Light control signal generating circuit
    61.
    发明授权
    Light control signal generating circuit 有权
    光控制信号发生电路

    公开(公告)号:US08471478B2

    公开(公告)日:2013-06-25

    申请号:US13095927

    申请日:2011-04-28

    IPC分类号: H05B37/02

    摘要: A light control signal generating circuit includes a photosensitive element, two transistors, and four resistances. A first resistance and the photosensitive element are connected in series between a power voltage terminal and a ground terminal. A base electrode of a first transistor is connected to a node between the first resistance and the photosensitive element, a collecting electrode is connected to the power voltage terminal through a second resistance, and an emitting electrode is connected to the ground terminal through a third resistance. A base electrode of a second transistor is connected to a node between the second resistance and the first transistor, a collecting electrode is connected to the power voltage terminal through a fourth resistance, and an emitting electrode is connected to the ground terminal through the third resistance. An output terminal is formed from a node between the fourth resistance and the second transistor.

    摘要翻译: 光控制信号发生电路包括光敏元件,两个晶体管和四个电阻。 第一电阻和感光元件串联连接在电源电压端子和接地端子之间。 第一晶体管的基极连接到第一电阻和感光元件之间的节点,集电极通过第二电阻连接到电源电压端子,并且发射电极通过第三电阻连接到接地端子 。 第二晶体管的基极连接到第二电阻和第一晶体管之间的节点,集电极通过第四电阻连接到电源电压端子,并且发射电极通过第三电阻连接到接地端子 。 输出端由第四电阻和第二晶体管之间的节点形成。

    Digital communication system
    62.
    发明授权
    Digital communication system 有权
    数字通讯系统

    公开(公告)号:US08897379B2

    公开(公告)日:2014-11-25

    申请号:US13563824

    申请日:2012-08-01

    IPC分类号: H04B3/00 H04L25/02

    CPC分类号: H04L25/028

    摘要: A digital communication system comprising a host and a client, the host calls the client via two transmission lines. The host includes a processor, a first control unit, a second control unit, a high frequency transformer and an interface unit. The digital communication system utilizes the first control unit and the high frequency transformer to modulate outgoing signals. The digital communication system utilizes the second unit and the high frequency transformer to demodulate incoming signals.

    摘要翻译: 一种包括主机和客户机的数字通信系统,主机经由两条传输线路呼叫客户机。 主机包括处理器,第一控制单元,第二控制单元,高频变压器和接口单元。 数字通信系统利用第一控制单元和高频变压器来调制输出信号。 数字通信系统利用第二单元和高频变压器来解调输入信号。

    Scanning circuit and scanning method for keyboard
    63.
    发明授权
    Scanning circuit and scanning method for keyboard 有权
    键盘扫描电路及扫描方式

    公开(公告)号:US08248276B2

    公开(公告)日:2012-08-21

    申请号:US12817188

    申请日:2010-06-17

    IPC分类号: H03K17/94

    CPC分类号: G06F3/023 H03M11/20

    摘要: A scanning circuit includes n rows L1˜Ln, 2n columns P1-1˜P1-n and P2-1˜P2-n, and the n rows L1˜Ln and the n columns P1-1˜P1-n cooperatively form a switch matrix comprising n*n switches S1-1˜Sn-n, with ends of the switches in the same row electrically connected to one of n I/O ports K1˜Kn, respectively, the ends of the switches in the same column are electrically connected to ground via one resistor R1-1˜R1-n, respectively, each of resistors R2-1˜R2-n is electronically connected in one column of the columns P2-1˜P2-n, and connected between one of the I/O ports K1˜Kn and ground via one of the resistors R1-1˜R1-n, respectively. A keyboard and a scanning method are also provided.

    摘要翻译: 扫描电路包括n行L1〜Ln,2n列P1-1〜P1-n和P2-1〜P2-n,n行L1〜Ln和n列P1-1〜P1-n协同地形成开关 矩阵,其包括n * n个开关S1-1〜Sn-n,同一行中的开关的端部分别电连接到n个I / O端口K1〜Kn中的一个,同一列中的开关的端部是电 通过一个电阻器R1-1〜R1-n分别连接到地,每个电阻器R2-1〜R2-n电连接在列P2-1〜P2-n的一列中,并连接在I / O端口K1〜Kn分别通过电阻R1-1〜R1-n之一接地。 还提供了键盘和扫描方法。

    Audio output controller and control method
    64.
    发明授权
    Audio output controller and control method 有权
    音频输出控制器和控制方式

    公开(公告)号:US08983086B2

    公开(公告)日:2015-03-17

    申请号:US13334102

    申请日:2011-12-22

    IPC分类号: H04R1/10 H04R5/04 H04R5/033

    摘要: An output controller and an method for outputting a signal flow to one or more earphone jacks according to a connection status of each earphone jack. The output controller includes an interface unit having more than one earphone jacks and an output control unit. The output control unit includes a signal input terminal for receiving a signal flow, a detector, and a determining module. The detector detects whether each earphone jack is connected with an earphone and outputs one or more detected signals representing the connection status of the earphone jacks. The determining module outputs the signal flow directly to the connected earphone jack if only one earphone jack is connected to the earphone or distributes the signal flow being amplified correspondingly into each connected earphone jack if more than one earphone jack is connected to the earphones.

    摘要翻译: 一种输出控制器和根据每个耳机插孔的连接状态将信号流输出到一个或多个耳机插孔的方法。 输出控制器包括具有多于一个耳机插孔和输出控制单元的接口单元。 输出控制单元包括用于接收信号流的信号输入端子,检测器和确定模块。 检测器检测每个耳机插孔是否与耳机连接,并且输出表示耳机插孔的连接状态的一个或多个检测信号。 如果只有一个耳机插孔连接到耳机,确定模块将信号流直接输出到连接的耳机插孔,或者如果多于一个的耳机插孔连接到耳机,则将信号流相应地放大到每个连接的耳机插孔中。

    Scanning circuit and scanning method for keyboard
    65.
    发明授权
    Scanning circuit and scanning method for keyboard 有权
    键盘扫描电路及扫描方式

    公开(公告)号:US08258985B2

    公开(公告)日:2012-09-04

    申请号:US12780946

    申请日:2010-05-17

    IPC分类号: H03M11/00

    CPC分类号: G06F3/0202 H03M11/20

    摘要: A scanning circuit includes n input ports K1˜Kn arranged in n rows L1˜Ln; and m−2 output ports W2˜(m−1) arranged in m columns P1˜Pm. The n rows and the m columns define a switch matrix including n*m switches. Ends of the switches in the same row are connected to one of the n input ports K1˜Kn, respectively. The ends of the switches in the column P1 are connected to ground. The ends of the switches in the same column of the columns P2˜P(m−1) are connected to a power supply VCC via resistors R2˜R(m−1) and the m−2 output ports W2˜W(m−1), respectively. The ends of the switches in the columns Pm are connected to ground via a resistor Rs and the power supply VCC via the resistors R2˜R(m−1) and diodes D2˜D(m−1), respectively.

    摘要翻译: 扫描电路包括以n行L1〜Ln排列的n个输入端口K1〜Kn, 和布置在m列P1〜Pm中的m-2个输出端口W2〜(m-1)。 n行和m列定义了包括n * m个开关的开关矩阵。 相同行中的开关的端部分别连接到n个输入端口K1〜Kn中的一个。 列P1中的开关的端部连接到地。 列P2〜P(m-1)的同一列中的开关的端部经由电阻器R2〜R(m-1)和m-2输出端口W2〜W(m- 1)。 列Pm中的开关的端部经由电阻器Rs和电源VCC经由电阻器R2〜R(m-1)和二极管D2〜D(m-1)分别连接到地。

    Audio signal amplifying circuit
    66.
    发明授权
    Audio signal amplifying circuit 有权
    音频信号放大电路

    公开(公告)号:US08600081B2

    公开(公告)日:2013-12-03

    申请号:US13106807

    申请日:2011-05-12

    IPC分类号: H03F99/00

    摘要: The present disclosure provides an audio signal amplifying circuit for an electronic device including a processing chip and a speaker. The audio signal amplifying circuit includes an amplifying circuit and an inverting circuit connected to the processing chip to get a first control signal and invert the first control signal to generate a second control signal. The first control signal and/or the second control signal are used to control the operation mode of the amplifying circuit to be in an amplifying mode or in a non-amplifying mode.

    摘要翻译: 本公开提供了一种用于包括处理芯片和扬声器的电子设备的音频信号放大电路。 音频信号放大电路包括放大电路和反相电路,连接到处理芯片以获得第一控制信号,并且反转第一控制信号以产生第二控制信号。 第一控制信号和/或第二控制信号用于将放大电路的工作模式控制为放大模式或非放大模式。

    Portable electronic device with hidden keyboard
    67.
    发明申请
    Portable electronic device with hidden keyboard 有权
    带隐藏键盘的便携式电子设备

    公开(公告)号:US20050105256A1

    公开(公告)日:2005-05-19

    申请号:US10849161

    申请日:2004-05-20

    申请人: Tsung-Jen Chuang

    发明人: Tsung-Jen Chuang

    IPC分类号: G06F1/16 G06F3/023 G06F15/02

    摘要: A portable electronic device with a hidden keyboard has a portable electronic device body, a keyboard body and a pair of pivotal shafts. The portable electronic device body has an indentation portion formed in a rear thereof and a pair of pivotal holes formed thereon near a lower end of the indentation portion. The keyboard body has two keyboard half portions separate from each other. The pivotal shafts are connected between the pivotal holes of the indentation portion and inner upper corner positions of the keyboard half portions, respectively.

    摘要翻译: 具有隐藏键盘的便携式电子设备具有便携式电子设备主体,键盘主体和一对枢轴。 便携式电子设备主体具有形成在其后部的凹口部分和在凹口部分的下端附近形成的一对枢转孔。 键盘主体有两个彼此分开的键盘半部分。 枢转轴分别连接在凹口部分的枢转孔和键盘半部分的内部上部拐角位置之间。

    Audio playing device having earphone jack with rotation detector
    68.
    发明授权
    Audio playing device having earphone jack with rotation detector 有权
    具有旋转探测器的耳机插孔的音频播放装置

    公开(公告)号:US08983087B2

    公开(公告)日:2015-03-17

    申请号:US13485796

    申请日:2012-05-31

    IPC分类号: H04R1/10 H04R3/00

    摘要: An audio playing device may operate in a first mode or a second mode. The audio playing device includes a speaker, an earphone jack receiving an earphone plug of an earphone, a sound output driver, a rotation angle detector, and a processor. The sound output driver only drives the speaker when the audio playing device operates in the first mode and only drives the earphone when the audio playing device operates in the second mode. The rotation angle detector generates a first mode change signal when the earphone plug is rotated in the earphone jack along a first direction over a predetermined angle. The processor changes operation of the audio playing device between the first mode and the second mode when the processor receives the first mode change signal from the rotation angle detector.

    摘要翻译: 音频播放设备可以以第一模式或第二模式操作。 音频播放装置包括扬声器,接收耳机的耳机插头的耳机插孔,声音输出驱动器,旋转角度检测器和处理器。 当音频播放设备在第一模式下操作时,声音输出驱动器仅驱动扬声器,并且当音频播放设备在第二模式下操作时,仅驱动耳机。 当耳机插头沿着第一方向在耳机插孔中旋转预定角度时,旋转角度检测器产生第一模式改变信号。 当处理器从旋转角度检测器接收到第一模式改变信号时,处理器在第一模式和第二模式之间改变音频播放装置的操作。

    Electronic apparatus with stand mechanism for magnification function
    69.
    发明授权
    Electronic apparatus with stand mechanism for magnification function 有权
    具有放大功能支架机构的电子设备

    公开(公告)号:US08605214B2

    公开(公告)日:2013-12-10

    申请号:US13335959

    申请日:2011-12-23

    申请人: Tsung-Jen Chuang

    发明人: Tsung-Jen Chuang

    IPC分类号: H04N5/225

    CPC分类号: H04N5/2254 H04N5/23296

    摘要: An exemplary electronic apparatus includes a portable electronic device and a stand mechanism for supporting the portable device. The portable electronic device includes a display panel and a digital camera. The display panel and the digital camera are respectively disposed at a viewing surface and a bottom surface at opposite sides thereof. When the stand mechanism is in use, the digital camera has a predetermined height above a bottom of the stand mechanism.

    摘要翻译: 示例性电子设备包括便携式电子设备和用于支撑便携式设备的支架机构。 便携式电子设备包括显示面板和数字照相机。 显示面板和数码相机分别设置在其相对侧的观察面和底面。 当使用支架机构时,数码相机在支架机构的底部上方具有预定的高度。

    System for testing accuracy of electronic compass
    70.
    发明授权
    System for testing accuracy of electronic compass 有权
    电子罗盘测试系统

    公开(公告)号:US07987606B2

    公开(公告)日:2011-08-02

    申请号:US12534882

    申请日:2009-08-04

    申请人: Tsung-Jen Chuang

    发明人: Tsung-Jen Chuang

    IPC分类号: G01C17/38

    CPC分类号: G01C17/38

    摘要: A system for testing the accuracy of an electronic compass is disclosed. The system includes a circular track, a compass seat, an electromagnetic element, a driver, a power source, a calculator, and a magnetic shielding chamber. The electromagnetic element is disposed on the circular track and powered by the power source to generate a magnetic field. The electronic compass is installed on the compass seat and surrounded by the circular track. As such, the electronic compass can measure the magnetic field of the electromagnetic element and calculate direction relative to the electromagnetic element at different points of the circular track when the electromagnetic element is driven by the driver to move along the circular track. The magnetic shielding chamber is for shielding the electromagnetic element and the electronic compass from interference of external magnetic fields.

    摘要翻译: 公开了一种用于测试电子罗盘精度的系统。 该系统包括圆形轨道,罗盘座,电磁元件,驱动器,电源,计算器和磁屏蔽室。 电磁元件设置在圆形轨道上并由电源供电以产生磁场。 电子罗盘安装在指南针座上,被圆形轨道包围。 因此,当电磁元件被驱动器驱动以沿着圆形轨道移动时,电子罗盘可以测量电磁元件的磁场并计算相对于圆形轨道的不同点处的电磁元件的方向。 磁屏蔽室用于屏蔽电磁元件和电子罗盘免受外部磁场的干扰。