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1. 发明授权

US5778138A Magnetic recording and reproduction apparatus for preventing fixed pattern noise from appearing in a reproduced image when reproducing at high speed 失效
标题翻译：磁记录和再现装置，用于在高速再现时防止固定图案噪声出现在再现图像中
公开(公告)号：US5778138A
公开(公告)日：1998-07-07
申请号：US653921
申请日：1996-05-22
申请人： Junko Ishimoto , Sadayuki Inoue , Makoto Kumano
发明人： Junko Ishimoto , Sadayuki Inoue , Makoto Kumano
IPC分类号： G11B5/09 , G11B15/18 , G11B15/467 , G11B15/473 , H04N5/7826 , H04N5/783 , H04N9/797 , H04N9/804 , H04N5/91
CPC分类号： G11B15/1875 , G11B15/4671 , H04N5/783 , H04N9/7973 , H04N9/8047
摘要： A magnetic recording and reproduction apparatus wherein the drum motor is controlled so that the rotation number of the drum during playback at the normal speed multiplied by N (N is an integer) changes by a fixed factor to R(1+q/Q) (Q, q are integers satisfying .vertline.q.vertline.
摘要翻译：一种磁记录和再现装置，其中控制鼓电动机，使得以正常速度乘以N（N为整数）的重放期间的鼓的旋转数量以固定因子改变为R（1 + q / Q）（ Q，q是满足| q | <| Q |的整数，假定在正常播放期间滚筒的转数为R rpm。还有一种磁记录和再现装置，其中控制鼓马达，使得以正常速度乘以N（N为整数）的播放期间的滚筒的平均转数通过周期性地改变滚筒的转数而变为约R rpm 并且将正常重放期间的滚筒的旋转数作为R rpm，将R rpm以下的转数与R rpm以上的转速组合。

2. 发明授权

US5384665A Data dividing apparatus 失效
标题翻译：数据分割装置
公开(公告)号：US5384665A
公开(公告)日：1995-01-24
申请号：US20325
申请日：1993-02-19
申请人： Ikuo Ohkuma , Makoto Kumano , Sadayuki Inoue , Ken Onishi , Junko Ishimoto
发明人： Ikuo Ohkuma , Makoto Kumano , Sadayuki Inoue , Ken Onishi , Junko Ishimoto
IPC分类号： G11B27/032 , G11B27/30 , H04N5/7826 , H04N7/26 , H04N7/30 , H04N9/797 , H04N9/804 , G11B5/02 , G11B5/00 , G11B5/09
CPC分类号： H04N9/8047 , G11B27/032 , G11B27/3063 , H04N19/124 , H04N19/152 , H04N19/187 , H04N19/37 , H04N19/60 , H04N19/13 , H04N19/146 , H04N19/30 , H04N19/91 , H04N5/78263 , H04N9/7973
摘要： Specified modular arithmetic is applied to input digital data to divide the input data into two main codes and a subcode. Otherwise, input digital data is divided into two pieces of digital data according to a specified rule. The digital data is divided so that the original input digital data can be completely restored if the two main codes and the subcode or both of the divided data are used, and the original input digital data can be nearly correctly restored even when one of the main codes or one of the divided data is used.
摘要翻译：应用指定的模数运算来输入数字数据，将输入数据分成两个主要代码和一个子代码。否则，输入数字数据按照规定被分成两部分数字数据。数字数据被分割，使得如果使用两个主要代码和子代码或两个分割数据，则原始输入数字数据可以被完全恢复，并且即使当主要代码或分割数据之一被使用。

3. 发明授权

US5570378A Error-correcting apparatus 失效
公开(公告)号：US5570378A
公开(公告)日：1996-10-29
申请号：US505883
申请日：1995-07-24
申请人： Sadayuki Inoue , Junko Ishimoto , Takahiko Nakamura , Makoto Kumano
发明人： Sadayuki Inoue , Junko Ishimoto , Takahiko Nakamura , Makoto Kumano
IPC分类号： H03M13/00 , H03M13/15 , G06F11/10
CPC分类号： H03M13/151 , H03M13/00
摘要： In an error-correcting apparatus for correcting errors included in reproduced data which are stored in a RAM, a syndrome generation circuit, a polynomial calculation circuit for calculating an error position polynomial and an error value polynomial, and a position calculation circuit for calculating an error position are operated in parallel. A divider section of the error-correcting apparatus has a divider for performing the division of highest-degree coefficients of two polynomials, a multiplier for multiplying the coefficient of the polynomial set in the divisor side of the divider by the output of the divider, and an adder for adding the output of the multiplier and the coefficient of the polynomial set in the dividend side of the divider. The divider section executes the division over a Galois field while sequentially shifting the contents of registers which store the coefficient data of the dividend polynomial.

4. 发明授权

US5675696A Digital video signal recording and reproducing apparatus 失效
标题翻译：数字视频信号记录和再现装置
公开(公告)号：US5675696A
公开(公告)日：1997-10-07
申请号：US546841
申请日：1995-10-23
申请人： Junko Ishimoto , Haruhisa Inoue , Makoto Kumano , Sadayuki Inoue
发明人： Junko Ishimoto , Haruhisa Inoue , Makoto Kumano , Sadayuki Inoue
IPC分类号： G11B15/18 , G11B27/032 , G11B27/036 , H04N5/783 , H04N9/804 , H04N9/888 , H04N5/926 , H04N5/92
CPC分类号： H04N9/8042 , G11B27/036 , G11B15/1875 , G11B2220/90 , G11B27/032 , H04N5/783 , H04N9/888
摘要： A digital video signal recording and reproducing apparatus which obtains a favorable reproduced picture even when the data overwritten by edited data is interpolated with the data of the preceding field or preceding frame by recording the video data of the visually inconspicuous peripheral area on a track that is possibly overwritten by the editing data at a cut-in point or cut-out point in assemble editing or insert editing. The apparatus further obtains a natural picture without any fixed error even in speed search mode by exchanging the recording order of the video data of one field on plural tracks according to the head scanning trace in the speed search.
摘要翻译：一种数字视频信号记录和再现装置，即使在通过编辑数据覆盖的数据被内插的情况下，通过将视觉上不显眼的周边区域的视频数据记录在在编辑或插入编辑时可能会在切入点或切出点处的编辑数据覆盖。通过在速度搜索中根据头部扫描轨迹交换多个轨道上的一个场的视频数据的记录顺序，装置还通过速度搜索模式获得无任何固定误差的自然图像。

5. 发明授权

US5504758A Error-correcting apparatus 失效
标题翻译：纠错装置
公开(公告)号：US5504758A
公开(公告)日：1996-04-02
申请号：US53497
申请日：1993-04-28
申请人： Sadayuki Inoue , Junko Ishimoto , Takahiko Nakamura , Makoto Kumano
发明人： Sadayuki Inoue , Junko Ishimoto , Takahiko Nakamura , Makoto Kumano
IPC分类号： H03M13/00 , H03M13/15 , G06F11/10
CPC分类号： H03M13/151 , H03M13/00
摘要： In an error-correcting apparatus for correcting errors included in reproduced data which are stored in a RAM, a syndrome generation circuit, a polynomial calculation circuit for calculating an error position polynomial and an error value polynomial, and a position calculation circuit for calculating an error position are operated in parallel. A divider section of the error-correcting apparatus has a divider for performing the division of highest-degree coefficients of two polynomials, a multiplier for multiplying the coefficient of the polynomial set in the divisor side of the divider by the output of the divider, and an adder for adding the output of the multiplier and the coefficient of the polynomial set in the dividend side of the divider. The divider section executes the division over a Galois field while sequentially shifting the contents of registers which store the coefficient data of the dividend polynomial.
摘要翻译：在用于校正存储在RAM中的再现数据中包含的误差的纠错装置，校正子产生电路，用于计算误差位置多项式的多项式计算电路和误差值多项式，以及用于计算误差的位置计算电路位置并行运行。误差校正装置的除法器部分具有用于执行两个多项式的最高系数的除法的分频器，用于将除法器的除数的多项式的系数乘以分频器的输出的乘法器，以及用于将乘法器的输出和分频器的被除数中的多项式的系数相加的加法器。分频器部分通过伽罗瓦域执行除法，同时顺序地移位存储分红多项式的系数数据的寄存器的内容。

6. 发明授权

US07369746B2 Device for recording digital video and audio signals in designated areas of a recording medium in a predetermined track format 失效
标题翻译：用于以预定轨道格式在记录介质的指定区域中记录数字视频和音频信号的装置
公开(公告)号：US07369746B2
公开(公告)日：2008-05-06
申请号：US09984413
申请日：2001-10-30
申请人： Tomohiro Ueda , Taketoshi Hibi , Junko Ishimoto , Masako Asamura , Nobuyoshi Okumura , Sadayuki Inoue , Tohru Inoue , Ken Onishi
发明人： Tomohiro Ueda , Taketoshi Hibi , Junko Ishimoto , Masako Asamura , Nobuyoshi Okumura , Sadayuki Inoue , Tohru Inoue , Ken Onishi
IPC分类号： H04N5/76 , H04N7/00 , H04N7/26
CPC分类号： H04N9/8042 , G11B5/0086 , G11B5/09 , G11B15/1816 , G11B15/1875 , G11B15/44 , G11B15/463 , G11B15/4678 , G11B20/00086 , G11B20/1201 , G11B20/1809 , G11B27/005 , G11B27/3027 , G11B2220/90 , H04N5/78263 , H04N5/783 , H04N5/913 , H04N9/8047 , H04N9/8227
摘要： Data separating means extracts intra-frame or intra-field encoded blocks from an intra-frame or intra-field encoded, and inter-frame or inter-field encoded digital video signal, and a digital audio signal contained in an input bit stream. Error correction code appending means appends error correction codes to the extracted intra-encoded blocks. Recording means records the data having the error correction code appended, in special replay data recording areas predefined on the magnetic recording tape. During fast replay or slow replay, error correction is achieved even for the replay signal with a low output level and a poor symbol rate.
摘要翻译：数据分离装置从帧内或场内编码，帧间或场间编码数字视频信号以及包含在输入比特流中的数字音频信号提取帧内或场内编码块。纠错码附加装置将纠错码附加到提取的帧内编码块。记录装置将具有附加的纠错码的数据记录在磁记录带上预定义的特殊重放数据记录区域中。在快速重放或慢速重放期间，即使对于具有低输出电平和差的符号率的重放信号也能实现纠错。

7. 发明授权

US5684915A Digital VTR for recording special replay data with appended error correction codes 失效
标题翻译：数字录像机，用于录制特殊重放数据，附带纠错码
公开(公告)号：US5684915A
公开(公告)日：1997-11-04
申请号：US420141
申请日：1995-04-11
申请人： Tomohiro Ueda , Taketoshi Hibi , Junko Ishimoto , Masako Asamura , Nobuyoshi Okumura , Sadayuki Inoue , Tohru Inoue , Ken Onishi
发明人： Tomohiro Ueda , Taketoshi Hibi , Junko Ishimoto , Masako Asamura , Nobuyoshi Okumura , Sadayuki Inoue , Tohru Inoue , Ken Onishi
IPC分类号： H04N5/783 , G11B5/008 , G11B5/09 , G11B15/18 , G11B15/44 , G11B15/46 , G11B15/467 , G11B15/473 , G11B20/00 , G11B20/12 , G11B20/18 , G11B27/00 , G11B27/30 , H03M13/00 , H04N5/7826 , H04N5/913 , H04N5/92 , H04N9/804 , H04N9/82
CPC分类号： H04N9/8042 , G11B15/1816 , G11B15/1875 , G11B15/44 , G11B15/4678 , G11B20/1201 , G11B27/005 , G11B27/3027 , G11B5/0086 , G11B5/09 , H04N9/8047 , G11B15/463 , G11B20/00086 , G11B20/1809 , G11B2220/90 , H04N5/78263 , H04N5/783 , H04N5/913 , H04N9/8227
摘要： Data separating means extracts intra-frame or intra-field encoded blocks from an intra-frame or intra-field encoded, and inter-frame or inter-field encoded digital video signal, and a digital audio signal contained in an input bit stream. Error correction code appending means appends error correction codes to the extracted intra-encoded blocks. Recording means records the data having the error correction code appended, in special replay data recording areas predefined on the magnetic recording tape. During fast replay or slow replay, error correction is achieved even for the replay signal with a low output level and a poor symbol rate.
摘要翻译：数据分离装置从帧内或场内编码，帧间或场间编码数字视频信号以及包含在输入比特流中的数字音频信号提取帧内或场内编码块。纠错码附加装置将纠错码附加到提取的帧内编码块。记录装置将具有附加的纠错码的数据记录在磁记录带上预定义的特殊重放数据记录区域中。在快速重放或慢速重放期间，即使对于具有低输出电平和差的符号率的重放信号也能实现纠错。

8. 发明授权

US5499144A Magnetic recording/playback apparatus which shifts the head scan by a 1/2 t r 失效
标题翻译：磁记录/重放装置，其在高速重放期间将头部扫描偏移1/2道间距
公开(公告)号：US5499144A
公开(公告)日：1996-03-12
申请号：US106722
申请日：1993-08-16
申请人： Sadayuki Inoue , Junko Ishimoto , Haruhisa Inoue , Ken Onishi
发明人： Sadayuki Inoue , Junko Ishimoto , Haruhisa Inoue , Ken Onishi
IPC分类号： G11B5/008 , G11B5/09 , G11B15/12 , G11B15/18 , G11B15/467 , G11B20/12 , G11B27/00 , H04N5/7826 , H04N5/783 , H04N5/945 , H04N9/797 , H04N9/804 , G11B5/584
CPC分类号： G11B15/4672 , G11B15/1875 , G11B15/4678 , G11B20/1207 , G11B27/005 , G11B5/0086 , G11B5/09 , H04N9/8047 , G11B15/125 , G11B15/4671 , G11B2220/90 , H04N5/78266 , H04N5/783 , H04N5/945 , H04N9/7973
摘要： In a magnetic recording/playback apparatus for recording and playing back a digital video signal on a helical track of a magnetic tape using two or more rotary heads, the playback image at the time of high-speed playback is improved by setting the tape travel speed at the time of high-speed playback at an even multiple of a normal playback speed. Further a tracking phase is offset by one half the track pitch with respect to the tracking during normal speed playback. Alternatively, essential information of the information having been high-efficiency coded is recorded in the central part, and near the ends of the tracks, while high-precision information is recorded in intermediate parts intermediate between the central part and the parts near the ends. Still alternatively, the video data of one of the consecutive fields is recorded in the central part of the tracks and the video data of the other of the consecutive fields is recorded near the ends of the tracks.
摘要翻译：在用于使用两个或多个旋转磁头在磁带的螺旋磁道上记录和重放数字视频信号的磁记录/重放装置中，通过设置磁带行进速度来改善高速重放时的重放图像在正常播放速度的偶数倍的高速播放时。此外，在正常速度重放期间，跟踪相位相对于跟踪偏移了一半的轨道间距。或者，高精度编码的信息的基本信息被记录在中央部分和轨道的端部附近，而高精度信息被记录在中心部分和靠近端部的部分之间的中间部分。或者，连续场中的一个的视频数据被记录在轨道的中心部分，并且另外一个连续场的视频数据被记录在轨迹的末端附近。

9. 发明授权

US6011663A Digital VTR increasing recorded amount of high priority data 失效
标题翻译：数字VTR增加了高优先级数据的记录量
公开(公告)号：US6011663A
公开(公告)日：2000-01-04
申请号：US857468
申请日：1997-05-16
申请人： Sadayuki Inoue , Junko Ishimoto , Taketoshi Hibi , Tomohiro Ueda , Ken Onishi , Satoshi Kurahashi
发明人： Sadayuki Inoue , Junko Ishimoto , Taketoshi Hibi , Tomohiro Ueda , Ken Onishi , Satoshi Kurahashi
IPC分类号： H04N5/92 , G11B15/02 , G11B20/12 , H03M7/40 , H03M7/46 , H04N5/7826 , H04N5/783 , H04N5/93 , H04N9/804 , H04N9/82 , G11B5/09
CPC分类号： H04N9/8042 , H04N5/78263 , H04N5/783 , H04N9/8227
摘要： The digital VTR includes an extractor, variable-length decoder, quantizer and variable-length encoder. The extractor receives digital data divided into blocks, and which is quantized and variable-length coded on a block-by-block basis. Portions of the digital data are encoded according to a first type of encodation, and other portions of the digital data are encoded according to a second type of encodation. The extractor identifies and extracts the digital data encoded according to the first type of encodation. The variable-length decoder variable-length decodes the extracted portions of the digital data, while the quantizer quantizes the decoded data output by the variable length decoder. The variable length encoder variable-length encodes the quantized decoded data to form special-playback data. Alternatively, a convertor converts the extracted portions of the digital data into variable-length coded data having different quantization steps to form the special-playback data.
摘要翻译：数字VTR包括提取器，可变长度解码器，量化器和可变长度编码器。提取器接收被划分成块的数字数据，并且被逐块地量化和可变长度编码。数字数据的部分根据第一类型的编码被编码，并且数字数据的其他部分根据第二类型的编码进行编码。提取器识别并提取根据第一类型编码编码的数字数据。可变长度解码器可变长度解码数字数据的提取部分，而量化器对可变长度解码器输出的解码数据进行量化。可变长度编码器可变长度编码量化的解码数据以形成专用回放数据。或者，转换器将所提取的数字数据部分转换成具有不同量化步长的可变长度编码数据，以形成特殊重放数据。

10. 发明授权

US5751232A High-efficiency encoding apparatus and high-efficiency decoding apparatus 失效
标题翻译：高效编码装置和高效率解码装置
公开(公告)号：US5751232A
公开(公告)日：1998-05-12
申请号：US704276
申请日：1996-08-28
申请人： Sadayuki Inoue , Junko Ishimoto , Ken Onishi
发明人： Sadayuki Inoue , Junko Ishimoto , Ken Onishi
IPC分类号： G06T9/00 , G11B20/10 , H03M7/30 , H03M7/42 , H03M7/46 , H04N19/00 , H04N19/126 , H04N19/129 , H04N19/13 , H04N19/132 , H04N19/136 , H04N19/14 , H04N19/146 , H04N19/152 , H04N19/176 , H04N19/186 , H04N19/189 , H04N19/196 , H04N19/423 , H04N19/426 , H04N19/46 , H04N19/625 , H04N19/70 , H04N19/85 , H04N19/88 , H04N19/91 , H04N19/93 , H03M7/40
CPC分类号： H03M7/46 , H04N19/124 , H04N19/129 , H04N19/15 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/192 , H04N19/196 , H04N19/423 , H04N19/44 , H04N19/60 , H04N19/88 , H04N19/93 , H04N19/13 , H04N19/146 , H04N19/91
摘要： A high-efficiency encoding apparatus having a data division circuit which applies 1-dimensional scanning to the orthogonal-transformed data obtained by applying orthogonal transformation to blocked digital data in the unit of block and divides the data into run-length data and coefficient data, an encoding circuit which applies run-length encoding to the divided run-length data by employing data of the highest probability of occurrence (for example 0), and an encoding circuit which applies run-length encoding to the divided coefficient data by employing data of the highest probability of occurrence (for example 1), thereby reduces the amount of the digital data.
摘要翻译：一种高效编码装置，具有数据分割电路，该数据分割电路对通过以块为单位对被阻塞的数字数据进行正交变换而获得的正交变换数据进行一维扫描，并将该数据划分成游程长度数据和系数数据，编码电路，其通过采用具有最高发生概率的数据（例如0）对划分的游程长度数据应用游程长度编码;以及编码电路，其通过采用数据的数据来应用游程长度编码发生的最高概率（例如1），从而减少了数字数据的数量。

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