed symmetry on ear speaker device 102 casing simultaneously, so when two kinds of different paddling directions are to ear speaker device 102 envelope edge release casing, there is larger discrimination in the exercise data that the process of this elastic potential energy storage system 100 fast release front end elastic potential energy 107 and rear end elastic potential energy 108 exports at least diaxon of three axles of three axle inertial sensors.
In order to provide simple illustrative example of the present invention, namely in order to illustrate instead of in order to limit, other is all divided to export exemplarily with the linear acceleration of the output of the angular speed of three axle inertial sensors or three axle inertial sensors in each description of context, but those skilled in the art can be easy to recognize: because the asymmetry of ear structure and ear speaker device 102 integrated tri-axial inertial sensor 106 can cause similar impact at the tri-axis angular rate exercise data of three axle inertial sensors outputs and three axis accelerometer exercise datas, although exporting the polarity of data, amplitude, can be slightly distinct on direction, but this does not affect the fact of both same essence.And the same touch control earphone system identifying touch-control order by output line acceleration information also realize by inventor.
Fig. 2 be ear speaker device integrated tri-axial inertial sensor export exercise data waveform and fluctuation describe between waveform comparison diagram.In fig. 2, show the exercise data of the tri-axis angular rate that three axle inertial sensors 106 export, be respectively: X-axis exercise data waveform 201, Y-axis exercise data waveform 202, Z axis exercise data waveform 203.Low frequency part in the processing mode filtered signal that the coherent signal process field such as High frequency filter can be understood, based on exercise data extract corresponding X-axis exercise data fluctuation describes waveform 204, the fluctuation of Y-axis exercise data describes waveform 205, the fluctuation of Z axis exercise data describes waveform 206.From touch-control command recognition, the angle that operation judges, the mode of the process of High frequency filter scheduling algorithm some can be had sudden (high frequency) you do, such as user's finger knocking ear speaker device 102 casing, the sudden strong action such as release is amplified, and walking when suppressing user's wear headphones, the overwhelming majority such as to run is not so have paroxysmal (low frequency) action, get rid of the interference of common low frequency action, so that next step touch control earphone system is clicked based on user, the feature of the data of the motion that release ear speaker device 102 casing exports is done and is further operated judgement.
Fig. 3 illustrates that High frequency filter process is for reducing the example of head movement interference when user's head movement.Fig. 3 shows High frequency filter algorithm and (walks to low frequency movement, run, shake first-class) inhibitory action disturbed, wherein before High frequency filter process exercise data sets of waveforms 310 be user's wear headphones equipment when rocking head the tri-axis angular rate of three axle inertial sensors export, the fluctuation corresponding with it exported after High frequency filter process describes sets of waveforms 320, can find out significantly, High frequency filter process can well suppress the low frequency movement in original exercise data waveform (to be walked, run, rolling head) part component, with knock, the high frequency motion component that the sudden actions such as release are relevant is separated relatively independently, describing sets of waveforms 320 based on the fluctuation after process so just can well to click, paddling, the feature of the action of release judges, better carry out the judgement of subsequent operation.
When only provide a similar threshold value border by the amplitude interval division of similitude be two interval, only can judge that generation first operates and second operates two kinds of operations.Combine the time-out whether existed deliberately after clicking again to discharge at paddling, can identify further: click operating with first and second operating the first corresponding touch-control order and the second touch-control order, click operating with first of suspending that paddling discharges and second and operate the 3rd corresponding touch-control order and four kinds of touch-control orders of the 4th touch-control order of direct paddling release.Can be a plurality of by the amplitude interval division of similitude when objective parameter (factor such as sensitivity, embedded processing ability of the inertial sensor selected) allows, and the number of the touch-control order that the touch-control system of correspondence can identify be the twice in the amplitude interval of similitude.In order to provide illustrative example concisely of the present invention, namely in order to illustrate instead of in order to limit, the example of follow-up elaboration is all based on the amplitude range of similar value being divided into two similar value intervals or three similar value intervals, but those skilled in the art will readily recognize that: the three axle inertial sensors adopting enough accuracy, with the similar value interval that the interval of similar value equalization or unequal model split can be more parts by higher accuracy of identification, each interval correspondence and different operations, thus can judge to produce more how different operations, more touch-control orders can be identified based on more operation.In order to avoid in question dilatory below, the amplitude range that similar value is only discussed sometimes is divided two intervals or three interval situations, but this should not be construed the situation that the amplitude range getting rid of similar value is divided into more than three intervals.
a kind of touch control earphone system
Citing is not as illustrating as restriction, and Fig. 4 shows the orientation of earphone integrated tri-axial inertial sensor, earphone wearing mode and is determined the both direction of operation.Ear speaker device 102 is integrated with three axle inertial sensors 106, according to the device data of three axle inertial sensors of the employing of the present embodiment, board design file, circuit board relative to the constant bearing of ear speaker device 102 and wearing mode, the linear acceleration detection axis of three axle inertial sensors 106 is: the first axis of acceleration sensing 405, second axis of acceleration sensing 401 and the 3rd axis of acceleration sensing 403.The angular speed detection axis of three axle inertial sensors 106 is: the first angular speed detection axis 406, second angular speed detection axis 402, triangle-rate detection axis 404.Wherein the direction of arrow of each detection axis is the forward that this detection axis exports data, exports on the occasion of data, otherwise then export negative valued data when this detection axis detects the direction of motion or direction of rotation is consistent with this direction of arrow.
For the ease of simple and clear description hereinafter, the special action by user's fingers such as click, paddling, releases merges referred to as touch control operation, hereinafter sometimes in order to touch control operation is split as again click when stressing to describe click, paddling, difference between release or the detailed description of concrete action will be made, paddling, release is described, and hereinafter sometimes easyly click, paddling, release can be collectively referred to as touch-control action to carry out easy description again in order to what compose a piece of writing.
In order to provide simple illustrated examples of the present invention, namely in order to illustrate instead of in order to limit, follow-up describe a lot of use-case and embodiment be all based on the Headphone structure shown in Fig. 4 and wearing mode, but those skilled in the art can be easy to recognize: based on the Headphone structure mode (three axle inertial sensors relative to the direction of welding of circuit board, circuit board relative to ear speaker device casing mounting means) of other form and the wearing mode of earphone, adopt principle of the present invention and method also can realize the function of touch control earphone thereon.
Citing conduct illustrates and not as restriction, Fig. 5 shows and describes comparison of wave shape figure based on Fig. 4 Headphone structure and the front lower of wearing mode to 411 and the rear lower fluctuation to 412 operation output exercise datas.The touch control operation of user on ear speaker device 102 casing surface can further be disassembled as click action, paddling action, release movement three action step, the design feature of the elastic potential energy storage system formed from ear speaker device 102 casing and ear 101 analyze and inventor known with regard to the experimental data actual implementation procedure: wherein release movement is sudden the strongest, and click action is taken second place.The present invention judges to produce the output that operation species depends on the exercise data that release movement is corresponding when user discharges ear speaker device 102 casing, thus for corresponding with release movement front lower after release waveform 510 and release movement under contrast to release waveform 520 and make analysis.Significantly, Headphone structure in Fig. 4 embodiment, earphone wearing mode and user operation mode (are clicked, paddling, release) to analyze and can find: user's finger is clicked on ear speaker device 102 casing surface, paddling, release is except the output that triangle-rate detection axis 404 does not possess obvious physical significance, (because of the angle from ergonomics, should not adopt such touch control operation that ear speaker device 102 casing can be caused to there is relative rotation with the auricle plane that ear 101 is formed, be not easy to the use of user like this, earphone is easily caused to wear insecure and reduce the level of comfort that user uses) in other the second angular speed detection axis 402, all there is the output possessing remarkable physical significance in the first angular speed detection axis 406, for judge produce operation the first axle and the second axle all can not choose triangle-rate detection axis 404.
Citing is not restricted as explanation, chooses the second angular speed detection axis 402 and being for judging the first axle that generation operates, choosing the first angular speed detection axis 406 as judging the second axle that generation operates, choose mode based on the first axle and this of the second axle.Fig. 5 respectively illustrates and front lowerly lower export the fluctuation of exercise data and describe waveform to rear to clicking paddling release.
Click to 411 along front lower at user's finger, paddling, during release ear speaker device 102 casing, from Headphone structure, wearing mode and user point click, paddling, the direction of release is known, larger sudden bounce-back is there is when user points release earphone casing, because its rebound motion exists larger component motion at the first axle (the selected second angular speed detection axis 402 of the first axle correspondence), and it is contrary with this shaft detection direction, so the fluctuation that the first axle of correspondence exists the larger negative polarity of amplitude describes output, namely the first axle is front lower describes output 512 to touch-control action fluctuation.The front lower peak value describing the absolute value of output 512 to touch-control action fluctuation of described first axle has exceeded the action bottom threshold of setting, makes touch control earphone system enter pre-decision state.Same, because rebound motion exists larger component motion at the second axle (the selected first angular speed detection axis 406 of the second axle correspondence), and it is identical with this shaft detection direction, so the second axle of correspondence exists the larger positive polarity fluctuation of amplitude describe output, namely the second axle is front lower describes output 511 to touch-control action fluctuation.When the Headphone structure shown in Fig. 4 and wearing mode, iff the interval being distinguished the amplitude of similar value by a similar threshold value, 0 degree can be chosen and be per secondly used as similar threshold value, because with regard to the Headphone structure shown in Fig. 4 and wearing mode analysis, the value that user's finger and the front lower fluctuation namely clicking the exercise data that the second axle exports when paddling discharges vertically downward to 411 and the rear lower angular bisector to 412 describe waveform is 0, similarity calculation method is adopted according to inventor, the fluctuation similitude described between waveform of the exercise data of the first axle and the second axle be 0 degree per second.And only distinguish front lower to 411 and rear lower in the direction touch control action situation of 412, inventor adopt 0 degree per second be that two intervals judge that two kinds of operations also achieve good effect as similar threshold value by the interval division of the amplitude of similitude.Describing output 511 and the second axle because the first axle is front lower to touch-control action fluctuation, front lower to describe the amplitude of output 512 to touch-control action fluctuation all very large, and polarity is contrary, so the waveform 513 of the similitude calculated via Similarity measures method method amplitude near decision-point (the first axle is front lower describe the peak value of the absolute value of output 511 to touch-control action fluctuation when) is larger, and polarity is negative, both explanations are very dissimilar.Similitude under pre-decision state between the first axle and the second axle is less than similar threshold value, then system judges that generation second operates.
Similarly, user finger along rear lower to 412 clicks, paddling, release ear speaker device 102 casing time, click, paddling, release direction is pointed from Headphone structure, wearing mode and user, larger sudden bounce-back is there is when user points release ear speaker device 102 casing, because its rebound motion exists larger component motion at the first axle, and it is contrary with this shaft detection direction, so the fluctuation that the first axle of correspondence exists the larger negative polarity of amplitude describes output, under namely after the first axle, to touch-control action fluctuation, output 522 is described.The peak value describing out the absolute value of 522 to touch-control action fluctuation under after described first axle has exceeded the western line of action threshold value of setting, makes touch control earphone system enter pre-decision state.Same, because rebound motion exists larger component motion at the second axle, and with the detection side of this axle to contrary, describe export so the second axle of correspondence exists the larger negative polarity fluctuation of amplitude, under namely after the second axle, describe output 521 to touch-control action fluctuation.Waveform 523 amplitude near decision-point (when describing the peak value of the absolute value of output 521 to touch-control action fluctuation under after the first axle) calculating similitude via similarity calculation method is comparatively large, and polarity is just, both explanations are very similar.Similitude under pre-decision state between the first axle and the second axle is not less than similar threshold value, then system judges that generation first operates.
Above-mentioned example only carry out two operation judgement process in, first axle and choosing of the second axle have interchangeability, namely after having changed the first axle and exercise data output shaft corresponding to the second axle, the front lower touch control operation to 411 clicks, paddling, release of user still can be judged as the second operation, also still the first operation can be judged as to the touch control operation of 412 clicks, paddling, release under after user, cause just quote Rule of judgment occur in sequence change, do not have the impact causing any essence.
Did similar analysis above, and namely only had click action and release movement can cause three axle inertial sensors in the various operations of user's finger on ear speaker device 102 shell and produce larger fluctuation description output.(paddling action can think being connected of the front and back of hammer action and release movement, because after knocking, paddling discharges again is a very naturally process, if the finger make a beeline that lifts after knocking deliberately is pinned the operation that earphone edge discharges again and is obviously seemed simple not, do not meet the design principle of ergonomics) due to ear speaker device 102 structure, wearing mode and user generally can not deliberately put forth one's strength the reason (excessively put forth one's strength not only can cause the use of user discomfort even may cause coming off of wear headphones) of knocking ear speaker device casing, so the fluctuation that release movement is corresponding comparatively speaking describes to export often be better than hammer action.And there is not any difficulty in the detection for both for the angle of technology.The operation of concrete analysis user is known, operation may there is such situation: 1. user points and clicks directly paddling release after ear speaker device 102 casing.2. user slightly does after pointing and clicking ear speaker device 102 casing to suspend paddling release again.Describe export due to hammer action and fluctuation corresponding to release movement independently can be detected, the relative instant that both occur can be learnt, and then the time interval calculated between the two, again according to a rational criterion just can determine same direction (front lower to 411 or rear under to 412) the click action of touch control operation and release movement between whether there is time delay deliberately, according to whether same direction can be clicked by the time delay existed deliberately, paddling, release is identified as the touch-control order of the direct paddling release of click and clicks the touch-control order two kinds suspending paddling and discharge, further understanding of the implication of the touch-control action of user, enrich the touch-control order that earphone can realize.Inventor be simple operation the touch-control action naming of directly paddling, release after clicking, and suspending paddling after clicking, the touch-control action command of release is composition operation again, and describes according to both fluctuations the obvious difference that waveform exists and explain.
The fluctuation that Fig. 6 shows simple operation and composition operation describes the correspondence of wave form output than figure.Wherein merely operation fluctuation describes output waveform 610, composition operation fluctuation describes wave form output 620.
User's finger does in the process of the single touch-control command recognition of simple operation (clicking the release of direct paddling) on ear speaker device 102 casing surface, corresponding with finger click action is operate merely click action fluctuation to describe corresponding output point 611, corresponding with finger release movement is then operate merely release movement fluctuation to describe corresponding output point 612, fluctuation description due to the first axle exports the peak value describing the absolute value of corresponding output point 612 in simple operation release movement fluctuation and has exceeded action bottom threshold, so judge first operation producing this touch-control command recognition.Due to can independent detection arrive click action, release movement relative instant, calculate and operate merely click-release time difference Ta613.Judge that moment that generation first operates is as the mark moment with this touch-control order, whether the peak value describing the absolute value of waveform with the fluctuation that the moment of the half of single operation determination time length before marking the moment is end time, retrieve the exercise data that the first axle of buffer memory and the second axle export in the time interval of duration for the interdictum duplex identification term of validity exists the peak point exceeding preposition threshold value.The simple operation described in output waveform 610 of simple operation fluctuation clicks-and release time difference Ta613 is less than the half of single operation determination time length, so simple operation is clicked, fluctuation describes that the half of single operation determination time before corresponding output point 611 does not drop into mark the moment is end time, in the time interval of duration for the effective recognition phase of interdictum duplex.So the peak value that cannot retrieve absolute value in this interval exceedes the peak point of preposition threshold value, therefore can not be the touch-control order of the click time-out paddling release that composition operation is corresponding by this touch-control command recognition.In addition because follow-up output is also uncertain, so can not confirm that this touch-control order judges whether generation first operation is because the dynamics click that user is excessive causes, and the judgement of the present invention's operation only depends on fluctuation corresponding to release movement and describes wave form output, so also cannot be the touch-control order of the direct paddling release of click corresponding to simple operation by this touch-control command recognition when not completing follow-up detection.So the final confirmation of touch-control order in this case also depend on to mark the moment after moment of half of single operation determination time be starting point, continue to detect whether produce new operation in the duration time interval that is the interdictum duplex identification term of validity.
User's finger does in the process of the single touch-control command recognition of composition operation (click and suspend paddling release) on ear speaker device 102 casing surface, corresponding with finger click action is that composition operation click action fluctuation describes corresponding output point 621, corresponding with finger release movement is that composition operation release movement fluctuation describes corresponding output point 622, the peak value describing the absolute value of corresponding output point 622 in composition operation release movement fluctuation due to the fluctuation description output of the first axle has exceeded action bottom threshold, so judge first operation producing this touch-control command recognition.Due to can moment corresponding to the independent detection click action, the release movement that arrive, calculate composition operation and click-discharge time difference Tb623.Judge that moment that generation first operates is as the mark moment with this touch-control order, whether the peak value describing the absolute value of waveform with the fluctuation that the moment of the half of single operation determination time length before marking the moment is end time, retrieve the exercise data that the first axle of buffer memory and the second axle export in the time interval of duration for the interdictum duplex identification term of validity exists the peak point exceeding preposition threshold value.The composition operation fluctuation composition operation described in output waveform 620 is clicked-is discharged time difference Tb623 and is not less than the general of single operation determination time length, make composition operation discharge fluctuation describe the moment of single operation determination time half before corresponding output point 622 is positioned to mark the moment be end time, the duration time interval that is the effective recognition phase of interdictum duplex.So the peak value that can retrieve absolute value exceedes the point (namely composition operation click action fluctuation describes corresponding output point 621) of preposition threshold value; therefore this operation is judged as composition operation, and this touch-control order is identified as the touch-control order that click corresponding to composition operation suspends paddling release.
Analyze known according to the elastic potential storage system that ear speaker device 102 casing and ear 101 are formed, the fluctuation that click action causes in a general case describes and exports is be less than fluctuation that release movement causes to describe and export.So be generally all less than the minimum movements bottom threshold for detecting release movement mainly for detection of the value of the preposition threshold value of click action.But should consider this situation, i.e. user's finger paddling release again after the excessive dynamics of use clicks ear speaker device 102 equipment, and correspondingly, excessive dynamics is clicked the fluctuation caused and is described output and may be judged as effective operation.
When simple operation, because the output point that excessive dynamics hammer action is corresponding is positioned at the time interval that follow-up release movement output point is the half of the single operation determination time of initial time, the peak point that decision algorithm can select the amplitude maximum of absolute value in single operation determination time interval as decision-point to enter pre-decision state, so the fluctuation that can neglect the click action that exceedes minimum movements bottom threshold corresponding describes output point, with the fluctuation of the corresponding output point of release movement, the operation exporting and judge this is described.Even if (test fluctuation description output corresponding to very strong click action through inventor to be also difficult to exceed fluctuation description output corresponding to release movement, even if the overweight click action of a touch control operation can produce exceed release movement, so this type of touch control operation also can cause user's sense of hearing and the discomfort worn not like for user because of overweight click)
When composition operation, need with the moment of first operation of great dynamics click action generation for the mark moment, carry out follow-up monitoring, and according to moment of half of single operation determination time after the mark moment be initial time, duration be the effective recognition phase of interdictum duplex time interval in whether judge that producing new operation determines to judge that the operation produced is caused by the release movement of the touch control operation within the scope of normal dynamics in the mark moment further, or the click action of the touch control operation clicked by the dynamics of mistake causes.
The fluctuation that Fig. 7 showed the composition operation that dynamics is clicked describes the schematic diagram exported.User points and clicks ear speaker device 102 casing by obviously excessive dynamics, its click action crossing dynamics causes the fluctuation of with it corresponding mistakes dynamics click action correspondence output point 701 to describe output valve to exceed minimum movements bottom threshold, make described touch control earphone system enter pre-decision state.Touch control earphone system with the moment (namely crossing the corresponding output point 701 of dynamics click action) judging this touch-control command recognition and judge generation first and operate for marking the moment, using the moment of the half of single operation determination time before marking the moment as end time, duration is that the fluctuation of the first axle of retrieval buffer memory in the effective recognition phase of interdictum duplex and the exercise data of the second axle output describes waveform, obviously peak value cannot be found to exceed the peak point of preposition threshold value (because before user's finger clicks on ear speaker device 102 casing, generally earphone there is not any effective sudden input), touch control earphone system only cannot be retouched output according to the fluctuation of the corresponding output point 701 of the dynamics of mistake click action and be judged that this is operating as simple operation or composition operation, need further monitoring with the moment of the half of single operation determination time after marking the moment for initial time, duration be the effective recognition phase of interdictum duplex time interval in whether can judge to produce new operation.Shown in Fig. 7 is knock the corresponding output point 702 of release movement in the dynamics of mistake to judge to produce new operation.Although this just illustrates and judges to produce new operation at the corresponding output point 701 of the dynamics of mistake click action, it is only the misjudged result of the excessive click action of dynamics.Therefore this touch-control order be identified as corresponding clicks, paddling, release direction click suspend the touch-control order that paddling discharges.If after the mark moment moment of half of single operation determination time be initial time, duration be the effective recognition phase of interdictum duplex time interval in do not judge to produce new operation, this touch-control command recognition is the touch-control order that the click direct paddling corresponding with mark moment decision discharges.
Citing is not conduct restriction as illustrating, if the interval only adopting a similar threshold value to divide similitude amplitude is two parts, when namely can only judge that generation first operates and second operates when operating decision-point (fluctuation that the first axle exports exercise data described to export and exceed the peak point of minimum movements threshold value within single operation determination time): if the touch-control action of user is simple operation, then this touch-control order is identified as operating with first and second operates the first corresponding touch-control order and the one of the second touch-control order; If the touch control operation of user is composition operation, then this touch-control order is identified as operating with first and second operates the 3rd corresponding touch-control order and the one of the 4th touch-control order.
Realize with regard to the real data in touch control earphone process with regard to inventor, general minimum movements bottom threshold choose 20 degree per second, preposition threshold value be generally 5 degree per second.When only adopting a similarity threshold to divide the amplitude of similitude interval, according to the situation of the Headphone structure shown in Fig. 4 and wearing mode, the value of similarity threshold choose 0 degree per second comparatively suitable.Due to the difference of user's use habit, the value of adjustment minimum movements bottom threshold that can be artificial and preposition threshold value, fluctuation description output corresponding to release movement is often less than, so the preposition threshold value arranged should be less than minimum movements bottom threshold (can arrange software to limit by correspondence on terminal equipment) in principle because the corresponding fluctuation of click action describes to export.In addition, a motion artifacts monitor can be increased in a software form in software composition, the movement environment of the residing complexity of entirety when monitor user ' carries earphone at any time, when continuing to detect that user is in the higher environment of the background motion noises such as bicycle, bus, subway, the raising minimum movements bottom threshold that ear speaker device can be suitable improves the antijamming capability of touch control earphone system.
The operating experience in earphone process is realized according to inventor, single operation judges that the length of duration is generally about 200ms, the length of the effective recognition phase of interdictum duplex is generally about 500ms, but should open setting to user, user can be arranged according to the use habit of oneself and preference.Just as the left mouse button double-click judgement of most of operating system, user is all allowed to adjust the double-click interval time of maximum permission, to be adapted to the needs of different user.
Further, if the integrated three axle inertial sensors of ear speaker device enough accurately can be divided by the amplitude area of more similar threshold value to similitude, the interval corresponding different operation of each amplitude, thus realize the judgement of more multioperation.Illustrate that three axle inertial sensors cause ear speaker device 102 to determine relative to the wearing mode of user's ear 101 decomposition that direction and the first axle chosen and the uneven click of the second axle, paddling, releasing operation will inevitably exist action on two detection axis directions relative to the direction of welding of circuit board, circuit board relative to ear speaker device 102 constant bearing and Headphone structure factor based on Fig. 4.Different with the decomposition amount on the second axle at the first axle according to same touch-control action, thus the click of this touch-control action can be calculated, paddling, the direction discharged is relative to the angle of diaxon, although wherein the obtaining corresponding fluctuation through High frequency filter and describe Wave data of the exercise data that exports of the present invention first axle and the second axle, but significantly, no matter the decomposition that first axle and the second axle move (is to walking for the whole frequency content of exercise data, run, shake the ordinary movement of first-class action still to knocking, the sudden motions such as release bounce-back) be all equivalent.The fluctuation that the present invention is based on the first axle and the second axle output exercise data describes waveform to calculate the similitude between diaxon, citing is not conduct restriction as illustrating, a specific embodiment of the present invention adopt the first axle and the second axle export the fluctuation of exercise data describe waveform be multiplied again divided by both absolute value and, at the finger of user with under suitable intensity (user adopts this manipulation strength can obtain best experience to operate touch control earphone) operation, the value of similitude substantially point with user uniquely click, paddling, release directional correlation.The value that the fluctuation exporting exercise data in conjunction with a wherein axle describes polarity and the similitude between the first axle and the second axle exported just indirect calculation can go out the direction that user to point on ear speaker device 102 casing click roughly, paddling, release.The precision of three axle inertial sensors integrated on ear speaker device 102 allows and its integrated flush bonding processor performance allows, touch control earphone system can being divided into and three, four and even more points is hit, amplitude is interval one to one for paddling, release direction the amplitude of similar value, and the amplitude interval fallen into according to the value of similitude between the first axle and the second axle when described ear speaker device enters pre-decision state judges to produce different types of operation.The business that some methods of carrying out Similarity measures in addition have the fluctuation of the exercise data exported by the first axle and the second axle to describe goes back the direction of original subscriber's finger click, paddling, release on ear speaker device casing by arctangent computation, also can by the division interval of similitude amplitude being carried out to more parts when three axle inertial sensor precision allow and flush bonding processor computing capability allows, for judging to determine a greater variety of operation in the process that generation operates.
Citing is not as illustrating as restriction, and the scope that Fig. 8 shows similarity is divided into the example that decision is carried out in three intervals.Three touch-control direction of action have been shown in Fig. 8, that is: front lower to 411, just under to 413, rear lower to 412, and fluctuation corresponding with it describes and exports: front lower to fluctuation describe output group 810, just under describe output group 820 to fluctuation, describe output group 830 to fluctuation down afterwards.The amplitude range of similarity is divided into three interval corresponding first operation, the second operation and the 3rd operations respectively by other first similar threshold value 801, second similar threshold value 802.The direction of the touch-control action of user's finger from front lower to 411 via just to 413 backward under in 412 processes switched, due to the touch-control action on three directions released movement all the time on the first axle (the first axle correspondence what choose be the second angular speed detection axis 402) there is reciprocal component motion, so correspondence front lower to the first axle bounce-back fluctuation describe output 811, just under describe output 821 to the first axle bounce-back fluctuation, describe output 831 to the first axle bounce-back fluctuation and all deposit the larger negative polarity of amplitude and export down afterwards.Similarly, the touch-control direction of user's finger from front lower to 411 via under just to 413 to rear lower in the handoff procedure of 412, because the action that rebounds on the second shaft detection direction is initial consistent with the second shaft detection direction, along with user's touch control operation direction by front lower to 411 towards under just in the processes of 413 conversions, although the direction of rebound motion is still consistent with the second shaft detection direction, the absolute value of the bounce-back component on the second shaft detection direction is more and more less.Until the touch-control direction of user cross just to 413 by under just to 413 backward under to 412 switch process time, the component motion of rebound motion on the second direction of principal axis is contrary with the second shaft detection direction, on the second axle the absolute value of component also along with the direction of user's finger touch operation constantly depart from just to 413 backward under in 412 processes switched, constantly become large.In the process of whole switching, the output of the first axle and the second axle by amplitude very large one positive one be negatively gradually varied to the very large negative value of amplitude, the similitude of its correspondence there occurs by front lower export 813 to bounce-back similitude extremely dissimilarly under just, export 823 dissmilarities again to the rear lower extremely similar change to the similitude output 833 that rebounds to bounce-back similitude.The present embodiment have chosen two appropriate similar threshold value borders: the amplitude interval division of similitude is three parts by the first similar threshold value 801, second similar threshold value 802, (just bear) from down to up and be respectively: the first similar value is interval, the second similar value is interval and third phase is seemingly worth interval, the operation difference of its correspondence: the first operation, the second operation and the 3rd operation.User's finger respectively along front lower to 411, just under to 413, the rear lower similar value to its correspondence during 412 touch control operation: front lowerly export 813 to bounce-back similitude, just under export 823 and export 833 to bounce-back similitude and fall into that the first similar value is interval, the second similar value is interval and third phase is seemingly worth interval respectively down afterwards to bounce-back similitude, can judge that generation first operates, the second operation and the 3rd operation respectively.In conjunction with the user detected whether between clicking operation and paddling releasing operation deliberately pause delay can be identified as accordingly and click direct paddling release type: the first touch-control order, the second touch-control order and the 3rd touch-control order and clicking suspends paddling release type: the 4th touch-control order, the 5th touch-control order and the 6th touch-control order.
Citing is not affected as illustrating is restriction, based on of the present invention can distinguish front lower to 411, just under to 413, the rear lower touch control operation to the direction of 412 is in a played songs use-case of the first operation, the second operation, the 3rd operation, the wherein front lower size being used for ladder adjustment song volume to 411 and the first touch-control order corresponding to the touch control operation of the rear lower click to 412 direct paddling release and the 3rd touch-control order.Front lower to 411 and rear lower to click suspend the 4th touch-control order corresponding to touch control operation of paddling release and the 6th touch-control order cuts song for the front and back controlled based on song catalog.In addition, just under to the 5th touch-control order corresponding to the click direct paddling release of 413 for controlling time-out or the continuation of current played songs.The 6th touch-control order corresponding to paddling release is suspended for switching the circulation pattern of playback of songs to the click of 413 just.Similarly, if further can distinguish the interval of the amplitude of similar value, touch control earphone system can be judged, and more operation also just can realize the function of more horn of plenty.
a kind of recognition methods of the touch-control order based on touch control earphone
Fig. 9 is the flow chart of method of the present invention.One starts at beginning detection module 901 based on touch control earphone system identification touch-control command method 900.As shown in block 902, whether method 900 continues to monitor peak value that the fluctuation of exercise data that the first axle exports describes the absolute value of waveform and is less than in the time interval of the single operation determination time of setting at interval each other and detects continuously and occur that peak value that at least one fluctuation describes the absolute value of waveform exceedes the action bottom threshold of setting, if otherwise continue to detect; If (existence), then touch control earphone system enters pre-decision state and execution block 903.Under pre-decision state, as block 903 illustrates, the fluctuation calculating the exercise data of the first axle and the second axle describes the similitude between waveform, judges to produce the operation corresponding with this interval according to the interval that the value of similitude falls into.(it is two parts iff the interval division of an existence enthusiastic similar value in similar threshold value border, so this two interval is respectively and operates with first and second to operate interval and the second similar value interval of the first corresponding similar value) block 904 illustrates in the process of single touch-control command recognition, the moment of generation is operated as the mark moment with first after judging generation first operation, with the moment of the half of single operation determination time before marking the moment for end time, duration be the effective recognition phase of interdictum duplex time interval in retrieval the first axle of buffer memory and the fluctuation of the exercise data of the second axle describe waveform and whether there is the peak value that absolute value exceedes preposition threshold value: if (existence), then as indicated by block 905, this touch-control command recognition is judge to produce with the mark moment to operate corresponding click and suspend the touch-control order that paddling discharges, (do not exist) if not, then continue as shown in block 906 monitoring with the moment of the half of single operation determination time after mark the moment be initial time, whether duration can judge to produce new operation for interdictum duplex effectively identifies in its time interval: if (can produce), then this touch-control command recognition as shown in block 907 is that the click corresponding with new decision suspends paddling and discharge touch-control order, (can not produce) if not, then as shown in block 908, this touch-control command recognition is that the direct paddling of click corresponding to the operation that judges with the mark moment to produce discharges touch-control order.
Citing is not conduct restriction as illustrating, in one embodiment of the invention, only adopt a similar threshold value that the scope of the amplitude of similitude is divided into two intervals, be respectively and operate with first, the first similar value interval that second operation is corresponding, second similar value is interval, touch control earphone system only can be judged, and generation first operates and the second operation two kinds of operations, join and detect that user points at click action and paddling, time delay deliberately whether is there is between release movement, can identify that touch-control order has four kinds: discharge the first corresponding touch-control order with the direct paddling of the click that first operates, the second corresponding touch-control order is discharged with the direct paddling of the click that second operates, suspend paddling with the click that first operates and discharge the 3rd corresponding touch-control order, and suspend paddling with the click that second operates and discharge the 4th corresponding touch-control order.
Touch-control order based on touch control earphone of the present invention can also realize some more complicated application and functions, citing is not conduct restriction as illustrating, based on a similar threshold value, the amplitude range of similar value is divided into two intervals, that is: the first corresponding similar value is operated with first interval, the embodiment operating the second corresponding similar value interval with second, whether there is passable delay between the click action that cooperation detects and paddling release movement can identify: click the first touch-control order that direct paddling discharges, second touch-control order, click the 3rd touch-control order suspending paddling release, 4th touch-control order.Using example to be based on one of the present embodiment: when running video playback project at terminal equipment, user is controlled volume step increase and decrease by the first touch-control order of single and the second touch-control order, is used for F.F. and the rewind of the progress of video playback by the 3rd touch-control order of single and the 4th touch-control order.Just as left mouse button exists rapid double tap, be used for switching last video items, being used for switching a rear video items by continuous twice second touch-control orders fast by continuous twice first touch-control orders fast.
Just for illustrative purposes, provide concrete application, understanding emphatically the present invention to help reader will prove useful multiple applicable cases.Should also be appreciated that: although the drawings in detail provided and concrete example describe multiple preferred embodiment of the present invention and use example, but they just for illustrative purposes, system and method of the present invention is not limited to disclosed fine detail and situation, and wherein can carry out various change and do not deviate from appending claims definition spirit of the present invention.