技术领域technical field
本申请涉及电子技术领域，尤其涉及一种指纹检测器及电子设备。The present application relates to the field of electronic technology, in particular to a fingerprint detector and electronic equipment.
背景技术Background technique
随着电子技术发展，各种便携式电子设备也越来越多，比如手机、平板电脑等便携式电子设备。With the development of electronic technology, there are more and more portable electronic devices, such as mobile phones, tablet computers and other portable electronic devices.
当前的电子设备中都会这是一个指纹检测器，该指纹检测器中设置了一个指纹识别模块，该指纹识别模块可以检测该电子设备的使用者的指纹信息，从而实现指纹解锁等目的，这样可以使得电子设备安全性更高，但是当期的指纹检测器的功能较为单一，进而使得指纹检测器的使用率较低。In the current electronic equipment, this is a fingerprint detector. A fingerprint identification module is set in the fingerprint detector. The fingerprint identification module can detect the fingerprint information of the user of the electronic equipment, so as to realize the purpose of fingerprint unlocking, etc. This makes the electronic equipment more secure, but the current fingerprint detector has a single function, which makes the usage rate of the fingerprint detector lower.
发明内容Contents of the invention
本发明实施例提供了一种指纹检测器及电子设备，用以解决现有技术中当期的指纹检测器的功能较为单一，进而使得指纹检测器的使用率较低的问题。Embodiments of the present invention provide a fingerprint detector and electronic equipment, which are used to solve the problem in the prior art that the functions of the current fingerprint detector are relatively single, thereby making the usage rate of the fingerprint detector relatively low.
其具体的技术方案如下：Its specific technical scheme is as follows:
一种指纹检测器，包括：A fingerprint detector comprising:
指纹识别模块，用于识别使用者的指纹；A fingerprint identification module, used to identify the user's fingerprint;
感测装置，至少包含两个导体对，所述至少两个导体对中的每个导体对分别与提供驱动信号的驱动电路连接，所述导体对设置在所述指纹识别模块的边缘；The sensing device includes at least two conductor pairs, each of the at least two conductor pairs is respectively connected to a drive circuit that provides a drive signal, and the conductor pairs are arranged on the edge of the fingerprint identification module;
检测电路，分别与每个导体对连接，用于检测所述导体对上的电容值。The detection circuit is respectively connected with each conductor pair, and is used for detecting the capacitance value on the conductor pair.
可选的，所述导体对包含两个导体，所述两个导体之间相互平行，并且所述两个导体之间具有第一间距，所述驱动电路连接到所述导体对的一个导体上，所述检测电路连接到所述导体对的另一个导体上。Optionally, the conductor pair includes two conductors, the two conductors are parallel to each other, and there is a first distance between the two conductors, and the driving circuit is connected to one conductor of the conductor pair , the detection circuit is connected to the other conductor of the pair of conductors.
可选的，所述检测装置包含四个导体对，所述四个导体对围成一个矩形。Optionally, the detection device includes four conductor pairs, and the four conductor pairs form a rectangle.
可选的，所述检测电路包括：Optionally, the detection circuit includes:
斩波稳定放大器，用于根据检测到的所述电容值，输出所述电容值对应的电压信号；A chopper-stabilized amplifier, configured to output a voltage signal corresponding to the capacitance value according to the detected capacitance value;
解调电路，与所述斩波稳定放大器连接，用于解调所述斩波稳定放大器输出的信号；A demodulation circuit, connected to the chopper-stabilized amplifier, for demodulating the signal output by the chopper-stabilized amplifier;
可编程增益放大器，与所述解调电路连接，用于对所述解调电路输出的信号进行增益处理；A programmable gain amplifier, connected to the demodulation circuit, for performing gain processing on the signal output by the demodulation circuit;
数字模数转换器，与所述可编程增益放大器连接，用于对所述可编程增益放大器输出的信号进行模数转换处理；A digital analog-to-digital converter, connected to the programmable gain amplifier, for performing analog-to-digital conversion processing on the signal output by the programmable gain amplifier;
滤波器，与所述数字模数转换器连接，用于对所述数字模数转换器输出的信号进行滤波处理。A filter, connected to the digital analog-to-digital converter, is used to filter the signal output by the digital analog-to-digital converter.
可选的，所述斩波稳定放大器包括：第一电容、运算放大器，其中，Optionally, the chopper-stabilized amplifier includes: a first capacitor and an operational amplifier, wherein,
所述第一电容的一端与预算放大器的第一输入端连接，所述第一电容的另一端与所述运算放大器的输出端连接；One end of the first capacitor is connected to the first input end of the budget amplifier, and the other end of the first capacitor is connected to the output end of the operational amplifier;
所述预算放大器的第一输入端连接所述导体对，所述运算放大器的第二输入端接地，所述运算放大器的输出端与所述解调电路连接。The first input end of the budgetary amplifier is connected to the conductor pair, the second input end of the operational amplifier is grounded, and the output end of the operational amplifier is connected to the demodulation circuit.
一种电子设备，该电子设备包括：An electronic device comprising:
壳体；case;
处理器，设置在所述壳体内；a processor disposed in the housing;
指纹检测器，与所述处理器连接，所述指纹检测器上述的指纹检测器。A fingerprint detector is connected with the processor, and the fingerprint detector is the above-mentioned fingerprint detector.
本发明实施例提供了一种指纹检测器，该指纹检测器包括：指纹识别模块，用于识别使用者的指纹；感测装置，至少包含两个导体对，至少两个导体对中的每个导体对分别与提供驱动信号的驱动电路连接，导体对设置在指纹识别模块的边缘；检测电路，分别与每个导体对连接，用于检测导体对上的电容值。通过该导体对可以上的电容值变化可以检测使用者的手指在指纹检测器上的移动以及移动方向，从而根据使用者的手指的移动以及移动方向进行对应的响应。An embodiment of the present invention provides a fingerprint detector, which includes: a fingerprint identification module for identifying a user's fingerprint; a sensing device comprising at least two conductor pairs, each of the at least two conductor pairs The conductor pairs are respectively connected to the drive circuit that provides the drive signal, and the conductor pairs are arranged on the edge of the fingerprint identification module; the detection circuit is respectively connected to each conductor pair, and is used to detect the capacitance value on the conductor pair. The movement and movement direction of the user's finger on the fingerprint detector can be detected through the change of the capacitance value on the conductor pair, so as to make a corresponding response according to the movement and movement direction of the user's finger.
在本发明实施例中，该指纹检测器不仅可以实现对指纹的检测，还可以通过指纹检测器上的感测装置以及检测电路确定出使用者的手指在指纹检测器上的滑动操作，即使用者手指在指纹检测器上是左滑还是右滑。从而使得指纹检测器可以使用者手指的滑动操作，进而提升了指纹检测的功能性以及实用性。In the embodiment of the present invention, the fingerprint detector can not only detect the fingerprint, but also determine the sliding operation of the user's finger on the fingerprint detector through the sensing device and the detection circuit on the fingerprint detector. Or whether the finger is swiping left or right on the fingerprint sensor. Therefore, the fingerprint detector can be operated by sliding the user's finger, thereby improving the functionality and practicability of fingerprint detection.
附图说明Description of drawings
图1为本发明实施例中一种指纹检测器的结构示意图之一；Fig. 1 is one of structural representations of a kind of fingerprint detector in the embodiment of the present invention;
图2为本发明实施例中检测电路的结构示意图；Fig. 2 is a schematic structural diagram of a detection circuit in an embodiment of the present invention;
图3为本发明实施例中斩波稳定放大器的电路结构示意图；3 is a schematic diagram of a circuit structure of a chopper-stabilized amplifier in an embodiment of the present invention;
图4为本发明实施例中一种指纹检测器的结构示意图之二；Fig. 4 is the second structural diagram of a fingerprint detector in the embodiment of the present invention;
图5为本发明实施例中一种指纹检测器的结构示意图之三。FIG. 5 is a third structural schematic diagram of a fingerprint detector in an embodiment of the present invention.
具体实施方式detailed description
为了解决现有技术中指纹检测器的功能单一以及使用率较低的问题，本发明实施例提供了一种指纹检测器，该指纹检测器包括：指纹识别模块，用于识别使用者的指纹；感测装置，至少包含两个导体对，至少两个导体对中的每个导体对分别与提供驱动信号的驱动电路连接，导体对设置在指纹识别模块的边缘；检测电路，分别与每个导体对连接，用于检测导体对上的电容值。该导体为互电容导体，当使用者的手指靠近该导体对时，该导体对上的电容值将发生改变，因此通过检测导体对上的电容值变化可以检测使用者的手指在指纹检测器上的移动以及移动方向，从而根据使用者的手指的移动以及移动方向进行对应的响应。In order to solve the problem of single function and low usage rate of the fingerprint detector in the prior art, an embodiment of the present invention provides a fingerprint detector, which includes: a fingerprint identification module for identifying a user's fingerprint; The sensing device includes at least two conductor pairs, and each conductor pair in the at least two conductor pairs is respectively connected to a driving circuit that provides a driving signal, and the conductor pair is arranged on the edge of the fingerprint identification module; the detection circuit is respectively connected to each conductor Pair connection, used to detect the capacitance value on the conductor pair. The conductor is a mutual-capacitance conductor. When the user's finger is close to the conductor pair, the capacitance value on the conductor pair will change. Therefore, by detecting the capacitance value change on the conductor pair, it can be detected that the user's finger is on the fingerprint detector. The movement and direction of movement of the user's finger, so as to respond correspondingly according to the movement and direction of movement of the user's finger.
上述的方案中说明本发明实施例中的指纹检测器的主体方案，下面通过附图以及具体实施例对本发明技术方案做详细的说明，应当理解，本发明实施例以及实施例中的具体技术特征只是对本发明技术方案的说明，而不是限定，在不冲突的情况下，本发明实施例以及实施例中的具体技术特征可以相互组合。The above-mentioned scheme illustrates the main scheme of the fingerprint detector in the embodiment of the present invention. The technical scheme of the present invention will be described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific technical features in the embodiments It is only an illustration of the technical solutions of the present invention, rather than a limitation. In the case of no conflict, the embodiments of the present invention and the specific technical features in the embodiments can be combined with each other.
如图1所示为本发明实施例中一种指纹检测器的结构示意图，该指纹检测器包括：As shown in Figure 1, it is a schematic structural diagram of a fingerprint detector in an embodiment of the present invention, and the fingerprint detector includes:
指纹识别模块101，指纹识别模块101中包含了多个检测子单元，每个检测子单元用户检测手指的部分指纹信息，由这些检测子单元组成的阵列可以该指纹识别模块，从而实现对使用者的指纹检测，进而通过该指纹识别可以得到使用者的指纹信息。Fingerprint recognition module 101, the fingerprint recognition module 101 has included a plurality of detection sub-units, each detection sub-unit user detects part of the fingerprint information of the finger, the array formed by these detection sub-units can be used for the fingerprint recognition module, thereby realizing the user Fingerprint detection, and then the user's fingerprint information can be obtained through the fingerprint identification.
感测装置102，该感测装置102由至少两个导体对组成，至少两个导体对中的每个导体分别与提供驱动信号的驱动电路连接，导体对设置在指纹识别模块101的边缘。Sensing device 102 , the sensing device 102 is composed of at least two conductor pairs, each conductor in the at least two conductor pairs is respectively connected to a driving circuit that provides a driving signal, and the conductor pairs are arranged on the edge of the fingerprint identification module 101 .
检测电路103，分别与每个导体对连接，用于检测所述导体对上的电容值。The detection circuit 103 is respectively connected to each conductor pair, and is used to detect the capacitance value on the conductor pair.
在图1中，感测装置102包含了第一导体对以及第二导体对，第一导体对以及第二导体对中每个导体对都包含了2个单独的导体，且每个导体的长度以及宽度都基本相同，从使得第一导体对以及第二导体对形成互电容。若是要是对互电容的电容值进行检测，则需要对第一导体对以及第二导体对施加一驱动信号，该驱动信号可以是电压驱动信号。In FIG. 1 , the sensing device 102 includes a first pair of conductors and a second pair of conductors, and each pair of conductors in the first pair of conductors and the second pair of conductors includes two separate conductors, and the length of each conductor is and the width are substantially the same, so that the first pair of conductors and the second pair of conductors form a mutual capacitance. If the capacitance value of the mutual capacitance is to be detected, a driving signal needs to be applied to the first conductor pair and the second conductor pair, and the driving signal may be a voltage driving signal.
因此，在本发明实施例中，第一导体对以及第二导体对连接至驱动电路，该驱动电路可以向第一导体对以及第二导体对施加一个电压驱动信号，该电压驱动信号能够使得第一导体对以及第二导体对形成各自的一个电场。Therefore, in the embodiment of the present invention, the first pair of conductors and the second pair of conductors are connected to the driving circuit, and the driving circuit can apply a voltage driving signal to the first pair of conductors and the second pair of conductors, and the voltage driving signal can make the first pair of conductors The first pair of conductors and the second pair of conductors form an electric field respectively.
在本发明实施例中，为了实现对第一导体对以及第二导体对的电容值检测，因此，第一导体对以及第二导体对上都连接了检测电路103，该检测电路103用于检测第一导体对以及第二导体对上的电容值。In the embodiment of the present invention, in order to realize the detection of the capacitance value of the first pair of conductors and the second pair of conductors, a detection circuit 103 is connected to the first pair of conductors and the second pair of conductors, and the detection circuit 103 is used to detect Capacitance values on the first pair of conductors and the second pair of conductors.
下面对该指纹检测器的工作原理进行详细的说明。The working principle of the fingerprint detector will be described in detail below.
首先来讲，在进行检测时，该电子设备将指示与第一导体对以及第二导体对的驱动电路向对导体对以及第二导体对施加一电压驱动信号，此时第一导体对以及第二导体对将被驱动。First of all, when performing detection, the electronic device will instruct the driving circuit of the first conductor pair and the second conductor pair to apply a voltage driving signal to the pair of conductors and the second conductor pair. At this time, the first conductor pair and the second conductor pair Two conductor pairs will be driven.
若是使用者将手指靠近左边的第一导体对时，该第一导体对上的电容值将发生改变，也就是，第一导体对上的电容值将增大。此时与第一导体对连接的检测电路103可以检测到第一导体对上的电容值的变化，也就是该检测电路103可以具体检测到第一导体对上的电容值，最后还检测电路将以数值的形式输出第一导体对的电容值，也就是以数值来表征第二导体对上的电容值的大小。If the user puts his finger close to the first pair of conductors on the left, the capacitance on the first pair of conductors will change, that is, the capacitance on the first pair of conductors will increase. At this time, the detection circuit 103 connected to the first conductor pair can detect the change of the capacitance value on the first conductor pair, that is, the detection circuit 103 can specifically detect the capacitance value on the first conductor pair, and finally the detection circuit will The capacitance value of the first pair of conductors is output in the form of a numerical value, that is, the magnitude of the capacitance value of the second pair of conductors is represented by a numerical value.
当然，若是使用者的手指靠近右边的第二导体对上，该第二导体对上的电容值也将发生改变，也就是，第二导体对上的电容值将增大，检测电路103同样的会检测到第二导体对上的电容值，最后以数值的形式来表征第二导体对的电容值大小。Of course, if the user's finger is close to the second conductor pair on the right, the capacitance value on the second conductor pair will also change, that is, the capacitance value on the second conductor pair will increase, and the detection circuit 103 will also The capacitance value on the second conductor pair is detected, and finally the capacitance value of the second conductor pair is represented in a numerical form.
然后，安装了该指纹检测器的电子设备通过将检测到的电容值与预设阈值进行比较判定是否有物体靠近第一导体对或者是第二导体对，比如说检测到第一导体对上的电容值超过预设阈值时，则说明有物体靠近第一导体对，此时该电子设备将进行对应的响应，若是检测到第二导体对上的电容值超过预设阈值时，则说明有物体靠近第二导体对，此时该电子设备也将进行对应的响应。Then, the electronic device installed with the fingerprint detector judges whether there is an object close to the first conductor pair or the second conductor pair by comparing the detected capacitance value with the preset threshold value, for example, detecting the When the capacitance value exceeds the preset threshold value, it means that there is an object approaching the first conductor pair. At this time, the electronic device will respond accordingly. If it detects that the capacitance value on the second conductor pair exceeds the preset threshold value, it means that there is an object When approaching the second conductor pair, the electronic device will respond accordingly.
进一步，在本发明实施例中，通过第一导体对以及第二导体对还可以实现使用者手指在指纹检测器上的滑动操作。具体来讲，当驱动电路向第一导体对以及第二导体对上施加电压驱动信号之后，若是使用者将手指由指纹检测器的左边向右边滑动时，使用者手指首先会靠近第一导体对，此时第一导体对上的电容值将增加，在使用者的手指逐渐向右滑动时，使用者的手指将远离第一导体对，并且逐渐的接近第二导体对，此时第一导体对上的电容值将减小，而第二导体对的电容值将逐渐增加。该指纹检测器通过检测到第一导体对上的电容值由大减小的过程可以确定使用者是在进行滑动的操作，进一步根据第二导体对上的电容值由小增大的过程可以确定出使用者的手指是自左向右的滑动。Further, in the embodiment of the present invention, the sliding operation of the user's finger on the fingerprint detector can also be realized through the first pair of conductors and the second pair of conductors. Specifically, after the driving circuit applies a voltage driving signal to the first pair of conductors and the second pair of conductors, if the user slides his finger from the left side of the fingerprint detector to the right, the user's finger will first approach the first pair of conductors. , at this time, the capacitance value on the first conductor pair will increase. When the user’s finger slides to the right gradually, the user’s finger will move away from the first conductor pair and gradually approach the second conductor pair. At this time, the first conductor The capacitance value on the pair will decrease, while the capacitance value of the second conductor pair will gradually increase. The fingerprint detector can determine that the user is performing a sliding operation by detecting that the capacitance value on the first conductor pair decreases from a large value, and further determines that the capacitance value on the second conductor pair increases from a small value The user's finger slides from left to right.
同理，对于从右往左滑动的过程也一样，也就是首先会检测到第二导体对的电容值从大到小的过程，然后会检测到第一导体的电容值从小变大的过程，最后通过该电容值的变化就可以确定该使用者的手指在指纹检测器上自右向左的滑动操作。The same is true for the process of sliding from right to left, that is, the process of the capacitance value of the second conductor pair from large to small will be detected first, and then the process of the capacitance value of the first conductor from small to large will be detected. Finally, the sliding operation of the user's finger on the fingerprint detector from right to left can be determined through the change of the capacitance value.
进一步，为了保证检测电路103对第一导体对以及第二导体对的电容值的检测，因此如图2所示，该检测电路103中包含了斩波稳定放大器201、解调电路202、可编程增益放大器203、数字模数转换器204、滤波器205。Further, in order to ensure that the detection circuit 103 detects the capacitance values of the first conductor pair and the second conductor pair, as shown in Figure 2, the detection circuit 103 includes a chopper-stabilized amplifier 201, a demodulation circuit 202, a programmable Gain amplifier 203 , digital-to-analog converter 204 , filter 205 .
具体来讲，斩波稳定放大器201，用于根据检测到的电容值，输出该电容值对应的电压信号。如图3所示，该斩波稳定放大器201包含了第一电容301、运算放大器302，该第一电容301的一端与运算放大器302的第一输入端连接，第一电容301的另一端与运算放大器302的输出端连接。运算放大器302的第一输入端连接导体对，运算放大器302的第二输入端接地，运算放大器302的输出端与解调电路连接。通过该电路结构，可以使得斩波稳定放大器201的输出结果与导体对上的电容值成正比，从而通过斩波稳定放大器201的输出结果就能够确定出该导体对上的电容值的变化。Specifically, the chopper-stabilized amplifier 201 is configured to output a voltage signal corresponding to the detected capacitance value according to the detected capacitance value. As shown in Figure 3, the chopper-stabilized amplifier 201 includes a first capacitor 301 and an operational amplifier 302, one end of the first capacitor 301 is connected to the first input end of the operational amplifier 302, and the other end of the first capacitor 301 is connected to the operational amplifier 302. The output of the amplifier 302 is connected. The first input terminal of the operational amplifier 302 is connected to the conductor pair, the second input terminal of the operational amplifier 302 is grounded, and the output terminal of the operational amplifier 302 is connected to the demodulation circuit. Through this circuit structure, the output result of the chopper-stabilized amplifier 201 can be directly proportional to the capacitance value on the conductor pair, so the change of the capacitance value on the conductor pair can be determined through the output result of the chopper-stabilized amplifier 201 .
另外，需要说明的是，为了保证斩波稳定放大器201输出的信号的信噪比较好，因此需要保证驱动电路输出的驱动电压信号的幅度要尽可能的大，从而保证斩波稳定放大器201输出的信号的信噪比较好，并且也可以保证后续得到的信号的信噪比较好。In addition, it should be noted that, in order to ensure that the signal-to-noise ratio of the signal output by the chopper-stabilized amplifier 201 is good, it is necessary to ensure that the amplitude of the driving voltage signal output by the drive circuit is as large as possible, so as to ensure that the chopper-stabilized amplifier 201 outputs The signal-to-noise ratio of the obtained signal is good, and it can also ensure that the signal-to-noise ratio of the subsequent signal is good.
由于最后输出的结果需要为表征导体上电容值的数值，因此在斩波稳定放大器201输出一个电容值对应的电压信号之后，解调电路202将接收到该电压信号，并解调该电压信号，然后将结果输出给可编程增益放大器203，然后可编程增益放大器203对该解调电路输出的信号进行增益处理，也就是成倍的放大该信号。Since the final output result needs to be a numerical value representing the capacitance value on the conductor, after the chopper-stabilized amplifier 201 outputs a voltage signal corresponding to the capacitance value, the demodulation circuit 202 will receive the voltage signal and demodulate the voltage signal, Then output the result to the programmable gain amplifier 203, and then the programmable gain amplifier 203 performs gain processing on the signal output by the demodulation circuit, that is, multiplies the signal.
在可编程增益放大器203对该信号进行增益处理之后，输出的信号将被传输到数字模数转换器204，该数字模数转换器204用于对可编程增益放大器203输出的信号进行模数转换处理。具体来讲，由于最后该电容值是以数值的形式得到，所以需要将可编程增益放大器203输出的数字信号转换为模拟信号，因此该数字模数转换器204就将可编程增益放大器203输出的经过增益处理的数字信号转换为模拟信号。After the programmable gain amplifier 203 performs gain processing on the signal, the output signal will be transmitted to the digital analog-to-digital converter 204, and the digital analog-to-digital converter 204 is used to perform analog-to-digital conversion on the signal output by the programmable gain amplifier 203 deal with. Specifically, since the capacitance value is finally obtained in numerical form, it is necessary to convert the digital signal output by the programmable gain amplifier 203 into an analog signal, so the digital-to-analog converter 204 converts the output signal of the programmable gain amplifier 203 into an analog signal. The gain-processed digital signal is converted to an analog signal.
数字模拟转换器204将数字信号转换为模拟信号之后，数字模拟转换器204会将模拟信号发送至滤波器205进行处理，该滤波器205用于对数字模拟转换器204输出的信号进行滤波处理，也就是说数字模拟转换器204输出的信号可能不是纯的模拟信号，因此需要通过滤波器205滤除掉模拟信号中的数字信号，以及滤波掉可能产生的噪声等等，这样可以是的最后输出的模拟信号更加准确完整。After the digital-to-analog converter 204 converts the digital signal into an analog signal, the digital-to-analog converter 204 sends the analog signal to the filter 205 for processing, and the filter 205 is used to filter the signal output by the digital-to-analog converter 204, That is to say, the signal output by the digital-to-analog converter 204 may not be a pure analog signal, so it is necessary to filter out the digital signal in the analog signal through the filter 205, and filter out possible noise, etc., so that it can be the final output The analog signal is more accurate and complete.
通过上述实施例中的描述，该指纹检测器不仅可以实现对指纹的检测，还可以通过指纹检测器上的感测装置102以及检测电路103确定出使用者的手指在指纹检测器上的滑动操作，即使用者手指在指纹检测器上是左滑还是右滑。从而使得指纹检测器可以使用者手指的滑动操作，进而提升了指纹检测的功能性以及实用性。Through the description in the above embodiment, the fingerprint detector can not only realize the detection of the fingerprint, but also can determine the sliding operation of the user's finger on the fingerprint detector through the sensing device 102 and the detection circuit 103 on the fingerprint detector , that is, whether the user swipe left or right on the fingerprint sensor. Therefore, the fingerprint detector can be operated by sliding the user's finger, thereby improving the functionality and practicability of fingerprint detection.
进一步，在上述的实施例中，该指纹检测器的感测装置102包含的是两个导体对，从而保证感测装置102能够检测到使用者手指在指纹检测器上的左右滑动操作。Further, in the above-mentioned embodiment, the sensing device 102 of the fingerprint detector includes two conductor pairs, so as to ensure that the sensing device 102 can detect the left and right sliding operation of the user's finger on the fingerprint detector.
为了使得指纹检测器上的感测装置102能够检测到使用者的手指在指纹检测器上的四个方向上的滑动操作，因此感测装置102除了包含第一导体对以及第二导体对之外，还可以包含第三导体对以及第四导体对(如图4所示)，在图4中，该第三导体对以及第四导体对都设置在指纹识别模块101的边缘，第三导体对以及第四导体对与第一导体对以及第二导体对围成一个矩形区域，而指纹识别模块101位于该矩形区域内。In order to enable the sensing device 102 on the fingerprint detector to detect the sliding operation of the user's finger in four directions on the fingerprint detector, the sensing device 102 includes the first pair of conductors and the second pair of conductors , may also include a third pair of conductors and a fourth pair of conductors (as shown in FIG. 4 ). In FIG. And the fourth conductor pair, the first conductor pair and the second conductor pair enclose a rectangular area, and the fingerprint recognition module 101 is located in the rectangular area.
通过第一导体对以及第二导体对组成的感测装置102可以检测到使用者手指在指纹检测器上的左滑以及右滑，通过第三导体对以及第四导体对可以实现对使用者手指的上滑以及下滑，当然，对第三导体对以及第四导体对的电容值的检测与第一导体对的检测方法相同，此处就不再赘述。The sensing device 102 composed of the first pair of conductors and the second pair of conductors can detect the left and right slides of the user's finger on the fingerprint detector, and the third pair of conductors and the fourth pair of conductors can realize the detection of the user's finger. Of course, the detection method of the capacitance values of the third conductor pair and the fourth conductor pair is the same as that of the first conductor pair, and will not be repeated here.
因此，图4所示的指纹检测器可以检测到使用者手指在指纹检测器上的自左向右的滑动操作、自右向左的滑动操作、自上而下的滑动操作以及自下而上的滑动操作。进而保证指纹检测器可以检测到使用者的手指在指纹检测器上的各个方向的滑动操作。Therefore, the fingerprint detector shown in Figure 4 can detect the sliding operation of the user's finger on the fingerprint detector from left to right, from right to left, from top to bottom, and from bottom to top. swipe action. Furthermore, it is ensured that the fingerprint detector can detect the sliding operation of the user's finger on the fingerprint detector in various directions.
进一步，在本发明实施例中，该指纹检测器还可以是如图5所示的结构，在图3所示的结构中，该指纹检测器中的感测装置102包含了6个导体对，这6个导体对形成了一个正6边形，通过该正6边形上的结构可以更加准确的对使用者的手指在指纹检测器上的滑动检测，比如说手指在指纹检测器的左上角向右下角滑动，通过图5所示的指纹检测器就能够较为准确的检测到该滑动操作。Further, in the embodiment of the present invention, the fingerprint detector can also have a structure as shown in FIG. 5. In the structure shown in FIG. 3, the sensing device 102 in the fingerprint detector includes 6 conductor pairs, These 6 conductor pairs form a regular hexagon, and the structure on the regular hexagon can more accurately detect the sliding of the user's finger on the fingerprint detector, for example, the finger is in the upper left corner of the fingerprint detector Sliding to the lower right corner, the sliding operation can be detected more accurately by the fingerprint detector shown in Figure 5 .
当然，在本发明实施例中，该指纹检测器的除了可以是图4以及图5所示的结构之外，还可以是其他结果，比如说将感测装置102调整为包含8个导体对，或者是将感测装置102调整为包含10个导体对的指纹检测器。从而可以使得该指纹检测器可以更加全面的检测到使用者的手指在指纹检测器上的各个方向上的滑动操作。Of course, in the embodiment of the present invention, the fingerprint detector can have other results besides the structures shown in FIG. 4 and FIG. Alternatively, the sensing device 102 is adjusted to be a fingerprint detector comprising 10 conductor pairs. Therefore, the fingerprint detector can more comprehensively detect the sliding operation of the user's finger on the fingerprint detector in all directions.
另外，还需要说明是，在本发明实施例中，检测电路103除了本实施例所例举的电路结构之外，其他可以实现相同功能的电路结构也包含在本发明技术方案的所保护的范围内。In addition, it should be noted that, in the embodiment of the present invention, in addition to the circuit structure exemplified in this embodiment, other circuit structures that can realize the same function are also included in the protection scope of the technical solution of the present invention. Inside.
综上所述，在本发明实施例中，该指纹检测器中除了包含指纹识别模块之外，还包含可以检测使用者手指在指纹检测器上的滑动操作的感测装置，并且通过与感测装置连接的检测电路可以较为准确的分析出该使用者的手指的滑动方向，从而使得设置该指纹检测器的电子设备可以较为准确的根据使用者的手指的滑动方向来进行对应的响应。To sum up, in the embodiment of the present invention, in addition to the fingerprint recognition module, the fingerprint detector also includes a sensing device that can detect the sliding operation of the user's finger on the fingerprint detector, and through the The detection circuit connected to the device can accurately analyze the sliding direction of the user's finger, so that the electronic device provided with the fingerprint detector can respond more accurately according to the sliding direction of the user's finger.
进一步，在本发明实施例中，还提供了一种电子设备，该电子设备包含了壳体、处理器、指纹检测器，其中，Further, in an embodiment of the present invention, an electronic device is also provided, the electronic device includes a casing, a processor, and a fingerprint detector, wherein,
处理器设置在该壳体内，处理器与指纹检测器连接，此处的指纹检测器就为上述的指纹检测器。该指纹检测器的具体结构以及实现原理在上述的实施例中进行了详细的描述，此处就不再多余赘述。The processor is arranged in the housing, and the processor is connected to the fingerprint detector, where the fingerprint detector is the above-mentioned fingerprint detector. The specific structure and implementation principle of the fingerprint detector have been described in detail in the above-mentioned embodiments, and will not be repeated here.
尽管已描述了本申请的优选实施例，但本领域内的普通技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。While preferred embodiments of the present application have been described, additional changes and modifications to these embodiments can be made by those of ordinary skill in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the application.
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510254395.2ACN106295467A (en) | 2015-05-18 | 2015-05-18 | A kind of fingerprint detector and electronic equipment |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510254395.2ACN106295467A (en) | 2015-05-18 | 2015-05-18 | A kind of fingerprint detector and electronic equipment |
| Publication Number | Publication Date |
|---|---|
| CN106295467Atrue CN106295467A (en) | 2017-01-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510254395.2APendingCN106295467A (en) | 2015-05-18 | 2015-05-18 | A kind of fingerprint detector and electronic equipment |
| Country | Link |
|---|---|
| CN (1) | CN106295467A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103314527A (en)* | 2011-01-05 | 2013-09-18 | 德克萨斯仪器股份有限公司 | Circuit and method for reducing input leakage in chopped amplifier during overload conditions |
| US20140077823A1 (en)* | 2012-09-14 | 2014-03-20 | Stmicroelectronics Asia Pacific Pte. Ltd. | High signal to noise ratio capacitive sensing analog front-end |
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| CN104007884A (en)* | 2013-02-25 | 2014-08-27 | 三星电子株式会社 | Operational amplifier and touch sensing apparatus including the same |
| CN104143092A (en)* | 2014-08-26 | 2014-11-12 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition detection element, using method of fingerprint recognition detection element and electronic device |
| CN204808354U (en)* | 2015-05-18 | 2015-11-25 | 成都艾德沃传感技术有限公司 | Fingerprint detector and electronic equipment |
| CN204808353U (en)* | 2015-05-18 | 2015-11-25 | 成都艾德沃传感技术有限公司 | Fingerprint detector and electronic equipment |
| CN106295465A (en)* | 2015-05-18 | 2017-01-04 | 成都艾德沃传感技术有限公司 | A kind of fingerprint detector and electronic equipment |
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| CN103314527A (en)* | 2011-01-05 | 2013-09-18 | 德克萨斯仪器股份有限公司 | Circuit and method for reducing input leakage in chopped amplifier during overload conditions |
| US20140077823A1 (en)* | 2012-09-14 | 2014-03-20 | Stmicroelectronics Asia Pacific Pte. Ltd. | High signal to noise ratio capacitive sensing analog front-end |
| CN104007884A (en)* | 2013-02-25 | 2014-08-27 | 三星电子株式会社 | Operational amplifier and touch sensing apparatus including the same |
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| CN204808354U (en)* | 2015-05-18 | 2015-11-25 | 成都艾德沃传感技术有限公司 | Fingerprint detector and electronic equipment |
| CN204808353U (en)* | 2015-05-18 | 2015-11-25 | 成都艾德沃传感技术有限公司 | Fingerprint detector and electronic equipment |
| CN106295465A (en)* | 2015-05-18 | 2017-01-04 | 成都艾德沃传感技术有限公司 | A kind of fingerprint detector and electronic equipment |
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