公开(公告)号：US5583650A

公开(公告)日：1996-12-10

申请号：US462877

申请日：1995-06-05

申请人： Frank A. Lane ,  Jill M. Boyce ,  Jack S. Fuhrer ,  John G. N. Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael A. Plotnick

发明人： Frank A. Lane ,  Jill M. Boyce ,  Jack S. Fuhrer ,  John G. N. Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael A. Plotnick

IPC分类号： G11B5/008 ,  G11B5/09 ,  G11B15/12 ,  G11B15/18 ,  G11B20/12 ,  G11B27/00 ,  G11B27/30 ,  H04N5/44 ,  H04N5/775 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/93 ,  H04N5/945 ,  H04N7/015 ,  H04N7/26 ,  H04N7/52 ,  H04N9/78 ,  H04N9/79 ,  H04N9/804 ,  H04N9/806 ,  H04N9/82 ,  H04N9/888 ,  H04N19/89 ,  H04N5/76 ,  H04N5/78

CPC分类号： H04N21/4147 ,  G11B15/1875 ,  G11B20/1207 ,  G11B27/005 ,  G11B27/3027 ,  H04N19/37 ,  H04N19/89 ,  H04N21/4334 ,  H04N5/4401 ,  H04N5/93 ,  H04N7/015 ,  H04N7/52 ,  H04N9/78 ,  H04N9/8042 ,  H04N9/8047 ,  G11B15/125 ,  G11B2220/90 ,  G11B5/0086 ,  G11B5/09 ,  H04N5/775 ,  H04N5/78263 ,  H04N5/78266 ,  H04N5/783 ,  H04N5/945 ,  H04N9/7921 ,  H04N9/8066 ,  H04N9/8227 ,  H04N9/888

摘要： Methods of operating a digital video recording and playback device, such as a video tape recorder, to arrange trick play data into one or more groups, to generate error correction bits for each group of trick play data, e.g., a group of trick play data blocks, and to correct the data after being read back using the error correction bits is disclosed. The trick play data blocks are made to be smaller than normal play data blocks with multiple trick play data blocks being equal in size to a single normal play data block. By making a group of trick play data blocks equal in size to a single normal play data block, the group of trick play data blocks may be processed as a unit by the same error correction circuitry and in the same manner used to process individual normal play data blocks. In accordance with one embodiment, the error correction bits for a group of trick play data blocks are calculated treating the data in the group of trick play data blocks as a single unit. The error correction bits are appended to the last data block in the group of trick play data blocks. During trick play operation the trick play data blocks are read back and combined according to trick play data groups. Each group of trick play blocks is then processed using the same error correction circuitry used to process a normal play data block.

摘要翻译： 操作诸如磁带录像机的数字视频记录和回放设备的方法来将特技播放数据排列到一个或多个组中，以为每组特技播放数据生成纠错位，例如一组特技播放数据 块，并且在使用误差校正位读取之后校正数据被公开。 使特技播放数据块小于具有与单个正常播放数据块大小相等的多个特技播放数据块的普通播放数据块。 通过使一组特技播放数据块的大小与单个正常播放数据块相等，该特技播放数据块组可以通过相同的纠错电路以与用于处理各个正常播放相同的方式作为一个单元来处理 数据块。 根据一个实施例，计算一组特技播放数据块的纠错位，将特技播放数据块组中的数据作为一个单位处理。 误差校正位附加到特技播放数据块组中的最后一个数据块。 在特技播放操作期间，根据特技播放数据组读取并组合特技播放数据块。 然后使用用于处理正常播放数据块的相同的纠错电路处理每组特技播放块。

公开(公告)号：US5623344A

公开(公告)日：1997-04-22

申请号：US293639

申请日：1994-08-19

申请人： Frank A. Lane ,  Joseph E. Augenbraun ,  Jill M. Boyce ,  Jack S. Fuhrer ,  John G. N. Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael A. Plotnick

发明人： Frank A. Lane ,  Joseph E. Augenbraun ,  Jill M. Boyce ,  Jack S. Fuhrer ,  John G. N. Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael A. Plotnick

IPC分类号： G11B5/008 ,  G11B5/09 ,  G11B15/12 ,  G11B15/18 ,  G11B20/12 ,  G11B27/00 ,  G11B27/30 ,  H04N5/44 ,  H04N5/775 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/93 ,  H04N5/945 ,  H04N7/015 ,  H04N7/26 ,  H04N7/52 ,  H04N9/78 ,  H04N9/79 ,  H04N9/804 ,  H04N9/806 ,  H04N9/82 ,  H04N9/888 ,  H04N19/89 ,  H04N5/76 ,  H04N5/78

CPC分类号： G11B15/1875 ,  G11B20/1207 ,  G11B27/005 ,  G11B27/3027 ,  H04N19/37 ,  H04N19/89 ,  H04N21/4147 ,  H04N21/4334 ,  H04N5/4401 ,  H04N5/93 ,  H04N7/015 ,  H04N7/52 ,  H04N9/78 ,  H04N9/8042 ,  H04N9/8047 ,  G11B15/125 ,  G11B2220/90 ,  G11B5/0086 ,  G11B5/09 ,  H04N5/775 ,  H04N5/78263 ,  H04N5/78266 ,  H04N5/783 ,  H04N5/945 ,  H04N9/7921 ,  H04N9/8066 ,  H04N9/8227 ,  H04N9/888

摘要： A digital video tape recorder ("VTR") that selects data useful for generating images during trick playback operation and records the data in trick play tape segments arranged on a tape to form fast scan tracks and multi-speed playback tracks. Each fast scan track comprises trick play tape segments located on a diagonal, relative to the length of the tape, of the same angle as the angle at which the heads of a VTR are expected to pass over the tape during trick play operation at a specific speed and direction of operation. Each multi-speed playback track comprises a plurality of trick play tape segments arranged parallel to the length of the tape. Data which is used for at least one mode of trick play operation is recorded in each trick play tape segment. Each fast scan track and multi-speed track crosses multiple normal play tracks. During playback at a wide variety of speeds and directions, the heads pass over enough trick play segments of the multi-speed playback track to generate recognizable images during trick play operation. Data is recorded in each trick play segment in a manner that optimizes the amount of data that can be routinely recovered during trick playback operation despite tracking errors.

摘要翻译： 一种数字录像机（“VTR”），其选择在特技播放操作期间生成图像的数据，并将数据记录在布置在磁带上的特技播放磁带段中以形成快速扫描轨道和多速重放轨道。 每个快速扫描轨道包括相对于磁带长度位于对角线上的特技播放磁带段，其角度与在特定播放操作期间期望VTR的磁头经过磁带的角度相同的角度 速度和操作方向。 每个多速播放轨道包括平行于磁带的长度布置的多个特技播放磁带片段。 用于至少一种特技播放操作模式的数据被记录在每个特技播放磁带段中。 每个快速扫描轨道和多速度轨道穿过多个正常播放轨道。 在以各种各样的速度和方向播放期间，头部通过多速播放轨道的足够的特技播放段，以在特技播放操作期间产生可识别的图像。 数据被记录在每个特技播放段中，以尽可能优化在特技重放操作期间常规恢复的数据量，尽管跟踪错误。

公开(公告)号：US5729649A

公开(公告)日：1998-03-17

申请号：US716784

申请日：1996-09-05

申请人： Frank Anton Lane ,  Joseph Ellis Augenbraun ,  Jill MacDonald Boyce ,  Jack Selig Fuhrer ,  John Goodchilde Norie Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael Allen Plotnick

发明人： Frank Anton Lane ,  Joseph Ellis Augenbraun ,  Jill MacDonald Boyce ,  Jack Selig Fuhrer ,  John Goodchilde Norie Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael Allen Plotnick

IPC分类号： G11B5/008 ,  G11B5/09 ,  G11B15/12 ,  G11B15/18 ,  G11B20/12 ,  G11B27/00 ,  G11B27/30 ,  H04N5/44 ,  H04N5/775 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/93 ,  H04N5/945 ,  H04N7/015 ,  H04N7/26 ,  H04N7/52 ,  H04N9/78 ,  H04N9/79 ,  H04N9/804 ,  H04N9/806 ,  H04N9/82 ,  H04N9/888 ,  H04N19/89 ,  H04N5/91

CPC分类号： G11B15/1875 ,  G11B20/1207 ,  G11B27/005 ,  G11B27/3027 ,  H04N19/37 ,  H04N19/89 ,  H04N21/4147 ,  H04N21/4334 ,  H04N5/4401 ,  H04N5/93 ,  H04N7/015 ,  H04N7/52 ,  H04N9/78 ,  H04N9/8042 ,  H04N9/8047 ,  G11B15/125 ,  G11B2220/90 ,  G11B5/0086 ,  G11B5/09 ,  H04N5/775 ,  H04N5/78263 ,  H04N5/78266 ,  H04N5/783 ,  H04N5/945 ,  H04N9/7921 ,  H04N9/8066 ,  H04N9/8227 ,  H04N9/888

摘要： A digital video tape recorder ("VTR") that selects data useful for generating images during trick playback operation and records the data in trick play tape segments arranged on a tape to form fast scan tracks and multi-speed playback tracks. Each fast scan track comprises trick play tape segments located on a diagonal, relative to the length of the tape, of the same angle as the angle at which the heads of a VTR are expected to pass over the tape during trick play operation at a specific speed and direction of operation. Each multi-speed playback track comprises a plurality of trick play tape segments arranged parallel to the length of the tape. Data which is used for at least one mode of trick play operation is recorded in each trick play tape segment. Each fast scan track and multi-speed track crosses multiple normal play tracks. During playback at a wide variety of speeds and directions, the heads pass over enough trick play segments of the multi-speed playback track to generate recognizable images during trick play operation. Data is recorded in each trick play segment in a manner that optimizes the amount of data that can be routinely recovered during trick playback operation despite tracking errors.

摘要翻译： 一种数字录像机（“VTR”），其选择在特技播放操作期间生成图像的数据，并将数据记录在布置在磁带上的特技播放磁带段中以形成快速扫描轨道和多速重放轨道。 每个快速扫描轨道包括相对于磁带长度位于对角线上的特技播放磁带段，其角度与在特定播放操作期间期望VTR的磁头经过磁带的角度相同的角度 速度和操作方向。 每个多速播放轨道包括平行于磁带的长度布置的多个特技播放磁带片段。 用于至少一种特技播放操作模式的数据被记录在每个特技播放磁带段中。 每个快速扫描轨道和多速度轨道穿过多个正常播放轨道。 在以各种各样的速度和方向播放期间，头部通过多速播放轨道的足够的特技播放段，以在特技播放操作期间产生可识别的图像。 数据被记录在每个特技播放段中，以尽可能优化在特技重放操作期间常规恢复的数据量，尽管跟踪错误。

公开(公告)号：US5687275A

公开(公告)日：1997-11-11

申请号：US463336

申请日：1995-06-05

申请人： Frank Anton Lane ,  Joseph Ellis Augenbraun ,  Jill MacDonald Boyce ,  Jack Selig Fuhrer ,  John Goodchilde Norie Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael Allen Plotnick

发明人： Frank Anton Lane ,  Joseph Ellis Augenbraun ,  Jill MacDonald Boyce ,  Jack Selig Fuhrer ,  John Goodchilde Norie Henderson ,  Katsuo Mohri ,  Masafumi Nakamura ,  Takaharu Noguchi ,  Hiroo Okamoto ,  Masuo Oku ,  Michael Allen Plotnick

IPC分类号： G11B5/008 ,  G11B5/09 ,  G11B15/12 ,  G11B15/18 ,  G11B20/12 ,  G11B27/00 ,  G11B27/30 ,  H04N5/44 ,  H04N5/775 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/93 ,  H04N5/945 ,  H04N7/015 ,  H04N7/26 ,  H04N7/52 ,  H04N9/78 ,  H04N9/79 ,  H04N9/804 ,  H04N9/806 ,  H04N9/82 ,  H04N9/888 ,  H04N19/89 ,  H04N5/91

CPC分类号： G11B15/1875 ,  G11B20/1207 ,  G11B27/005 ,  G11B27/3027 ,  H04N19/37 ,  H04N19/89 ,  H04N21/4147 ,  H04N21/4334 ,  H04N5/4401 ,  H04N5/93 ,  H04N7/015 ,  H04N7/52 ,  H04N9/78 ,  H04N9/8042 ,  H04N9/8047 ,  G11B15/125 ,  G11B2220/90 ,  G11B5/0086 ,  G11B5/09 ,  H04N5/775 ,  H04N5/78263 ,  H04N5/78266 ,  H04N5/783 ,  H04N5/945 ,  H04N9/7921 ,  H04N9/8066 ,  H04N9/8227 ,  H04N9/888

摘要： Methods of operating a digital video recording and playback device to identify trick play data, e.g., data that is intended for use during trick play modes of video playback device operation such as fast forward and reverse, by recording headers containing specific trick play information along with the trick play data are described. In one embodiment, the recording of headers which identify data as data intended for use during trick play as opposed to normal play operation is described. In addition to identifying data recorded data as normal play or trick play data headers associated with recorded data may identify the speed and direction of video tape recorder operation during which the specific data associated with the header is intended to be displayed at. When a data block includes data packets, a header may be used to identify various ones of the data packets as being for use during one mode of trick play operation, e.g., a first fast forward speed of operation, and other packets in the same data block as being for use during a second mode of trick play operation.

摘要翻译： 操作数字视频记录和回放设备以识别特技播放数据的方法，例如，通过记录包含特定特技播放信息的标题以及包含特定的特技播放信息的标题，以及诸如快进和反向的视频播放设备操作的特技播放模式期间使用的数据，以及 描述特技播放数据。 在一个实施例中，描述了与正常播放操作相反，标识数据作为要在特技播放期间使用的数据的标题的记录。 除了将数据记录的数据识别为正常播放或与记录的数据相关联的特技播放数据头可以识别录像机操作的速度和方向，在此期间，与标题相关联的特定数据将被显示在其上。 当数据块包括数据分组时，可以使用报头来将各种数据分组识别为在特技播放操作的一种模式期间使用，例如，第一快进操作速度和相同数据中的其他分组 作为在特技播放操作的第二模式期间使用的块。

公开(公告)号：US5778140A

公开(公告)日：1998-07-07

申请号：US813339

申请日：1997-03-07

申请人： Hiroo Okamoto ,  Masuo Oku ,  Takaharu Noguchi ,  Takao Arai

发明人： Hiroo Okamoto ,  Masuo Oku ,  Takaharu Noguchi ,  Takao Arai

IPC分类号： H04N5/76 ,  G06F12/14 ,  G11B20/00 ,  H04N5/91 ,  H04N5/913 ,  H04N5/92 ,  G11B23/28 ,  H04N5/928

CPC分类号： G11B20/00086 ,  H04N5/913 ,  H04N5/9206 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328

摘要： In a reproducing apparatus, a generator circuit for adding copy information during the vertical blanking period of a reproduced video signal output is provided, and copy information in compliance with copy information contained in the reproduced signal is added and delivered. In a recording apparatus, a detection circuit for detecting copy information in an inputted video signal is provided, and permission/inhibition of copy is controlled on the basis of the detected copy information and when copy is permitted, necessary copy information is generated and added to a recording signal.

摘要翻译： 在再现装置中，提供了用于在再现的视频信号输出的垂直消隐周期期间添加复制信息的发生器电路，并且添加并传送符合再现信号中包含的复制信息的复制信息。 在记录装置中，提供了用于检测输入视频信号中的复制信息的检测电路，并且基于检测到的复制信息来控制副本的许可/禁止，并且当允许复制时，生成必要的复制信息并将其添加到 记录信号。

公开(公告)号：US5627655A

公开(公告)日：1997-05-06

申请号：US331269

申请日：1994-10-28

申请人： Hiroo Okamoto ,  Masuo Oku ,  Takaharu Noguchi ,  Takao Arai

发明人： Hiroo Okamoto ,  Masuo Oku ,  Takaharu Noguchi ,  Takao Arai

IPC分类号： H04N5/76 ,  G06F12/14 ,  G11B20/00 ,  H04N5/91 ,  H04N5/913 ,  H04N5/92 ,  G11B23/28

CPC分类号： G11B20/00086 ,  H04N5/913 ,  H04N5/9206 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328

摘要： In a reproducing apparatus, a generator circuit for adding copy information during the vertical blanking period of a reproduced video signal output is provided, and copy information in compliance with copy information contained in the reproduced signal is added and delivered. In a recording apparatus, a detection circuit for detecting copy information in an inputted video signal is provided, and permission/inhibition of copy is controlled on the basis of the detected copy information and when copy is permitted, necessary copy information is generated and added to a recording signal.

摘要翻译： 在再现装置中，提供了用于在再现的视频信号输出的垂直消隐周期期间添加复制信息的发生器电路，并且添加并传送符合再现信号中包含的复制信息的复制信息。 在记录装置中，提供了用于检测输入视频信号中的复制信息的检测电路，并且基于检测到的复制信息来控制副本的许可/禁止，并且当允许复制时，生成必要的复制信息并将其添加到 记录信号。

公开(公告)号：US4843493A

公开(公告)日：1989-06-27

申请号：US838958

申请日：1986-03-12

申请人： Takashi Furuhata ,  Yasufumi Yumde ,  Fujio Okamura ,  Takaharu Noguchi ,  Toshifumi Shibuya ,  Katsuo Mohri ,  Takao Arai ,  Toshimichi Terada

发明人： Takashi Furuhata ,  Yasufumi Yumde ,  Fujio Okamura ,  Takaharu Noguchi ,  Toshifumi Shibuya ,  Katsuo Mohri ,  Takao Arai ,  Toshimichi Terada

IPC分类号： G11B15/467 ,  G11B15/473

CPC分类号： G11B15/4672 ,  G11B15/4678 ,  G11B15/4738

摘要： A method of producing a tracking control signal in a rotary head type magnetic recording and reproducing apparatus and a rotary head type magnetic recording and reproducing apparatus capable of a proper tracking by the use of the tracking control signal. First and second tracking signals are recorded on local portions of each odd-numbered track and the first tracking signal and a third tracking signal are recorded on local portions of each even-numbered track in such a manner that the second tracking signals on two odd-numbered track adjacent to any one even-numbered track are not overlapped with each other and the third tracking signals on two even-numbered tracks adjacent to any one odd-numbered track are not overlapped with each other when viewed in a direction perpendicular to the longitudinal direction of the tracks; upon scanning of a track crosstalk signals are detected from two adjacent track simultaneously with reproduction of the first and second or third tracking signals; and the detected crosstalk signals are compared by the use of timing of the reproduction of the first tracking signal for each track thereby producing a tracking control signal. The second tracking signal may have a frequency equal to that of the third tracking frequency.

摘要翻译： 一种在旋转磁头式磁记录和再现装置中产生跟踪控制信号的方法以及能够通过使用跟踪控制信号进行适当跟踪的旋转磁头型磁记录和再现装置。 第一跟踪信号和第二跟踪信号被记录在每个奇数号的轨道的本地部分上，并且第一跟踪信号和第三跟踪信号被记录在每个偶数轨迹的本地部分上， 与任何一个偶数编号的轨道相邻的编号轨道彼此不重叠，并且在与任何一个奇数编号的轨道相邻的两个偶数轨道上的第三跟踪信号在垂直于纵向的方向上观察时不彼此重叠 轨道方向; 在轨道的扫描时，与第一和第二或第三跟踪信号的再现同时从两个相邻轨道检测串扰信号; 并且通过使用每个轨道的第一跟踪信号的再现的定时来比较检测到的串扰信号，从而产生跟踪控制信号。 第二跟踪信号可以具有等于第三跟踪频率的频率。

公开(公告)号：US08270812B2

公开(公告)日：2012-09-18

申请号：US12219251

申请日：2008-07-18

申请人： Hiroo Okamoto ,  Kyoichi Hosokawa ,  Hitoaki Owashi ,  Hiroaki Tachibana ,  Takaharu Noguchi

发明人： Hiroo Okamoto ,  Kyoichi Hosokawa ,  Hitoaki Owashi ,  Hiroaki Tachibana ,  Takaharu Noguchi

IPC分类号： H04N9/88

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.

公开(公告)号：US20100027962A1

公开(公告)日：2010-02-04

申请号：US11936852

申请日：2007-11-08

申请人： Hiroo OKAMOTO ,  Kyoichi Hosokawa ,  Hitoaki Owashi ,  Hiroaki Tachibana ,  Takaharu Noguchi

发明人： Hiroo OKAMOTO ,  Kyoichi Hosokawa ,  Hitoaki Owashi ,  Hiroaki Tachibana ,  Takaharu Noguchi

IPC分类号： H04N5/91

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生。 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，并且 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：US20090252478A1

公开(公告)日：2009-10-08

申请号：US12401182

申请日：2009-03-10

申请人： Hitoaki Owashi ,  Hiroo Okamoto ,  Kyoichi Hosokawa ,  Takaharu Noguchi

发明人： Hitoaki Owashi ,  Hiroo Okamoto ,  Kyoichi Hosokawa ,  Takaharu Noguchi

IPC分类号： H04N5/91

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 and inhibiting a copy thereof. An input packet signal is added 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 therebetween. In reproducing, a packet interval adjusting circuit restores the original packet intervals in accordance with the time stamps, and then a time stamp change circuit changes at least one bit of the time stamp and thereafter outputs the digital information.

摘要翻译： 提供一种用于接收和/或再现数字信号的方法和装置，其能够有效地记录压缩的分组数字信号并禁止其复制。 在输入分组信号中加上表示分组到达的相对时间的时间标记，并且以减小的间隔记录具有添加的时间戳的数字信息的分组信号。 在再现时，分组间隔调整电路根据时间戳恢复原始分组间隔，然后时间戳变化电路改变时间标记的至少一位，然后输出数字信息。