公开(公告)号：US20110255566A1

公开(公告)日：2011-10-20

申请号：US13166817

申请日：2011-06-23

Applicant: Hsiao-Yuan Chi ,  Chih-Ching Chen ,  Chia-Wei Liao

Inventor： Hsiao-Yuan Chi ,  Chih-Ching Chen ,  Chia-Wei Liao

IPC: H01S3/00

CPC classification number: G11B7/126

Abstract: A method for deriving precise control over laser power of an optical pickup unit (OPU) includes: providing an analog-to-digital converter (ADC) within an automatic power calibration (APC) circuit to derive a path gain and/or a path offset from the APC circuit; and selectively performing compensation according to the gain and/or the path offset, in order to maintain precision of a relationship between the laser power and a target command utilized for controlling the laser power. An associated APC circuit comprising an ADC and at least one compensation module is further provided. The ADC is utilized for deriving a path gain and/or a path offset from the APC circuit. The compensation module is utilized for selectively performing compensation according to the path gain and/or the path offset, in order to control the laser power by a target command.

Abstract translation: 用于导出对光学拾取单元（OPU）的激光功率的精确控制的方法包括：在自动功率校准（APC）电路内提供模数转换器（ADC）以导出路径增益和/或路径偏移 从APC电路; 并且根据增益和/或路径偏移选择性地执行补偿，以便保持激光功率与用于控制激光功率的目标指令之间的关系的精度。 还提供了包括ADC和至少一个补偿模块的相关APC电路。 ADC用于从APC电路导出路径增益和/或路径偏移。 补偿模块用于根据路径增益和/或路径偏移选择性地执行补偿，以便通过目标命令控制激光功率。

公开(公告)号：US08000095B2

公开(公告)日：2011-08-16

申请号：US12468613

申请日：2009-05-19

Applicant: Keng-Ping Wang ,  Chin-Chang Meng ,  Chih-Ching Chen

Inventor： Keng-Ping Wang ,  Chin-Chang Meng ,  Chih-Ching Chen

IPC: G06F1/16

CPC classification number: H04M1/0237

Abstract: The invention provides a sliding mechanism and an electronic device using the same. The sliding mechanism includes a bottom plate, a connection rod, a cover plate, an elastic member, and a connection member. Guiding sections are formed at two sides of the bottom plate, and the bottom plate has a first fastening hole and an arc-shaped groove. The connection rod has a first end and a second end. Sliding portions are formed at two sides of the cover plate to cooperate with the guiding sections to enable the cover plate to slide relative to the bottom plate, and the cover plate has a second fastening hole and a connection hole. The elastic member includes a third end and a fourth end. Furthermore, the connection member slidably fastens the fourth end of the elastic member and the second end of the connection rod to the arc-shaped groove through the connection hole.

Abstract translation: 本发明提供一种滑动机构和使用其的电子装置。 滑动机构包括底板，连接杆，盖板，弹性构件和连接构件。 引导部分形成在底板的两侧，底板具有第一紧固孔和弧形槽。 连接杆具有第一端和第二端。 滑盖部分形成在盖板的两侧，以与引导部分配合，使得盖板相对于底板滑动，并且盖板具有第二紧固孔和连接孔。 弹性构件包括第三端和第四端。 此外，连接构件通过连接孔将弹性构件的第四端和连接杆的第二端滑动地紧固到弧形槽。

公开(公告)号：US07967263B2

公开(公告)日：2011-06-28

申请号：US12426157

申请日：2009-04-17

Applicant: Keng Ping Wang ,  Chin Chang Meng ,  Chih-Ching Chen

Inventor： Keng Ping Wang ,  Chin Chang Meng ,  Chih-Ching Chen

IPC: A45D42/14

CPC classification number: F16B47/00

Abstract: A fixing device is provided. The fixing device is fixed to a surface, comprising a sucker, a rack, a gear, a transforming unit and a limiting unit. The rack is connected to the sucker. The gear is engaged to the rack. The transforming unit is connected to the gear. The transforming unit rotates the gear to move the rack between a first position and a second position. The rack pushes the sucker to apply a suction force to the surface when the rack is in the first position, and the suction force of the sucker is released when the rack is in the second position. The limiting unit is connected to the rack to restrict the rack.

Abstract translation: 提供定影装置。 固定装置固定在表面上，该表面包括吸盘，齿条，齿轮，转换单元和限制单元。 机架连接到吸盘。 齿轮与机架接合。 变压单元连接到齿轮。 变换单元旋转齿轮以在第一位置和第二位置之间移动齿条。 当机架处于第一位置时，机架推动吸盘向表面施加吸力，并且当机架处于第二位置时吸盘的吸力被释放。 限位单元连接到机架以限制机架。

公开(公告)号：US20110122747A1

公开(公告)日：2011-05-26

申请号：US13008485

申请日：2011-01-18

Applicant: Bing-Yu Hsieh ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Chih-Ching Chen ,  Chia-Wei Liao

Inventor： Bing-Yu Hsieh ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Chih-Ching Chen ,  Chia-Wei Liao

IPC: G11B20/10

CPC classification number: H03M1/1225 ,  G11B7/0903 ,  G11B7/0912 ,  G11B7/0941 ,  G11B7/1263 ,  H03M1/129

Abstract: An automatic power control system, an automatic power control method, a down sampling circuit and a down sampling method. The automatic power control system is incorporated in an optical disc drive comprising a laser diode for receiving a control signal to generate a laser beam; and a photodetector for detecting the laser beam to generate an analog input signal. The automatic power control system comprises an analog-to-digital converter, a down sampling circuit, a comparator, and a digital-to-analog converter. The analog-to-digital converter converts the analog input signal to digital data. The down sampling circuit, coupled to the analog-to-digital converter, comprises a down sampler, a counter, and a controller. The down sampler receives a predetermined amount of digital data to generate representation data. The counter, coupled to the down sampler, calculates the amount of digital data, and resets the down sampler when the amount equals or exceeds the predetermined count. The controller, coupled to the counter, disables the counter when the digital data is invalid. The comparator, coupled to the down sampling circuit, compares the representation data with predetermined target data to generate error data. The digital-to-analog converter, coupled to the comparator, converts the error data to analog to generate the control signal.

Abstract translation: 自动功率控制系统，自动功率控制方法，下采样电路和下采样方法。 自动功率控制系统结合在包括用于接收控制信号以产生激光束的激光二极管的光盘驱动器中; 以及用于检测激光束以产生模拟输入信号的光电检测器。 自动功率控制系统包括模数转换器，下采样电路，比较器和数 - 模转换器。 模数转换器将模拟输入信号转换为数字数据。 耦合到模数转换器的下采样电路包括下采样器，计数器和控制器。 下采样器接收预定量的数字数据以产生表示数据。 耦合到下采样器的计数器计算数字数据量，并且当量等于或超过预定计数时重置下采样器。 耦合到计数器的控制器在数字数据无效时禁用计数器。 耦合到下采样电路的比较器将表示数据与预定目标数据进行比较以产生误差数据。 耦合到比较器的数模转换器将误差数据转换成模拟以产生控制信号。

公开(公告)号：US20110110205A1

公开(公告)日：2011-05-12

申请号：US13009668

申请日：2011-01-19

Applicant: Chia-Wei Liao ,  Chih-Ching Chen ,  Yuh Cheng ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Chun-Yu Lin ,  Shu-Hung Chou

Inventor： Chia-Wei Liao ,  Chih-Ching Chen ,  Yuh Cheng ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Chun-Yu Lin ,  Shu-Hung Chou

IPC: G11B7/00

CPC classification number: G11B7/0941 ,  G11B7/0903

Abstract: The invention provides an apparatus for controlling servo signal gains of an optical disc drive. The apparatus adjusts the gains of a plurality of servo signals controlling a servo system of the optical disc drive when the optical disk drive encounters an operating state transition. In a first mode, at least one AGC loop of the apparatus compensates the gains of the servo signals with a selectable bandwidth during a specific period after the operating state transition to accelerate the convergence of the servo signals. In a second mode, at least one AGC loop of the apparatus reloads the previously saved convergence values or pre-determined values as the initial values according to the current operating state immediately after the operating state transition to accelerate the convergence of the servo signals.

Abstract translation: 本发明提供一种用于控制光盘驱动器的伺服信号增益的装置。 当光盘驱动器遇到操作状态转换时，该装置调节控制光盘驱动器的伺服系统的多个伺服信号的增益。 在第一模式中，该装置的至少一个AGC环路在操作状态转换之后的特定时段期间以可选择的带宽补偿伺服信号的增益，以加速伺服信号的收敛。 在第二模式中，装置的至少一个AGC环路根据紧接在运行状态转换之后的当前运行状态重新加载先前存储的收敛值或预定值作为初始值，以加速伺服信号的收敛。

公开(公告)号：US07773480B2

公开(公告)日：2010-08-10

申请号：US12028023

申请日：2008-02-08

Applicant: Chih-Chien Huang ,  Chih-Ching Chen ,  Yuh Cheng ,  Chien Ming Chen

Inventor： Chih-Chien Huang ,  Chih-Ching Chen ,  Yuh Cheng ,  Chien Ming Chen

IPC: G11B20/10

CPC classification number: G11B20/10009 ,  G11B7/005 ,  G11B20/10027 ,  G11B20/10046 ,  H03H7/0153

Abstract: A device for processing a radio frequency (RF) signal of an optical disk drive includes a high-pass (HP) filter, an RF variable gain amplifier (VGA), an RF analog-digital converter (ADC), and a digital module. The HP filter filters the RF signal and is capable of selectively utilizing one of a first cut-off frequency and a second cut-off frequency. The RF VGA amplifies the filtered RF signal. The RF ADC converts the amplified RF signal into a digital code. The digital module is capable of executing a first function and a second function with the digital code. The HP filter utilizes the first cut-off frequency when the digital module desires to execute the first function, and the HP filter utilizes the second cut-off frequency when the digital module desires to execute the second function.

Abstract translation: 用于处理光盘驱动器的射频（RF）信号的装置包括高通（HP）滤波器，RF可变增益放大器（VGA），RF模数转换器（ADC）和数字模块。 HP滤波器对RF信号进行滤波，并且能够选择性地利用第一截止频率和第二截止频率中的一个。 RF VGA放大滤波后的RF信号。 RF ADC将放大的RF信号转换为数字码。 数字模块能够利用数字代码执行第一功能和第二功能。 当数字模块希望执行第一功能时，HP滤波器利用第一截止频率，当数字模块希望执行第二功能时，HP滤波器利用第二截止频率。

公开(公告)号：US20090321602A1

公开(公告)日：2009-12-31

申请号：US12465774

申请日：2009-05-14

Applicant: Keng-Ping Wang ,  Chin-Chang Meng ,  Chih-Ching Chen

Inventor： Keng-Ping Wang ,  Chin-Chang Meng ,  Chih-Ching Chen

IPC: A47B91/00

CPC classification number: G06F1/181 ,  H05K5/0234

Abstract: A rotary supporting structure without drawing is provided. A base is designed to have a protrusion to cooperate with a locating hole of an electronic device to make the base rotate between the accommodating position coinciding with the bottom surface of the electronic device and the supporting position intersecting with the bottom surface without drawing. The tenons used in the conventional design are replaced, and thus the operation is more convenient. The base is composed of an upper lid and a lower lid, and this may overcome the thickness limitation of the conventional single plastic component and provide stable support.

Abstract translation: 提供了一种没有拉丝的旋转支撑结构。 基座被设计成具有与电子设备的定位孔配合的突起，以使基座在与电子设备的底表面重合的容纳位置与与底面相交的支撑位置之间旋转而不拉伸。 传统设计中使用的榫头被更换，因此操作更方便。 基座由上盖和下盖组成，可以克服传统单塑料部件的厚度限制，并提供稳定的支撑。

公开(公告)号：US20090296869A1

公开(公告)日：2009-12-03

申请号：US12407226

申请日：2009-03-19

Applicant: Kuan-Hua Chao ,  Shiue-Shin Liu ,  Jeng-Horng Tsai ,  Chih-Ching Chen ,  Chuan Liu ,  Tse-Hsiang Hsu

Inventor： Kuan-Hua Chao ,  Shiue-Shin Liu ,  Jeng-Horng Tsai ,  Chih-Ching Chen ,  Chuan Liu ,  Tse-Hsiang Hsu

IPC: H04L7/00 ,  H03L7/06

CPC classification number: H03L7/081 ,  H03L7/087 ,  H03L7/1974

Abstract: A clock generation circuit is provided and includes a phase locked loop (PLL) and a calibrator. The PLL is arranged to receive a first clock signal and generate the output clock signal. The PLL adjusts the frequency of the output clock signal according to a control signal. The calibrator is arranged to receive the output clock signal and a second clock signal, execute a frequency calibration between the output clock signal and the second clock signal, and generate the control signal according to results of the frequency calibration.

Abstract translation: 提供时钟发生电路并且包括锁相环（PLL）和校准器。 PLL被布置成接收第一时钟信号并产生输出时钟信号。 PLL根据控制信号调节输出时钟信号的频率。 校准器被布置成接收输出时钟信号和第二时钟信号，在输出时钟信号和第二时钟信号之间执行频率校准，并根据频率校准的结果产生控制信号。

公开(公告)号：US20090141755A1

公开(公告)日：2009-06-04

申请号：US12198879

申请日：2008-08-26

Applicant: Hsiao-Yuan Chi ,  Chih-Ching Chen ,  Chia-Wei Liao

Inventor： Hsiao-Yuan Chi ,  Chih-Ching Chen ,  Chia-Wei Liao

IPC: H01S3/13

CPC classification number: G11B7/126

Abstract: A method for controlling laser power of an optical pickup unit (OPU) includes: providing a first relationship between the laser power and a driving parameter, wherein the driving parameter is utilized for driving a laser diode (LD) of the OPU, and the first relationship corresponds to a first temperature; utilizing a temperature-related model to convert the first relationship into a second relationship between the laser power and the driving parameter, wherein the second relationship corresponds to a second temperature; and storing the first relationship for being utilized at the first temperature, and storing the second relationship for being utilized at the second temperature.

Abstract translation: 一种用于控制光学拾取单元（OPU）的激光功率的方法包括：提供激光功率和驱动参数之间的第一关系，其中驱动参数用于驱动OPU的激光二极管（LD），第一 关系对应于第一温度; 利用温度相关模型将第一关系转换成激光功率和驱动参数之间的第二关系，其中第二关系对应于第二温度; 并存储在第一温度下被利用的第一关系，并且存储在第二温度下被利用的第二关系。

公开(公告)号：US20080005491A1

公开(公告)日：2008-01-03

申请号：US11625349

申请日：2007-01-22

Applicant: Chih-Ching Chen ,  Li-Chun Tu

Inventor： Chih-Ching Chen ,  Li-Chun Tu

IPC: G06F13/00 ,  G06F12/00

CPC classification number: G06F12/0284

Abstract: A memory sharing method for at least a functional module and a target module is disclosed. The functional module includes at least a static random access memory (SRAM), the memory sharing method includes the steps of calculating a memory capacity of the functional module; if a total memory capacity of a module group satisfies a memory capacity requirement of the target module, allocating the SRAM of the module group, wherein the module group comprises at least one functional module; and accessing the SRAM of the functional module of the module group by utilizing the target module.

Abstract translation: 公开了用于至少功能模块和目标模块的存储器共享方法。 所述功能模块至少包括静态随机存取存储器（SRAM），所述存储器共享方法包括计算所述功能模块的存储器容量的步骤; 如果模块组的总存储器容量满足目标模块的存储器容量要求，则分配模块组的SRAM，其中模块组包括至少一个功能模块; 并通过利用目标模块访问模块组的功能模块的SRAM。