公开(公告)号：US4720743A

公开(公告)日：1988-01-19

申请号：US796683

申请日：1985-11-12

申请人： Kazumoto Iinuma ,  Yukihiko Iijima ,  Hideo Kuroda ,  Hideo Hashimoto

发明人： Kazumoto Iinuma ,  Yukihiko Iijima ,  Hideo Kuroda ,  Hideo Hashimoto

IPC分类号： H04N19/50 ,  G06T9/00 ,  H04N7/12

CPC分类号： H04N19/593 ,  H04N19/503 ,  H04N19/51

摘要： A predictive coding/decoding system for block-formed picture signals includes predictive coding and decoding units in transmitter and receiver sides, respectively: each of the predictive coding and decoding units is provided with a control pulse generator responsive to a horizontal synchronization pulse in the picture signal to produce a sampling signal and a select signal, and a pair of selectors together responsive to the select signal to select a sum of a prediction signal and a prediction error signal or a fixed value as an input of a prediction circuit, the pair of selectors selecting the fixed value for a partial picture block including a fraction of pixels due to the block formation.

摘要翻译： 用于块形图像信号的预测编码/解码系统分别包括发射机和接收机侧的预测编码和解码单元：预测编码和解码单元中的每一个都具有响应于图像中的水平同步脉冲的控制脉冲发生器 信号以产生采样信号和选择信号，以及一对响应于选择信号的选择器，以选择预测信号和预测误差信号或固定值的和作为预测电路的输入，所述一对 选择器由于块形成而选择包括一部分像素的部分图像块的固定值。

公开(公告)号：US4075655A

公开(公告)日：1978-02-21

申请号：US673327

申请日：1976-04-05

申请人： Yukihiko Iijima ,  Kazumoto Iinuma ,  Tatsuo Ishiguro

发明人： Yukihiko Iijima ,  Kazumoto Iinuma ,  Tatsuo Ishiguro

IPC分类号： G06T9/00 ,  H04N11/04 ,  H04N9/32

CPC分类号： G06T9/004 ,  H04N11/046

摘要： Responsive to signal samples of a color television signal including a carrier chrominance signal, a predictive encoder produces quantized prediction error signals in compliance with a first transfer characteristic (1 - P.sub.1)(1 - P.sub.2), wherein minima which are substantially equal to zero are taken by the absolute value of 1 - P.sub.1 in the neighborhood of frame frequency and by the absolute value of 1 - P.sub.2 in the neighborhoods of zero frequency and subcarrier frequency. Responsive to the quantized prediction error signals, a predictive decoder produces reproduced samples in compliance with a second transfer characteristic of the inverse of the first transfer characteristic.

公开(公告)号：US4802006A

公开(公告)日：1989-01-31

申请号：US796682

申请日：1985-11-12

申请人： Kazumoto Iinuma ,  Toshio Koga ,  Akihiro Furukawa ,  Sakae Okubo ,  Hideo Hashimoto ,  Naoki Mukawa

发明人： Kazumoto Iinuma ,  Toshio Koga ,  Akihiro Furukawa ,  Sakae Okubo ,  Hideo Hashimoto ,  Naoki Mukawa

IPC分类号： H04N19/50 ,  H04N7/12

CPC分类号： H04N19/503

摘要： In a predictive encoder for use particularly in a conference television system, a signal processing unit is used in producing a prediction signal and comprises three prediction circuits (22, 23, 31) and a selection circuit (24) coupled to the prediction circuits. The prediction circuits are for producing an inframe, an interframe, and a background prediction signals, respectively. Those signals are produced by processing an original signal at instants which precede a current instant and are different from one another. The selection circuit is for selecting one of the inframe, the interframe, and the background prediction signals. Therefore, it is possible to produce the prediction signal suitably predictive of the original signal. The signal processing circuit serves equally well in a predictive decoder.

摘要翻译： 在特别是在会议电视系统中使用的预测编码器中，信号处理单元用于产生预测信号，并且包括三个预测电路（22,23,31）和耦合到预测电路的选择电路（24）。 预测电路分别用于产生帧间帧，帧间帧和背景预测信号。 这些信号通过在当前时刻之前的时刻处理原始信号而产生，并且彼此不同。 选择电路用于选择帧内，帧间和背景预测信号之一。 因此，可以产生适当地预测原始信号的预测信号。 信号处理电路在预测解码器中同样良好地工作。

公开(公告)号：US4533957A

公开(公告)日：1985-08-06

申请号：US526588

申请日：1983-08-26

申请人： Kazumoto Iinuma

发明人： Kazumoto Iinuma

IPC分类号： G06T9/00 ,  H04N1/41 ,  H04N1/417 ,  H04N1/40 ,  H04N7/12

CPC分类号： H04N19/90 ,  G06T9/005 ,  H04N1/417

摘要： A prediction error signal and a prediction state signal are generated for each of a plurality of picture elements (or bit planes or gray codes) to be encoded. The picture error signal is based on a plurality of previously encoded picture element data (or bit plane or gray code). The prediction state signal indicates the probability of the prediction error signal being accurate in one of two probability states. The prediction error signals are classified into two groups according to the probability state indicated by the corresponding prediction state signal. The prediction error signals are then reordered according to a predetermined algorithm. Thereafter, the reordered prediction error signals are run length coded based on the occurrences of incorrectly predicted error signals in the reordered list.

摘要翻译： 针对要编码的多个像素（或比特平面或灰度代码）中的每一个生成预测误差信号和预测状态信号。 图像误差信号基于多个先前编码的像素数据（或位平面或灰度代码）。 预测状态信号指示预测误差信号在两个概率状态之一中准确的概率。 根据由相​​应的预测状态信号表示的概率状态，将预测误差信号分为两组。 然后根据预定算法对预测误差信号重新排序。 此后，基于在重新排序的列表中出现的错误预测的错误信号，对重新排序的预测误差信号进行游程长度编码。

公开(公告)号：US06230325B1

公开(公告)日：2001-05-08

申请号：US08724819

申请日：1996-10-02

申请人： Kazumoto Iinuma ,  Takanori Sashida

发明人： Kazumoto Iinuma ,  Takanori Sashida

IPC分类号： H04N7173

CPC分类号： H04N7/17318 ,  H04N5/445 ,  H04N7/0882

摘要： The invention provides an information network system and a broadcasting receiving user terminal by which bidirectional communication can be established between a user terminal and a data base center and between the data base center and a broadcasting station so that a user can enjoy a service provided from the data base center and enjoy bidirectional communication in regard to broadcasting. The information network system includes a broadcasting receiver, a user terminal, and a data base center connected to the user terminal by a network. The broadcasting center includes a guide information addition section which adds data base accessing guide information to a broadcasting signal for a program to be transmitted. The user terminal includes a guide information extraction section which extracts the guide information from the broadcasting signal, and a network communication section which accesses a data base of the data base center via the network based on the extracted guide information and user information peculiar to a user of the user terminal and receives a response from the data base center. The data base center includes another network communication section which confirms the guide information and the user information received from the user terminal via the network and then establishes bidirectional communication with the user terminal.

摘要翻译： 本发明提供了一种信息网络系统和广播接收用户终端，通过该广播接收用户终端可以在用户终端与数据库中心之间以及数据中心和广播电台之间建立双向通信，使得用户可以享受从 数据中心，并享受广播方面的双向通信。 信息网络系统包括广播接收机，用户终端和通过网络连接到用户终端的数据库中心。 广播中心包括一个引导信息添加部分，其将数据库访问指南信息添加到要发送的节目的广播信号。 用户终端包括从广播信号中提取引导信息的引导信息提取部分，以及基于所提取的引导信息和用户特有的用户信息经由网络访问数据库中心的数据库的网络通信部 并接收来自数据库中心的响应。 数据库中心包括另一个网络通信部分，其确认通过网络从用户终端接收到的引导信息和用户信息，然后建立与用户终端的双向通信。

公开(公告)号：US4534055A

公开(公告)日：1985-08-06

申请号：US550946

申请日：1983-11-14

申请人： Kazumoto Iinuma

发明人： Kazumoto Iinuma

IPC分类号： G06T9/00 ,  H03M7/40 ,  G10L1/00

CPC分类号： H03M7/40 ,  G06T9/005

摘要： In a code conversion system comprising an encoder and a decoder in combination, the encoder comprises an input terminal for receiving a multi-level time series signal having at least three signal levels subject to a variation of occurrence frequency of levels, a circuit for detecting the highest occurrence frequency signal ("HOFS") level of said multi-level time series signal and generating a first code representative of the run-lengths of said HOFS level, a circuit for generating a second code representative of the individual levels of said multi-level time series signal, and a circuit for combining said codes from said first and second code generation circuits on the time series, and wherein the decoder comprises a circuit for separating the first and second codes and decoding the separated first and second codes into the original multi-level time series signal.

摘要翻译： 在包括编码器和解码器的代码转换系统中，编码器包括用于接收具有受到电平出现频率变化的至少三个信号电平的多电平时间序列信号的输入端子， 产生所述多级时间序列信号的最高出现频率信号（“HOFS”）电平并产生代表所述HOFS电平的行程长度的第一代码，用于产生代表所述多级时间序列信号的各个电平的第二代码的电路， 电平时间序列信号，以及用于以时间序列组合来自所述第一和第二代码产生电路的代码的电路，并且其中解码器包括用于分离第一和第二代码并将分离的第一和第二代码解码为原始数据的电路 多级时间序列信号。

公开(公告)号：US4276544A

公开(公告)日：1981-06-30

申请号：US31987

申请日：1979-04-20

申请人： Kazumoto Iinuma

发明人： Kazumoto Iinuma

IPC分类号： H03M5/04 ,  G06T9/00 ,  H03M7/46 ,  H04L23/00 ,  H04N1/419 ,  H04N7/32 ,  H04N7/12

CPC分类号： H04N19/93 ,  H04N1/419

摘要： Code converting circuits for facsimile and other information communications systems in which run length codes are converted to codes having variable lengths and the variable length codes are converted into a word code train, wherein each word comprises N bits, and the converted word code train is stored or transmitted. The code converting circuit consists of a code converter for converting parallel input codes (run length codes of fixed lengths) into variable length codes, a multiplexer and shift register for converting the variable length codes (and dummy codes where needed) into word length codes of fixed length, a multiplexer for outputting the word length codes to a memory interjecting a synchronizing code at predetermined intervals, and control signal generating circuitry for controlling the various circuit components. A decoding circuit is also disclosed for reconstructing the original run length codes from the word length codes. In addition, a second embodiment is disclosed which uses a parallel signal processing technique and is particularly adapted for encoding and decoding television video signals.

摘要翻译： 用于将游程长度代码转换为具有可变长度的代码和可变长度代码的传真和其他信息通信系统的代码转换电路被转换为字代码串，其中每个字包括N位，并且转换的字代码串被存储 或传输。 代码转换电路包括用于将并行输入代码（固定长度的游程长度代码）转换成可变长度代码的代码转换器，用于将可变长度代码（以及需要的虚拟代码）转换成字长代码的多路复用器和移位寄存器 固定长度，用于将字长代码输出到以预定间隔插入同步码的存储器的多路复用器，以及用于控制各种电路部件的控制信号发生电路。 还公开了一种解码电路，用于从字长码重建原始游程长度码。 此外，公开了使用并行信号处理技术的第二实施例，并且特别适用于对电视视频信号进行编码和解码。

公开(公告)号：US4142205A

公开(公告)日：1979-02-27

申请号：US816992

申请日：1977-07-19

申请人： Kazumoto Iinuma

发明人： Kazumoto Iinuma

IPC分类号： H04N7/36 ,  H04N11/04 ,  H04N9/32

CPC分类号： H04N19/503 ,  H04N11/046

摘要： An interframe encoder for a composite color television signal comprises an inverter for inverting the polarity of the carrier chrominance signal. Responsive to a switching signal synchronized with the frame or line periods, the television signal and the polarity-inverted signal are alternatingly switched into a converted signal in which the polarity of the carrier chrominance signal is inverted in every other frame or line period. The converted signal is interframe encoded. An interframe decoder reproduces the converted signal and the switching signal and comprises an inverter for inverting the polarity of the reproduced carrier chrominance signal. Responsive to the reproduced switching signal, the reproduced and polarity-inverted carrier chrominance signal and the converted signal are switched into a reproduction of the color television signal.

摘要翻译： 用于复合彩色电视信号的帧间编码器包括用于反转载波色度信号的极性的反相器。 响应于与帧或行周期同步的切换信号，电视信号和极性反转信号被交替地切换成其中载波色度信号的极性在每隔一个帧或行周期中反转的转换信号。 经转换的信号进行帧间编码。 帧间解码器再现转换的信号和切换信号，并且包括用于反转重放的载波色度信号的极性的反相器。 响应于再现的切换信号，再现和极性反转的载波色度信号和转换的信号被切换成彩色电视信号的再现。

公开(公告)号：US4475127A

公开(公告)日：1984-10-02

申请号：US351678

申请日：1982-02-23

申请人： Kazumoto Iinuma

发明人： Kazumoto Iinuma

IPC分类号： G06T9/00 ,  H04N1/41

CPC分类号： G06T9/005 ,  H04N1/4105

摘要： In an encoder responsive to a video signal variable between high and low levels, a logic converter logically converts a succession of result signals, derived from the video signal by the use of a predetermined number of halftone threshold levels, into a sequence of converted signals having that run length of logic "0" or "1" level which is longer than that in the result signal succession. The converter may comprise a combination of adders and memory elements to process the consecutive result signals. The converted signal sequence is encoded by an encoding circuit into a data-compression digitized signal. In a decoder for decoding the digitized signal into a reproduction of the result signal succession, a logic inverter comprises a combination of adders and memory elements, similar to that of the converter. The inverter processes, into the reproduction, signals derived from data-expansion decoding of the digitized signal. Preferably, a dither matrix is used to provide the threshold levels.

摘要翻译： 在响应于高电平和低电平之间的视频信号变化的编码器中，逻辑转换器将通过使用预定数量的半色调阈值电平从视频信号导出的一系列结果信号逻辑地转换成具有 逻辑“0”或“1”电平的长度比结果信号继承中的长。 转换器可以包括加法器和存储器元件的组合以处理连续的结果信号。 转换的信号序列由编码电路编码成数据压缩数字化信号。 在用于将数字化信号解码成结果信号继承的再现的解码器中，逻辑反相器包括与转换器类似的加法器和存储器元件的组合。 逆变器对从数字化信号的数据扩展解码得到的信号进行再生。 优选地，使用抖动矩阵来提供阈值水平。

公开(公告)号：US4215375A

公开(公告)日：1980-07-29

申请号：US14508

申请日：1979-02-23

申请人： Touru Usubuchi ,  Kazumoto Iinuma

发明人： Touru Usubuchi ,  Kazumoto Iinuma

IPC分类号： H04N1/41 ,  H04N1/417 ,  H04N1/00

CPC分类号： H04N1/4105 ,  H04N1/417

摘要： A digital facsimile system suitable for the facsimile transmission of newspaper pages having screened picture portions and printed character portions is disclosed. The transmitter receives a digitized facsimile signal which is a train of pel codes formed by scanning a picture to be transmitted. In response to the digitized facsimile signal, a first reference generator produces first pel codes neighboring the present pel code, a second pel code spaced by the pitch of the screened picture from the present pel code, and third pel codes neighboring the second pel code. A ROM is addressed by the first, second and third pel codes to produce a first prediction code for the present pel code. The output of the ROM and the digitized facsimile signal are supplied to an Exclusive OR which provides a prediction error code according to the difference between the first prediction code and the present pel code. A train of prediction errors codes constitutes a prediction error signal which is encoded and transmitted. The receiver receives the encoded prediction error signal and decodes it to reproduce the prediction error signal. Another Exclusive OR produces the present pel code from each error code of the prediction error signal. A second reference code generator produces a second reference code corresponding to the first reference code on the basis of the output of the second Exclusive OR. A second ROM produces a second prediction code corresponding to the first prediction code on the basis of the second reference code and applies the second prediction code to the second Exclusive OR.

摘要翻译： 公开了适用于具有筛选图像部分和打印字符部分的报纸的传真传输的数字传真系统。 发射机接收数字化的传真信号，该数字化的传真信号是通过扫描待传输的图像而形成的一系列像素码。 响应于数字化传真信号，第一参考生成器产生与当前像素码相邻的第一像素码，与当前像素码间隔的屏蔽图像间距的第二像素码以及与第二像素码相邻的第三像素码。 ROM由第一，第二和第三像素码寻址以产生用于当前像素码的第一预测码。 ROM和数字化传真信号的输出被提供给异或，其根据第一预测码和当前像素码之间的差提供预测误差码。 一串预测误差代码构成编码和发送的预测误差信号。 接收机接收编码的预测误差信号，对其进行解码以再现预测误差信号。 另一个异或产生来自预测误差信号的每个错误码的当前像素码。 第二参考码发生器基于第二异或的输出产生对应于第一参考码的第二参考码。 第二ROM基于第二参考码产生对应于第一预测码的第二预测码，并将第二预测码应用于第二异或。