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    • 2. 发明申请
    • APPARATUS FOR DEMODULATING ADDRESS IN PRE-GROOVE SYMBOLS AND APPARATUS FOR DECODING PRE-PIT SYMBOLS
    • 用于解除预编码符号的地址的装置和解码前缀符号的装置
    • US20070280072A1
    • 2007-12-06
    • US11755237
    • 2007-05-30
    • Bing-Yu HsiehYuh ChengShu-Hung ChouJung-Feng Ho
    • Bing-Yu HsiehYuh ChengShu-Hung ChouJung-Feng Ho
    • G11B20/10
    • G11B20/1419G11B27/24G11B2020/1269
    • The invention provides an apparatus for demodulating an Address In Pre-groove (ADIP) symbol. The ADIP symbol is carried by a wobble signal of an optical disk and comprises a series of ADIP bits permuted according to one of a plurality of permutation patterns to make up the ADIP symbol. A wobble extraction module extracts the wobble signal from the optical disk. A reference wobble generator generates a reference wobble with the same frequency and phase as a fundamental frequency and phase of a positive wobble cycle of the wobble signal. A waveform difference measurement module then measures a difference between the wobble signal and the reference wobble to obtain a series of difference measurement values respectively corresponding to the ADIP bits. A pattern matching module then compares probabilities of the permutation of the ADIP bits agreeing with each of the permutation patterns according to the difference measurement values to determine the ADIP symbol.
    • 本发明提供了一种用于解调预编码地址(ADIP)符号的装置。 ADIP符号由光盘的摆动信号承载,并且包括根据多个置换模式中的一个置换的一系列ADIP位,以构成ADIP符号。 摆动提取模块从光盘中提取摆动信号。 参考摆动发生器产生与摆动信号的正摆动周期的基频和相位相同的频率和相位的参考摆动。 波形差测量模块然后测量摆动信号和参考摆动之间的差异,以获得分别对应于ADIP位的一系列差分测量值。 模式匹配模块然后根据差值测量值来比较与每个置换模式一致的ADIP位置的概率,以确定ADIP符号。
    • 3. 发明授权
    • DAC/ADC system
    • DAC / ADC系统
    • US07193547B2
    • 2007-03-20
    • US10778403
    • 2004-02-17
    • Jung-Feng HoWen-Chung Lai
    • Jung-Feng HoWen-Chung Lai
    • H03M1/66
    • H03M3/496H03M3/50
    • A DAC/ADC system for generating reference clocks for DAC/ADC by a look-up table method. The DAC/ADC system includes a sampling signal generator, a DAC, and an ADC. The sampling signal generator generates first and second sampling signals according to first and second reference clocks by a look-up table method, respectively. The DAC receives a digital input signal and converts it into an analog output signal according to the first sampling signal. The ADC receives an analog input signal and converts it into a digital output signal according to the second sampling signal.
    • DAC / ADC系统,用于通过查找表方法生成DAC / ADC的参考时钟。 DAC / ADC系统包括采样信号发生器,DAC和ADC。 采样信号发生器分别通过查找表方法根据第一和第二参考时钟产生第一和第二采样信号。 DAC接收数字输入信号,并根据第一采样信号将其转换为模拟输出信号。 ADC接收模拟输入信号,并根据第二采样信号将其转换为数字输出信号。
    • 4. 发明授权
    • Apparatus for demodulating address in pre-groove symbols and apparatus for decoding pre-pit symbols
    • 用于解调前槽符号中的地址的装置和用于解码预凹坑符号的装置
    • US07693012B2
    • 2010-04-06
    • US11755237
    • 2007-05-30
    • Bing-Yu HsiehYuh ChengShu-Hung ChouJung-Feng Ho
    • Bing-Yu HsiehYuh ChengShu-Hung ChouJung-Feng Ho
    • G11B7/00
    • G11B20/1419G11B27/24G11B2020/1269
    • The invention provides an apparatus for demodulating an Address In Pre-groove (ADIP) symbol. The ADIP symbol is carried by a wobble signal of an optical disk and comprises a series of ADIP bits permuted according to one of a plurality of permutation patterns to make up the ADIP symbol. A wobble extraction module extracts the wobble signal from the optical disk. A reference wobble generator generates a reference wobble with the same frequency and phase as a fundamental frequency and phase of a positive wobble cycle of the wobble signal. A waveform difference measurement module then measures a difference between the wobble signal and the reference wobble to obtain a series of difference measurement values respectively corresponding to the ADIP bits. A pattern matching module then compares probabilities of the permutation of the ADIP bits agreeing with each of the permutation patterns according to the difference measurement values to determine the ADIP symbol.
    • 本发明提供了一种用于解调预编码地址(ADIP)符号的装置。 ADIP符号由光盘的摆动信号承载,并且包括根据多个置换模式中的一个置换的一系列ADIP位,以构成ADIP符号。 摆动提取模块从光盘中提取摆动信号。 参考摆动发生器产生与摆动信号的正摆动周期的基频和相位相同的频率和相位的参考摆动。 波形差测量模块然后测量摆动信号和参考摆动之间的差异,以获得分别对应于ADIP位的一系列差分测量值。 模式匹配模块然后根据差值测量值来比较与每个置换模式一致的ADIP位置的概率,以确定ADIP符号。