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21. 发明授权

US6011896A Method of recording various different video signals onto magnetic tape 失效
标题翻译：将各种不同的视频信号记录到磁带上的方法
公开(公告)号：US6011896A
公开(公告)日：2000-01-04
申请号：US317825
申请日：1999-05-25
申请人： Seiji Higurashi , Takeo Ohishi , Mitsuo Harumatsu
发明人： Seiji Higurashi , Takeo Ohishi , Mitsuo Harumatsu
IPC分类号： H04N5/91 , G11B5/008 , G11B15/12 , G11B15/18 , G11B20/12 , G11B27/032 , G11B27/036 , G11B27/30 , H04N5/782 , H04N5/7826 , H04N5/92 , H04N9/797 , H04N9/80 , H04N9/804 , H04N19/423 , H04N19/48 , H04N19/60 , H04N19/65 , H04N19/70 , H04N5/76 , H04N7/08
CPC分类号： H04N5/78263 , G11B15/125 , G11B15/1875 , G11B27/036 , G11B27/3027 , G11B5/0086 , G11B2220/216 , G11B2220/90 , G11B27/032 , G11B5/00878 , H04N9/7973 , H04N9/804
摘要： A method of recording video data and the accompanied sound data capable of editing the video data and sound data track by track without editing gaps is disclosed. The track format includes a first block of tracks for video data and a second block of tracks for sound data for a predetermined number of frames. Another method of selectively recording one of a plurality of kinds of video data having different amounts of data per frame or field and the accompanied sound data (NTSC and PAL for example) is provided. In this method, the video data and sound data are recorded with a recording and editing unit which is a determined by a common multiple of the selected one of kinds of video data among the amounts of data of the different kinds of video data. In NTSC method the video and sound data are receded every six frames or fields and in the PAL method, the video and sound data are recorded every 5 frames or fields, so that a track pattern having T=24 tracks including P tracks for sound data and T-P tracks for video data are recurrently recorded. The video and sound data are recorded track by track, so that video and sound data can be edited tack by track.
摘要翻译：公开了一种记录视频数据的方法和能够编辑视频数据和声音数据轨道的陪伴声音数据，而不编辑间隙。轨道格式包括用于视频数据的第一磁道块和用于预定数量帧的声音数据的第二磁道块。提供了选择性地记录每帧或场中具有不同数据量的多种视频数据之一和伴随声音数据（例如NTSC和PAL）的另一种方法。在这种方法中，视频数据和声音数据被记录在记录和编辑单元中，该记录和编辑单元是由不同种类的视频数据的数据量之中的所选视频数据中所选择的一种视频数据的公倍数确定的。在NTSC制方法中，视频和声音数据每六帧或场减去，PAL制式中，视频和声音数据每5帧或场记录一次，使得具有T = 24个轨道的轨道图案包括用于声音数据的P轨道并且用于视频数据的TP轨道被重复记录。视频和声音数据按轨道记录，从而可以通过轨道编辑视频和声音数据。

22. 发明授权

US5933568A Method of recording and reproducing digital signals in different signal transmission modes and recording medium therefor 失效
标题翻译：以不同的信号传输模式记录和再现数字信号的方法及其记录介质
公开(公告)号：US5933568A
公开(公告)日：1999-08-03
申请号：US611165
申请日：1996-03-05
申请人： Seiji Higurashi , Takeo Ohishi , Mitsuo Harumatsu
发明人： Seiji Higurashi , Takeo Ohishi , Mitsuo Harumatsu
IPC分类号： G11B20/12 , H04N5/7826 , H04N5/783 , H04N9/804 , H04N9/82 , H04N5/91 , G11B5/09
CPC分类号： H04N9/8042 , G11B20/12 , H04N5/78266 , H04N5/783 , H04N9/8227
摘要： A method for recording and reproducing digital signals in and from a recording medium is provided. The digital signals are to be recorded in any given k-th mode of N-kind digital signal transmission modes of mutually different packet sizes. Digital signals of p.sub.k packets with additional data are recorded on tracks of the recording medium in unit of d.sub.k data blocks. Data blocks of a multiple of the least common multiple R of the data block recording units of the respective digital signals of the N-kind digital signal transmission modes are recorded in each track. The data blocks recorded in the recording medium are reproduced. Here, N is a two or more natural number, k is 1 to N, and p.sub.k and d.sub.k are a natural number. There is a case where the digital signals are to be recorded in first and second digital signal transmission modes of two different packet sizes. In this case, in the first digital signal transmission mode, the digital signals of one packet in unit of two data blocks with the additional data are recorded. Further, in the second digital signal transmission mode, the digital signals of two packets in unit of three data blocks with the additional data are recorded. And, the data blocks of a multiple of six are recorded in each track on the recording medium.
摘要翻译：提供了一种用于在记录介质中记录和再现数字信号的方法。数字信号将以相互不同的分组大小的N种数字信号传输模式的任何给定的第k种模式进行记录。具有附加数据的pk分组的数字信号以dk数据块为单位记录在记录介质的轨道上。 N个数字信号发送模式的各个数字信号的数据块记录单元的最小公倍数R的倍数的数据块被记录在每个轨道中。记录在记录介质中的数据块被再现。这里，N是两个以上的自然数，k是1〜N，pk和dk是自然数。存在以两种不同分组大小的第一和第二数字信号传输模式记录数字信号的情况。在这种情况下，在第一数字信号发送模式中，以具有附加数据的两个数据块为单位的一个分组的数字信号被记录。此外，在第二数字信号传输模式中，记录具有附加数据的三个数据块单位的两个分组的数字信号。并且，六个倍数的数据块被记录在记录介质上的每个轨道中。

23. 发明授权

US5912780A Magnetic recording and reproducing apparatus 失效
标题翻译：磁记录和再现设备
公开(公告)号：US5912780A
公开(公告)日：1999-06-15
申请号：US787771
申请日：1997-01-28
申请人： Yasuaki Yamada , Takeo Ohishi
发明人： Yasuaki Yamada , Takeo Ohishi
IPC分类号： H04N5/783 , G11B5/09 , G11B5/53 , G11B15/12 , G11B15/18 , G11B15/14
CPC分类号： G11B5/534 , G11B15/125 , G11B15/1875
摘要： A magnetic recording and reproducing apparatus has a rotary magnetic head mechanism having at least a first rotary magnetic head with a magnetic gap set to a azimuth angle less than 90 degrees in a clockwise direction with respect to a width direction of recorded traces and a second rotary magnetic head with a magnetic gap set to a azimuth angle less than 90 degrees in a counterclockwise direction with respect to the width direction. The traces are formed on a magnetic tape moving in a forward direction at a speed in accordance with a rotational locus of the heads moving and obliquely crossing a travel direction of the tape. The first output signals obtained by the first head are selected in the case where a rotational locus surface of the heads changes in a reproduction operation within an angular range less than 180 degrees in a clockwise direction with respect to the traces formed on the tape. On the other hand, the second output signals obtained by the second head are selected in the case where the rotational locus surface of the heads changes in the reproduction operation within an angular range less than 180 degrees in a counterclockwise direction with respect to the direction of the traces formed on the tape. Reproduction is executed in response to the selected first or second output signals while the tape is being moved in the forward direction or a reverse direction at a speed higher than that while recording.
摘要翻译：一种磁记录和再现装置具有旋转磁头机构，该旋转磁头机构具有至少一个第一旋转磁头，其具有相对于所记录的轨迹的宽度方向沿顺时针方向设置为小于90度的方位角的磁隙，以及第二旋转具有相对于宽度方向在逆时针方向上设置为小于90度的方位角的磁性间隙的磁头。这些迹线形成在磁带上，该磁带以沿着磁带的移动和倾斜地穿过磁带的行进方向的磁头的旋转轨迹的速度沿向前方向移动。在头部的旋转轨迹表面相对于形成在磁带上的迹线沿顺时针方向在小于180度的角度范围内变化的情况下，选择由第一磁头获得的第一输出信号。另一方面，在第一磁头中获得的第二输出信号在再现操作中的旋转轨迹表面相对于方向的逆时针方向在小于180度的角度范围内变化的情况下被选择磁带上形成的痕迹。当磁带以比记录时高的速度在正向或反方向移动时，响应于所选择的第一或第二输出信号执行再生。

24. 发明授权

US5802081A Digital information modulating apparatus 失效
标题翻译：数字信息调制装置
公开(公告)号：US5802081A
公开(公告)日：1998-09-01
申请号：US495071
申请日：1995-06-27
申请人： Takeo Ohishi
发明人： Takeo Ohishi
IPC分类号： H04N5/922 , G11B15/46 , G11B15/467 , G11B20/12 , G11B20/14 , G11B27/30 , H04L27/34 , H04N5/92 , G11B20/08
CPC分类号： G11B15/463 , G11B15/4678 , G11B20/1426 , G11B27/3027
摘要： Information is divided into first blocks each having m bits, and n bit or bits in each of S different states are added to a head of each of the first blocks to change the first block into S second blocks each having m+n bits, where m and n denote predetermined natural numbers and S denotes a predetermined natural number equal to or smaller than 2.sup.n. Each of the S second blocks is pre-coded into S pre-coded information blocks respectively. One of the S pre-coded information blocks is selected as a modulation-resultant information signal in response to error signals related to the S pre-coded information blocks respectively. The modulation-resultant information signal has q different notch frequencies. The S pre-coded information blocks are converted into S amplitude signals representing amplitude values respectively. A set of q first waveform signals and a set of q second waveform signals are generated. The q first waveform signals represent waveforms related to the q notch frequencies respectively. The q second waveform signals are different in phase from the q first waveform signals by 90.degree. respectively. Each of the S amplitude signals and the 2q waveform signals are multiplied into 2q multiplication-resultant signals. The 2q multiplication-resultant signals are added and accumulated into 2q addition-resultant signals respectively with respect to each of the S pre-coded information blocks. An error signal is generated in response to the 2q addition-resultant signals, and thereby the S error signals are generated which relate to the S pre-coded information blocks respectively.
摘要翻译：信息被分成具有m位的第一块，并且在S个不同状态中的每一个中的n位或比特被添加到每个第一块的头部，以将第一块改变为具有m + n位的S个第二块，其中 m和n表示预定的自然数，S表示等于或小于2n的预定自然数。每个S个第二块分别被预编码为S个预编码信息块。响应于与S个预编码信息块相关的错误信号，选择S个预编码信息块中的一个作为调制结果信息信号。调制结果信息信号具有不同的陷波频率。 S个预编码信息块被分别转换成表示振幅值的S个振幅信号。产生一组q个第一波形信号和一组q个第二波形信号。 q个第一波形信号分别表示与q个陷波频率相关的波形。 q个第二波形信号的相位与q个第一波形信号分别相差90°。 S幅度信号和2q波形信号中的每一个被乘以2q个乘积信号。相对于每个S个预编码信息块，分别将2q个乘积信号相加并累加到2q个相加信号中。响应于2q相加信号产生误差信号，从而分别产生与S个预编码信息块有关的S个误差信号。

25. 发明授权

US07146507B2 Information recording apparatus having function of encrypting information 有权
公开(公告)号：US07146507B2
公开(公告)日：2006-12-05
申请号：US10196152
申请日：2002-07-17
申请人： Tomoyuki Shindo , Takeo Ohishi
发明人： Tomoyuki Shindo , Takeo Ohishi
IPC分类号： G06F11/30 , G06F12/14 , H06F9/32 , H04N7/167
CPC分类号： G06F21/10 , G06F21/6209 , G06F21/78 , G06F2221/0797 , G06F2221/2107 , G11B20/00086 , G11B20/0021 , G11B20/00507 , H04N5/781 , H04N5/913 , H04N9/8042 , H04N21/4334 , H04N21/4408 , H04N2005/91364
摘要： First information is divided into equal-size information pieces. Serial numbers are assigned to the information pieces, respectively. An encryption key is generated from a base number and a variable number varying for each of the information pieces. The base number is common to an information range managed by one licence. The first information is encrypted on a block-by-block basis in response to the encryption key to get encryption-resultant information for every predetermined minimum information unit smaller than the sizes of the information pieces. The encryption-resultant information is recorded on a recording medium. A determination is made as to logical addresses of heads of portions of the recording medium which are loaded with portions of the encryption-resultant information corresponding to the respective information pieces. Second information representing a correspondence relation between the determined logical addresses and the assigned serial numbers is recorded on the recording medium.

26. 发明授权

US06334024B1 Helical scan data recording apparatus and a helical scan data reproducing apparatus 失效
标题翻译：螺旋扫描数据记录装置和螺旋扫描数据再现装置
公开(公告)号：US06334024B1
公开(公告)日：2001-12-25
申请号：US08754530
申请日：1996-11-21
申请人： Takeo Ohishi , Mitsuo Harumatsu , Seiji Higurashi
发明人： Takeo Ohishi , Mitsuo Harumatsu , Seiji Higurashi
IPC分类号： H04N591
CPC分类号： G11B20/1809 , G11B27/032 , G11B27/3027 , G11B27/3063 , G11B2220/90
摘要： A data recording apparatus is disclosed comprising memory circuits for storing video and sound data, and an error check code generation circuit for generating check codes for the data. The check code data is stored in a data block including the data and the check code data generated in accordance with the data. The apparatus includes an interleaving portion for reading the data and check code data for every stored data block and interleaving a predetermined number of the data blocks to provide an editing unit. The apparatus further includes a recording portion for recording the interleaved data blocks on a magnetic tape through helical scanning of every editing unit. The data may include video data and corresponding sound data. The video data is recorded on the magnetic tape on consecutive (t−p) tracks and the sound data is recorded on the magnetic tape on consecutive p tracks. One of a plurality of interleaving patterns is selected, and data indicative of the interleaving pattern is also recorded at a sub-code area on each track. A data reproducing apparatus including a de-interleaving portion for restoring the interleaved data block is also disclosed.
摘要翻译：公开了一种数据记录装置，包括用于存储视频和声音数据的存储电路，以及用于产生数据的检验码的错误校验码产生电路。校验码数据被存储在包括根据数据生成的数据和校验码数据的数据块中。该装置包括用于读取数据并检查每个存储的数据块的代码数据并交织预定数量的数据块以提供编辑单元的交织部分。该装置还包括记录部分，用于通过每个编辑单元的螺旋扫描将交错的数据块记录在磁带上。数据可以包括视频数据和对应的声音数据。视频数据在连续的（t-p）磁道上记录在磁带上，声音数据在连续的p磁道上记录在磁带上。选择多个交织模式中的一个，并且指示交织模式的数据也被记录在每个轨道上的子代码区域。还公开了一种包括用于恢复交错数据块的解交织部分的数据再现装置。

27. 发明授权

US06288857B1 Digital signal recording apparatus, and related method 有权
公开(公告)号：US06288857B1
公开(公告)日：2001-09-11
申请号：US09761750
申请日：2001-01-18
申请人： Seiji Higurashi , Yoichi Zenno , Takeo Ohishi
发明人： Seiji Higurashi , Yoichi Zenno , Takeo Ohishi
IPC分类号： G11B509
摘要： A digital signal recording apparatus includes an amble generator for generating an amble signal representing a bit-sequence amble pattern. The bit-sequence amble patter can be detected and reproduced by a partial-response detection system “PR(1, 0, −1)” as a detected amble pattern having a period of state inversions which is shorter than a period of state inversions in a detected amble pattern corresponding to a recorded amble pattern of alternation of “1” and “0”. The amble signal generated by the amble generator and a first digital information signal are combined into a second digital information signal on a time sharing basis. The second digital information signal is recorded on a magnetic recording medium. For example, the bit-sequence amble pattern represented by the amble signal has repetition of six bits of “111000”.

28. 发明授权

US6108148A Method, device, and medium for recording digital signal 失效
标题翻译：用于记录数字信号的方法，设备和介质
公开(公告)号：US6108148A
公开(公告)日：2000-08-22
申请号：US913998
申请日：1997-09-29
申请人： Seiji Higurashi , Takeo Ohishi , Mitsuo Harumatsu
发明人： Seiji Higurashi , Takeo Ohishi , Mitsuo Harumatsu
IPC分类号： G11B15/087 , G11B15/18 , G11B15/467 , G11B20/10 , G11B20/12 , G11B27/00 , G11B27/30 , G11B27/32 , H04N5/7826 , H04N5/783 , H04N5/92 , H04N9/804 , H04N9/82 , G11B5/02
CPC分类号： G11B15/087 , G11B15/1875 , G11B20/10 , G11B20/10527 , G11B20/1208 , G11B27/005 , G11B27/3027 , G11B27/3063 , G11B27/324 , H04N5/783 , H04N9/8042 , G11B15/4673 , H04N5/78263 , H04N9/8227
摘要： A digital signal recording and reproducing method and apparatus that record and reproduce sequentially a normal reproducing digital signal and a multiple kind special reproducing digital signal on and from a tape-like recording medium. The data rate of the normal reproducing digital signal is detected. According to the detected data rate, either of the normal reproducing digital signal or special reproducing digital signal is selected. The selected digital signal is recorded at the predetermined location on a recording medium for recording the special reproducing digital signal. The sequentially recorded digital signal is reproduced, and each reproduced signal is detected either the normal reproducing digital signal or the multiple kind special reproducing digital signal. The digital signal detected as either of the digital signals is outputted separately. A tape-like recording medium having a track pattern having a plurality of tracks on which a normal reproducing digital signal and a multiple kind special reproducing digital signal are recorded sequentially. The track pattern provides a first area recording information showing the predetermined location at which the multiple kind special reproducing digital signal is to be recorded, and a plurality of second areas that are locations shown by information and record either of said normal reproducing digital signal or special reproducing digital signal is selected and recorded, according to the data rate of the normal reproducing digital signal.
摘要翻译： PCT No.PCT / JP96 / 00792 Sec。 371日期：1997年9月29日 102（e）1997年9月29日PCT PCT 1996年3月27日PCT公布。公开号WO96 / 31053 日期1996年10月3日一种数字信号记录和再现方法和装置，其顺序地在带状记录介质上记录和再现正常再现数字信号和多种专用再现数字信号。检测正常再现数字信号的数据速率。根据检测到的数据速率，选择正常再现数字信号或特殊再现数字信号。所选择的数字信号被记录在用于记录特殊重放数字信号的记录介质上的预定位置处。再现顺序记录的数字信号，并且检测每个再现信号是正常再现数字信号还是多种专用再现数字信号。检测为数字信号中的任一个的数字信号被单独输出。具有轨道图案的带状记录介质具有多个轨道，其上依次记录有正常再现数字信号和多种专用再现数字信号。轨道图案提供表示要记录多种特殊再现数字信号的预定位置的第一区域记录信息，以及作为信息显示的位置的多个第二区域，并记录所述正常再现数字信号或特殊的根据正常再现数字信号的数据速率来选择和记录再现数字信号。

29. 发明授权

US6097876A Magnetic recording and reproducing apparatus for digital signals transmitted at variable data rate 有权
标题翻译：磁记录和重放装置，用于根据输入数字信号的传输速率自动设定记录介质的行进速度
公开(公告)号：US6097876A
公开(公告)日：2000-08-01
申请号：US246099
申请日：1999-02-08
申请人： Takeo Ohishi , Mitsuo Fujita
发明人： Takeo Ohishi , Mitsuo Fujita
IPC分类号： G11B5/008 , G11B15/18 , G11B15/467 , G11B15/52 , H04N5/7826 , H04N9/79 , H04N9/797 , H04N9/804 , H04N5/91
CPC分类号： G11B15/4673 , G11B15/1875 , G11B5/0086 , H04N9/8042 , G11B15/52 , H04N5/78263 , H04N9/7921 , H04N9/7973
摘要： A first rotational head of a first azimuth angle and a second rotational head of a second azimuth angle are arranged on a rotational drum rotated at a constant rotational speed. Also, input digital signals are processed in a signal recording system to form blocks of digital recording signals, a magnetic tape is moved by a tape driving unit according to an information signal generated in a control unit, and the blocks of digital recording signals and the information signal are recorded on the magnetic tape in a recording operation through the first and second heads alternately tracing the magnetic tape. In a reproducing operation, the signals are read through the first and second heads and are reproduced in a signal reproducing system. When the input digital signals are transmitted at a standard data rate, the magnetic tape is rotated at a first traveling speed in the recording and reproducing operations. When the input digital signals are transmitted at a second data rate equal to 1/N (N is a natural number) the standard data rate, the magnetic tape is rotated at a second traveling speed equal to 1/N the first traveling speed in the recording and reproducing operations. Therefore, the input digital signals can be recorded and reproduced regardless of the data rate of the signals.
摘要翻译：第一方位角的第一旋转头和第二方位角的第二旋转头布置在以恒定旋转速度旋转的旋转滚筒上。此外，输入数字信号在信号记录系统中被处理以形成数字记录信号块，磁带根据在控制单元中产生的信息信号由磁带驱动单元移动，数字记录信号块和信息信号通过第一和第二头部交替地跟踪磁带而在记录操作中被记录在磁带上。在再现操作中，通过第一和第二磁头读取信号，并在信号再现系统中再现。当以标准数据速率发送输入数字信号时，磁带在记录和再现操作中以第一行进速度旋转。当以等于1 / N（N是自然数）的标准数据速率的第二数据速率发送输入数字信号时，磁带以等于1 / N的第二行进速度旋转，第一行进速度在录音和再现操作。因此，无论信号的数据速率如何，都可以记录和再现输入数字信号。

30. 发明授权

US5963703A Method and apparatus for recording and reproducing packet data 失效
标题翻译：用于记录和再现分组数据的方法和装置
公开(公告)号：US5963703A
公开(公告)日：1999-10-05
申请号：US820906
申请日：1997-03-19
申请人： Seiji Higurashi , Takeo Ohishi , Mitsuo Harumatsu
发明人： Seiji Higurashi , Takeo Ohishi , Mitsuo Harumatsu
IPC分类号： H04N5/783 , G11B20/10 , G11B20/12 , G11B20/18 , G11B27/00 , G11B27/034 , G11B27/30 , H04N5/93 , H04N7/52 , H04N9/804 , H04N9/877 , H04N5/91
CPC分类号： H04N21/4341 , G11B20/12 , G11B27/005 , G11B27/034 , G11B27/3027 , G11B27/3036 , H04N19/23 , H04N21/4325 , H04N21/4334 , H04N9/8042 , G11B20/1201 , G11B20/1833 , G11B2220/20 , H04N21/4307 , H04N21/47217 , H04N9/877
摘要： Audio packets are separated from an input stream of packets including audio packets and video packets. The audio packets relate to audio information. The video packets relate to video information. The video packets are separated from the input stream of packets. The separated audio packets are recorded on first tracks among an array of tracks on a recording medium. The first tracks are spaced by equal intervals corresponding to a given number of tracks. The separated video packets are recorded on second tracks among the array of tracks on the recording medium. The second tracks differ from the first tracks. The first tracks are scanned, and the audio packets are reproduced from the first tracks during high-speed playback. An output stream of packets is generated in response to the reproduced audio packets during the high-speed playback.
摘要翻译：音频分组与包括音频分组和视频分组的分组的输入流分离。音频分组涉及音频信息。视频分组与视频信息有关。视频数据包与数据包的输入流分离。分离的音频分组被记录在记录介质上的磁道阵列之间的第一磁道上。第一轨道间隔相当于给定数量的轨道的等间隔。分离的视频分组被记录在记录介质上的磁道阵列中的第二磁道上。第二条轨道与第一条轨道不同。扫描第一个轨道，并且在高速重放期间从第一轨道再现音频分组。在高速播放期间响应于再现的音频分组产生分组的输出流。

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