公开(公告)号：US07187366B2

公开(公告)日：2007-03-06

申请号：US10414775

申请日：2003-04-14

Applicant: Chih-Cheng Chen

Inventor： Chih-Cheng Chen

IPC: G09G5/00

CPC classification number: G06F3/046

Abstract: A coordinate detection input system includes two first elongated electric conductors with an insulation grounding device respectively, a control circuit and two elongated electric conductors with another insulation grounding device respectively. The two elongated electric conductors are disposed correspond to X-coordinate and Y-coordinate of the input system. The control circuit further includes a microprocessor, a field induced voltage transducer, an analog/digital converter and a signal transmission device. The elongated electric conductors are electrically connected to the microprocessor to induce electromagnetic fields sequentially every time after a zero checking has been done by the microprocessor. The field induced voltage transducer induces voltage in the magnetic field once the pulse current is operated to pass through any one of the electric conductors. The analog/digital converter transforms the induced voltages as coordinates and position of the field induced voltage transducer can be figured out accordingly.

Abstract translation: 坐标检测输入系统包括分别具有绝缘接地装置的两个第一细长电导体，分别具有另一绝缘接地装置的控制电路和两个细长电导体。 两根细长的电导体对应于输入系统的X坐标和Y坐标。 控制电路还包括微处理器，场感应电压变换器，模拟/数字转换器和信号传输装置。 细长的电导体与微处理器电连接以在微处理器进行零检查之后每次都依次诱导电磁场。 一旦脉冲电流被操作通过任何一个电导体，场感应电压传感器就会在磁场中感应出电压。 模拟/数字转换器转换感应电压，因此可以相应地计算出场感应电压换能器的坐标和位置。

公开(公告)号：US07161417B2

公开(公告)日：2007-01-09

申请号：US11034739

申请日：2005-01-14

Applicant: Tse-Hsiang Hsu ,  Chih-Cheng Chen

Inventor： Tse-Hsiang Hsu ,  Chih-Cheng Chen

IPC: H03K5/00

CPC classification number: H03L7/093

Abstract: A loop filter and a method for adjusting its compensating current to make a control voltage of the loop filter more stable. The loop filter includes a charge/discharge path for receiving a control current and constituted by a first resister and a capacitor, a second resistor connected to the first terminal of the first resistor, an OP amplifier having an output terminal connected to the second resistor, a first input terminal connected to the capacitor, and a second input terminal, and a compensating unit connected to the output and second terminals of the second resistor. The loop filter further comprises a current source to provide a compensating current to the compensating unit. The loop filter utilizes the compensating unit to compensate the offset between the two input terminals of the amplifier. Therefore, the loop current of the OP amplifier can be reduced or eliminated.

Abstract translation: 一种环路滤波器和一种用于调整其补偿电流以使环路滤波器的控制电压更稳定的方法。 环路滤波器包括用于接收控制电流并由第一电阻器和电容器构成的充电/放电路径，连接到第一电阻器的第一端子的第二电阻器，具有连接到第二电阻器的输出端子的OP放大器， 连接到电容器的第一输入端子和第二输入端子，以及连接到第二电阻器的输出端子和第二端子的补偿单元。 环路滤波器还包括电流源以向补偿单元提供补偿电流。 环路滤波器利用补偿单元来补偿放大器的两个输入端之间的偏移。 因此，可以减少或消除OP放大器的回路电流。

公开(公告)号：US20060133250A1

公开(公告)日：2006-06-22

申请号：US11349936

申请日：2006-02-09

Applicant: Chia-Hua Chou ,  Chih-Cheng Chen

Inventor： Chia-Hua Chou ,  Chih-Cheng Chen

IPC: G11B5/09

CPC classification number: G11B7/1267

Abstract: The present invention is described for compensating a signal which is transmitted by a transmitting module of the optical disk drive controller through a signal channel and received and reshaped by a receiving module of the optical pickup head to calibrate the duty cycle distortion occurred. The claimed method has the steps of providing a periodic test signal, and then delaying the periodic test signal to form an adjusted test signal and adjusting a delay of an edge between the periodic test signal and the adjusted test signal instructed by a calibration signal. Afterward, the method further has the steps of transmitting the adjusted test signal to the receiving module through the signal channel, and receiving and reshaping the adjusted test signal to form a received signal, and then generating a monitor signal, finally, the method has a step of generating the calibration signal in accordance with the monitor signal.

Abstract translation: 描述了本发明，用于补偿由光盘驱动器控制器的发送模块通过信号通道发送的信号，并由光学拾取头的接收模块接收和重新整形，以校准发生的占空比失真。 要求保护的方法具有提供周期性测试信号，然后延迟周期性测试信号以形成调整的测试信号，并且调整周期性测试信号与由校准信号指示的经调整的测试信号之间的边缘的延迟。 此后，该方法还具有通过信号通道将调整后的测试信号发送到接收模块的步骤，并且接收和重新调整经调整的测试信号以形成接收信号，然后产生监视信号，最后该方法具有 根据监视信号产生校准信号的步骤。

公开(公告)号：US20050121833A1

公开(公告)日：2005-06-09

申请号：US10729926

申请日：2003-12-09

Applicant: Jenn-Shing Wang ,  Wen-Hao Lin ,  Chih-Cheng Chen

Inventor： Jenn-Shing Wang ,  Wen-Hao Lin ,  Chih-Cheng Chen

IPC: C04B33/32 ,  C04B35/638

CPC classification number: C04B35/638 ,  C04B35/62645 ,  C04B2235/6587

Abstract: A processing method for ceramic, having processing steps consisting of: (a) Manufacture pellets; (b) Cover the pellets with microwave dielectric; (c) Place the pellets into a microwave environment; (d) Microwave degreasing; (e) Complete degreasing. Procedural steps of the present invention primarily consist of placing the ceramic pellets in a container filled with microwave dielectric powder, placing the container within the microwave environment, and then regulating microwave power and time period for degreasing, whereupon the microwave dielectric powder surrounding and covering the pellets subsequently absorbs the microwaves and thereby facilitates indirect degreasing of the pellets.

Abstract translation: 一种陶瓷加工方法，具有以下加工步骤：（a）制造颗粒; （b）用微波电介质覆盖颗粒; （c）将颗粒放入微波环境中; （d）微波脱脂; （e）完全脱脂。 本发明的步骤主要包括将陶瓷颗粒放置在装有微波介电粉末的容器中，将容器放置在微波环境中，然后调节微波功率和时间段以进行脱脂，随后将微波介电粉末包围并覆盖 颗粒随后吸收微波，从而促进颗粒的间接脱脂。

公开(公告)号：US20050099215A1

公开(公告)日：2005-05-12

申请号：US11010420

申请日：2004-12-14

Applicant: Tse-Hsiang Hsu ,  Chih-Cheng Chen

Inventor： Tse-Hsiang Hsu ,  Chih-Cheng Chen

IPC: H03L7/089 ,  H03L7/18 ,  H03L7/00

CPC classification number: H03L7/0895 ,  H03L7/18

Abstract: A signal calibration apparatus of a charge pump minimizes a current from the charge pump. The signal calibration apparatus includes a detecting circuit, a current adjusting circuit, and a calibrating circuit, wherein the detecting circuit is coupled to the charge pump for outputting a detecting signal according to the direction and magnitude of the current, the current adjusting circuit is coupled to the detecting circuit for outputting a calibrating signal according to the polarity and magnitude of the slew rate of the detecting signal; and the calibrating circuit, which consists of a first calibration current source and a second calibration current source, is respectively coupled to the charge pump and the current adjusting circuit for adjusting the first current and the second current by outputting a first calibrating current and second calibrating current to the charge pump.

Abstract translation: 电荷泵的信号校准装置使来自电荷泵的电流最小化。 信号校准装置包括检测电路，电流调节电路和校准电路，其中检测电路耦合到电荷泵，用于根据电流的方向和幅度输出检测信号，电流调节电路耦合 检测电路，用于根据检测信号的转换速率的极性和大小输出校准信号; 并且由第一校准电流源和第二校准电流源组成的校准电路分别耦合到电荷泵和电流调节电路，用于通过输出第一校准电流和第二校准电流来调节第一电流和第二电流 电流到电荷泵。

公开(公告)号：US20050041565A1

公开(公告)日：2005-02-24

申请号：US10921806

申请日：2004-08-20

Applicant: Tse-Hsiang Hsu ,  Chih-Cheng Chen

Inventor： Tse-Hsiang Hsu ,  Chih-Cheng Chen

IPC: G11B5/09 ,  G11B7/00 ,  G11B7/005 ,  G11B7/09

CPC classification number: G11B7/0053 ,  G11B7/0943

Abstract: A control circuit for an optical pickup head in an optical disk drive for outputting filtered signals. The control circuit includes a laser drive unit for receiving a laser control signal to control a laser light source to generate a laser beam with a specified power, a photo detector for receiving the laser beam reflected from an optical disk and outputting a plurality of light detection signals, and a filter unit for filtering out the high frequency components of the light detection signals and then outputs the filtered signals. Since the high frequency components have been suppressed in the filtered signals, the transmission distortion can be reduced when the filtered signals are transmitted to the optical disk drive controller through a flexible cable. Accordingly, a more stable wobble signal can be obtained by the optical disk drive controller to enhance the stability of the optical disk drive operation based on the filtered signals.

Abstract translation: 一种用于输出滤波信号的用于光盘驱动器中的光学头的控制电路。 控制电路包括激光驱动单元，用于接收激光控制信号以控制激光源产生具有指定功率的激光束;光检测器，用于接收从光盘反射的激光束并输出多个光检测 信号和滤波器单元，用于滤除光检测信号的高频分量，然后输出滤波信号。 由于滤波信号中已经抑制了高频分量，所以当经过滤波的信号通过柔性电缆传输到光盘驱动器控制器时，可以减小传输失真。 因此，可以通过光盘驱动器控制器获得更稳定的摆动信号，以增强基于滤波信号的光盘驱动器操作的稳定性。

公开(公告)号：US20050025206A1

公开(公告)日：2005-02-03

申请号：US10899851

申请日：2004-07-27

Applicant: Chih-Cheng Chen

Inventor： Chih-Cheng Chen

IPC: H01S5/00 ,  H01S5/183 ,  H01S5/20 ,  H01S5/343 ,  H01S5/42

CPC classification number: B82Y20/00 ,  H01S5/18308 ,  H01S5/2072 ,  H01S5/34313 ,  H01S5/423 ,  H01S2301/166

Abstract: A single-transverse-mode VCSEL device with array structure and the fabrication method thereof. The single-transverse-mode VCSEL device with array structure comprises a plurality of light-emitting windows in a 1-D or 2-D array arrangement, and thereby provides high output power, low resistance, and a broad operating current range.

Abstract translation: 具有阵列结构的单横模VCSEL器件及其制造方法。 具有阵列结构的单横向VCSEL器件包括以1-D或2-D阵列布置的多个发光窗，从而提供高输出功率，低电阻和宽工作电流范围。

公开(公告)号：US06815987B2

公开(公告)日：2004-11-09

申请号：US10279102

申请日：2002-10-24

Applicant: Tse-Hsiang Hsu ,  Chih-Cheng Chen

Inventor： Tse-Hsiang Hsu ,  Chih-Cheng Chen

IPC: H03L706

CPC classification number: H03L7/081 ,  H03L7/0891 ,  H04L7/0337

Abstract: A phase locked loop (PLL), which has high operation speed and high resolution, and is particularly applicable in high frequency process, is disclosed. The PLL, receiving a data signal and generating a clock signal, comprises a voltage controlled oscillator (VCO) and multi-phase generator (MPG), a transition detector, an optimal phase encoder, and a phase selector, wherein the four devices are respectively used for outputting N phase clock signals of same frequency but different phases, for outputting a data period value and a clock period value by receiving the N phase clock signals, the data signal and the clock signal, for outputting a phase select signal according to the data period value and the clock period value, and for outputting one of the phase clock signals according to the phase select signal.

公开(公告)号：US06236241B1

公开(公告)日：2001-05-22

申请号：US09548032

申请日：2000-04-12

Applicant: Yu-Jen Liu ,  Chih-Cheng Chen

Inventor： Yu-Jen Liu ,  Chih-Cheng Chen

IPC: H03K19096

CPC classification number: G11C29/70

Abstract: A redundant decoder having fuse-controlled transistor comprises as follows: a bistable circuit which outputs a pair of complementary signals; a discharging device which is turned on at an evaluating cycle to form a discharging path; a precharging device which is turned on at a precharging cycle before an evaluating cycle to provide a precharging voltage; a first pair of transistors, having first terminals coupled to the precharging voltage, first gate terminals coupled to receive pair of complementary signals whose logic values decide whether the first pair of transistors are turned on or not, and second terminals; a second pair of transistors, having third terminals coupled to the second terminals of the first pair of transistors, second gate terminals coupled to receive a pair of complementary address bit signals whose logic values decide whether the second pair of transistors are turned on or not, and fourth terminals coupled to the discharging device; and a fuse device, having a fuse which is coupled to the bistable device that decides the logic values of the pair of complementary signals by whether the fuse is burnt down or not.

Abstract translation: 具有熔丝控制晶体管的冗余解码器包括如下：输出一对互补信号的双稳态电路; 放电装置，其在评价周期开启，形成放电路径; 预充电装置，其在评价周期之前以预充电周期开启，以提供预充电电压; 第一对晶体管，具有耦合到预充电电压的第一端子，第一栅极端子耦合以接收一对互补信号，其逻辑值决定第一对晶体管是否导通;以及第二端子; 第二对晶体管，具有耦合到第一对晶体管的第二端子的第三端子，第二栅极端子，被耦合以接收一对互补地址位信号，其逻辑值决定第二对晶体管是否导通， 以及耦合到所述放电装置的第四端子; 以及熔丝器件，其具有耦合到双稳态器件的熔丝，所述熔断器通过所述熔丝是否被烧坏来决定所述一对互补信号对的逻辑值。

公开(公告)号：US6166974A

公开(公告)日：2000-12-26

申请号：US429595

申请日：1999-10-28

Applicant: Chia-Yi Hsien ,  Chih-Cheng Chen ,  Hon-Shing Lau

Inventor： Chia-Yi Hsien ,  Chih-Cheng Chen ,  Hon-Shing Lau

IPC: G11C7/12 ,  G11C17/18 ,  G11C7/00

CPC classification number: G11C17/18 ,  G11C7/12

Abstract: A dynamic precharge redundant circuit for a semiconductor memory device. A PMOS transistor, a fuse, a first, second and third inverters, a first switch and a second switch are applied. A source of the PMOS transistor is coupled to a voltage supply, while a gate of the PMOS transistor is to receive a precharge signal. The fuse has a ground terminal and a terminal coupled to the drain of the PMOS transistor of which the drain is further coupled to an input terminal of the first inverter. The fuse is also coupled to a column address signal. The first inverter has an output terminal coupled to an input terminal of the first switch. The second inverter has an input terminal coupled to an output terminal of the first switch and an output terminal coupled to an input terminal of the third inverter, so as to output a bit-switch control signal. An input terminal of the second switch is coupled to an output terminal of the third inverter, while an output terminal of the second switch is coupled to both the output terminal of the first switch and the input terminal of the second inverter. Thus, an error caused by the generation of an interference signal of the bit-switch control signal is prevented, so as to prevent from damaging data of the bit line sense amplifier.

Abstract translation: 一种用于半导体存储器件的动态预充电冗余电路。 PMOS晶体管，熔丝，第一，第二和第三反相器，第一开关和第二开关被施加。 PMOS晶体管的源极耦合到电压源，而PMOS晶体管的栅极将接收预充电信号。 保险丝具有接地端子和耦合到PMOS晶体管的漏极的端子，漏极还耦合到第一反相器的输入端子。 保险丝也耦合到列地址信号。 第一反相器具有耦合到第一开关的输入端的输出端。 第二反相器具有耦合到第一开关的输出端子的输入端子和耦合到第三反相器的输入端子的输出端子，以便输出位开关控制信号。 第二开关的输入端耦合到第三反相器的输出端，而第二开关的输出端耦合到第一开关的输出端和第二反相器的输入端。 因此，防止了由位开关控制信号的干扰信号的产生引起的误差，从而防止位线读出放大器的数据损坏。