-
公开(公告)号：EP0873023A3
公开(公告)日：2000-08-30
申请号：EP98302920.8
申请日：1998-04-15
申请人： Hitachi, Ltd.
CPC分类号： G11B27/005 , G11B27/3081 , G11B2220/91 , H04N5/775 , H04N5/78263 , H04N5/783 , H04N9/7921 , H04N9/8042 , H04N9/8063 , H04N9/8205 , H04N9/8227 , H04N19/40
摘要： An object of the present invention is to provide a digital signal recording method and a digital signal recording apparatus, capable of readily producing a signal used to reproduce in a trick play mode from a digital compression video signal. The above-described object of the present invention may be achieved by such a digital video signal recording method for recording a first compression frame signal compressed without using a correlation between frames, and a digital compression video signal having preselected bytes of a packet format constituted by a second compression frame signal compressed with using the correlation between the frames, in which a third signal made of a packet containing the first compression frame signal is produced, and then is recorded in combination with the packet of the digital compression signal.
-
2.发明公开
公开(公告)号：EP0735536A2
公开(公告)日：1996-10-02
申请号：EP96104729.7
申请日：1996-03-25
申请人： HITACHI, LTD.
CPC分类号： H04N5/9261 , G11B20/10009 , G11B20/1833
摘要： A digital signal recording method and apparatus for recording a digital signal on a recording medium (111) by dividing the digital signal at intervals of a certain byte number, adding to each of the divided signals a synchronizing signal, a control signal including block address information, and an error detection and correction code to form signal blocks, and precoding each of the signal blocks in order to detect a partial response. Before the precode processing, the digital signal and the error detection and correction code are scrambled (303) on the basis of the control signal, and the control signal is inverted (301).
摘要翻译： 一种数字信号记录方法和装置，用于通过以某个字节数的间隔划分数字信号将数字信号记录在记录介质上，将每个分割信号加到同步信号，包括块地址信息的控制信号 以及用于形成信号块的错误检测和校正码，并且对每个信号块进行预编码以便检测部分响应。 在预编码处理之前，数字信号和错误检测和校正码根据控制信号进行加扰（303），控制信号反转（301）。
-
公开(公告)号：EP1534020A2
公开(公告)日：2005-05-25
申请号：EP05003744.9
申请日：1996-04-24
申请人： Hitachi, Ltd.
IPC分类号： H04N9/804
CPC分类号： H04N5/85 , G11B20/0084 , H04B7/18523 , H04N5/4401 , H04N5/77 , H04N5/913 , H04N7/165 , H04N9/8042 , H04N21/234318 , H04N21/2543 , H04N21/4147 , H04N21/4305 , H04N21/4307 , H04N21/4331 , H04N21/4334 , H04N21/4345 , H04N21/4367 , H04N21/43853 , H04N21/4405 , H04N21/44204 , H04N21/4623 , H04N21/47208 , H04N21/8355 , H04N21/8547 , H04N2005/91364
摘要： An apparatus (52) is provided for receiving (210) a digital signal comprising a plurality of time-division multiplexed digital programs (160-163) with discrimination information and quide information describing the contents of said plurality of programs. The apparatus includes a program selector (230) for selecting a program from the plurality of programs based on the discrimination information, data former (290) which forms guide information regarding the selected program from the received guide information and output means (203) connected to a recording/recording device (53) which outputs the selected program with its related guide information.
摘要翻译： 一种装置（52）被设置用于接收（210）的数字信号，其包括的时分多路复用数字节目与辨别信息和quide信息描述的节目，所述多个中的内容有多个（160-163）。 该设备包括用于基于所述识别信息从程序多元选择程序的程序选择器（230），数据前（290），其形成引导信息关于所选择的从所接收的引导信息和输出装置（203），连接到节目 记录/记录装置（53）所选择节目与它的相关信息引导输出。
-
4.发明公开
公开(公告)号：EP0740478A2
公开(公告)日：1996-10-30
申请号：EP96106436.7
申请日：1996-04-24
申请人： HITACHI, LTD.
IPC分类号： H04N9/804
CPC分类号： H04N5/85 , G11B20/0084 , H04B7/18523 , H04N5/4401 , H04N5/77 , H04N5/913 , H04N7/165 , H04N9/8042 , H04N21/234318 , H04N21/2543 , H04N21/4147 , H04N21/4305 , H04N21/4307 , H04N21/4331 , H04N21/4334 , H04N21/4345 , H04N21/4367 , H04N21/43853 , H04N21/4405 , H04N21/44204 , H04N21/4623 , H04N21/47208 , H04N21/8355 , H04N21/8547 , H04N2005/91364
摘要： A method and apparatus is provided for receiving and/or reproducing a digital signal, capable of efficiently recording a compressed, packeted digital signal (170-173) and inhibiting a copy thereof. An input packet signal is added (Fig. 9) with a time stamp indicating a relative time of an arrival of the packet, and the packet signals of digital information with the added time stamps are recorded at reduced intervals (Fig. 8(3)) therebetween. In reproducing, a packet interval adjusting circuit (Fig. 11) restores the original packet intervals in accordance with the time stamps, and then a time stamp change circuit (Fig. 9) changes at least one bit of the time stamp and thereafter outputs the digital information.
摘要翻译： 提供了一种用于接收和/或重放数字信号的，能够记录一个压缩的高效，包装的数字信号（170-173）和它们的复制抑制的方法和装置。 输入分组信号的3加入（图9）与时间戳指示该分组的到达的相对时间，和数字信息与所添加的时间戳的分组信号在降低的间隔（记录图8（） ）之间存在。 再现，数据包间隔调整电路（图11）中恢复雅舞蹈原始数据包间隔与所述时间戳，然后时间戳改变电路（图9）改变的时间戳中的至少一个比特，然后输出该 数字信息。
-
公开(公告)号：EP1534020A3
公开(公告)日：2005-06-01
申请号：EP05003744.9
申请日：1996-04-24
申请人： Hitachi, Ltd.
IPC分类号： H04N9/804
CPC分类号： H04N5/85 , G11B20/0084 , H04B7/18523 , H04N5/4401 , H04N5/77 , H04N5/913 , H04N7/165 , H04N9/8042 , H04N21/234318 , H04N21/2543 , H04N21/4147 , H04N21/4305 , H04N21/4307 , H04N21/4331 , H04N21/4334 , H04N21/4345 , H04N21/4367 , H04N21/43853 , H04N21/4405 , H04N21/44204 , H04N21/4623 , H04N21/47208 , H04N21/8355 , H04N21/8547 , H04N2005/91364
摘要： An apparatus (52) is provided for receiving (210) a digital signal comprising a plurality of time-division multiplexed digital programs (160-163) with discrimination information and quide information describing the contents of said plurality of programs. The apparatus includes a program selector (230) for selecting a program from the plurality of programs based on the discrimination information, data former (290) which forms guide information regarding the selected program from the received guide information and output means (203) connected to a recording/recording device (53) which outputs the selected program with its related guide information.
-
6.发明公开Input-output circuit, recording apparatus and reproduction apparatus for digital video signal 失效数字视频信号的输入输出电路，记录装置和再现装置
公开(公告)号：EP0891082A3
公开(公告)日：1999-03-03
申请号：EP98116725.7
申请日：1995-10-26
申请人： Hitachi, Ltd.
IPC分类号： H04N5/926
CPC分类号： H04N7/173 , G11B15/087 , G11B15/4731 , G11B15/52 , G11B20/1211 , G11B20/1813 , G11B27/005 , G11B27/032 , G11B27/3027 , G11B27/3036 , G11B27/3063 , G11B2220/90 , G11B2220/91 , H04B7/18523 , H04L12/64 , H04N5/775 , H04N7/106 , H04N7/1675 , H04N9/7921 , H04N9/8042 , H04N9/8233 , H04N9/877 , H04N21/4325 , H04N21/4334 , H04N2005/91321
摘要： The invention provides an apparatus for recording a digitally compressed video signal containing a reference clock on a magnetic recording medium by means of a rotary head, wherein the digitally compressed video signal is an intermittent input signal in packet form including a time stamp for the packet. The apparatus comprises means for generating a reference signal for controlling the rotation of the rotary head in phase with the time stamp; and means for controlling the rotation of said rotary head on the basis of the reference signal generated from said generating means.
摘要翻译： 本发明提供了一种用旋转磁头在磁记录介质上记录含有参考时钟的数字压缩视频信号的设备，其中数字压缩视频信号是包括分组形式的间歇输入信号，包括分组的时间标记。 该设备包括用于产生用于与时间戳同相地控制旋转头的旋转的参考信号的装置; 以及用于根据由所述发生装置产生的参考信号控制所述旋转头的旋转的装置。
-
7.发明公开Input-output circuit, recording apparatus and reproduction apparatus for digital video signal 失效Eingangs-Ausgangsschaltung，Aufnahme- und Wiedergabeanlagefürdigitales Fernsehsignal
公开(公告)号：EP0710021A3
公开(公告)日：1997-08-13
申请号：EP95116895.4
申请日：1995-10-26
申请人： HITACHI, LTD.
发明人： Okamoto, Hiroo , Hosokawa, Kyoichi , Owashi, Hitoaki , Tachibana, Hiroaki, Hamingu Hitachi F201 , Noguchi, Takaharu
IPC分类号： H04N5/926
CPC分类号： H04N7/173 , G11B15/087 , G11B15/4731 , G11B15/52 , G11B20/1211 , G11B20/1813 , G11B27/005 , G11B27/032 , G11B27/3027 , G11B27/3036 , G11B27/3063 , G11B2220/90 , G11B2220/91 , H04B7/18523 , H04L12/64 , H04N5/775 , H04N7/106 , H04N7/1675 , H04N9/7921 , H04N9/8042 , H04N9/8233 , H04N9/877 , H04N21/4325 , H04N21/4334 , H04N2005/91321
摘要： A video signal input-output circuit and a recording-reproduction apparatus in which a digitally compressed video signal input in packet form can be recorded and reproduced efficiently and in stable fashion. In this apparatus, a clock reference is detected from a packet signal containing the clock reference and a digitally compressed video signal, a time stamp for a packet is generated using a clock signal in phase with the clock reference and added to the particular packet, and the packet signals with the time stamp added thereto are recorded closely to each other in a data storage element such as a magnetic recording medium. At playback, the packet interval is output by being restored to the original length on the basis of the time stamp added to the packet in store.
摘要翻译： 视频信号输入输出电路和记录再现装置，其中以数据形式输入的数字压缩视频信号可以有效和稳定地被记录和再现。 在该装置中，从包含时钟参考和数字压缩视频信号的分组信号中检测时钟参考，使用与时钟参考同相的时钟信号产生分组的时间标记并将其添加到特定分组，以及 附加有时间戳的分组信号在诸如磁记录介质的数据存储元件中彼此紧密地记录。 在回放时，通过基于在存储中添加到分组的时间标记恢复到原始长度来输出分组间隔。
-
公开(公告)号：EP1209923A3
公开(公告)日：2002-08-28
申请号：EP02003234.8
申请日：1996-04-24
申请人： Hitachi, Ltd.
IPC分类号： H04N9/804
CPC分类号： H04N5/85 , G11B20/0084 , H04B7/18523 , H04N5/4401 , H04N5/77 , H04N5/913 , H04N7/165 , H04N9/8042 , H04N21/234318 , H04N21/2543 , H04N21/4147 , H04N21/4305 , H04N21/4307 , H04N21/4331 , H04N21/4334 , H04N21/4345 , H04N21/4367 , H04N21/43853 , H04N21/4405 , H04N21/44204 , H04N21/4623 , H04N21/47208 , H04N21/8355 , H04N21/8547 , H04N2005/91364
摘要： A method and apparatus is provided for receiving and/or reproducing a digital signal, capable of efficiently recording a compressed, packeted digital signal (170-173) and inhibiting a copy thereof. An input packet signal is added (Fig. 9) with a time stamp indicating a relative time of an arrival of the packet, and the packet signals of digital information with the added time stamps are recorded at reduced intervals (Fig. 8(3)) therebetween. In reproducing, a packet interval adjusting circuit (Fig. 11) restores the original packet intervals in accordance with the time stamps, and then a time stamp change circuit (Fig. 9) changes at least one bit of the time stamp and thereafter outputs the digital information.
-
9.发明授权
公开(公告)号：EP0740478B1
公开(公告)日：2002-08-28
申请号：EP96106436.7
申请日：1996-04-24
申请人： Hitachi, Ltd.
IPC分类号： H04N9/804
CPC分类号： H04N5/85 , G11B20/0084 , H04B7/18523 , H04N5/4401 , H04N5/77 , H04N5/913 , H04N7/165 , H04N9/8042 , H04N21/234318 , H04N21/2543 , H04N21/4147 , H04N21/4305 , H04N21/4307 , H04N21/4331 , H04N21/4334 , H04N21/4345 , H04N21/4367 , H04N21/43853 , H04N21/4405 , H04N21/44204 , H04N21/4623 , H04N21/47208 , H04N21/8355 , H04N21/8547 , H04N2005/91364
-
公开(公告)号：EP1209923A2
公开(公告)日：2002-05-29
申请号：EP02003234.8
申请日：1996-04-24
申请人： Hitachi, Ltd.
IPC分类号： H04N9/804
CPC分类号： H04N5/85 , G11B20/0084 , H04B7/18523 , H04N5/4401 , H04N5/77 , H04N5/913 , H04N7/165 , H04N9/8042 , H04N21/234318 , H04N21/2543 , H04N21/4147 , H04N21/4305 , H04N21/4307 , H04N21/4331 , H04N21/4334 , H04N21/4345 , H04N21/4367 , H04N21/43853 , H04N21/4405 , H04N21/44204 , H04N21/4623 , H04N21/47208 , H04N21/8355 , H04N21/8547 , H04N2005/91364
摘要： A method and apparatus is provided for receiving and/or reproducing a digital signal, capable of efficiently recording a compressed, packeted digital signal (170-173) and inhibiting a copy thereof. An input packet signal is added (Fig. 9) with a time stamp indicating a relative time of an arrival of the packet, and the packet signals of digital information with the added time stamps are recorded at reduced intervals (Fig. 8(3)) therebetween. In reproducing, a packet interval adjusting circuit (Fig. 11) restores the original packet intervals in accordance with the time stamps, and then a time stamp change circuit (Fig. 9) changes at least one bit of the time stamp and thereafter outputs the digital information.
摘要翻译： 提供了一种用于接收和/或重放数字信号的，能够记录一个压缩的高效，包装的数字信号（170-173）和它们的复制抑制的方法和装置。 输入分组信号的3加入（图9）与时间戳指示该分组的到达的相对时间，和数字信息与所添加的时间戳的分组信号在降低的间隔（记录图8（） ）之间存在。 再现，数据包间隔调整电路（图11）中恢复雅舞蹈原始数据包间隔与所述时间戳，然后时间戳改变电路（图9）改变的时间戳中的至少一个比特，然后输出该 数字信息。
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.01 秒)
