公开(公告)号：WO1996036129A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007561

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M>2 comprises an M-ary (d,k) encoder for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero code symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=6 (3,6) code provides high density recording to a multi-level storage medium. The M=6 (3,6) encoder is implemented using a six-state encoder (304) and a modulo six waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接受数字输入数据的M-ary（d，k）编码器。 M-ary（d，k）编码器（304）对数字输入数据进行编码以产生多个码符号，其中每个码符号处于M级中的一个，并且每对非零码符号至少分开 d但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号幅度通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 6（3,6）代码为多级存储介质提供高密度记录。 使用六态编码器（304）和模六波形编码器（308）来实现M = 6（3,6）编码器。

公开(公告)号：WO1996036116A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007063

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M>2 comprises an M-ary (d,k) encoder (304) for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero code symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=6 (3,8) code provides high density recording to a multi-level storage medium. The M=6 (3,8) encoder is implemented using a ten-state encoder (304) and a modulo six waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接受数字输入数据的M-ary（d，k）编码器（304）。 M-ary（d，k）编码器（304）对数字输入数据进行编码以产生多个码符号，其中每个码符号处于M级中的一个，并且每对非零码符号至少分开 d但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号幅度通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 6（3,8）代码为多级存储介质提供高密度记录。 使用十态编码器（304）和模六波形编码器（308）来实现M = 6（3,8）编码器。

公开(公告)号：WO1996016405A1

公开(公告)日：1996-05-30

申请号：PCT/US1995015221

申请日：1995-11-21

Applicant: OPTEX CORPORATION ,  AT & T CORP.

Inventor： OPTEX CORPORATION ,  AT & T CORP. ,  McLAUGHLIN, Steven, W. ,  CALDERBANK, A., Robert ,  LAROIA, Rajiv ,  GERPHEIDE, John, M.

IPC: G11B20/10

CPC classification number: H04L25/4975 ,  G11B7/013 ,  G11B20/10009 ,  G11B20/1496

Abstract: A system and method for recording multi-level data to a multi-amplitude recording channel encodes binary data to form multi-level data. The multi-level data are recorded to the storage media for later recall. The system utilizes linear, multi-amplitude recording media which allows data to be stored as multi-level data - requiring fewer "bits" to represent the same number of symbols. To obtain greater data density in the storage media, a diffraction limited write laser is utilized, resulting in a smaller write-spot size. Because the read laser is of a longer wavelength, its diffraction limited spot size is larger. As a result, more than one mark is read at a given read time resulting in an inter-symbol interference. Trellis coded modulation techniques are adopted to convert the binary input data into M-ary data having M levels. Further coding is then performed to compensate for the effects of the intersymbol interference. This is accomplished by precoding the data using a Tomlinson-Harashima precoder. The precoding results in multi-level data (of m levels, where m

Abstract translation: 用于将多级数据记录到多幅度记录通道的系统和方法对二进制数据进行编码以形成多级数据。 多级数据被记录到存储介质以供以后调用。 该系统利用线性，多幅度记录介质，允许将数据存储为多级数据 - 需要较少的“位”来表示相同数量的符号。 为了在存储介质中获得更大的数据密度，利用衍射限制写入激光器，导致较小的写入点尺寸。 因为读取激光器的波长较长，其衍射受限光斑尺寸较大。 结果，在给定的读取时间读取多于一个标记，导致符号间干扰。 采用网格编码调制技术将二进制输入数据转换为具有M级的M元数据。 然后执行进一步编码以补偿符号间干扰的影响。 这是通过使用Tomlinson-Harashima预编码器预编码数据来实现的。 预编码导致多级数据（m级，其中m

公开(公告)号：WO1996036123A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007533

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M>2 comprises an M-ary (d,k) encoder for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero code symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=8(1,2) code provides high density recording to a multi-level storage medium. The M=8(1,2) encoder is implemented using a four-state encoder (304) and a modulo eight waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接受数字输入数据的M-ary（d，k）编码器。 M-ary（d，k）编码器（304）对数字输入数据进行编码以产生多个码符号，其中每个码符号处于M级中的一个，并且每对非零码符号至少分开 d但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号幅度通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 8（1,2）码向多级存储介质提供高密度记录。 使用四态编码器（304）和模8波形编码器（308）来实现M = 8（1,2）编码器。

公开(公告)号：WO1996036117A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007065

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M>2 comprises an M-ary (d,k) encoder (304) for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero code symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=7 (3,7) code provides high density recording to a multi-level storage medium. The M=7 (3,7) encoder is implemented using a four-state encoder (304) and a modulo seven waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接受数字输入数据的M-ary（d，k）编码器（304）。 M-ary（d，k）编码器（304）对数字输入数据进行编码以产生多个码符号，其中每个码符号处于M级中的一个，并且每对非零码符号至少分开 d但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号幅度通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 7（3,7）代码为多级存储介质提供高密度记录。 使用四态编码器（304）和模七波形编码器（308）来实现M = 7（3,7）编码器。

公开(公告)号：WO1996036115A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007062

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M>2 comprises an M-ary (d,k) encoder (304) for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero code symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=5(3,7) code provides high density recording to a multi-level storage medium. The M=5(3,7) encoder is implemented using a six-state encoder (304) and a modulo five waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接受数字输入数据的M-ary（d，k）编码器（304）。 M-ary（d，k）编码器（304）对数字输入数据进行编码以产生多个码符号，其中每个码符号处于M级中的一个，并且每对非零码符号至少分开 d但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号幅度通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 5（3,7）代码为多级存储介质提供高密度记录。 使用六态编码器（304）和模五波形编码器（308）来实现M = 5（3,7）编码器。

公开(公告)号：WO1996036128A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007560

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M>2 comprises an M-ary (d,k) encoder for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero code symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=10(3,6) code provides high density recording to a multi-level storage medium. The M=10(3,6) encoder is implemented using a fourteen-state encoder (304) and a modulo ten waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接受数字输入数据的M-ary（d，k）编码器。 M-ary（d，k）编码器（304）对数字输入数据进行编码以产生多个码符号，其中每个码符号处于M级中的一个，并且每对非零码符号至少分开 d但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号幅度通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 10（3,6）代码为多级存储介质提供高密度记录。 使用十四状态编码器（304）和模十波形编码器（308）来实现M = 10（3,6）编码器。

公开(公告)号：WO1996036126A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007558

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M > 2 comprises an M-ary (d,k) encoder for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero code symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=5(0,2) code provides high density recording to a multi-level storage medium. The M=5(0,2) encoder is implemented using a three-state encoder (304) and a modulo five waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接受数字输入数据的M-ary（d，k）编码器。 M-ary（d，k）编码器（304）对数字输入数据进行编码以产生多个码符号，其中每个码符号处于M级中的一个，并且每对非零码符号至少分开 d但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号幅度通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 5（0,2）代码为多级存储介质提供高密度记录。 使用三态编码器（304）和模五波形编码器（308）来实现M = 5（0,2）编码器。

公开(公告)号：WO1996036118A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007066

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M>2 comprises an M-ary (d,k) encoder (304) for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=6 (2,4) code provides high density recording to a multi-level storage medium. The M=6 (2,4) encoder is implemented using a six-state encoder (304) and a modulo six waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接受数字输入数据的M-ary（d，k）编码器（304）。 M元（d，k）编码器（304）对数字输入数据进行编码以产生多个代码符号，其中每个代码符号处于M级中的一个，并且每对非零符号对应至少分开d 但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号幅度通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 6（2,4）代码为多级存储介质提供高密度记录。 使用六态编码器（304）和模六波形编码器（308）来实现M = 6（2,4）编码器。

公开(公告)号：WO1996036125A1

公开(公告)日：1996-11-14

申请号：PCT/US1996007557

申请日：1996-05-13

Applicant: OPTEX CORPORATION

Inventor： OPTEX CORPORATION ,  MCLAUGHLIN, Steven, W.

IPC: H03M05/20

CPC classification number: H03M5/20

Abstract: A system for encoding digital data with an M-ary (d,k) code to provide multi-level coded data where M>2 comprises an M-ary (d,k) encoder for accepting digital input data. The M-ary (d,k) coder (304) encodes the digital input data to produce a plurality of code symbols, where each code symbol is at one of M levels and each pair of non-zero code symbols is separated by at least d but no more than k zeros. A waveform encoder (308) converts the code symbols into waveform signal amplitudes compatible with a multi-level channel. Each waveform signal amplitude is generated by modulo M addition of a current code symbol with a previous waveform signal amplitude. A specific M=5 (4,11) code provides high density recording to a multi-level storage medium. The M=5 (4,11) encoder is implemented using a 22-state encoder (304) and a modulo five waveform encoder (308).

Abstract translation: 一种用M-ary（d，k）码编码数字数据以提供多级编码数据的系统，其中M> 2包括用于接收数字输入数据的M-ary（d，k）编码器。 M元（d，k）编码器（304）对数字输入数据进行编码以产生多个代码符号，其中每个代码符号处于M级中的一个，并且每对非零代码符号至少分开 d但不超过k个零。 波形编码器（308）将代码符号转换成与多级信道兼容的波形信号幅度。 每个波形信号振幅通过具有先前波形信号振幅的当前码元的模M相加产生。 特定的M = 5（4,11）码向多级存储介质提供高密度记录。 使用22状态编码器（304）和模五波形编码器（308）来实现M = 5（4,11）编码器。