公开(公告)号：US20040213123A1

公开(公告)日：2004-10-28

申请号：US10830107

申请日：2004-04-23

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： Toshihiko Takahashi ,  Youichi Ogura ,  Kazutoshi Aida

IPC分类号： G11B007/005

CPC分类号： G11B5/09 ,  G11B5/027 ,  G11B20/10009

摘要： An optical disc device serving as an information memory and reproduction device includes: an A/D converter for performing sampling to an analog signal to convert the analog signal into a first digital signal, which has been offset-adjusted, using an n times higher frequency than that of a channel clock (where n is 2 or a larger integer than 2); and a digital equalizer for digitally performing wave-form equalization of a reproduction signal, which has been converted into the first digital signal, and outputting a second digital signal. In this manner, wave-form equalization is performed to the digital signal which has been A/D converted, so that a small circuit configuration can be obtained. Moreover, oversampling is performed, thus equivalently improving a resolution when A/D conversion is performed.

摘要翻译： 一种用作信息存储和再现装置的光盘装置包括：A / D转换器，用于对模拟信号进行采样，以将模拟信号转换成已被偏移调整的第一数字信号，使用n倍高频率 比通道时钟（其中n是2或比2大的整数）; 以及数字均衡器，用于数字地执行已被转换为第一数字信号的再现信号的波形均衡，并输出第二数字信号。 以这种方式，对已经进行A / D转换的数字信号进行波形均衡，从而可以获得小的电路配置。 此外，进行过采样，因此等同地提高了执行A / D转换时的分辨率。

公开(公告)号：US20040208103A1

公开(公告)日：2004-10-21

申请号：US10824595

申请日：2004-04-15

申请人： PIONEER CORPORATION

发明人： Norio Matsuda

IPC分类号： G11B007/005

CPC分类号： G11B19/128 ,  G11B7/0037

摘要： An information reproducing apparatus comprises an information obtaining device which obtains necessary information for reproduction from a loaded recording medium and a reproduction control device which exerts control to reproduce recorded information from the recording medium based on the obtained information, and the apparatus prompts a user to select a type of the recording medium, accepts selection of the type of the recording medium from the user, and obtains the necessary information for reproduction from the recording medium according to the selected type of the recording medium.

摘要翻译： 一种信息再现装置，包括一个信息获取装置，它从加载的记录介质获得必要的再现信息，再现控制装置根据所获得的信息从记录介质再现记录信息，并提示用户选择 一种类型的记录介质接受来自用户的记录介质的类型的选择，并且根据所选择的记录介质类型从记录介质获得用于再现的必要信息。

公开(公告)号：US20040208098A1

公开(公告)日：2004-10-21

申请号：US10804016

申请日：2004-03-19

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Sung-hee Hwang ,  Jung-wan Ko ,  Kyung-geun Lee

IPC分类号： G11B007/005

CPC分类号： G11B20/1883 ,  G11B7/24038 ,  G11B20/18 ,  G11B2020/1873 ,  G11B2220/20

摘要： A method of managing defects considering compatibility with a rewritable disc, a reproducing and/or recording apparatus implementing the same, a write-once recording medium therefore, and a medium including computer readable code controlling the implementation of defect management. The method includes providing a plurality of temporary defect management areas on the write-once recording medium; performing defect management using the plurality of temporary defect management areas; and when one among the plurality of temporary defect management areas is exhausted, writing full flag information indicating that the one temporary defect management area is exhausted to at least one among remaining temporary defect management areas. Accordingly, defect management can be efficiently performed.

摘要翻译： 考虑与可重写盘的兼容性的管理缺陷的方法，实施该缺陷盘的再现和/或记录装置，因此，一次写入记录介质以及包括控制缺陷管理实现的计算机可读代码的介质。 该方法包括在一次写入记录介质上提供多个临时缺陷管理区域; 使用所述多个临时缺陷管理区域执行缺陷管理; 并且当多个临时缺陷管理区域中的一个被耗尽时，将表示一个临时缺陷管理区域的完整标志信息写入剩余的临时缺陷管理区域中的至少一个。 因此，可以有效地执行缺陷管理。

公开(公告)号：US20040202092A1

公开(公告)日：2004-10-14

申请号：US10836213

申请日：2004-05-03

申请人： HITACHI, LTD.

发明人： Kouichirou Nishimura ,  Kouichi Hirose ,  Manabu Katsuki ,  Toshifumi Takeuchi

IPC分类号： G11B007/005

CPC分类号： G11B7/005 ,  G11B7/0053 ,  G11B7/0901 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/0948 ,  G11B2007/0006

摘要： The present invention has an object to stably reproduce wobble signals of all disks of CD-R/RW, DVD-R/RW and DVD-RAM by one wobble signal reproducing circuit. In the wobble signal reproducing circuit, an AGC (AUTOMATIC GAIN CONTROL) circuit for equating a push-pull circuit output of a wide range and an RF amplitude of an optical detector output of two systems obtained by push-pull, and an AGC (AUTOMATIC GAIN CONTROL) circuit for making a wobble amplitude uniform are provided with a function to hold a gain or to change over a response time constant, and at the time of reproduction of the DVD-R/RW, a land pre-pit region is detected by the push-pull output to hold AGC (AUTOMATIC GAIN CONTROL) or change over a response time constant. Besides, in an address information recording region (PID region) at the time of reproduction of the DVD-RAM, the AGC (AUTOMATIC GAIN CONTROL) is held or the response time constant is changed over.

摘要翻译： 本发明的目的是通过一个摆动信号再现电路来稳定地再现CD-R / RW，DVD-R / RW和DVD-RAM的所有磁盘的摆动信号。 在摆动信号再现电路中，用于将宽范围的推挽电路输出与通过推挽获得的两个系统的光检测器输出的RF幅度和AGC（AUTOMATIC）之间进行等效的AGC（自动增益控制）电路 提供摆动幅度均匀的增益控制电路具有保持增益或改变响应时间常数的功能，并且在再现DVD-R / RW时，检测到纹间预制凹坑区域 通过推挽输出保持AGC（自动增益控制）或更改响应时间常数。 此外，在再现DVD-RAM时的地址信息记录区域（PID区域）中，保持AGC（自动增益控制）或者改变响应时间常数。

公开(公告)号：US20040184375A1

公开(公告)日：2004-09-23

申请号：US10605097

申请日：2003-09-09

发明人： Yih-Shin Weng

IPC分类号： G11B007/005

CPC分类号： G11B19/125

摘要： A method for accessing a variable memory of an optical disk drive includes utilizing the optical disk drive to read and write data of an optical disk, and identifying the type of the data. If the data is CD data, arrange writing variables from a first initial address of the variable memory and reading variables from a second initial address of the variable memory. If the type of the data is DVD data, arrange writing variables from the first initial address of the variable memory and reading variables from the second initial address of the variable memory.

摘要翻译： 一种访问光盘驱动器的可变存储器的方法，包括利用光盘驱动器读取和写入光盘的数据，以及识别数据的类型。 如果数据是CD数据，则从变量存储器的第一个初始地址编写变量，并从变量存储器的第二个初始地址读取变量。 如果数据类型是DVD数据，则从变量存储器的第一个初始地址排列写入变量，并从变量存储器的第二个初始地址读取变量。

公开(公告)号：US20040151094A1

公开(公告)日：2004-08-05

申请号：US10760307

申请日：2004-01-21

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Sung-hee Hwann

IPC分类号： G11B007/005

CPC分类号： G11B20/1403

摘要： An apparatus and a method to accurately generate a bit clock synchronized with digital data. The apparatus includes an edge detecting unit, a first edge counter, a second edge counter, a first counter, and a bit clock generating unit. The edge detecting unit detects edges of the digital signal. The first edge counter counts a number of the detected edges during a first period. The second edge counter counts the number of the detected edges during a second period. The first counter is reset and counts a system clock if one of the edges is detected during the first period. The bit clock generating unit generates a bit clock based on a count value of the first counter or a channel bit interval, if one of the first edge count value and the second edge count value is equal to a first predetermined value.

摘要翻译： 一种精确生成与数字数据同步的位时钟的装置和方法。 该装置包括边缘检测单元，第一边缘计数器，第二边缘计数器，第一计数器和位时钟生成单元。 边缘检测单元检测数字信号的边缘。 第一边缘计数器在第一周期期间对多个检测到的边缘进行计数。 第二边缘计数器在第二周期期间计数检测到的边缘的数量。 如果在第一个周期内检测到其中一个边缘，则第一个计数器被复位并对系统时钟进行计数。 如果第一边缘计数值和第二边缘计数值中的一个等于第一预定值，则位时钟生成单元基于第一计数器的计数值或通道位间隔生成位时钟。

公开(公告)号：US20040151091A1

公开(公告)日：2004-08-05

申请号：US10712304

申请日：2003-11-14

申请人： Samsung Electronics Co., Ltd.

发明人： Byung-in Ma ,  In-sik Park ,  Chong-sam Chung ,  Kyung-geun Lee ,  Hyun-soo Park ,  Jae-seong Shim

IPC分类号： G11B007/005

CPC分类号： G11B19/125 ,  G11B7/0053 ,  G11B7/00736 ,  G11B20/1403 ,  G11B2007/0006

摘要： An apparatus for and a method of reproducing information from an optical information storage medium (OISM) in which inherent information and control data are recorded according to a bi-phase modulation method and other data are recorded according to a general modulation method. Sum signals of signals reflected from the OISM are determined. A ROM-PIC demodulator demodulates optical information storage medium-related information (OISMRI) from the sum signal. A data demodulator demodulates reproduction-related user data from the sum signal, a wobble PIC demodulator demodulates recordable OISMRI recorded as pit wobbles from a differential signal of the reflected signals, and a wobble PID demodulator demodulates physical identification data that is recorded as pit wobbles from the differential signal. A determination is made whether the OISM is a read-only OISM or a recordable OISM based on whether the optical information storage medium comprises a plurality of different modulation codes.

摘要翻译： 根据一般调制方法记录根据双相调制方法和其他数据记录固有信息和控制数据的光信息存储介质（OISM）的信息再现装置和方法。 确定从OISM反射的信号的和信号。 ROM-PIC解调器从和信号解调光信息存储介质相关信息（OISMRI）。 数据解调器从和信号解调再现相关的用户数据，摆动的PIC解调器从反射信号的差分信号解调记录为凹坑摆动的可记录的OISMRI，并且摆动PID解调器解调作为凹坑摆动记录的物理识别数据 差分信号。 基于光信息存储介质是否包括多个不同的调制码，确定OISM是只读OISM还是可记录OISM。

公开(公告)号：US20040141438A1

公开(公告)日：2004-07-22

申请号：US10749405

申请日：2004-01-02

发明人： Jeong Chae Youn

IPC分类号： G11B007/005

CPC分类号： G11B27/105 ,  G11B7/005 ,  G11B19/26 ,  G11B20/18 ,  G11B27/36 ,  G11B2220/2545 ,  G11B2220/2562

摘要： A method is provided for controlling a play speed in an optical disc device in which the current play speed is rapidly lowered when the address information of an optical disc such as a CD or DVD is abnormally detected under the condition in which the transfer rate of data temporarily stored in a buffer is a basic speed 1null, and in a sequential play mode for sequentially reading and reproducing A/V data recorded on the optical disc, thereby being capable of efficiently preventing discontinuous reproduction of A/V data caused by the repetition of pause and play operations during the sequential play operation.

摘要翻译： 提供了一种方法，用于当在诸如CD或DVD的光盘的地址信息在数据的传送速率的条件下被异常地检测到时，控制当前播放速度快速降低的光盘装置中的播放速度 临时存储在缓冲器中的是基本速度1x，并且在顺序播放模式下，用于顺序读取和再现记录在光盘上的A / V数据，从而能够有效地防止由重复引起的A / V数据的不连续再现 在顺序播放操作期间暂停和播放操作。

公开(公告)号：US20040125719A1

公开(公告)日：2004-07-01

申请号：US10626518

申请日：2003-07-25

申请人： NEC ELECTRONICS CORPORATION

发明人： Youichi Koseki

IPC分类号： G11B007/005

CPC分类号： G11B20/1403 ,  G11B7/0053 ,  G11B20/10527 ,  G11B27/3063 ,  G11B2020/1062 ,  G11B2220/2545

摘要： An optical disk playback apparatus for playing back or reproducing main data and its associated sub-code which are read from an optical recording medium comprises an interleave RAM for storing the main data. The optical disk playback apparatus performs a predefined synchronization protection on synchronization information included in the sub-code to generate a sub-code synchronization signal which is written into an empty area of the interleave RAM, and manages the addresses with a FIFO area in a manner similar to the main data, thereby causing the read sub-code synchronization signal to function in synchronization with the main data.

摘要翻译： 用于播放或再现从光记录介质读取的主数据及其相关子代码的光盘播放装置包括用于存储主数据的交错RAM。 光盘播放装置对包含在子代码中的同步信息执行预定义的同步保护，生成被写入交织RAM的空白区域的子代码同步信号，并以FIFO区域的方式管理地址 与主数据类似，从而使读取的子代码同步信号与主数据同步地工作。

公开(公告)号：US20040071069A1

公开(公告)日：2004-04-15

申请号：US10681642

申请日：2003-10-08

申请人： Fujitsu Limited

发明人： Masakazu Taguchi ,  Akihiro Itakura ,  Akiyoshi Uchida

IPC分类号： G11B007/005

CPC分类号： G11B20/10101 ,  G11B5/00813 ,  G11B5/012 ,  G11B20/10009 ,  G11B20/1866 ,  H03M13/39

摘要： In an apparatus for recording and regenerating data, a pass metric is calculated based on a likelihood converted from a previous calculation result iteratively until all pass metrics of the same data recorded many times on a recording medium are calculated, and then data recorded on the recording medium is decoded.

摘要翻译： 在用于记录和重新生成数据的装置中，基于从先前计算结果转换的似然率计算通过度量，直到计算记录在记录介质上多次记录的相同数据的所有通过度量，然后记录在记录上的数据 介质被解码。