Apparatus for controlling servo signal gains of an optical disc drive and method of the same
    3.
    发明授权
    Apparatus for controlling servo signal gains of an optical disc drive and method of the same 有权
    用于控制光盘驱动器的伺服信号增益的装置及其方法

    公开(公告)号:US08089834B2

    公开(公告)日:2012-01-03

    申请号:US13009668

    申请日:2011-01-19

    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。

    DEVICE, METHOD FOR PROCESSING RF SIGNAL, AND OPTICAL DISK DRIVE UTILIZING THE SAME
    4.
    发明申请
    DEVICE, METHOD FOR PROCESSING RF SIGNAL, AND OPTICAL DISK DRIVE UTILIZING THE SAME 有权
    装置,RF信号的处理方法以及利用该信号的光盘驱动器

    公开(公告)号:US20080279075A1

    公开(公告)日:2008-11-13

    申请号:US12028023

    申请日:2008-02-08

    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。

    Identifiable inkjet cartridge and method of preventing misplacing inkjet cartridge in an inkjet apparatus
    5.
    发明授权
    Identifiable inkjet cartridge and method of preventing misplacing inkjet cartridge in an inkjet apparatus 有权
    可识别的喷墨墨盒以及防止喷墨打印机中错放墨盒的方法

    公开(公告)号:US07425055B2

    公开(公告)日:2008-09-16

    申请号:US11379564

    申请日:2006-04-20

    Inventor: Chih-Ching Chen

    CPC classification number: B41J2/1752 B41J2/17503 B41J2/1753 B41J2/17546

    Abstract: An identifiable TAB for an inkjet cartridge. The identifiable tab contains a flexible substrate, a plurality of conductive traces formed on the flexible substrate, and a plurality of contacts formed on the flexible substrate and connected to the conductive traces. The contacts of the identifiable TAB are arranged into at least one identifiable area for aiding in identifying the inkjet cartridge.

    Abstract translation: 用于喷墨墨盒的可识别TAB。 可识别的片包含柔性衬底,形成在柔性衬底上的多个导电迹线以及形成在柔性衬底上并连接到导电迹线上的多个触点。 可识别TAB的触点被布置在至少一个可识别区域中,以帮助识别喷墨墨盒。

    ASYMMETRY MEASUREMENT APPARATUS
    6.
    发明申请
    ASYMMETRY MEASUREMENT APPARATUS 审中-公开
    不对称测量装置

    公开(公告)号:US20070280079A1

    公开(公告)日:2007-12-06

    申请号:US11758006

    申请日:2007-06-05

    CPC classification number: G11B20/10009 G11B2220/2537

    Abstract: An asymmetry measurement apparatus is disclosed. The asymmetry measurement apparatus is designed for detecting the recorded data reproduction waveform of an optical storage device in digital domain. The asymmetry measurement apparatus includes an Analog to Digital Converter (ADC) for converting an analog signal to a digital signal; a detection unit for detecting plurality values of the digital signal; and an asymmetry calculation unit for generating an asymmetry value of the digital signal according to the plurality values.

    Abstract translation: 公开了一种不对称测量装置。 不对称测量装置被设计用于检测数字域中的光存储装置的记录数据再现波形。 不对称测量装置包括用于将模拟信号转换为数字信号的模数转换器(ADC); 检测单元,用于检测数字信号的多个值; 以及不对称计算单元,用于根据多个值产生数字信号的不对称值。

    APPARATUS AND METHODS FOR LIGHT SPOT SERVO SIGNAL DETECTION
    7.
    发明申请
    APPARATUS AND METHODS FOR LIGHT SPOT SERVO SIGNAL DETECTION 有权
    用于轻点服务信号检测的装置和方法

    公开(公告)号:US20070280059A1

    公开(公告)日:2007-12-06

    申请号:US11757426

    申请日:2007-06-04

    Abstract: An apparatus for light spot servo signal detection for reading an optical recording medium having a plurality of non-writable areas between writable data areas containing address information. An optical pickup provides a light spot to the non-writable areas of the optical recording medium with a predetermined state according to a control signal, and detects optical reflecting signals from the optical recording medium to generate a detection signal. A signal adjusting module offsets signal levels of the detection signal to an operating range to generate an offset shifted detection signal. An analog to digital converter digitizes the offset shifted detection signal to generate a digital signal. A detection circuit detects the servo detection signal according to the digital signal.

    Abstract translation: 一种光点伺服信号检测装置,用于读取在包含地址信息的可写数据区之间具有多个不可写区域的光记录介质。 光拾取器根据控制信号以预定状态向光记录介质的不可写区域提供光点,并且检测来自光记录介质的光反射信号以产生检测信号。 信号调整模块将检测信号的信号电平偏移到工作范围以产生偏移移位的检测信号。 模数转换器对偏移检测信号进行数字化以产生数字信号。 检测电路根据数字信号检测伺服检测信号。

    AUTOMATIC POWER CONTROL SYSTEM FOR OPTICAL DISC DRIVE AND METHOD THEREOF
    8.
    发明申请
    AUTOMATIC POWER CONTROL SYSTEM FOR OPTICAL DISC DRIVE AND METHOD THEREOF 失效
    光盘驱动自动功率控制系统及其方法

    公开(公告)号:US20070279274A1

    公开(公告)日:2007-12-06

    申请号:US11758119

    申请日:2007-06-05

    Abstract: An automatic power control system, 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,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。

    Digital phase-locked loop circuit
    10.
    发明授权
    Digital phase-locked loop circuit 有权
    数字锁相环电路

    公开(公告)号:US07218176B2

    公开(公告)日:2007-05-15

    申请号:US10935863

    申请日:2004-09-08

    CPC classification number: H03L7/181 H03L7/0805 H03L7/107 H03L7/1075

    Abstract: A digital phase-locked loop circuit includes a counter for outputting a count value corresponding to an output frequency outputted by a voltage controlled oscillator in response to a control voltage signal, a comparator for comparing the count value from the counter with a target value associated with a target frequency output and for outputting a comparison signal according to a comparison result therebetween, a digital reference value generator for outputting a digital reference value according to the comparison signal from the comparator and including a register for storing the digital reference value therein, and a digital-to-analog converter for generating the control voltage signal based on the digital reference value received from the digital reference value generator.

    Abstract translation: 数字锁相环电路包括:计数器,用于响应于控制电压信号输出与压控振荡器输出的输出频率对应的计数值;比较器,用于将来自计数器的计数值与与 目标频率输出,并根据比较结果输出比较信号;数字参考值发生器,用于根据来自比较器的比较信号输出数字参考值,并包括用于存储数字参考值的寄存器,以及 数模转换器,用于基于从数字参考值发生器接收的数字参考值产生控制电压信号。

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