公开(公告)号：US07693011B2

公开(公告)日：2010-04-06

申请号：US11755202

申请日：2007-05-30

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

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

IPC: G11B7/00

CPC classification number: G11B20/1217 ,  G11B7/0053 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B27/24 ,  G11B2020/1238 ,  G11B2020/1239 ,  G11B2020/1268 ,  G11B2020/1269 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/2562 ,  G11B2220/2579

Abstract: The invention provides a wobble detection circuit. An exemplary embodiment of the wobble detection circuit comprises an automatic gain control module, an analog to digital converter, a digital band pass filter, and a digital band pass filter. The automatic gain control module amplifies a first input signal and a second input signal detected by a pickup head to the same magnitude to obtain a first amplified signal and a second amplified signal. The adder then subtracts the second amplified signal from the first amplified signal to obtain an analog wobble signal. The analog to digital converter then converts the analog wobble signal to a first digital wobble signal. Finally, the digital band pass filter accepts frequency components of the first digital wobble signal within a pass band and rejects frequency components of the first digital wobble signal outside the pass band to obtain a second digital wobble signal.

Abstract translation: 本发明提供一种摆动检测电路。 摆动检测电路的示例性实施例包括自动增益控制模块，模数转换器，数字带通滤波器和数字带通滤波器。 自动增益控制模块将由拾取头检测到的第一输入信号和第二输入信号放大到相同的幅度以获得第一放大信号和第二放大信号。 然后，加法器从第一放大信号中减去第二放大信号以获得模拟摆动信号。 然后，模数转换器将模拟摆动信号转换为第一数字摆动信号。 最后，数字带通滤波器接收通带内的第一数字摆动信号的频率分量，并且抑制通带外的第一数字摆动信号的频率分量，以获得第二数字摆动信号。

公开(公告)号：US07606340B2

公开(公告)日：2009-10-20

申请号：US11223064

申请日：2005-09-09

Applicant: Yuh Cheng ,  Pi-Hai Liu ,  Meng-Ta Yang

Inventor： Yuh Cheng ,  Pi-Hai Liu ,  Meng-Ta Yang

IPC: H04L7/00

CPC classification number: H04L7/0334 ,  G11B20/10194 ,  G11B20/10481 ,  H03L7/091 ,  H04L7/0337

Abstract: A phase detection device comprising an analog-digital converter, an interpolator, and a determining unit. The analog-digital converter receives an analog signal and converts the analog signal to a digital signal according to a plurality of digital sampling points. The interpolator generates a plurality of interpolation points according to a predetermined amount of digital sampling points. The determining unit obtains a phase of the ZC point according to the interpolation points or the digital sampling points.

Abstract translation: 一种相位检测装置，包括模拟数字转换器，内插器和确定单元。 模拟数字转换器接收模拟信号，并根据多个数字采样点将模拟信号转换成数字信号。 内插器根据预定量的数字采样点产生多个内插点。 确定单元根据插值点或数字采样点获得ZC点的相位。

公开(公告)号：US20070280069A1

公开(公告)日：2007-12-06

申请号：US11755186

申请日：2007-05-30

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

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

IPC: G11B20/10

CPC classification number: G11B20/10009 ,  G11B7/0053 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/1217 ,  G11B27/24 ,  G11B2020/1238 ,  G11B2020/1239 ,  G11B2020/1268 ,  G11B2020/1269 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/2562

Abstract: The invention provides an automatic gain controller processing an input signal for wobble detection circuit. An exemplary embodiment of the automatic gain controller comprises an envelope detection module, an analog to digital converter, a digital control module, a digital to analog converter, and a variable gain amplifier. The envelope detection module detects an envelope magnitude of an amplified signal. The analog to digital converter converts the envelope magnitude from analog to digital to obtain a digital envelope signal. The digital control module determines a digital gain signal for amplification of the input signal according to the digital envelope signal. The digital to analog converter converts the digital gain signal to an analog gain signal. The variable gain amplifier then amplifies the input signal according to the analog gain signal to obtain the amplified wobble signal.

Abstract translation: 本发明提供一种自动增益控制器来处理摆动检测电路的输入信号。 自动增益控制器的示例性实施例包括包络检测模块，模数转换器，数字控制模块，数模转换器和可变增益放大器。 包络检测模块检测放大信号的包络幅度。 模数转换器将包络幅度从模拟转换为数字，以获得数字包络信号。 数字控制模块根据数字包络信号确定用于放大输入信号的数字增益信号。 数模转换器将数字增益信号转换为模拟增益信号。 然后，可变增益放大器根据模拟增益信号放大输入信号，以获得放大的摆动信号。

公开(公告)号：US07263050B2

公开(公告)日：2007-08-28

申请号：US11306115

申请日：2005-12-16

Applicant: Pi-Hai Liu ,  Yuh Cheng ,  Chih-Ching Yu ,  Chih-Hsiung Chu

Inventor： Pi-Hai Liu ,  Yuh Cheng ,  Chih-Ching Yu ,  Chih-Hsiung Chu

IPC: G11B7/00

CPC classification number: G11B20/14 ,  G11B7/00456 ,  G11B7/1267 ,  G11B20/10 ,  G11B20/10194 ,  G11B20/10481 ,  G11B20/1426

Abstract: A system, for tuning a plurality of write strategy parameters of an optical storage device, includes: a run-length limited (RLL) meter for detecting a plurality of lengths, each length corresponding to a pit or a land on an optical storage medium accessed by the optical storage device; and a calculation module coupled to the RLL meter for performing calculations according to the lengths to generate a plurality of calculation results; wherein the write strategy parameters are tuned according to the calculation results.

Abstract translation: 一种用于调整光学存储设备的多个写入策略参数的系统，包括：用于检测多个长度的游程长度限制（RLL）计量器，每个长度对应于被访问的光学存储介质上的凹坑或岸台 由光存储装置; 以及耦合到所述RLL计量器的计算模块，用于根据所述长度执行计算以产生多个计算结果; 其中根据计算结果对写入策略参数进行调整。

公开(公告)号：US20070086315A1

公开(公告)日：2007-04-19

申请号：US11254026

申请日：2005-10-19

Applicant: Chao-Ming Huang ,  Yuh Cheng ,  Gwo-Huei Wu ,  Pi-hai Liu ,  Chih-Yuan Chen

Inventor： Chao-Ming Huang ,  Yuh Cheng ,  Gwo-Huei Wu ,  Pi-hai Liu ,  Chih-Yuan Chen

IPC: G11B7/00

CPC classification number: G11B20/10009 ,  H03L7/08

Abstract: Optical disc apparatuses. The apparatus comprises an optical pickup and a data recovery unit. The optical pickup irradiates laser light onto a disc, receives light reflected from the disc, and generates an RF signal in response to the received light. The data recovery unit comprises a first configuration and a second configuration. The data recovery unit receives the RF signal from the optical pickup, reproduces data according to the RF signal in the first configuration, and performs a signal quality index measurement of the RF signal in the second configuration.

Abstract translation: 光盘装置。 该装置包括光学拾取器和数据恢复单元。 光学拾取器将激光照射到盘上，接收从盘反射的光，并响应于接收的光产生RF信号。 数据恢复单元包括第一配置和第二配置。 数据恢复单元从光学拾取器接收RF信号，根据第一配置中的RF信号再现数据，并且在第二配置中执行RF信号的信号质量指标测量。

公开(公告)号：US20060239661A1

公开(公告)日：2006-10-26

申请号：US10907962

申请日：2005-04-22

Applicant: Meng-Ta Yang ,  Jin-Bin Yang ,  Yuh Cheng

Inventor： Meng-Ta Yang ,  Jin-Bin Yang ,  Yuh Cheng

IPC: H04N5/781

CPC classification number: G11B20/18 ,  G11B20/22 ,  H04N5/85

Abstract: An upper slicing level and a lower slicing level are determined to slice an RF signal into an upper sliced signal and a lower sliced signal respectively. A maximum pulse width occurs in the upper sliced signal or the lower sliced signal during a predetermined period is detected, and compared to a maximum run-length according to a clock signal. The frequency of the clock signal is adjusted according to the comparison result.

Abstract translation: 确定上切片电平和下切片电平以分别将RF信号切片成上切片信号和下切片信号。 在检测到预定时段期间，在上限信号或下限片信号中发生最大脉冲宽度，并根据时钟信号与最大游程长度进行比较。 根据比较结果调整时钟信号的频率。

公开(公告)号：US20130166924A1

公开(公告)日：2013-06-27

申请号：US13332371

申请日：2011-12-21

Applicant: Jen-Chieh Yang ,  Yuh Cheng ,  Kun-Bin Lee ,  Haw-Kuen Su

Inventor： Jen-Chieh Yang ,  Yuh Cheng ,  Kun-Bin Lee ,  Haw-Kuen Su

IPC: G06F1/26

CPC classification number: G06F1/324 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172

Abstract: A method for performing scenario driven voltage scaling of a system includes: monitoring at least one condition of the system, wherein the at least one condition includes user scenario switching of the system; and based upon at least one predetermined table, determining at least one level of at least one voltage for driving the system according to the at least one condition, where the predetermined table includes a plurality of sets of frequency/voltage information respectively corresponding to a plurality of scenarios. An associated apparatus for performing scenario driven voltage scaling of the system is also provided. The apparatus includes at least one tracking module capable of monitoring the at least one condition of the system, and further includes at least one voltage control module capable of determining the at least one level of the at least one voltage.

Abstract translation: 用于执行系统的场景驱动电压缩放的方法包括：监视所述系统的至少一个状况，其中所述至少一个条件包括所述系统的用户场景切换; 并且基于至少一个预定表，根据所述至少一个条件确定用于驱动所述系统的至少一个电压的至少一个电平，其中所述预定表包括分别对应于多个的多组频率/电压信息 的情景。 还提供了用于执行系统的场景驱动的电压缩放的相关联的设备。 该装置包括至少一个跟踪模块，该跟踪模块能够监视系统的至少一个状态，并且还包括至少一个电压控制模块，能够确定至少一个电压的至少一个电平。

公开(公告)号：US07804746B2

公开(公告)日：2010-09-28

申请号：US11077668

申请日：2005-03-11

Applicant: Gwo-Huei Wu ,  Yuh Cheng ,  Chao-Ming Huang ,  Chih-Yuan Chen ,  Ching-Ning Chiu

Inventor： Gwo-Huei Wu ,  Yuh Cheng ,  Chao-Ming Huang ,  Chih-Yuan Chen ,  Ching-Ning Chiu

IPC: G11B7/00

CPC classification number: G11B7/0903 ,  G11B7/0053 ,  G11B7/00718

Abstract: A detector is scanned across an optical storage medium having groove tracks and land tracks, each track having a wobble structure, to detect light reflected from the optical storage medium. A wobble signal and a tracking error signal are generated based on an output of the detector, and the wobble signal is sampled according to the tracking error signal. A determination about whether the detector is at the groove track or the land track is made based on the tracking error signal and a comparison of sampled values of the wobble signal.

Abstract translation: 检测器跨越具有凹槽轨道和脊迹道的光学存储介质扫描，每个轨道具有摆动结构，以检测从光学存储介质反射的光。 基于检测器的输出产生摆动信号和跟踪误差信号，并且根据跟踪误差信号对摆动信号进行采样。 基于跟踪误差信号和摆动信号的采样值的比较来确定检测器是否位于凹槽轨道或脊迹道。

公开(公告)号：US20080279075A1

公开(公告)日：2008-11-13

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 ,  G11B7/00

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：US07345964B2

公开(公告)日：2008-03-18

申请号：US11466459

申请日：2006-08-23

Applicant: Yuh Cheng

Inventor： Yuh Cheng

IPC: G11B7/00

CPC classification number: G11B7/0906 ,  G11B7/0943

Abstract: A method for deriving a tracking error signal based on a first analog detection signal and a second analog detection signal. The method includes summing the first analog detection signal and the second analog detection signal to generate an analog sum signal. An analog delay device is utilized to delay the analog sum signal to be a delay signal. The delay signal is digitalized into a digital delay signal. The first analog detection signal and the second analog detection signal are respectively transformed into a first digital detection signal and a second digital detect signal. The tracking error signal is then generated utilizing a comparing operation among the digital delay signal, the first digital detect signal, and the first digital detect signal.