DATA COMMUNICATION DEVICE AND SYSTEM
    31.
    发明申请

    公开(公告)号:US20190227610A1

    公开(公告)日:2019-07-25

    申请号:US16333212

    申请日:2017-09-01

    发明人: Dongsheng LI

    IPC分类号: G06F1/26 G06F13/40

    摘要: The present disclosure provides a data communication device and a data communication system. The data communication device includes a power supply interface coupled to a direct current power supply, a wired communication interface, a main control chip, and an energy storage component. The data communication system includes a master communication device and a slave communication device.

    METHOD FOR KEEPING ACTIVE STATE OF SMART CARD UNTIL RE-ENTERING FIELD, AND SMART CARD

    公开(公告)号:US20190026508A1

    公开(公告)日:2019-01-24

    申请号:US16069876

    申请日:2017-01-12

    发明人: Dongsheng LI

    IPC分类号: G06K7/10 G06K19/07

    摘要: A method and a device for keeping an active state of a smart card until re-entering a field, and a smart card are provided. The method includes: sending a waiting time extension instruction by a smart card to an electronic device when the smart card is in an electromagnetic field of the electronic device and in an active state; starting a timer after the smart card receives a reply in response to the waiting time extension instruction; detecting that the smart card leaves the field, determining whether the timer times out, and keeping a current state of the smart card as the active state when the timer does not time out and detecting that the smart card re-enters the field, determining whether the timer times out, and keeping the current state of the smart card as the active state when the timer does not time out.

    ON-OFF APPARATUS AND ELECTRONIC DEVICE
    33.
    发明申请

    公开(公告)号:US20180351413A1

    公开(公告)日:2018-12-06

    申请号:US15779053

    申请日:2016-11-22

    发明人: Dongsheng LI

    IPC分类号: H02J50/20 H04B5/00

    摘要: An on-off apparatus and an electronic device are provided. The on-off apparatus includes: an AC input end, an AC output end, an on-off module, a first DC isolating component and a second DC isolating component. The on-off module includes a first pin, a second pin, a third pin, a fourth pin and a control pin. The third pin is connected to a DC power supply. The fourth pin is connected to ground. The control pin is configured to receive a control signal. The on-off module is configured to turn on or off a path between the third pin and the fourth pin under control of the control signal.

    Electronic equipment
    34.
    发明授权

    公开(公告)号:US10043123B2

    公开(公告)日:2018-08-07

    申请号:US15550641

    申请日:2016-01-28

    发明人: Dongsheng Li

    IPC分类号: G06K19/07 G06K19/077

    摘要: An electronic device includes: a coil, a chip with a contact-less function, a rectifier and a switcher. The switcher is connected between the coil and the chip. A first output terminal of the coil is connected to a first input terminal of the rectifier and a second input terminal of the chip. The coil is configured to sense a field and output an AC signal; the rectifier is used for receiving an AC signal input by the coil and outputting electric power through a second output terminal of the rectifier. The switcher is used for connecting the coil with the chip under an input operating voltage, and controlling a connection or disconnection of the coil and the chip according to a control signal when the control signal is received.

    Audio apparatus and audio communication channel circuit

    公开(公告)号:US09871553B2

    公开(公告)日:2018-01-16

    申请号:US15518380

    申请日:2015-08-04

    发明人: Dongsheng Li

    摘要: Disclosed are audio apparatuses and audio communication channel circuits. The circuit includes an audio connector, an identification circuit, a first and a second audio communication channel. An output terminal of the first channel is connected to one of a first and a second pin, an output terminal of the second channel is connected to the other, a first terminal of the identification circuit is connected to one of the first and second pin, and a second terminal of the identification circuit is connected to the other. The circuit further includes: a first pull-down resistor with a first terminal connected to the first channel and a second terminal connected to ground; and a second pull-down resistor with a first terminal connected to the second channel and a second terminal connected to ground. With the present disclosure, the type of hosts that may be compatible with the audio apparatus is enlarged.

    DATA DECODING METHOD AND APPARATUS
    36.
    发明申请

    公开(公告)号:US20170140767A1

    公开(公告)日:2017-05-18

    申请号:US15127731

    申请日:2015-01-15

    发明人: Dongsheng Li

    IPC分类号: G10L19/025 G10L19/22

    摘要: A data decoding method and device as well as an intelligent cipher key token are provided. The data decoding method includes: receiving a sinusoidal wave via an audio interface, wherein the sinusoidal wave has a waveform with at least one period, and different periods represent different bit values; processing the sinusoidal wave so as to obtain a first square wave, wherein the first square wave carries data to be decoded; determining whether there is a glitch waveform in the first square wave, based on a preset threshold or based on an adaptive threshold, wherein the adaptive threshold is calculated according to synchronization head data carried in the sinusoidal wave; if there is a glitch waveform in the first square wave, eliminating the glitch waveform from the first square wave so as to obtain a second square wave; and decoding the second square wave so as to obtain decoded data.

    Adaptive method and device of audio interface and electronic signature token

    公开(公告)号:US09615168B2

    公开(公告)日:2017-04-04

    申请号:US14407700

    申请日:2013-06-14

    发明人: Dongsheng Li

    IPC分类号: H04R3/00 H04R5/04

    CPC分类号: H04R3/00 H04R5/04 H04R2420/05

    摘要: An adaptive method and device of an audio interface and an electronic signature token are provided. The audio interface comprises a first pin and a second pin, and the method comprises: not implementing an identification operation on the first pin and the second pin of the audio interface when an absolute value of a voltage difference between the first pin and the second pin is less than a first threshold; determining a type of each of the first pin and the second pin according to a sign of the voltage difference between the first pin and the second pin when the absolute value of the voltage difference is greater than or equal to a second threshold, in which the second threshold is greater than or equal to the first threshold; and connecting the identified ground pin to a common ground.

    SECURE DATA INTERACTION METHOD AND SYSTEM
    38.
    发明申请
    SECURE DATA INTERACTION METHOD AND SYSTEM 有权
    安全数据交互方法和系统

    公开(公告)号:US20170064554A1

    公开(公告)日:2017-03-02

    申请号:US15306675

    申请日:2015-01-30

    发明人: Dongsheng LI

    IPC分类号: H04W12/06 G06Q20/40 H04L9/32

    摘要: Provided are a secure data interaction method and system, the method comprising: a terminal scans an intelligent cryptographic device within signal coverage, and acquires the identifier information of the scanned intelligent cryptographic device; the terminal and a background system server authenticate each other, and/or the terminal and the intelligent cryptographic device authenticate each other; the terminal acquires user information corresponding to the intelligent cryptographic device according to the identifier information of the scanned intelligent cryptographic device; and the terminal stores the user information in a pre-established current user list. Thus, the present invention constructs a method system of mutually authenticating the background system server, the terminal and the intelligent cryptographic device, and establishes security channels there between to prevent phishing risks and transaction risks such as transaction information tampering, remote hijacking and middle-man attacks, thus effectively ensuring fund security of a user possessing the intelligent cryptographic device and a merchant possessing the terminal.

    摘要翻译: 提供了一种安全数据交互方法和系统,所述方法包括:终端在信号覆盖范围内扫描智能密码装置,并获取所扫描的智能密码装置的标识信息; 终端和后台系统服务器彼此认证,和/或终端和智能密码设备相互认证; 终端根据扫描的智能密码装置的标识信息获取对应智能密码装置的用户信息; 并且终端将用户信息存储在预先建立的当前用户列表中。 因此,本发明构建了对背景系统服务器,终端和智能加密设备进行相互认证的方法系统,并且在其间建立安全通道,以防止钓鱼风险和交易信息篡改,远程劫持和中间人的交易风险 从而有效地确保拥有智能密码设备的用户和拥有终端的商家的资金安全。

    Method and system for processing operation request
    39.
    发明授权
    Method and system for processing operation request 有权
    处理操作请求的方法和系统

    公开(公告)号:US09438586B2

    公开(公告)日:2016-09-06

    申请号:US14781354

    申请日:2014-04-01

    发明人: Dongsheng Li

    摘要: A method for processing an operation request includes: detecting by a terminal an operation request, and sending an operation request message to a smart card; receiving by the smart card the operation request message, storing by the smart card the operation request message, generating by the smart card a joint password, generating a signature message, sending by the smart card at least the signature message to the terminal; outputting by the smart card a prompt message about the joint password, if the smart card detects that the smart card is disconnected from the terminal after the terminal obtains the signature message; receiving by the terminal the joint password, using the joint password as a password to be verified, notifying a verification device by the terminal to verify the signature message, and triggering by the verification device a procedure responding to the operation request if the signature message is successfully verified.

    摘要翻译: 一种处理操作请求的方法包括:由终端检测操作请求,并向智能卡发送操作请求消息; 由智能卡接收操作请求消息,由智能卡存储操作请求消息,由智能卡生成联合密码,生成签名消息,至少由智能卡发送签名消息给终端; 如果在终端获得签名消息后智能卡检测到智能卡与终端断开连接,则由智能卡输出关于联合密码的提示消息; 由终端接收联合密码,使用联合密码作为要验证的密码,通知终端验证设备来验证签名消息,并且如果签名消息是通过验证设备触发响应于操作请求的过程 成功验证。

    Audio interface self-adaptation device
    40.
    发明授权
    Audio interface self-adaptation device 有权
    音频接口自适应设备

    公开(公告)号:US09407987B2

    公开(公告)日:2016-08-02

    申请号:US14407529

    申请日:2013-06-14

    发明人: Dongsheng Li

    IPC分类号: H04R3/00 H04R5/04

    摘要: An audio interface self-adaption device includes an audio interface, a first level comparison module, a second level comparison module, a PNP triode Tc, a power output terminal VBAT, a switching module, a resistor R2a, and a resistor R2b. The audio interface includes a pin 1, a pin 2, a pin 3, and a pin 4. One of the pin 3 and the pin 4 is a microphone pin of the audio interface, and the other one of the pin 3 and the pin 4 is a ground pin. The switching module is configured to connect one of a first input pin B0L and a second input pin B1H of the switching module to an output pin of the switching module according to a level of a signal received by a signal input pin Sel of the switching module.

    摘要翻译: 音频接口自适应装置包括音频接口,第一电平比较模块,第二电平比较模块,PNP三极管Tc,功率输出端子VBAT,开关模块,电阻器R2a和电阻器R2b。 音频接口包括一个引脚1,一个引脚2,一个引脚3和一个引脚4.引脚3和引脚4之一是音频接口的麦克风引脚,另一个引脚3和引脚 4是接地引脚。 开关模块被配置为根据由开关模块的信号输入引脚Sel接收的信号的电平将开关模块的第一输入引脚B0L和第二输入引脚B1H之一连接到开关模块的输出引脚 。