AUDIO SYSTEM AND RELATED METHOD INTEGRATED WITH ULTRASOUND COMMUNICATION FUNCTIONALITY
    11.
    发明申请
    AUDIO SYSTEM AND RELATED METHOD INTEGRATED WITH ULTRASOUND COMMUNICATION FUNCTIONALITY 有权
    音频系统和相关方法与超声波通信功能集成

    公开(公告)号:US20080165622A1

    公开(公告)日:2008-07-10

    申请号:US11965584

    申请日:2007-12-27

    CPC classification number: H04B11/00

    Abstract: Audio system and related method integrated with ultrasound communication functionality are provided. A communication transmitting device of proposed invention modulates a communication signal of communication functionality to a high-frequency sound and transmits the high-frequency sound by an ordinary audio transmitter. A communication receiving device of proposed invention receives the high-frequency sound with an ordinary audio receiver and demodulates it to retrieve the communication signal, and then the communication device can use the communication signal. The proposed audio sound transmitter/receiver can be implemented using low-cost audio speaker/microphone, such that a cost for implementing communication functionality can be reduced.

    Abstract translation: 提供了与超声波通信功能集成的音频系统和相关方法。 所提出的发明的通信发送装置将通信功能的通信信号调制为高频声音,并由普通音频发送器发送高频声音。 所提出的发明的通信接收装置利用普通的音频接收机接收高频声音并进行解调以取回通信信号,然后通信装置可以使用通信信号。 所提出的音频发送器/接收器可以使用低成本音频扬声器/麦克风来实现,从而可以降低用于实现通信功能的成本。

    Interactive music tag system and interactive method thereof

    公开(公告)号:US10911870B2

    公开(公告)日:2021-02-02

    申请号:US16812968

    申请日:2020-03-09

    Inventor: Li Sheng Lo

    Abstract: An interactive music tag system and an interactive method thereof are provided in the present invention. The interactive method is adapted for an interactive music tag and an interactive music tag reader. The method includes: when the interactive music tag is close to the interactive music tag reader, outputting an wireless energy to the interactive music tag and outputting an audio envelop signal to the coil of an LC resonant circuit such that the analog audio signal is transmitted to the interactive music tag; when the interactive music tag reader controls the interactive music tag, modulating a control signal into the wireless energy; when the interactive music tag receives the control signal through the LC resonant circuit, controlling the output status of the audio envelop signal according to the control signal.

    System for identifying paired ID cards

    公开(公告)号:US09740277B2

    公开(公告)日:2017-08-22

    申请号:US14844766

    申请日:2015-09-03

    Inventor: Li Sheng Lo

    CPC classification number: G06F3/00 G06K7/08 G06K19/067

    Abstract: A system for identifying ID (identity) and an ID card using the same are provided in the present invention. The ID card includes a card case, a first conducting electrode and a plurality of second conducting electrodes. The first conducting electrode and the second conducting electrodes are disposed in the card case. At least a specific second conducting electrode is electrically connected to the first conducting electrode to represent a specific ID. A card reader for reading the ID card includes a transmitting unit, a plurality of receiving units and a control circuit. The transmitting unit is disposed at the position corresponding to the first conducting electrode, and the receiving units are disposed at the position corresponding to the second conducting electrodes when the ID card is disposed on the card reader. The control circuit is coupled to the transmitting unit and the receiving units. When the ID card is close to the card reader, the transmitting unit transmits a wireless signal. The control circuit determines the ID of the ID card according to the receiving unit(s) which receive(s) the wireless signal.

    Wireless charging circuit and abnormal state protection circuit thereof
    15.
    发明授权
    Wireless charging circuit and abnormal state protection circuit thereof 有权
    无线充电电路及其异常状态保护电路

    公开(公告)号:US09362763B2

    公开(公告)日:2016-06-07

    申请号:US14322111

    申请日:2014-07-02

    CPC classification number: H02J7/0036 H02J7/0047 H02J7/0068 H02J7/025 H02J50/12

    Abstract: A wireless charging circuit and an abnormal state protection circuit thereof is provided in the present invention. The wireless charging circuit includes a power converter, a resonant circuit and an abnormal state protection circuit. The power converter receives an input voltage for outputting a PWM (pulse width modulation) signal. The input terminal of the resonant circuit receives the PWM signal. The common voltage terminal of the resonant circuit is coupled to a common voltage. The abnormal state protection circuit includes a DC sampling circuit and a control circuit. The DC sampling circuit is coupled to the resonant terminal of the resonant circuit for sampling the DC component of the voltage of the resonant terminal to obtain a DC voltage. The control circuit is coupled to the power converter and the DC sampling circuit for receiving the DC voltage. When the DC voltage is greater than a threshold voltage, the control circuit controls the power converter to reduce the current flowing through the resonant circuit.

    Abstract translation: 本发明提供一种无线充电电路及其异常状态保护电路。 无线充电电路包括功率转换器,谐振电路和异常状态保护电路。 功率转换器接收用于输出PWM(脉宽调制)信号的输入电压。 谐振电路的输入端接收PWM信号。 谐振电路的公共电压端子耦合到公共电压。 异常状态保护电路包括直流取样电路和控制电路。 DC采样电路耦合到谐振电路的谐振端子,用于对谐振端子的电压的DC分量进行采样以获得DC电压。 控制电路耦合到功率转换器和DC采样电路,用于接收直流电压。 当DC电压大于阈值电压时,控制电路控制功率转换器以减少流过谐振电路的电流。

    Bluetooth data/control message transmission module, interaction system and method thereof
    16.
    发明授权
    Bluetooth data/control message transmission module, interaction system and method thereof 有权
    蓝牙数据/控制消息传输模块,交互系统及其方法

    公开(公告)号:US09112983B2

    公开(公告)日:2015-08-18

    申请号:US14147469

    申请日:2014-01-03

    CPC classification number: H04M1/6066 H04M2250/02

    Abstract: A Bluetooth data/control message transmission module, an interaction device and a method thereof are provided in the present invention. The Bluetooth data/control message transmission module connects to a mobile device with Bluetooth. The Bluetooth data/control message transmission module includes a process unit, a modulation module and a Bluetooth module. The process unit is for providing a digital data. The modulation module receives the digital data and modulates the digital data with a analog carrier signal to generate a modulation signal whose frequency is lower than 8 KHz. The Bluetooth module uses a headset profile to link with the mobile device, wherein the mobile device serves the Bluetooth module as a headset. The Bluetooth module samples the modulation signal, to serve the sampled modulation signal as a voice signal to send to the mobile device through the Bluetooth protocol.

    Abstract translation: 在本发明中提供了蓝牙数据/控制消息传输模块,交互设备及其方法。 蓝牙数据/控制消息传输模块通过蓝牙连接到移动设备。 蓝牙数据/控制消息传输模块包括处理单元,调制模块和蓝牙模块。 处理单元用于提供数字数据。 调制模块接收数字数据并用模拟载波信号调制数字数据,产生频率低于8KHz的调制信号。 蓝牙模块使用耳机配置文件与移动设备链接,其中移动设备将蓝牙模块用作耳机。 蓝牙模块对调制信号进行采样,以将采样的调制信号作为语音信号发送,通过蓝牙协议发送到移动设备。

    Power saving method in sleep mode and keyboard controller using the same
    17.
    发明授权
    Power saving method in sleep mode and keyboard controller using the same 有权
    省电方式在睡眠模式和键盘控制器使用相同

    公开(公告)号:US08368565B2

    公开(公告)日:2013-02-05

    申请号:US12729793

    申请日:2010-03-23

    CPC classification number: H03M11/20

    Abstract: The invention relates to a power saving method in a sleep mode and a keyboard controller using the same. The method is adapted for a triangular-type scan keyboard controller including a plurality of input/output (I/O) pins. The method includes the steps of: providing a first clock source and a second clock source, wherein the frequency of the second clock source is much lower than the frequency of the first clock source. In a normal mode, a scan pulse is sequentially outputted from the I/O pins according to the frequency of the first clock source. In a sleep mode, the scan pulse is sequentially outputted from the I/O pins according to the frequency of the second clock source. When a specific one of the I/O pins outputs the scan pulse, the other I/O pins are used for detecting.

    Abstract translation: 本发明涉及睡眠模式中的省电方法和使用该省电方法的键盘控制器。 该方法适用于包括多个输入/输出(I / O)引脚的三角形扫描键盘控制器。 该方法包括以下步骤:提供第一时钟源和第二时钟源,其中第二时钟源的频率远低于第一时钟源的频率。 在正常模式下,根据第一时钟源的频率从I / O引脚依次输出扫描脉冲。 在睡眠模式下,根据第二时钟源的频率,从I / O引脚依次输出扫描脉冲。 当特定的I / O引脚输出扫描脉冲时,其他I / O引脚用于检测。

    Electronic candle and electronic night lamp
    18.
    发明授权
    Electronic candle and electronic night lamp 失效
    电子蜡烛和电子夜灯

    公开(公告)号:US08368313B2

    公开(公告)日:2013-02-05

    申请号:US12362959

    申请日:2009-01-30

    CPC classification number: H05B37/029

    Abstract: The invention relates to an electronic candle and an electronic night lamp. The electronic candle includes a light-emitting diode (LED), a capacitor and a control circuit. The capacitor has a first terminal coupled to a first terminal of the LED, and a second terminal coupled to a common voltage. The control circuit has a first control terminal coupled to the first terminal of the LED, and a second control terminal coupled to a second terminal of the LED. In a detecting period, the control circuit provides a preset voltage across the first and second terminals of the LED so that the LED is reversely biased for a preset time. Then, the first control terminal of the control circuit is set to high impedance. Next, the control circuit detects a variation of a voltage of the first terminal of the capacitor with respect to time to determine whether to light up the LED.

    Abstract translation: 本发明涉及电子蜡烛和电子夜灯。 电子蜡烛包括发光二极管(LED),电容器和控制电路。 电容器具有耦合到LED的第一端子的第一端子和耦合到公共电压的第二端子。 控制电路具有耦合到LED的第一端子的第一控制端子和耦合到LED的第二端子的第二控制端子。 在检测期间,控制电路在LED的第一和第二端子之间提供预设电压,使得LED反向偏置预设时间。 然后,控制电路的第一控制端被设定为高阻抗。 接下来,控制电路相对于时间检测电容器的第一端子的电压的变化,以确定是否点亮LED。

    Information input panel using light emitted diode matrix with time-division multiplexing
    19.
    发明授权
    Information input panel using light emitted diode matrix with time-division multiplexing 有权
    信息输入面板采用发光二极管矩阵进行时分复用

    公开(公告)号:US08354998B2

    公开(公告)日:2013-01-15

    申请号:US12488122

    申请日:2009-06-19

    CPC classification number: G06F3/0412 G06F3/0386

    Abstract: The present invention relates to an information input panel using the light emitted diode (LED) matrix. The panel includes the LED matrix and a control circuit. The LED matrix includes N×M LEDs. The control circuit includes N first terminals and M second terminals, wherein the ith first terminal thereof is coupled to first terminals of the LEDs in the ith row and the jth second terminal thereof is coupled to second terminals of the LEDs in the jth column. In the kth detecting period, the control circuit detects the reverse photoelectric currents of each LED from the second terminals through the kth first terminal to determine whether LED in the kth row is lighted up or not, wherein “M”, “N”, “i”, “j”, “k” are nature numbers and 0

    Abstract translation: 本发明涉及使用发光二极管(LED)矩阵的信息输入面板。 面板包括LED矩阵和控制电路。 LED矩阵包括N×M个LED。 控制电路包括N个第一端子和M个第二端子,其中第i个第一端子连接到第i行中的LED的第一端子,并且其第j个第二端子连接到第j列中的LED的第二端子。 在第k检测周期中,控制电路从第二端子到第k个第一端子检测每个LED的反向光电流,以确定第k行中的LED是否点亮,其中M,N,i,j,k 是自然数,0

    TWO-DIMENSIONAL OPTICAL IDENTIFICATION DEVICE WTIH SAME GRAY LEVEL
    20.
    发明申请
    TWO-DIMENSIONAL OPTICAL IDENTIFICATION DEVICE WTIH SAME GRAY LEVEL 失效
    两维光学识别装置同样具有灰度级

    公开(公告)号:US20120298761A1

    公开(公告)日:2012-11-29

    申请号:US13290252

    申请日:2011-11-07

    CPC classification number: G06K19/06037

    Abstract: On a two-dimensional optical identification device with same gray level, a plurality of two-dimensional optical identification codes are arranged, each having a plurality of data blocks and an outer positioning block. Each data block has a plurality of defined patterns, and each defined pattern is located in one of virtual areas produced by equally dividing the data block. The outer positioning block has a plurality of first positioning points and a first direction identification point, and is placed at two adjacent boundaries of the plurality of data blocks for defining the positions of the plurality of data blocks. A fixed position data block is selected as a data block coding indication block for indicating the coding of the other data blocks.

    Abstract translation: 在具有相同灰度级的二维光学识别装置上,布置多个二维光学识别码,每个具有多个数据块和外部定位块。 每个数据块具有多个定义的模式,并且每个定义的模式位于通过等分数据块产生的虚拟区域之一中。 外部定位块具有多个第一定位点和第一方向识别点,并且被放置在多个数据块的两个相邻边界处,用于定义多个数据块的位置。 选择固定位置数据块作为指示其他数据块的编码的数据块编码指示块。

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