CN107578030B - Method and system for transmitting fingerprint information by using active touch pen - Google Patents
Method and system for transmitting fingerprint information by using active touch penDownload PDFInfo
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- CN107578030B CN107578030BCN201710859958.XACN201710859958ACN107578030BCN 107578030 BCN107578030 BCN 107578030BCN 201710859958 ACN201710859958 ACN 201710859958ACN 107578030 BCN107578030 BCN 107578030B
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Abstract
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a method and system for transmitting fingerprint information using an active stylus.
Background
Fingerprint identification refers to identification by comparing minutiae of different fingerprints. Fingerprint identification technology relates to a plurality of subjects such as image processing, pattern recognition, computer vision, mathematical morphology, wavelet analysis and the like. The fingerprints of each person are different, namely the fingerprints are obviously different among the ten fingers of the same person, so that the fingerprints can be used for identity authentication. Fingerprint identification technology is often applied to anti-theft work. Nowadays, many electronic products such as cell-phones, panel computer all have fingerprint identification device, can realize functions such as fingerprint unblock, fingerprint payment through fingerprint identification device.
However, many electronic devices in the market have no fingerprint identification device, so that operations such as fingerprint unlocking and fingerprint payment cannot be performed, and the anti-theft method of the user is limited, so that the user can only perform anti-theft by inputting a digital password, a graphical password and the like.
Therefore, how to input fingerprint information into an electronic device without a fingerprint recognition device is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for transmitting fingerprint information by using an active stylus, which are used for inputting fingerprint information into an electronic device through a screen of the electronic device, so that fingerprint unlocking or fingerprint payment can be performed when the electronic device has no fingerprint unlocking device or when an original fingerprint unlocking device of the electronic device fails.
To solve the above technical problem, the present invention provides a method for transmitting fingerprint information by using an active stylus, comprising:
after an active touch pen with a fingerprint collector collects fingerprint information through the fingerprint collector, the fingerprint information is sent to a Micro Control Unit (MCU) of the active touch pen;
the micro control unit MCU converts the fingerprint information into pressure information, and transmits the pressure information to a screen of the electronic equipment by time intervals through the output end of the active touch pen so as to transmit the fingerprint information.
Preferably, the converting the fingerprint information into the pressure information by the MCU specifically includes:
dividing the fingerprint information into a plurality of fingerprint information segments;
converting the fingerprint information segment into corresponding pressure information;
wherein one of the fingerprint information segments corresponds to one of the pressure-sensitive information.
Preferably, the fingerprint collector is an optical fingerprint collector.
Preferably, the fingerprint collector is a semiconductor fingerprint collector.
Preferably, the pressure sensing number of the screen is 2048.
Preferably, the pressure information is specifically an electromagnetic signal; correspondingly, the screen is an electromagnetic screen.
Preferably, the pressure information is a capacitance signal; correspondingly, the screen is a capacitive screen.
Preferably, the method further comprises the following steps:
and the electric quantity indicator lamp of the active touch pen is started when the electric quantity of the active touch pen is lower than a preset value.
Preferably, the method further comprises the following steps:
and the micro control unit MCU controls the fingerprint collector to enter a sleep mode when not receiving the fingerprint information within preset time.
To solve the above technical problem, the present invention further provides a system for transmitting fingerprint information by using an active stylus, including:
the active touch control pen is provided with a fingerprint collector and used for collecting fingerprint information through the fingerprint collector and sending the fingerprint information to a Micro Control Unit (MCU) of the active touch control pen, the MCU converts the fingerprint information into pressure-sensitive information, and the pressure-sensitive information is transmitted to a screen of electronic equipment through an output end of the active touch control pen so as to transmit the fingerprint information;
the electronic equipment is used for receiving the pressure information through the screen.
The invention provides a method and a system for transmitting fingerprint information by using an active touch pen, which comprises the following steps: after fingerprint information is collected by the fingerprint collector, the fingerprint information is sent to the micro control unit MCU of the active touch pen by the active touch pen with the fingerprint collector, then the fingerprint information is converted into pressure-sensitive information by the micro control unit MCU, and the pressure-sensitive information is transmitted to the screen of the electronic equipment through the output end of the active touch pen so as to transmit the fingerprint information. Through utilizing the active touch pen that has fingerprint collection function and fingerprint information conversion function, to electronic equipment transmission fingerprint information, under the condition that electronic equipment does not have fingerprint unlocking device or the original fingerprint unlocking device of electronic equipment breaks down, can also carry out fingerprint unblock or fingerprint payment, so just so richened user's theftproof means, optimized user experience.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a first method for transmitting fingerprint information by using an active stylus according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a second method for transmitting fingerprint information by using an active stylus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a method for transmitting fingerprint information by using an active touch pen, which is used for inputting the fingerprint information into electronic equipment through a screen of the electronic equipment, so that fingerprint unlocking or fingerprint payment is carried out under the condition that the electronic equipment does not have a fingerprint unlocking device or the original fingerprint unlocking device of the electronic equipment has a fault, the anti-theft means of a user is enriched, and the user experience is optimized.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a flowchart illustrating a first method for transmitting fingerprint information by using an active stylus according to an embodiment of the present invention. As shown in fig. 1, the method for transmitting fingerprint information by using an active stylus includes:
s10: after the active touch pen with the fingerprint collector collects fingerprint information through the fingerprint collector, the fingerprint information is sent to the MCU of the active touch pen.
S11: and the micro control unit MCU converts the fingerprint information into pressure information.
S12: the micro control unit MCU transmits the pressure information to a screen of the electronic equipment in a time-sharing mode through the output end of the active touch pen so as to transmit the fingerprint information.
Currently, there are two types of active touch pens in the market, one is an electromagnetic touch pen, which is commonly called an active electromagnetic pen, and the other is a capacitive touch pen, which is commonly called an active capacitive pen. An active stylus may actively send a signal to a screen of an electronic device, which signal is used to convey pressure-sensitive information. Therefore, when the active touch pen is close to or clicks the screen, the function of selecting the icon or drawing on the screen can be realized. The output end (usually the pen point) of the active stylus is generally rigid, so the change of the contact area generated when the active stylus contacts the screen is limited. The active touch pen actively sends pressure information to the screen, and different contact areas are simulated through different pressures, so that lines with different thicknesses can be drawn. By utilizing the function of actively transmitting the pressure-sensitive information to the screen, such as the active touch pen, the fingerprint information is received and converted into the pressure-sensitive information, so that the transmission of the fingerprint information can be realized.
It should be noted that, since there may be more than one pressure information obtained by converting the fingerprint information, the active stylus used for transmitting the fingerprint information is required to have a function of outputting the pressure information in different time periods, and the screen of the electronic device receiving the fingerprint information is also required to have a function of receiving the pressure information in different time periods.
In a specific implementation, for step S10, the fingerprint sensor used by the fingerprint acquirer is embedded on the surface of the active stylus, and the fingerprint sensor used by the fingerprint acquirer may be of a push type or a swipe type, and considering that the user needs to enter a fingerprint in a state where the active stylus contacts the screen of the electronic device, a push type acquisition mode is preferably adopted. According to the type of the fingerprint collector, the form of the transmitted fingerprint information is different, and a corresponding transmission mode is selected according to the form of the fingerprint information.
For step S11, the MCU in the active stylus originally transmits pressure information to the screen by measuring pressure, and converts the fingerprint information into pressure information, which can be transmitted to the screen of the electronic device through the output end of the active stylus, so that the electronic device obtains the pressure information, i.e. the fingerprint information.
For step S12, the user is required to approach or touch the active stylus to the screen of the electronic device to complete the transmission of the fingerprint information. After the micro control unit MCU arranges the pressure information into a queue, the pressure information is transmitted to a screen of the electronic equipment by time intervals through the output end, namely, one piece of pressure information is transmitted at preset time intervals.
According to the method for transmitting the fingerprint information by using the active touch pen, provided by the embodiment of the invention, after the active touch pen with the fingerprint collector collects the fingerprint information by the fingerprint collector, the fingerprint information is sent to the micro control unit MCU of the active touch pen, then the micro control unit MCU converts the fingerprint information into pressure-sensitive information, and the pressure-sensitive information is transmitted to the screen of the electronic equipment through the output end of the active touch pen so as to transmit the fingerprint information. Through utilizing the active touch pen that has fingerprint collection function and fingerprint information conversion function, to electronic equipment transmission fingerprint information, under the condition that electronic equipment does not have fingerprint unlocking device or the original fingerprint unlocking device of electronic equipment breaks down, can also carry out fingerprint unblock or fingerprint payment, so just so richened user's theftproof means, optimized user experience. Although fingerprint information can be transmitted to the electronic device in other manners, people prefer to carry the active stylus with them due to its strong handwriting function. Therefore, the fingerprint information is transmitted by the active touch pen and is more easily accepted by the user.
Fig. 2 is a flowchart illustrating a second method for transmitting fingerprint information by using an active stylus according to an embodiment of the present invention. As shown in fig. 2, based on the first method for transmitting fingerprint information by using an active stylus according to the present invention, step S11 specifically includes:
s20: the micro control unit MCU divides the fingerprint information into a plurality of fingerprint information sections.
S21: the micro control unit MCU converts the fingerprint information segments into corresponding pressure information, wherein one fingerprint information segment corresponds to one pressure information.
For the specific implementation of step S10, refer to the above description, and this embodiment is not described again. A fingerprint information may be a fingerprint image, which includes general features (such as a line shape, a pattern area, a core point, a triangle point, and the number of lines) and local features (such as a direction, a curvature, and a position) of a fingerprint node that can be directly observed by human eyes, so that the function of transmitting pressure information to a screen by using an active stylus can be used to transmit the fingerprint information to the screen, which is equivalent to the reproduction of the fingerprint image on the screen.
In a specific implementation, in step S20, the fingerprint information is divided into a plurality of fingerprint information segments, depending on the existing form of the fingerprint information, and if the fingerprint information is in an image form, the fingerprint information is divided into a plurality of image information segments, and if the fingerprint information is fingerprint information obtained by integrating electrical signals (such as capacitance and inductance), the collected electrical signals are directly divided into regions to form information segments.
For step S21, the fingerprint information segments are converted into corresponding pressure-sensitive information, one fingerprint information segment corresponds to one pressure-sensitive information, each pressure-sensitive information corresponds to one password, and thousands of pressure-sensitive information form a set of password groups. Each fingerprint information segment contains information such as the direction, the curvature, the position and the like of the fingerprint, and a set of password group consisting of pressure-sensitive information, namely thousands of fingerprint information segments, can transmit the whole fingerprint information to the electronic equipment.
In the method for transmitting fingerprint information using an active stylus according to the embodiment of the present invention, on the basis of the first method for transmitting fingerprint information using an active stylus according to the embodiment of the present invention, it is limited that converting the fingerprint information into pressure information by the MCU specifically includes dividing the fingerprint information into a plurality of fingerprint information segments, and then converting one fingerprint information segment into a corresponding pressure information. By dividing the fingerprint information into a plurality of fingerprint information sections and converting one fingerprint information section into pressure-sensitive information, the form of the fingerprint information and the form of the pressure-sensitive information are linked, and the original function of transmitting the pressure-sensitive information of the active touch pen is fully utilized.
On the basis of the first method for transmitting fingerprint information by using an active stylus provided by the embodiment of the invention, as a preferred implementation manner, the fingerprint acquirer is an optical fingerprint acquirer.
The optical fingerprint collector mainly utilizes the refraction and reflection principle of light, and light jets to the prism from the bottom to jet out through the prism, and the angle of the light of jet-out and the light shade of reflection back will be different on finger surface fingerprint unevenness's line, and CMOS or CCD's optical device will collect the picture information of different light and shade degrees, just accomplishes the collection of fingerprint. The optical fingerprint collector is the earliest fingerprint collector and the most common fingerprint collector, is relatively reliable and has relatively low price.
According to the method for transmitting the fingerprint information by using the active touch pen, provided by the embodiment of the invention, the optical fingerprint collector is used as the fingerprint collector, so that the collected fingerprint information is more reliable and the cost is lower.
On the basis of the first method for transmitting fingerprint information by using an active stylus provided by the embodiment of the invention, as a preferred implementation manner, the fingerprint acquirer is a semiconductor fingerprint acquirer.
The principle of the semiconductor fingerprint collector is similar whether the semiconductor fingerprint collector is a capacitive type or an inductive type, fingers are attached to a flat plate integrated with thousands of semiconductor devices to form the other surface of a capacitor (inductor), the actual distances between the contact flat plate at convex points and the contact flat plate at concave points are different due to the fact that the planes of the fingers are uneven, the formed capacitance or inductance values are different, the collected different values are collected according to the principle, and the fingerprint collection is finished.
In the method for transmitting fingerprint information by using an active stylus, the semiconductor fingerprint collector is used as the fingerprint collector, and compared with an optical fingerprint collector, the semiconductor fingerprint collector can obtain better image quality than an optical technology on a smaller surface, and is more suitable for being installed on a small carrier such as the active stylus.
On the basis of the first method for transmitting fingerprint information by using an active stylus provided in the embodiment of the present invention, as a preferred implementation, the number of pressure sensing stages of a screen is 2048.
The pressure induction stage number is an important performance index of the capacitive screen or the electromagnetic screen. The pressure of the current mainstream electromagnetic induction plates reaches 1024 and 2048 grades, and most of middle-high-end products reach 2048 grades. The 2048-level screen is used for receiving the pressure-sensitive information sent by the active touch pen, so that the touch-sensitive information is more sensitive, and the fingerprint information obtained by transmission is clearer and more accurate. Of course, the active stylus can convert the fingerprint information into the pressure information of corresponding levels according to the pressure level of the screen.
According to the method for transmitting the fingerprint information by using the active touch pen, provided by the embodiment of the invention, the pressure-sensitive information transmitted by the active touch pen is received by adopting the 2048-level screen, so that the obtained fingerprint information is clearer and more accurate, and the success rate of fingerprint information transmission is improved.
On the basis of the first method for transmitting fingerprint information by using an active stylus provided by the embodiment of the present invention, as a preferred implementation manner, the pressure information is specifically an electromagnetic signal, and correspondingly, the screen is an electromagnetic screen.
The electromagnetic screen can receive an electromagnetic signal sent by the active electromagnetic pen and send the electromagnetic signal to an X/Y axis antenna array on the electromagnetic screen, so that positioning is achieved or pressure induction is simulated. The electromagnetic screen is the handwriting screen with the best handwriting experience at present, and has the highest handwriting transmittance compared with a resistance screen and a capacitance screen; the electromagnetic system is a rear-mounted type, is not easy to damage, has the function of a mouse, also has the function of preventing mistaken touch, and has low system integration cost and high response speed. When the screen of the electronic device is an electromagnetic screen, an active electromagnetic pen is required to input signals. The micro control unit MCU is also required to convert the fingerprint information into pressure information in the form of electromagnetic signals.
According to the method for transmitting the fingerprint information by using the active touch pen, provided by the embodiment of the invention, under the condition that the screen is an electromagnetic screen, the pressure information is an electromagnetic signal. The capacitive screen can prevent the mistake and touch, and equipment reaction rate is higher. The active electromagnetic pen is used for transmitting fingerprint information, and functions of fingerprint unlocking and the like of equipment with an electromagnetic screen can be achieved.
On the basis of the first method for transmitting fingerprint information by using an active stylus provided in the embodiment of the present invention, as a preferred embodiment, the pressure-sensitive information is specifically a capacitance signal, and accordingly, the screen is a capacitive screen.
Capacitive screens are screens of electronic equipment which are widely applied at present, and work by utilizing current induction of human bodies. The capacitive screen is widely applied to electronic equipment such as a mobile phone and a tablet personal computer, when a finger touches a metal layer of the capacitive screen, a coupling capacitor is formed between a user and the surface of the touch screen due to an electric field of a human body, and for high-frequency current, the capacitor is a direct conductor, so that the finger sucks a small current from a contact point. The currents respectively flow out of the electrodes on the four corners of the touch screen, the currents flowing through the four electrodes are in direct proportion to the distances from the fingers to the four corners, and the controller obtains the position of a touch point through accurate calculation of the proportion of the four currents. When the screen of the device is a capacitive screen, an active capacitive pen is needed to input signals. The micro control unit MCU is also required to convert the fingerprint information into pressure-sensitive information in the form of capacitance signals.
According to the method for transmitting the fingerprint information by using the active touch pen provided by the embodiment of the invention, under the condition that the screen is a capacitive screen, the pressure-sensitive information is a capacitive signal. The capacitive screen is more wear-resisting, long service life, and the maintenance cost is low, uses extensively, utilizes active electric capacity pen transmission fingerprint information, can realize functions such as fingerprint unblock, fingerprint payment under the condition that equipment such as cell-phone or panel computer do not have fingerprint identification device or fingerprint identification device breaks down.
On the basis of the first method for transmitting fingerprint information by using an active stylus provided in the embodiment of the present invention, as a preferred embodiment, the method further includes:
the electric quantity indicator light of the active touch pen is turned on when the electric quantity of the active touch pen is lower than a preset value.
It should be noted that the power indicator is suitable for a rechargeable active stylus.
In specific implementation, the electric quantity indicating lamp can be an LED lamp which saves electricity. When the electric quantity of the active touch pen is lower than a preset value, such as ten percent of full electric quantity, the electric quantity indicating lamp can be directly turned on or flickered to remind a user of charging.
According to the method for transmitting the fingerprint information by using the active touch pen, provided by the embodiment of the invention, the user is prompted by the electric quantity indicator lamp that the electric quantity of the active touch pen is too low, the user can be reminded of charging in time, and the connection interruption caused by insufficient electric quantity is prevented.
In addition to the above-described embodiments, preferred embodiments further include:
and when the micro control unit MCU does not receive the fingerprint information within the preset time, the fingerprint collector is controlled to enter a sleep mode.
In specific implementation, three modes, namely a normal mode, a sleep mode and a power-off mode, can be set for the active stylus, when the micro control unit MCU does not receive fingerprint information within a predetermined time, the fingerprint acquirer is first controlled to enter the sleep mode, and other functions of the active stylus can be used. The active stylus may be automatically powered off if the user does not perform any operation within a predetermined time.
According to the method for transmitting the fingerprint information by using the active touch pen, provided by the embodiment of the invention, the micro control unit MCU controls the fingerprint collector to enter the sleep mode when not receiving the fingerprint information within the preset time, and the power consumption of the active touch pen can be saved due to the fact that the fingerprint collector consumes more power.
In addition, the present invention also provides a system for transmitting fingerprint information by using an active stylus, comprising:
the active touch pen with the fingerprint collector is used for collecting fingerprint information through the fingerprint collector and sending the fingerprint information to the Micro Control Unit (MCU) of the active touch pen, the MCU converts the fingerprint information into pressure-sensitive information, and the pressure-sensitive information is transmitted to a screen of the electronic equipment through the output end of the active touch pen so as to transmit the fingerprint information;
and the electronic equipment is used for receiving the pressure information through the screen.
Since the embodiment of the system for transmitting fingerprint information by using an active stylus corresponds to the embodiment of the method, please refer to the description of the embodiment of the method, which is not repeated herein.
The system for transmitting fingerprint information by using the active touch pen comprises the active touch pen with the fingerprint collector and electronic equipment, wherein the active touch pen is used for collecting the fingerprint information through the fingerprint collector, converting the fingerprint information into pressure information through the Micro Control Unit (MCU), and transmitting the pressure information to a screen of the electronic equipment through an output end to transmit the fingerprint information. The electronic equipment is used for receiving the pressure information through the screen. Through utilizing the active touch pen that has fingerprint collection function and fingerprint information conversion function, to electronic equipment transmission fingerprint information, under the condition that electronic equipment does not have fingerprint unlocking device or the original fingerprint unlocking device of electronic equipment breaks down, can also carry out fingerprint unblock or fingerprint payment, so just so richened user's theftproof means, optimized user experience.
The method and system for transmitting fingerprint information using an active stylus according to the present invention are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (9)
1. A method for transmitting fingerprint information by using an active stylus, comprising:
after an active touch pen with a fingerprint collector collects fingerprint information through the fingerprint collector, the fingerprint information is sent to a Micro Control Unit (MCU) of the active touch pen;
the micro control unit MCU is used for dividing the fingerprint information into a plurality of fingerprint information sections, converting the fingerprint information sections into corresponding pressure-sensitive information, and transmitting the pressure-sensitive information to a screen of electronic equipment in a time-phased manner through an output end of the active touch pen so as to transmit the fingerprint information;
wherein one of the fingerprint information segments corresponds to one of the pressure-sensitive information.
2. The method of claim 1, wherein the fingerprint sampler is an optical fingerprint sampler.
3. The method of claim 1, wherein the fingerprint sampler is a semiconductor fingerprint sampler.
4. The method of claim 1, wherein the screen has a pressure-sensitive number of 2048.
5. The method according to claim 1, characterized in that the pressure-sensitive information is in particular an electromagnetic signal; correspondingly, the screen is an electromagnetic screen.
6. The method according to claim 1, characterized in that the pressure-sensitive information is in particular a capacitive signal; correspondingly, the screen is a capacitive screen.
7. The method of claim 1, further comprising:
and the electric quantity indicator lamp of the active touch pen is started when the electric quantity of the active touch pen is lower than a preset value.
8. The method of any one of claims 1-7, further comprising:
and the micro control unit MCU controls the fingerprint collector to enter a sleep mode when not receiving the fingerprint information within preset time.
9. A system for transmitting fingerprint information using an active stylus, comprising:
the active touch pen with the fingerprint collector is used for collecting fingerprint information through the fingerprint collector and sending the fingerprint information to the Micro Control Unit (MCU) of the active touch pen, the Micro Control Unit (MCU) divides the fingerprint information into a plurality of fingerprint information sections, converts the fingerprint information sections into corresponding pressure-sensitive information, and transmits the pressure-sensitive information to a screen of electronic equipment through an output end of the active touch pen so as to transmit the fingerprint information; wherein one of the fingerprint information segments corresponds to one of the pressure-sensitive information;
the electronic equipment is used for receiving the pressure information through the screen.
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| CN201710859958.XACN107578030B (en) | 2017-09-21 | 2017-09-21 | Method and system for transmitting fingerprint information by using active touch pen |
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| CN201710859958.XACN107578030B (en) | 2017-09-21 | 2017-09-21 | Method and system for transmitting fingerprint information by using active touch pen |
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| WO2020107442A1 (en)* | 2018-11-30 | 2020-06-04 | 深圳市汇顶科技股份有限公司 | Fingerprint identification module and terminal device |
| CN113220147B (en)* | 2021-06-08 | 2023-09-05 | 深圳市玖洋洲科技有限公司 | Pop-up stylus based on fingerprint identification and using method |
| CN115494968B (en)* | 2021-06-18 | 2025-09-02 | 戴尔产品有限公司 | System and method for protecting content and improving collaboration using an electronic stylus |
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