公开(公告)号：US4953019A

公开(公告)日：1990-08-28

申请号：US440490

申请日：1989-11-22

申请人： Akihiro Skikakura ,  Yasuyuki Tanaka ,  Makoto Shimokoriyama ,  Yoshiki Ishii ,  Tetsuya Shimizu ,  Shinichi Yamashita ,  Akio Fujii

发明人： Akihiro Skikakura ,  Yasuyuki Tanaka ,  Makoto Shimokoriyama ,  Yoshiki Ishii ,  Tetsuya Shimizu ,  Shinichi Yamashita ,  Akio Fujii

IPC分类号： H04N7/26 ,  H04N7/12

CPC分类号： H04N19/98

摘要： An image signal encoding apparatus for encoding an image signal in which image of one picture plane consisting of a plurality of pixel data are divided into a plurality of blocks each consisting of a predetermined number of pixel data. For each of the blocks, a pair of reference value data regarding the maximum and minimum values of the levels of the pixel data constructing the block are formed. On the basis of the formed reference value data, encoded date is formed by encoding each of the pixel data of the block. Decoded data is formed by decoding the encoded data formed on the basis of the reference value data. By comparing each of the pixel data of the block with the decoded data, errors are detected. The reference value data are corrected in accordance with the result of the detection. Thus, the encoding errors are reduced and it is possible to perform the encoding with less deterioration in picture quality of the image signal.

摘要翻译： 一种用于编码图像信号的图像信号编码装置，其中由多个像素数据组成的一个图像的图像被划分成由预定数量的像素数据组成的多个块。 对于每个块，形成关于构成该块的像素数据的电平的最大值和最小值的一对参考值数据。 基于形成的参考值数据，通过对块的每个像素数据进行编码来形成编码日期。 通过对基于参考值数据形成的编码数据进行解码来形成解码数据。 通过将块的像素数据与解码数据进行比较，检测出错误。 参考值数据根据检测结果进行校正。 因此，编码错误减少，并且可以以较少的图像信号的图像质量劣化来执行编码。

公开(公告)号：US4862292A

公开(公告)日：1989-08-29

申请号：US235002

申请日：1988-08-22

申请人： Masahiko Enari ,  Katsuji Yoshimura ,  Akio Aoki ,  Shinichi Yamashita ,  Makoto Shimokoriyama ,  Motokazu Kashida ,  Tetsuya Shimizu ,  Yoshiki Ishii ,  Akio Fujii

发明人： Masahiko Enari ,  Katsuji Yoshimura ,  Akio Aoki ,  Shinichi Yamashita ,  Makoto Shimokoriyama ,  Motokazu Kashida ,  Tetsuya Shimizu ,  Yoshiki Ishii ,  Akio Fujii

IPC分类号： G11B5/008 ,  G11B20/10 ,  H04N5/7826 ,  H04N5/91 ,  H04N5/92 ,  H04N5/926 ,  H04N9/797 ,  H04N13/00

CPC分类号： H04N13/0055 ,  G11B20/10 ,  G11B5/0086 ,  G11B5/00878 ,  H04N19/597 ,  H04N5/7826 ,  H04N5/91 ,  H04N5/9202 ,  H04N5/926 ,  H04N5/9261 ,  H04N9/7973 ,  H04N13/0003 ,  H04N13/0239 ,  H04N13/0438

摘要： A digital information signal recording apparatus has a first mode in which a digital information signal of one channel is recorded on a recording medium at a given bit rate and a second mode in which digital information signals of n channels (n: an integer which is at least 2) are simultaneously recorded on the recording medium at a bit rate which is 1/n of the given bit rate.

摘要翻译： 数字信息信号记录装置具有第一模式，其中一个通道的数字信息信号以给定的比特率被记录在记录介质上，第二模式中，n个通道的数字信息信号（n： 至少2）以给定比特率的1 / n的比特率同时记录在记录介质上。

公开(公告)号：US5070402A

公开(公告)日：1991-12-03

申请号：US683499

申请日：1991-04-10

申请人： Yoshiki Ishii ,  Makoto Shimokoriyama ,  Tetsuya Shimizu ,  Katsuji Yoshimura ,  Akio Fujii ,  Tomohiko Sasatani

发明人： Yoshiki Ishii ,  Makoto Shimokoriyama ,  Tetsuya Shimizu ,  Katsuji Yoshimura ,  Akio Fujii ,  Tomohiko Sasatani

IPC分类号： H04N7/26

CPC分类号： H04N19/98

摘要： An image information transmission apparatus of this invention encodes and transmits image information. An image information signal of one frame consisting of a plurality of pixel data is divided into a plurality of blocks each consisting of a predetermined number of pixel data. At least two reference value data associated with a dynamic range of levels of the pixel data constituting each of the divided blocks, and distribution state data associated with a distribution state thereof are formed. Each pixel data constituting the block is encoded on the basis of the formed reference value data and the formed distribution state data to obtain encoded data. A transmission data series is formed and transmitted using the formed reference value data, the formed distribution state data, and the encoded data as transmission units. Therefore, the image information signal can be highly effectively transmitted with minimum image quality degradation caused by encoding.

摘要翻译： 本发明的图像信息发送装置对图像信息进行编码和发送。 由多个像素数据构成的一帧的图像信息信号被分成多个块，每个块由预定数量的像素数据组成。 形成与构成每个分割块的像素数据的动态动态范围相关联的至少两个参考值数据，以及与其分布状态相关联的分配状态数据。 基于所形成的基准值数据和形成的分布状态数据对构成块的每个像素数据进行编码以获得编码数据。 使用形成的基准值数据，形成的分配状态数据和编码数据作为发送单位来形成和发送发送数据序列。 因此，可以以由编码导致的最小图像质量劣化来高效地传输图像信息信号。

公开(公告)号：US6052159A

公开(公告)日：2000-04-18

申请号：US876598

申请日：1997-06-16

申请人： Yoshiki Ishii ,  Makoto Shimokoriyama ,  Akio Fujii

发明人： Yoshiki Ishii ,  Makoto Shimokoriyama ,  Akio Fujii

IPC分类号： H04N5/926 ,  H04N5/945 ,  H04N19/895 ,  H04N7/12

CPC分类号： H04N5/9261 ,  H04N19/895 ,  H04N5/945 ,  H04N19/60 ,  H04N19/65

摘要： The present invention provides an image signal reproducing apparatus, in which code errors are concealed by using only pixel data corresponding to parts of the pixels of respective two or more adjacent blocks both of which are adjacent to a subject block to be concealed in the same frame, to conceal the code errors without disturbing the image even if the image is rapidly moving and all of pixels included in the block are not available.

摘要翻译： 本发明提供了一种图像信号再现装置，其中通过仅使用对应于相邻两个或更多个相邻块的像素的部分的像素数据来隐藏代码错误，这两个相邻块的两个相邻块被隐藏在同一帧中 即使图像快速移动并且包含在块中的所有像素都不可用，也可以隐藏代码错误而不干扰图像。

公开(公告)号：US4977452A

公开(公告)日：1990-12-11

申请号：US292508

申请日：1988-12-30

申请人： Masahiko Enari ,  Makoto Shimokoriyama ,  Akio Fujii

发明人： Masahiko Enari ,  Makoto Shimokoriyama ,  Akio Fujii

IPC分类号： H04N19/60 ,  H03H17/00 ,  H03H17/02 ,  H04N19/42 ,  H04N19/423 ,  H04N19/59 ,  H04N19/80 ,  H04N19/85

CPC分类号： H04N19/59

摘要： A sampled-value code processing device in which, from the sampled-value code series input at a predetermined period, a first code series consisting of codes related to a group of sampled values determined according to a prescribed rule and a second code series consisting of codes related to sampled values other than the group of sampled values are each produced at a period longer than the predetermined period, and a filtering process for the first code series is performed by using the second code series.

摘要翻译： 一种采样值码处理装置，其中，从预定周期输入的采样值码序列中，构成与根据规定规则确定的一组采样值相关的码和第二码序列组成的第一码序列， 分别以比规定期间长的期间生成与采样值以外的采样值相关的代码，并且通过使用第二代码序列来执行第一代码序列的滤波处理。

公开(公告)号：US06052507A

公开(公告)日：2000-04-18

申请号：US557815

申请日：1995-11-14

申请人： Mitsuo Niida ,  Akio Fujii ,  Yoshiki Ishii ,  Akiyoshi Hamanaka ,  Shinji Ohnishi

发明人： Mitsuo Niida ,  Akio Fujii ,  Yoshiki Ishii ,  Akiyoshi Hamanaka ,  Shinji Ohnishi

IPC分类号： H04N5/00 ,  H04N5/783 ,  H04N7/54 ,  H04N9/804 ,  H04N9/877 ,  H04N5/91 ,  H04N5/917

CPC分类号： H04N21/4147 ,  H04N7/54 ,  H04N9/8042 ,  H04N5/783 ,  H04N9/877

摘要： A recording/reproducing apparatus for recording encoded data on a recording medium by time sequentially and independently recording normal reproduction data and specific reproduction data contained in the encoded data, the normal reproduction data and specific reproduction data including decode control information. The recording/reproducing apparatus includes a detection circuit for detecting the decode control information from reproduced data in a specific reproduction mode and in a normal reproduction mode, and a memory circuit for storing the control information detected by the detection circuit.

摘要翻译： 一种记录/再现装置，用于按时间顺序地在记录介质上记录编码数据，独立地记录包含在编码数据中的普通再现数据和特定再现数据，正常再现数据和包括解码控制信息的特定再现数据。 记录/再现装置包括一个检测电路，用于以特定再现模式和正常再现模式从再现数据中检测解码控制信息;以及存储电路，用于存储检测电路检测到的控制信息。

公开(公告)号：US5905578A

公开(公告)日：1999-05-18

申请号：US575577

申请日：1995-12-20

申请人： Akio Fujii ,  Yoshiki Ishii

发明人： Akio Fujii ,  Yoshiki Ishii

IPC分类号： G06T9/00 ,  H03M7/30 ,  H03M7/36 ,  H04N19/126 ,  H04N19/134 ,  H04N19/146 ,  H04N19/157 ,  H04N19/174 ,  H04N19/196 ,  H04N19/42 ,  H04N19/423 ,  H04N19/60 ,  H04N19/625 ,  H04N19/85 ,  H04N19/91 ,  H04N19/93 ,  H04N1/417 ,  H04N1/411 ,  H04N1/415

CPC分类号： H04N19/126 ,  H04N19/15 ,  H04N19/176 ,  H04N19/60 ,  H04N19/146

摘要： A coding apparatus has a quantizer selected from a quantizer group and being used for coding inputted data, a first code amount calculation circuit for calculating a code amount of codes of the inputted data quantized by the quantizer, a prediction circuit for predicting a quantizer among the quantizer group capable of obtaining a target code amount, in accordance with the code amount calculated by the first code amount calculation circuit, the quantizer predicted by the prediction circuit for quantizing the inputted data, a second code amount calculation circuit for calculating a code amount of codes of the inputted data quantized by the predicted quantizer, and a comparator circuit for comparing the code amount calculated by the second code amount calculation circuit with the target code amount.

摘要翻译： 编码装置具有从量化器组中选择并用于编码输入数据的量化器，用于计算由量化器量化的输入数据的代码量的第一代码量计算电路，用于预测量化器中的量化器的预测电路 量化器组，其能够根据由第一代码量计算电路计算的代码量获得目标代码量，由预测电路预测的用于量化输入数据的量化器;第二代码量计算电路，用于计算代码量的代码量; 由预测量化器量化的输入数据的代码和用于将由第二代码量计算电路计算出的代码量与目标代码量进行比较的比较器电路。

公开(公告)号：US4903124A

公开(公告)日：1990-02-20

申请号：US673244

申请日：1989-03-16

申请人： Nobuhiro Hoshi ,  Hisashi Ishikawa ,  Yoshiki Ishii ,  Toshihiro Yagisawa ,  Akio Fujii

发明人： Nobuhiro Hoshi ,  Hisashi Ishikawa ,  Yoshiki Ishii ,  Toshihiro Yagisawa ,  Akio Fujii

IPC分类号： G06T9/00 ,  H04N7/24 ,  H04N7/26 ,  H04N7/28

CPC分类号： G06T9/008 ,  H04N19/94 ,  H04N19/98 ,  H04N7/24 ,  H04N19/30

摘要： Disclosed is an image information signal transmission apparatus wherein an image information signal in which one frame is constituted by a plurality of sample data is input, the input image information signal is divided into a plurality of blocks each consisting of a predetermined number of sample data, at least two types of reference value data associated with a dynamic range of sample data of each block is formed in units of blocks, the sample data of each block is coded by using the reference value data to form a plurality of first coded data in units of blocks, the plurality of first coded data formed in units of blocks are vector-quantized to form second coded data in units of blocks, and transmission data is formed by using as a transmission unit the reference data formed in units of blocks and the second coded data formed in units of blocks. The image information signal can be transmitted in a small information volume without degrading the image information signal.

摘要翻译： 公开了一种图像信息信号传输装置，其中输入一个帧由多个采样数据构成的图像信息信号，输入图像信息信号被分成多个块，每个块由预定数量的采样数据组成， 与块的采样数据的动态范围相关联的至少两种参考值数据以块为单位形成，通过使用参考值数据对每个块的采样数据进行编码，以形成多个第一编码数据 以块为单位形成的多个第一编码数据被矢量量化，以块为单位形成第二编码数据，并且通过以块为单位使用形成为块的参考数据作为发送单位来形成发送数据，并且第二 以块为单位形成的编码数据。 图像信息信号可以以小的信息量发送，而不降低图像信息信号。

公开(公告)号：US5793547A

公开(公告)日：1998-08-11

申请号：US218703

申请日：1994-03-28

申请人： Akio Fujii ,  Shinichi Yamashita ,  Toshiya Yatomi ,  Motokazu Kashida

发明人： Akio Fujii ,  Shinichi Yamashita ,  Toshiya Yatomi ,  Motokazu Kashida

IPC分类号： G11B20/18 ,  G11B5/09

CPC分类号： G11B20/18

摘要： An information signal reproducing apparatus capable of correcting digital an information signal utilizing correction data, is formed from a reference signal contained in an information signal reproduced from a recording medium, in which the correction of the digital information signal is conducted behind a digital signal processor for processing the digital information signal corresponding to the reproduced information signal, so that the number of bits handled by the digital signal processor is minimized and the circuit magnitude of the digital signal processor is reduced.

摘要翻译： 能够利用校正数据对信息信号进行数字化的信息信号再现装置由包含在从记录介质再现的信息信号中的参考信号形成，其中数字信息信号的校正在数字信号处理器之后进行， 处理与再现的信息信号对应的数字信息信号，使得由数字信号处理器处理的位数最小化，并减小数字信号处理器的电路幅值。

公开(公告)号：US5544176A

公开(公告)日：1996-08-06

申请号：US250940

申请日：1994-05-31

申请人： Akio Fujii ,  Motokazu Kashida ,  Ikuo Watanabe ,  Shinichi Yamashita

发明人： Akio Fujii ,  Motokazu Kashida ,  Ikuo Watanabe ,  Shinichi Yamashita

IPC分类号： G11B20/10 ,  G11B20/18 ,  H03M13/00 ,  H04N1/32 ,  H04N5/85 ,  H04N9/87 ,  G11B20/12 ,  H04N1/64

CPC分类号： H04N1/32379 ,  G11B20/10 ,  G11B20/18 ,  G11B20/1833 ,  H03M13/00 ,  H04N1/32363 ,  H04N9/8715 ,  H04N2201/3288 ,  H04N5/85

摘要： An information recording apparatus records data, which is in the format of packets received by broadcast, on a recording medium having a write/read capability. If the received data contains any unnecessary items of data that can be reproduced later, these items of data are eliminated at the time of recording on the recording medium. At playback, the eliminated items of data are restored and appended to the data read in from the recording medium. The resulting data, which is substantially the same as that in the packets received by broadcast, is outputted to a playback apparatus capable of reproducing the broadcast.

摘要翻译： 信息记录装置以具有写入/读取能力的记录介质将通过广播接收的分组的格式的数据记录在记录介质上。 如果接收到的数据包含可以稍后再现的任何不必要的数据项，则在记录介质上记录这些数据的数据。 在回放时，消除的数据项被恢复并附加到从记录介质读入的数据。 与广播接收的分组基本相同的结果数据被输出到能够再现广播的再现装置。