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11. 发明公开

EP0149245A3 PCM data recording system 失效
标题翻译： PCM数据记录系统
公开(公告)号：EP0149245A3
公开(公告)日：1987-09-23
申请号：EP84116409
申请日：1984-12-27
申请人： HITACHI, LTD.
发明人： Okamoto, Hiroo , Kobayashi, Masaharu , Arai, Takao , Noguchi, Takaharu
IPC分类号： G11B20/18 , G11B20/10 , G11B20/12 , H03M13/00
CPC分类号： G11B20/1208 , G11B20/10527 , G11B20/1211 , G11B20/1803 , G11B20/1813 , G11B27/3027 , G11B27/3063 , G11B2020/10546 , G11B2020/10592 , G11B2220/90 , G11B2220/913
摘要： A rotary-head PCM data recorder in which PCM signals of m in number, synchronizing signal (1), control signals (5-10) related to the PCM signals, and a parity signal (4) for error detection and correction are formed into data blocks (0-127), and data blocks of n in number are recorded on one track of a magnetic tape. Among the control signals, bits of signals common to n data blocks (i.e., information needed once for each track) are formed in distributed data allocated in multiple blocks or multiple tracks, and multiple block distributive control data are recorded on one track multiple number of times, or multiple track distributive control data are recorded along n block strings multiple number of times. In reproduction, block or track distributive data are composed to reproduce the control signals. The recorder in this arrangement reduces the bits count needed for the control signals. and is capable of compensating the dropout of reproduced data due to scars on the tape and the like.

12. 发明公开

EP0197560A3 Method and apparatus for recording and/or reproducing PCM signals 失效
标题翻译：用于记录和/或复制PCM信号的方法和装置
公开(公告)号：EP0197560A3
公开(公告)日：1987-08-19
申请号：EP86104920
申请日：1986-04-10
申请人： HITACHI, LTD.
发明人： Okamoto, Hiroo , Kobayashi, Masaharu Hitachihachimanyama , Noguchi, Takaharu
IPC分类号： G11B20/10 , G11B05/008
CPC分类号： G11B20/10527 , G11B20/1809
摘要： When a PCM signal having a sampling frequency of 32 KHz, a quantization of 12 bits per sample, and 4 channel is to be recorded onto tape (33), the PCM signal undergoes, prior to being recorded onto the tape, such predetermined data dispersion that burst errors incurred in the reproduction operation may be compensated.

13. 发明公开

EP0150811A3 Method and apparatus for recording digital signals 失效
标题翻译：用于记录数字信号的方法和装置
公开(公告)号：EP0150811A3
公开(公告)日：1987-08-05
申请号：EP85100696
申请日：1985-01-24
申请人： HITACHI, LTD.
发明人： Okamoto, Hiroo , Kobayashi, Masaharu , Noguchi, Takaharu , Arai, Takao
IPC分类号： G11B20/18 , G11B20/10
CPC分类号： G11B20/1809
摘要： @ Disclosed is a method of the arrangement of the error detection/correction code appended to the recording signal for a PCM recorder, that ensures detection and/or correction of a dropout or error of the information block address in the playback operation. (n recording digital signals on a recording medium, the recording signal (8) is formatted in n-word blocks, each block including a sync signal (4) for providing a reference timing for the playback operation, control signal (5) releated to the digital signal, block address signal (6) for identifying the order of n words, error detection signal (7) for detecting the error in the control signal and block address signal, and error detection/correction code (9) used for the error detection and/ or correction for the n-word block. The recording system includes an error detection/correction code generating circuit (17) which produces error detection/correction codes using a Reed Solomon code or b-adjacent code. The generated error detection/correction codes are collected through a multiplexer (18) so that a recording signal is arranged, and it is recorded on the recording medium.

14. 发明公开

EP0209141A3 PCM Signal recording and reproducing apparatus 失效
标题翻译： PCM信号记录和再现设备
公开(公告)号：EP0209141A3
公开(公告)日：1987-07-22
申请号：EP86109836
申请日：1986-07-17
申请人： HITACHI, LTD.
发明人： Okamoto, Hiroo , Kimura, Hiroyuki , Yamazaki, Shigeru , Noguchi, Takaharu , Kobayashi, Masaharu
IPC分类号： G11B05/86 , G11B20/10 , G11B20/18
CPC分类号： G11B20/1809 , G11B5/86 , G11B20/10527
摘要： A PCM signal recording and reproducing apparatus comprises first and second memory circuits (10, 11), in which PCM signals are read and written using the first memory circuit (10), while PCM signals stored in the second memory circuit (11) are error-corrected. At the end of writing by the first memory circuit, the first and second memory circuits are interchanged to read the error-corrected PCM signals stored in the second memory circuit. The read-out error-corrected PCM signals are then recorded on another magnetic tape (2).

15. 发明公开

EP0169540A3 Method and apparatus for recording and reproducing a digital signal with a stationary head 失效
标题翻译：用于记录和再现数字信号的方法和装置
公开(公告)号：EP0169540A3
公开(公告)日：1987-02-04
申请号：EP85109200
申请日：1985-07-23
申请人： HITACHI, LTD.
发明人： Kobayashi, Masaharu 331, Hitachi-Hachimanyama , Okamoto, Hiroo , Arai, Takao
IPC分类号： G11B20/18
CPC分类号： G11B20/1809
摘要： In a stationary head type PCM recorder having an AID converter for sampling an analog signal and converting the analog signal to a digital signal, a signal processing circuit including data delay means (4-8) for adding an error detection and correction code and a predetermined signal to the digital signal for each error correction group of a predetermined number of samples, and a multi-track head for recording an output of the signal processing circuit on a plurality of tracks of a magnetic record medium and reproducing the signals recorded on the magnetic record medium; incorrectability of the error detection and correction code for a burst error in the output analog signal due to a burst error in the reproduced output is reduced by delaying parity words by the error detection and correction code and the digital signal data by different delay times such that the digital signal data are dispersely recorded in a track direction and a tape transport direction, and allotting the delayed data to the multi-track head such that the data of the adjacent sample points are spaced from each other by at least the distribution length of the parity words and the parity words is arranged between the distributed adjacent data.

16. 发明公开

EP0178589A2 Method and apparatus for recording pcm signal 失效
标题翻译：用于记录的PCM信号的方法和装置。
公开(公告)号：EP0178589A2
公开(公告)日：1986-04-23
申请号：EP85112832.2
申请日：1985-10-10
申请人： HITACHI, LTD.
发明人： Okamoto, Hiroo , Kobayashi, Masaharu
IPC分类号： G11B20/14 , G11B20/10
CPC分类号： G11B5/0086 , G11B20/10527 , G11B20/1426 , G11B20/1809
摘要： In PCM signal recording method and apparatus using rotary heads for converting two channels of audio PCM signals each consisting of 12-bit words to a data consisting of 8-bit words and recording the converted data, there is provided means (22) for converting the PCM signals to two data (10, 12) each consisting of eight high order bits of each of two words (8, 9) of the PCM signals, and an 8-bit data (11) consisting of the remaining four low order bits of the respective words. The converted PCM data are recorded on a record tape in a format such that PCM signals having i words channel which are to be recorded on first and second tracks (6, 7) are divided into a first half and a second half, even data in the first half and odd data in the second half constitute the data to be recorded on the first track, and odd data in the first half and even data in the second half constitute the data to be recorded on the second track.

17. 发明授权

EP1939879B1 Data recording method 有权
标题翻译：数据记录方法
公开(公告)号：EP1939879B1
公开(公告)日：2010-06-02
申请号：EP07254010.7
申请日：2007-10-09
申请人： Hitachi, Ltd.
发明人： Shiokawa, Junji , Okamoto, Hiroo , Watanabe, Mitsunobu
IPC分类号： G11B27/034 , G11B27/32
CPC分类号： G11B27/329 , G11B27/034 , G11B2220/216 , G11B2220/2537

18. 发明公开

EP2001023A3 Control method, recording device and recording and reproducing device 审中-公开
标题翻译：控制方法，记录装置和记录和再现装置
公开(公告)号：EP2001023A3
公开(公告)日：2009-03-25
申请号：EP08251934.9
申请日：2008-06-04
申请人： Hitachi Ltd.
发明人： Kanemaru, Takashi , Tsuruga, Sadao , Okamoto, Hiroo
IPC分类号： G11B20/00
CPC分类号： G11B20/00086 , G11B20/00731 , G11B27/28 , H04N5/775 , H04N5/913 , H04N9/8205 , H04N2005/91364
摘要： The invention provides a control method in a receiver (3) which receives digital contents and copy control information of the digital contents, including the steps of: when the received copy control information has copy generation information indicating Copy-One-Generation (SA01), recording the digital contents on a recording medium while setting the digital contents in a copy-prohibited state (SA04) in the case where the recording medium is a removable recording medium (SA02); recording the digital contents on a recording medium while setting the digital contents in a copy-prohibited state (SA04) when the received copy control information indicates prohibition of a plurality of copies (SA03) in the case where the recording medium is an internal recording medium which records digital contents while locally encrypting the digital contents (SA02); and recording the digital contents on a recording medium while setting the digital contents in a copiable state up to a predetermined copiable number (SA05) when the received copy control information indicates permission of a plurality of copies (SA03) in the case where the recording medium is an internal recording medium which records digital contents while locally encrypting the digital contents (SA02). Thus, user friendliness is improved while copy control is performed in the case where a digital broadcasting program marked as Copy One Generation is recorded.

19. 发明公开

EP2001023A2 Control method, recording device and recording and reproducing device 审中-公开
标题翻译： Steuerverfahren，Aufzeichnungsgerätund Aufzeichnungs- undWiedergabegerät
公开(公告)号：EP2001023A2
公开(公告)日：2008-12-10
申请号：EP08251934.9
申请日：2008-06-04
申请人： Hitachi Ltd.
发明人： Kanemaru, Takashi , Tsuruga, Sadao , Okamoto, Hiroo
IPC分类号： G11B20/00
CPC分类号： G11B20/00086 , G11B20/00731 , G11B27/28 , H04N5/775 , H04N5/913 , H04N9/8205 , H04N2005/91364
摘要： The invention provides a control method in a receiver (3) which receives digital contents and copy control information of the digital contents, including the steps of: when the received copy control information has copy generation information indicating Copy-One-Generation (SA01), recording the digital contents on a recording medium while setting the digital contents in a copy-prohibited state (SA04) in the case where the recording medium is a removable recording medium (SA02); recording the digital contents on a recording medium while setting the digital contents in a copy-prohibited state (SA04) when the received copy control information indicates prohibition of a plurality of copies (SA03) in the case where the recording medium is an internal recording medium which records digital contents while locally encrypting the digital contents (SA02); and recording the digital contents on a recording medium while setting the digital contents in a copiable state up to a predetermined copiable number (SA05) when the received copy control information indicates permission of a plurality of copies (SA03) in the case where the recording medium is an internal recording medium which records digital contents while locally encrypting the digital contents (SA02). Thus, user friendliness is improved while copy control is performed in the case where a digital broadcasting program marked as Copy One Generation is recorded.
摘要翻译：本发明提供一种接收机（3）中的控制方法，该接收机（3）接收数字内容和复制数字内容的控制信息，包括以下步骤：当所接收的复制控制信息具有指示复制一代（SA01）的复制产生信息时，在记录介质是可移动记录介质（SA02）的情况下，将数字内容记录在记录介质上同时将数字内容设置为禁止复制状态（SA04）; 在记录介质是内部记录介质的情况下，当所接收的复制控制信息表示禁止多个副本（SA03）时，将数字内容记录在记录介质上，同时将数字内容设置为禁止复制状态（SA04）其在本地加密数字内容（SA02）时记录数字内容; 并且当在所述记录介质的情况下所接收的复制控制信息指示多个副本的许可（SA03）时，将所述数字内容记录在记录介质上，同时将所述数字内容设置为可复制状态直到预定的可复制数（SA05）是在本地加密数字内容（SA02）的同时记录数字内容的内部记录介质。因此，在记录标记为一代的数字广播节目的情况下执行复制控制时，改善了用户友好性。

20. 发明公开

EP1939883A1 Data recording method 审中-公开
标题翻译：数据记录方法
公开(公告)号：EP1939883A1
公开(公告)日：2008-07-02
申请号：EP07254011.5
申请日：2007-10-09
申请人： Hitachi, Ltd.
发明人： Shiokawa, Junji , Okamoto, Hiroo , Watanabe, Mitsunobu
IPC分类号： G11B27/32 , G11B27/10
CPC分类号： G11B27/329 , G11B27/105 , G11B2220/2541
摘要： There is provided an optimum format for recording an AV stream of a digital broadcast or the like, omitting a reproduction of an unnecessary stream previous or subsequent to the recorded stream, and controlling a genuinely needed reproduction range in frame units.
A configuration is such as to record a GOP position of a reproduction start of a recorded AV stream file, and a frame position thereof, as well as a GOP position of a reproduction finish and a frame position thereof, in a management file.
摘要翻译：提供了用于记录数字广播等的AV流，省略再现记录流之前或之后的不必要流，并以帧为单位控制真正需要的再现范围的最佳格式。在管理文件中记录记录AV流文件的再现开始的GOP位置及其帧位置，以及再现结束的GOP位置及其帧位置。

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