公开(公告)号：WO2016197940A1

公开(公告)日：2016-12-15

申请号：PCT/CN2016/085234

申请日：2016-06-08

Applicant: BYD COMPANY LIMITED

Inventor： LI, Zhengang ,  XU, Kunping ,  YANG, Yun

IPC: G06K9/00

CPC classification number: G06K9/0002

Abstract: a method and an apparatus for adjusting an excitation voltage of a fingerprint detection chip (100) and a fingerprint detection chip (100). The fingerprint detection chip (100) has a signal transmitting unit, a first detection area (110) and a second detection area (120), each of the first detection area (110) and the second detection area (120) has a plurality of detection units (121), the first detection area (110) is configured to detect a fingerprint capacitance, a metal ring (200) is located on the fingerprint detection chip (100), the metal ring (200) at least partially covers the second detection area (120). Improving efficiency of fingerprint detection.

Abstract translation: 一种用于调整指纹检测芯片（100）和指纹检测芯片（100）的激励电压的方法和装置。 指纹检测芯片（100）具有信号发送单元，第一检测区域（110）和第二检测区域（120），第一检测区域（110）和第二检测区域（120）中的每一个具有多个 检测单元（121），第一检测区域（110）被配置为检测指纹电容，金属环（200）位于指纹检测芯片（100）上，金属环（200）至少部分地覆盖第二 检测区域（120）。 提高指纹检测的效率。

公开(公告)号：WO2016127738A1

公开(公告)日：2016-08-18

申请号：PCT/CN2016/070196

申请日：2016-01-05

Applicant: BYD COMPANY LIMITED

Inventor： LI, Zhengang ,  XU, Kunping ,  YANG, Yun

IPC: G06K9/00

CPC classification number: G06K9/0002

Abstract: A fingerprint detection circuit and a corresponding method are provided. The circuit (100) includes a fingerprint collecting module (102) and a processing module (104). The fingerprint collecting module (102) includes a plurality of collecting units (112), and each collecting unit (112) has a regulation voltage and is configured to output a first voltage or a second voltage according to a capacitance value of one of ridge capacitors, a capacitance value of one of ridge capacitors and the regulation voltage. The processing module (104) is configured to amplify the first and second voltages by a predetermined factor, to calculate a difference between the amplified first and second voltages, and to determine whether the difference is greater than or equal to the predetermined threshold. If no, the processing module (104) adjusts at least one parameter, and configures the fingerprint detection circuit (102) using at least one adjusted parameter.

Abstract translation: 提供了一种指纹检测电路和相应的方法。 电路（100）包括指纹采集模块（102）和处理模块（104）。 指纹收集模块（102）包括多个收集单元（112），并且每个收集单元（112）具有调节电压，并且被配置为根据脊电容器之一的电容值输出第一电压或第二电压 ，脊电容之一的电容值和调节电压。 处理模块（104）被配置为以预定的因子放大第一和第二电压，以计算放大的第一和第二电压之间的差，并且确定该差是否大于或等于预定阈值。 如果否，则处理模块（104）调整至少一个参数，并且使用至少一个调整参数来配置指纹检测电路（102）。

公开(公告)号：WO2016127733A1

公开(公告)日：2016-08-18

申请号：PCT/CN2016/070190

申请日：2016-01-05

Applicant: BYD COMPANY LIMITED

Inventor： LI, Zhengang ,  XU, Kunping ,  YANG, Yun

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  G06K9/001

Abstract: A fingerprint detection circuit and an electronic device are provided. The fingerprint detection circuit, configured to apply an excitation signal to a finger so as to generate finger capacitors, the fingerprint detection circuit including: a signal amplifier having a negative input terminal connected with one of the finger capacitors, a positive input terminal connected with a ground terminal, and an output terminal to output an output voltage according to a capacitance value of one of the finger capacitors; a capacitor, connected between the negative terminal and the output terminal of the signal amplifier; a rheostat; and a switch unit connected with the rheostat in series, and configured to control the rheostat to be connected with the capacitor in parallel, such that the output voltage has a non-linear relationship with the capacitance value of one of the finger capacitors.

Abstract translation: 提供指纹检测电路和电子设备。 所述指纹检测电路被配置为向手指施加激励信号以产生指状电容器，所述指纹检测电路包括：信号放大器，具有与所述指状电容器之一连接的负输入端子，与所述指状电容器连接的正输入端子 接地端子和输出端子，以根据一个手指电容器的电容值输出输出电压; 电容器，连接在信号放大器的负极端子和输出端子之间; 变阻器 以及开关单元，其与所述变阻器串联连接，并且被配置为并联控制所述变阻器与所述电容器连接，使得所述输出电压与所述指状电容器之一的电容值具有非线性关系。

公开(公告)号：WO2016127737A1

公开(公告)日：2016-08-18

申请号：PCT/CN2016/070195

申请日：2016-01-05

Applicant: BYD COMPANY LIMITED

Inventor： LI, Zhengang ,  XU, Kunping ,  YANG, Yun

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  H03F3/005 ,  H03F2200/129

Abstract: A fingerprint detection circuit and an electronic device are provided. The fingerprint detection circuit, configured to apply an excitation signal to a finger so as to generate a finger capacitor, the fingerprint detection circuit including: a signal amplifier having a negative input terminal connected with the finger capacitor, a positive input terminal connected with a voltage reference terminal, and an output terminal to output an output voltage according to a capacitance value of the finger capacitor; a capacitor; and a switch unit connected with the negative input terminal and the output terminal of the signal amplifier respectively, and configured to control the capacitor to be connected between the negative input terminal and the output terminal of the signal amplifier, such that the output voltage has a non-linear relationship with the capacitance value of the finger capacitor.

Abstract translation: 提供指纹检测电路和电子设备。 指纹检测电路，被配置为向手指施加激励信号以产生手指电容器，所述指纹检测电路包括：具有与所述手指电容器连接的负输入端子的信号放大器，与所述手指电容器连接的正输入端子 参考端子和输出端子，以根据手指电容器的电容值输出输出电压; 电容器 以及开关单元，分别与信号放大器的负输入端子和输出端子相连，并且被配置为控制要连接在信号放大器的负输入端子和输出端子之间的电容器，使得输出电压具有 与手指电容的电容值非线性关系。

公开(公告)号：WO2011012054A1

公开(公告)日：2011-02-03

申请号：PCT/CN2010/075255

申请日：2010-07-19

Applicant: BYD COMPANY LIMITED ,  LI, Hai ,  XU, Kunping ,  YANG, Yun ,  FENG, Wei

Inventor： LI, Hai ,  XU, Kunping ,  YANG, Yun ,  FENG, Wei

IPC: G10L21/02

CPC classification number: G10L21/0208

Abstract: A method for eliminating background noise may comprise a) detecting a characteristic value of an audio signal to obtain a characteristic signal reflecting a change trend of the audio signal; b) multiplying the characteristic signal and the audio signal to obtain a product signal; and c) 5 amplifying the product signal proportionally and outputting the amplified product signal. A device for eliminating background noise is also disclosed.

Abstract translation: 消除背景噪声的方法可以包括：a）检测音频信号的特征值以获得反映音频信号的变化趋势的特征信号; b）乘以特征信号和音频信号以获得乘积信号; 和c）5成比例地放大产品信号并输出​​放大的产品信号。 还公开了用于消除背景噪声的装置。

公开(公告)号：WO2010124561A1

公开(公告)日：2010-11-04

申请号：PCT/CN2010/071861

申请日：2010-04-17

Applicant: BYD COMPANY LIMITED ,  ZHAO, Jing ,  YANG, Gangjian ,  XU, Kunping ,  LI, Hai ,  YANG, Yun ,  FENG, Wei

Inventor： ZHAO, Jing ,  YANG, Gangjian ,  XU, Kunping ,  LI, Hai ,  YANG, Yun ,  FENG, Wei

IPC: H04R1/00

CPC classification number: H04R19/005 ,  H04R19/016 ,  H04R2410/03

Abstract: The present invention discloses a microphone, which may comprise an inner unit comprising a microphone module; a driver module coupled to the microphone module; a noise cancellation module coupled to the driver module; and a housing for accommodating the inner unit. At least two modules selected from the microphone module, the driver module and the noise cancellation module may be integrated in a chip. The microphone according to the present invention has a smaller volume with reduced technical complexity.

Abstract translation: 本发明公开了一种麦克风，其可以包括包括麦克风模块的内部单元; 耦合到所述麦克风模块的驱动器模块; 耦合到所述驱动器模块的噪声消除模块; 以及用于容纳内部单元的壳体。 从麦克风模块，驱动器模块和噪声消除模块中选择的至少两个模块可以集成在芯片中。 根据本发明的麦克风具有较小的体积，降低了技术复杂性。

公开(公告)号：WO2010115359A1

公开(公告)日：2010-10-14

申请号：PCT/CN2010/071334

申请日：2010-03-25

Applicant: BYD COMPANY LIMITED ,  LI, Hai ,  XU, Kunping ,  ZHANG, Lizhen ,  YANG, Yun ,  FENG, Wei

Inventor： LI, Hai ,  XU, Kunping ,  ZHANG, Lizhen ,  YANG, Yun ,  FENG, Wei

IPC: G10L21/02 ,  G10L11/02

CPC classification number: G10L21/0208 ,  G10L2021/02168

Abstract: A method for eliminating background noise and a device thereof are provided. The method may comprise the steps of : detecting an effective value of a received audio signal to generate an output signal corresponding to an average power of the received audio signal (step A); generating a noise eliminating control signal by comparing the output signal corresponding to the average power signal with first threshold determined based on the difference between an average power of the voice signal and an average power of the noise signal (step B); eliminating the noise signal from the received audio signal, and amplifying the voice signal in the received audio signal with the control of the noise eliminating control signal. Based on the method and device, the background noise may be eliminated effectively.

Abstract translation: 提供消除背景噪声的方法及其装置。 该方法可以包括以下步骤：检测所接收的音频信号的有效值以产生对应于所接收的音频信号的平均功率的输出信号（步骤A）; 通过将对应于平均功率信号的输出信号与基于语音信号的平均功率和噪声信号的平均功率之间的差异确定的第一阈值相比较来产生噪声消除控制信号（步骤B）; 消除来自接收到的音频信号的噪声信号，并且通过噪声消除控制信号的控制来放大所接收的音频信号中的语音信号。 基于该方法和装置，可以有效地消除背景噪声。

公开(公告)号：EP3256987A1

公开(公告)日：2017-12-20

申请号：EP16748538.2

申请日：2016-01-05

Applicant: BYD Company Limited

Inventor： LI, Zhengang ,  XU, Kunping ,  YANG, Yun

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  H03F3/005 ,  H03F2200/129

Abstract: A fingerprint detection circuit and an electronic device are provided. The fingerprint detection circuit is configured to apply an excitation signal to a finger so as to generate a finger capacitor, and the fingerprint detection circuit includes: a signal amplifier having a negative input terminal connected with the finger capacitor, a positive input terminal connected with a voltage reference terminal, and an output terminal to output an output voltage according to a capacitance value of the finger capacitor; a capacitor; and a switch unit connected with the negative input terminal and the output terminal of the signal amplifier respectively, and configured to control the capacitor to be connected between the negative input terminal and the output terminal of the signal amplifier, such that the output voltage has a non-linear relationship with the capacitance value of the finger capacitor.

公开(公告)号：EP3258415A1

公开(公告)日：2017-12-20

申请号：EP16748535.8

申请日：2016-01-05

Applicant: BYD Company Limited

Inventor： LI, Zhengang ,  XU, Kunping ,  YANG, Yun

IPC: G06K9/00

CPC classification number: G06K9/0008 ,  G06K9/00 ,  G06K9/00013 ,  G06K9/001 ,  G06T3/4038

Abstract: The present disclosure provides a fingerprint identification method and apparatus. The fingerprint identification method includes obtaining a to-be-identified fingerprint image and extracting first characteristic points of the to-be-identified fingerprint image; determining whether a number of the first characteristic points of the to-be-identified fingerprint image is less than a predetermined threshold; when the number of the first characteristic points of the to-be-identified fingerprint image is less than the predetermined threshold, selecting a fingerprint template image according to the number of the first characteristic points; extracting second characteristic points in the fingerprint template image matching with the first characteristic points of the to-be-identified fingerprint image; overlapping the fingerprint template image with the to-be-identified fingerprint image according to the first characteristic points of the to-be-identified fingerprint image and the second characteristic points of the fingerprint template image to form an overlapped image; determining a valid coincidence region between the to-be-identified fingerprint image and the fingerprint template image in the overlapped image; and determining whether the to-be-identified fingerprint image matches the fingerprint template image according to the valid coincidence region to generate a matching result and performing fingerprint identification based on the matching result. According to the disclosed method, fingerprint identification with less characteristic points can be realized, thus improving the success rate of the fingerprint identification, and reducing the identification error rate.

Abstract translation: 本公开提供了一种指纹识别方法和装置。 该指纹识别方法包括：获取待识别指纹图像并提取该待识别指纹图像的第一特征点; 判断待识别指纹图像的第一特征点的数量是否小于预定阈值; 当所述待识别指纹图像的第一特征点的数量小于所述预定阈值时，根据所述第一特征点的数量选择指纹模板图像; 提取与所述待识别指纹图像的第一特征点匹配的指纹模板图像中的第二特征点; 根据待识别指纹图像的第一特征点与指纹模板图像的第二特征点，将指纹模板图像与待识别指纹图像重叠形成重叠图像; 确定所述待识别指纹图像与所述重叠图像中的所述指纹模板图像之间的有效重合区域; 根据所述有效符合区域判断所述待识别指纹图像是否与所述指纹模板图像匹配，生成匹配结果，并根据匹配结果进行指纹识别。 根据所公开的方法，可以实现特征点较少的指纹识别，提高了指纹识别的成功率，降低了识别错误率。

公开(公告)号：EP3256986A1

公开(公告)日：2017-12-20

申请号：EP16748534.1

申请日：2016-01-05

Applicant: BYD Company Limited

Inventor： LI, Zhengang ,  XU, Kunping ,  YANG, Yun

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  G06K9/001

Abstract: A fingerprint detection circuit and an electronic device are provided. The fingerprint detection circuit is configured to apply an excitation signal to a finger so as to generate finger capacitors, and the fingerprint detection circuit includes: a signal amplifier having a negative input terminal connected with one of the finger capacitors, a positive input terminal connected with a ground terminal, and an output terminal to output an output voltage according to a capacitance value of the one of the finger capacitors; a capacitor connected between the negative terminal and the output terminal of the signal amplifier; a rheostat; and a switch unit connected with the rheostat in series and configured to control the rheostat to be connected with the capacitor in parallel, such that the output voltage has a non-linear relationship with the capacitance value of the one of the finger capacitors.