公开(公告)号：US5175631A

公开(公告)日：1992-12-29

申请号：US567293

申请日：1990-08-14

申请人： Tatsuro Juri ,  Masakazu Nishino ,  Hideki Ohtaka ,  Kouji Matsushita

发明人： Tatsuro Juri ,  Masakazu Nishino ,  Hideki Ohtaka ,  Kouji Matsushita

IPC分类号： H04N5/783 ,  H04N5/926 ,  H04N9/797 ,  H04N9/804 ,  H04N9/877

CPC分类号： H04N19/436 ,  H04N5/9264 ,  H04N9/7973 ,  H04N9/8047 ,  H04N9/877 ,  H04N5/783

摘要： A video signal digital recording and reproducing apparatus includes: a rearranging section for rearranging a sequence of signals on a rectangular unit by rectangular unit basis formed by sectioning a group of pixel data on a screen of a digital video signal; an encoding section for subjecting the signals in the rectangular units to bit rate reduction; a block forming section for gathering plural number of the coded rectangular units to constitute a block of signals, and a recording the block of signals section for recording on a recording medium. The rearranging section divides the screen into plural regions, takes out the rectangular units by a certain number in order from each region, and carries out rearrangement so that mutually corresponding rectangular units which are contained respectively in adjacent blocks on the recording medium are mutually adjacent on the screen. The recording section is constituted so that the blocks signals are recorded simultaneously in parallel on the recording medium by using plural channels. The rearranging section may have such a constitution that the screen is divided into plural regions and the rectangular units are taken out by a certain number in order from each region, and rearrangement is carried out to that mutually corresponding rectangular units which are contained respectively in adjacent or neighboring blocks to be simultaneously recorded in parallel by the plural channels on the recording section are mutually adjacent on the screen.

摘要翻译： 视频信号数字记录和再现装置包括：重排部分，用于通过在数字视频信号的屏幕上划分一组像素数据而形成矩形单元，在矩形单元上重新排列信号序列; 编码部分，用于对矩形单元中的信号进行比特率降低; 用于收集多个编码矩形单元以构成信号块的块形成部分，以及在记录介质上记录用于记录的信号块部分。 重排部分将屏幕分成多个区域，从每个区域按顺序取出一定数量的矩形单元，并执行重排，使得分别存储在记录介质上的相邻块中的相互对应的矩形单元相互相邻 屏幕。 记录部分被构造成使得通过使用多个通道将块信号同时记录在记录介质上。 重排部分可以具有这样一种结构，即屏幕被分成多个区域，矩形单元从各个区域按顺序取出一定数量，并且对相邻的相应的矩形单元进行重排，该矩形单元分别包含在相邻的 或通过记录部分上的多个通道并行同时记录的相邻块在屏幕上相互相邻。

公开(公告)号：US5262853A

公开(公告)日：1993-11-16

申请号：US831993

申请日：1992-02-06

申请人： Masakazu Nishino ,  Tatsuro Juri ,  Hideki Ohtaka

发明人： Masakazu Nishino ,  Tatsuro Juri ,  Hideki Ohtaka

IPC分类号： H04N3/22 ,  G06T9/00 ,  H04N7/015 ,  H04N11/04 ,  H04N19/00 ,  H04N19/102 ,  H04N19/134 ,  H04N19/169 ,  H04N19/196 ,  H04N19/50 ,  H04N19/60 ,  H04N19/61 ,  H04N19/98 ,  H04N7/12 ,  H04N7/04

CPC分类号： H04N7/015 ,  H04N19/115 ,  H04N19/124 ,  H04N19/149 ,  H04N19/176 ,  H04N19/30

摘要： In an encoder for selectively receiving, blocking and coding by orthogonal transformation an image A with a screen aspect ratio which is greater than 4:3 or an image B with a screen aspect ratio of 4:3, when the image A is entered, it is divided into a basic screen with an aspect ratio of 4:3 corresponding to a central portion of a screen and an additional screen other than the basic screen. Coding is controlled so that a sum of coded data quantity of a specified number of blocks m of orthogonal transformation of the basic screen and a specified number of blocks n of orthogonal transformation of the additional screen is within a specified data quantity x. When the image B is entered, the coding is controlled so that a coded data quantity of the same number of blocks of orthogonal transformation as the specified number of blocks of orthogonal transformation m of the basic screen of the image A is within the same data quantity as the specified data quantity x.

公开(公告)号：US5272528A

公开(公告)日：1993-12-21

申请号：US805520

申请日：1991-12-13

申请人： Tatsuro Juri ,  Masakazu Nishino ,  Hideki Ohtaka

发明人： Tatsuro Juri ,  Masakazu Nishino ,  Hideki Ohtaka

IPC分类号： G11B20/12 ,  G11B20/14 ,  H03M7/42 ,  H04N5/92 ,  H04N5/926 ,  H04N9/804 ,  H04N19/102 ,  H04N19/149 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/423 ,  H04N19/60 ,  H04N19/625 ,  H04N19/65 ,  H04N19/66 ,  H04N19/68 ,  H04N19/85 ,  H04N19/91 ,  H04N19/93 ,  H04N7/133

CPC分类号： G11B20/1426 ,  H03M7/42 ,  H04N19/115 ,  H04N19/176 ,  H04N19/18 ,  H04N5/9264 ,  H04N9/8047 ,  H04N19/13 ,  H04N19/146 ,  H04N19/149 ,  H04N19/15 ,  H04N19/60 ,  H04N19/91

摘要： An information recording apparatus implements the orthogonal transformation for the input signal on a block-by-block basis, separates each variable-length coded word into a fixed part and separate part individually, records the fixed part into a record block which is established for each block of orthogonal component by starting from the beginning and ending at the prescribed position of the record block, and records coded words of the separate part into remaining portions of record blocks.

公开(公告)号：US5278706A

公开(公告)日：1994-01-11

申请号：US690253

申请日：1991-04-23

申请人： Akira Iketani ,  Chojuro Yamamitsu ,  Akifumi Ide ,  Masakazu Nishino ,  Tatsuro Juri ,  Hideki Ohtaka ,  Chiyoko Matsumi

发明人： Akira Iketani ,  Chojuro Yamamitsu ,  Akifumi Ide ,  Masakazu Nishino ,  Tatsuro Juri ,  Hideki Ohtaka ,  Chiyoko Matsumi

IPC分类号： H04N5/7826 ,  G11B5/53 ,  G11B15/473 ,  H04N9/804 ,  H04N9/808 ,  G11B21/02

CPC分类号： G11B15/473

摘要： In a digital video signal recording/reproducing apparatus for recording digital VCR video and audio signals by using a rotary cylinder, for a video signal with a frame frequency fN of 30 Hz or 29.97 Hz, the rotating frequency of the cylinder is set to 2.5 times fN. On the other hand, for a signal with a frame frequency fP of 25 Hz, the rotating frequency of the cylinder is set to 3.0 times fP. As a result, as long as the cylinder diameters are identical, the relative speed of the tape and the head is the same for video signals of either frame frequency fN or fP.

摘要翻译： 在用于通过使用旋转圆筒记录数字VCR视频和音频信号的数字视频信号记录/再现装置中，对于帧频fN为30Hz或29.97Hz的视频信号，将气缸的旋转频率设置为2.5倍 fN。 另一方面，对于帧频fP为25Hz的信号，将气缸的旋转频率设定为fP的3.0倍。 结果，只要圆柱体直径相同，对于帧频fN或fP的视频信号，磁带和磁头的相对速度相同。

公开(公告)号：US5351131A

公开(公告)日：1994-09-27

申请号：US780986

申请日：1991-10-23

申请人： Masakazu Nishino ,  Tatsuro Juri ,  Hideki Ohtaka

发明人： Masakazu Nishino ,  Tatsuro Juri ,  Hideki Ohtaka

IPC分类号： H04N5/783 ,  H04N5/926 ,  H04N5/945 ,  H04N5/91

CPC分类号： H04N5/9264 ,  H04N5/945 ,  H04N5/783

摘要： Disclosed are a video signal recording apparatus for dividing digital video signal into blocks, transforming orthogonally, quantizing, coding in a variable length, and recording always in identical data quantity in a unit of specific number of blocks, and a video signal reproducing apparatus for decoding the recorded signal in variable length, quantizing inversely, transforming inversely and orthogonally, and reproducing the original digital video signal. The coding data in the specific number of blocks in the identical data quantity is divided in two code rows, the individual low frequency components are assigned to separate sync blocks, and high frequency components are also assigned to separate sync blocks, and recorded. When reproducing, if the sync block of high frequency components is wrong, it is possible to decode only with low frequency components, and the screen is reproduced at high fidelity to the reproducing speed at the time of high speed reproducing. By recording the position information indicating the boundary position between two code rows, or the concealment information showing the concealment state, even by variable length coding, the range of error concealment may be narrowed, and the effects of error may be minimized.

摘要翻译： 公开了一种视频信号记录装置，用于将数字视频信号分成块，以可变长度进行正交，量化，编码，并以特定数量的块为单位总是以相同的数据量进行记录;以及视频信号再现装置，用于解码 以可变长度记录的信号，逆向量化，逆向和正交变换，并再现原始数字视频信号。 将相同数据量的特定数量的块中的编码数据划分为两个代码行，将各个低频分量分配给单独的同步块，并将高频分量分配给分离的同步块并记录。 当再现时，如果高频分量的同步块错误，则可以仅利用低频分量进行解码，并且在高速再现时以高保真度再现再现速度的画面。 通过记录指示两个代码行之间的边界位置的位置信息或表示隐藏状态的隐藏信息，即使通过可变长度编码，错误隐藏的范围也可能变窄，并且误差的影响可能最小化。

公开(公告)号：US5392129A

公开(公告)日：1995-02-21

申请号：US83052

申请日：1993-06-25

申请人： Hideki Ohtaka ,  Tatsuro Juri

发明人： Hideki Ohtaka ,  Tatsuro Juri

IPC分类号： G11B20/18 ,  G06T9/00 ,  H03M7/40 ,  H03M13/00 ,  H04N1/41 ,  H04N1/415 ,  H04N5/92 ,  H04N5/926 ,  H04N5/945 ,  H04N19/102 ,  H04N19/132 ,  H04N19/166 ,  H04N19/174 ,  H04N19/186 ,  H04N19/189 ,  H04N19/423 ,  H04N19/46 ,  H04N19/59 ,  H04N19/60 ,  H04N19/625 ,  H04N19/65 ,  H04N19/67 ,  H04N19/70 ,  H04N19/85 ,  H04N19/89 ,  H04N19/895 ,  H04N19/91 ,  H04N5/94

CPC分类号： H04N5/945 ,  H04N19/895 ,  H04N5/9264

摘要： A signal processing apparatus for use in a digital video signal reproducing apparatus for reproducing digital signal presented in sync blocks is disclosed. Each sync block has a fixed area for low frequency data and five subsequent sync blocks define a sharing group for sharing high frequency data. The signal processing apparatus includes an inner and outer correction circuit for correcting errors in the sync blocks. An error flag is provided to a sync block which still has an error remaining after the processing in the correction circuit. A memory is provided for storing errorless sync blocks of one frame. A substitution switch is provided for passing the errorless sync blocks, but substituting a sync block stored in the memory for a sync block still having some errors. Five sync blocks produced from the substitution switch are held in a delay. When no substitute sync block is detected in the five sync blocks in the delay, the data in the five sync blocks are decoded by a bit rate reduction decoder. But, when one to four substitute sync block is detected in the five sync blocks in the delay, only the low frequency data of the five sync blocks in the fixed area are decoded by the bit rate reduction decoder.

摘要翻译： 公开了一种用于再现同步块中呈现的数字信号的数字视频信号再现装置中的信号处理装置。 每个同步块具有用于低频数据的固定区域，并且五个后续同步块定义用于共享高频数据的共享组。 信号处理装置包括用于校正同步块中的错误的内部和外部校正电路。 错误标志被提供给在校正电路中的处理之后仍然具有错误的同步块。 提供存储器用于存储一帧的无错同步块。 提供了用于传递无错同步块的替代开关，但是将存储在存储器中的同步块替换为仍然具有一些错误的同步块。 由替代开关产生的五个同步块被延迟。 当延迟中的五个同步块中没有检测到替代同步块时，五个同步块中的数据被比特率降低解码器解码。 但是，当延迟中的五个同步块中检测到一到四个替代同步块时，只有固定区域中的5个同步块的低频数据被比特率降低解码器解码。

公开(公告)号：US5341250A

公开(公告)日：1994-08-23

申请号：US27281

申请日：1993-03-05

申请人： Hirofumi Uchida ,  Tatsuro Juri ,  Hideki Ohtaka

发明人： Hirofumi Uchida ,  Tatsuro Juri ,  Hideki Ohtaka

IPC分类号： G11B20/12 ,  H04N5/92 ,  H04N5/926 ,  G11B5/09 ,  H04N5/76

CPC分类号： H04N5/9264 ,  H04N5/926

摘要： In a video signal digital magnetic recording and/or reproducing apparatus, an input image data array is rearranged into a different data array appropriate for data compression and then subjected to a data compression by variable length coding. The resulting data are rearranged after the data compression and then recorded sequentially onto a video track of a magnetic tape in the same order as that in the frame. In a high-speed playback mode, only the lower frequency component data is decoded every sync block, so that the data reproduced from one video track adjoin each other in the playback picture on the screen.

摘要翻译： 在视频信号数字磁记录和/或再现装置中，将输入图像数据阵列重新排列成适于数据压缩的不同数据阵列，然后通过可变长度编码进行数据压缩。 所得到的数据在数据压缩之后重新排列，然后以与帧中相同的顺序顺序地记录在磁带的视频轨道上。 在高速播放模式中，每个同步块仅对较低频率分量数据进行解码，使得从一个视频轨道再现的数据在屏幕上的回放图像中彼此相邻。

公开(公告)号：US5193010A

公开(公告)日：1993-03-09

申请号：US574288

申请日：1990-08-28

申请人： Tatsuro Juri ,  Chiyoko Matsumi ,  Shinya Kadono ,  Hideki Ohtaka

发明人： Tatsuro Juri ,  Chiyoko Matsumi ,  Shinya Kadono ,  Hideki Ohtaka

IPC分类号： G11B20/00 ,  G11B20/18 ,  G11B27/032 ,  H04N5/926 ,  H04N5/945 ,  H04N19/89 ,  H04N19/895

CPC分类号： G11B27/032 ,  G11B20/00086 ,  G11B20/1809 ,  H04N19/142 ,  H04N19/179 ,  H04N19/87 ,  H04N19/89 ,  H04N19/895 ,  H04N5/926 ,  H04N5/945 ,  G11B2220/90 ,  H04N19/60 ,  H04N19/65

摘要： In recording and reproducing the digital video signals by bit rate reduction, if they are copied while being subjected to bit rate reduction, no accumulation of distortions in orthogonal transformation or bit rate reduction occurs, and moreover, copying can be done at a low data rate. On the other hand, in case of dividing the data into blocks in each page and transmitting or recording and reproducing the data by block, by concealing the error by the data having the strongest correlation out of the data located in the pages before and after the block in which error has been detected, no degradation in image quality is induced even when the scene changes between pages. Further, at the same time, by detecting the previous concealment information, if there exists a block which was previously concealed in the block in which error has at present been detected, then the data can be fully reproduced by utilizing it, and degradation in image quality can be reduced to a minimum. Also, if degradation in image quality is reduced to a minimum, then the degradation in image quality in the case of repeated copying is reduced to a minimum.

公开(公告)号：US5621578A

公开(公告)日：1997-04-15

申请号：US515587

申请日：1995-08-16

申请人： Chiyoko Matsumi ,  Takahiro Nakamura ,  Susumu Yamaguchi ,  Hideki Ohtaka ,  Ryouichi Hoshiai ,  Masakazu Nishino

发明人： Chiyoko Matsumi ,  Takahiro Nakamura ,  Susumu Yamaguchi ,  Hideki Ohtaka ,  Ryouichi Hoshiai ,  Masakazu Nishino

IPC分类号： G11B5/86 ,  G11B15/087 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/024 ,  G11B27/032 ,  G11B27/036 ,  G11B27/28 ,  G11B27/36 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/913 ,  H04N9/804 ,  H04N9/808 ,  H04N9/82

CPC分类号： G11B20/0021 ,  G11B15/087 ,  G11B20/00086 ,  G11B20/00188 ,  G11B20/00746 ,  G11B20/00753 ,  G11B20/00768 ,  G11B20/00775 ,  G11B20/10527 ,  G11B20/1208 ,  G11B20/1809 ,  G11B27/024 ,  G11B27/032 ,  G11B27/036 ,  G11B27/28 ,  G11B27/36 ,  H04N9/8087 ,  G11B20/00007 ,  G11B2220/90 ,  G11B5/86 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91364 ,  H04N5/78266 ,  H04N5/783 ,  H04N5/913 ,  H04N9/8042 ,  H04N9/8205 ,  H04N9/8233

摘要： In a digital signal recording and reproducing apparatus, a signal obtained by multiplexing an audio signal on a bit rate reduction encoded video signal is delivered as a transmission signal. The transmission signal is multiplexed with a data showing its content, such as a copy number of times data and an edit number of times data. Depending on the state of reproduction at a reproducing side apparatus, which is a source side of transmission, a control data for controlling a recording side apparatus, which is a destination of transmission, is also multiplexed.

摘要翻译： 在数字信号记录和再现装置中，通过将比特率降低编码视频信号上的音频信号复用而获得的信号作为发送信号被传送。 发送信号与表示其内容的数据多路复用，例如数据的复制次数和编辑次数数据。 根据作为发送源侧的再现侧装置的再现状态，也被复用用于控制作为发送目的地的记录侧装置的控制数据。

公开(公告)号：US5479299A

公开(公告)日：1995-12-26

申请号：US831994

申请日：1992-02-06

申请人： Chiyoko Matsumi ,  Takahiro Nakamura ,  Susumu Yamaguchi ,  Hideki Ohtaka ,  Ryouichi Hoshiai ,  Masakazu Nishino

发明人： Chiyoko Matsumi ,  Takahiro Nakamura ,  Susumu Yamaguchi ,  Hideki Ohtaka ,  Ryouichi Hoshiai ,  Masakazu Nishino

IPC分类号： G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/032 ,  G11B27/036 ,  G11B27/28 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/913 ,  H04N5/92 ,  H04N5/926 ,  H04N9/804 ,  H04N9/82 ,  G11B27/02

CPC分类号： G11B20/00746 ,  G11B20/00086 ,  G11B20/00188 ,  G11B20/0021 ,  G11B20/00753 ,  G11B20/00768 ,  G11B20/10527 ,  G11B20/1208 ,  G11B20/1809 ,  G11B27/032 ,  G11B27/036 ,  G11B27/28 ,  H04N5/913 ,  H04N5/9201 ,  H04N5/9267 ,  G11B2220/90 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91364 ,  H04N5/78266 ,  H04N5/783 ,  H04N9/8042 ,  H04N9/8205 ,  H04N9/8233

摘要： In a digital signal recording and reproducing apparatus, a signal obtained by multiplexing an audio signal on a bit rate reduction encoded video signal is delivered as a transmission signal. The transmission signal is multiplexed with a data showing its content, such as a copy number of times data and an edit number of times data. Depending on the state of reproduction at a reproducing side apparatus, which is a source side of transmission, a control data for controlling a recording side apparatus, which is a destination of transmission is also multiplexed.

摘要翻译： 在数字信号记录和再现装置中，通过将比特率降低编码视频信号上的音频信号复用而获得的信号作为发送信号被传送。 发送信号与表示其内容的数据多路复用，例如数据的复制次数和编辑次数数据。 根据作为发送源侧的再现侧装置的再现状态，还将用于控制作为发送目的地的记录侧装置的控制数据进行多路复用。