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1. 发明公开

EP0200269A3 Method and apparatus for deriving frame interval signals 失效转让
标题翻译：用于传送帧间隔信号的方法和装置
公开(公告)号：EP0200269A3
公开(公告)日：1988-03-30
申请号：EP86200709
申请日：1986-04-25
申请人： PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED , N.V. Philips' Gloeilampenfabrieken
发明人： Kirkland, Robert Neil
IPC分类号： H04N07/13
CPC分类号： H04N7/083
摘要： Serial data from a C-MAC, D-MAC or D2-MAC television signal is applied over line (1) to a serial data to error conversion unit (2) which produces a 3-bit error signal when the applied data is compared with a Wl sync. word. The error signal is applied to comparators (6 and 7) whose other inputs receive a maximum or minimum error dependent signal to produce an output when the number of errors lies within certain requirements. These outputs are latched in a 2-bit latch (8) to produce line pulses on receipt of an acceptable sync. word at an appropriate time, the outputs of the latch (8) being applied to two shift registers (9 and 10). The shift registers (9 and 10) produce outputs P1, P2, P3, P4 over four line periods with the P3, P4 outputs of shift register (10) and the P1, P2 outputs of shift register (9) being applied to respective inputs of a first AND-gate (11) whilst the remaining outputs are applied to respective inputs of a second AND-gate (12) which gates produce an output when there is coincidence alternately at the end of each frame period. The outputs are applied to respective inputs of an OR-gate (13) to derive a frame flywheel and sync. acquisition unit (14) at frame frequency.

2. 发明公开

EP0181321A3 Method and device for the transmission of a signal of a picture element 失效
标题翻译：用于传输图像元素信号的方法和装置
公开(公告)号：EP0181321A3
公开(公告)日：1987-06-10
申请号：EP85890276
申请日：1985-11-07
申请人： MUPID COMPUTER GESELLSCHAFT m.b.H.
发明人： Pölzler, Ernst, Dipl.-Ing. , Posch, Reinhard, Univ. Prof. Dr.
IPC分类号： H04N07/13
CPC分类号： H04N19/587 , G06F3/005
摘要： Eine Videokamera (2) ist mit einem Bildschirmgerät (4) synchronisiert. Ihr Ausgangssignal wird auf Anforderung eines Mikrocomputers (3) mit Hilfe eines Analogspeichers (5) und eines Analog/Digital-Wandlers (6) über einen Datenkanal (10) an den Mikrocomputer (3) übertragen. Durch den Zeitpunkt der Übertragung ist die Ursprungsposition des Bildpunktes (1) festgelegt. Der Mikrocomputer (3) stellt den Bildpunkt (1) am Bildschirmgerät (4) zeitrichtig dar. Der Übertragungsvorgang ist von der eigentlichen Bilderstellung unabhängig und die Anzahl der je Abtastvorgang übertrage nen Bildpunkte (1) ist frei wählbar. Somit kann auch mit einfachen, langsamen Bauteilen eine Bilddigitalisierung in guter Qualität erfolgen.

3. 发明公开

EP0149804A3 Method of determining the exact length of a bundle of errors 失效
标题翻译：确定错误码的精确长度的方法
公开(公告)号：EP0149804A3
公开(公告)日：1987-01-21
申请号：EP84115593
申请日：1984-12-17
申请人： Siemens Aktiengesellschaft
发明人： Strehl, Herbert, Dipl.-Ing.
IPC分类号： H04N07/13
CPC分类号： H03M13/17
摘要： Verfahren zur Feststellung der genauen Fehlerbündel länge bei der durch einen fehlerkorrigierenden Blockcode gesicherten Ubertragung von Bildsignalen, bei dem empfangsseitig die korrigierten Bits mit entsprechend verzö gerten unkorrigierten Bits verglichen werden und die bei Nichtübereinstimmung erzeugten Fehlersignale ausgewertet werden.

4. 发明公开

EP0118754A3 Method of digitally transmitting television pictures 有权
标题翻译：数字传输电视图像的方法
公开(公告)号：EP0118754A3
公开(公告)日：1985-11-13
申请号：EP84101249
申请日：1984-02-07
申请人： Siemens Aktiengesellschaft
发明人： Schlichte, Max, Dr.-Ing.
IPC分类号： H04N09/02 , H04N07/13
CPC分类号： H04N19/60

5. 发明公开

EP0090236A3 System for the digital transmission of television picture signals with reduced redundancy 失效
标题翻译：减少冗余电视图像信号的数字传输系统
公开(公告)号：EP0090236A3
公开(公告)日：1985-10-30
申请号：EP83102467
申请日：1983-03-12
申请人： International Standard Electric Corporation , Standard Elektrik Lorenz Aktiengesellschaft
发明人： Hentschke, Siegbert, Dr.
IPC分类号： H04N07/13 , H04N11/04
CPC分类号： H04N19/59 , H04N11/042

6. 发明公开

EP0141721A3 Receiving device in a transmission system for asynchronous video information 有权
标题翻译：在异步视频信息传输系统中接收设备
公开(公告)号：EP0141721A3
公开(公告)日：1985-07-03
申请号：EP84402112
申请日：1984-10-19
申请人： SOCIETE ANONYME DE TELECOMMUNICATIONS
发明人： Devimeux, Daniel P. , Jolivet, Jean-Claude R.
IPC分类号： H04N07/13
CPC分类号： H04N21/4302 , H04N19/152 , H04N19/50 , H04N21/4307 , H04N21/44004 , H04N21/4402

7. 发明公开

EP0098198A3 Method and system for data rate compression of data transmitted between at least a transmitter and a receiver of television pictures 失效
标题翻译：用于数据传输的数据速率压缩的方法和系统和电视图像的接收器
公开(公告)号：EP0098198A3
公开(公告)日：1985-01-23
申请号：EP83401226
申请日：1983-06-14
申请人： THOMSON-CSF
发明人： Catros, Jean-Yves
IPC分类号： H04B12/04 , H04N07/13
CPC分类号： H04B14/046 , H04N19/593 , H04N19/90

8. 发明公开

EP0241958A3 Broadband/narrow-band switching network of the time-space-time type and time and space switching stages for broadband/narrow-band channels 失效
标题翻译：宽带/窄带通道的时空类型和时间和空间切换阶段的宽带/窄带切换网络
公开(公告)号：EP0241958A3
公开(公告)日：1988-01-20
申请号：EP87200391
申请日：1987-03-04
申请人： AT&T en Philips Telecommunicatiebedrijven B.V. , AT&T and Philips Telecommunications B.V.
发明人： Van Baardewijk, Johannes , Bos, Marinus Anton
IPC分类号： H04N11/04 , H04N07/13
CPC分类号： H04Q11/0478 , H04J2203/0003
摘要： The invention relates to a switching system for a broadband ISDN-network by means of which signals can be transmitted with a large variety of bit rates. In addition to 64 kbit/s, 144 kbit/s and 2 Mbit/s narrow-band channels for inter alia telephony, data, video-information, broadband channels for, for example, broadcast-TV having bit rates from 35-70 Mbit/s are switched through. For both signal categories a common switching system of the TST-type is utilised, which avoids the necessity of providing a multiplexer for each subscriber. The control of the time switching stages and the space switching stage forming part of the switching system is divided in a control for the broadband channels and a control for the narrow-band channels. Thus, a simple, effective control of the switching system is realised which operates at a low rate whenever possible.

9. 发明公开

EP0207774A3 Block encoder 失效
标题翻译：块编码器
公开(公告)号：EP0207774A3
公开(公告)日：1988-01-20
申请号：EP86305072
申请日：1986-06-30
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Juri, Tatsuro , Iketani, Akira , Yamamitsu, Chojuro , Ide, Akifumi
IPC分类号： H04N07/133 , H04N07/13
CPC分类号： H04N19/649 , H04N19/154 , H04N19/30 , H04N19/60 , H04N19/62
摘要： A block encoder comprises first block generating means (2) for constituting a three-dimensional large-size block, and a plurality of second block generating means (3, 4; 12, 13, 14, 16) for dividing the large size block into small size blocks. The small size blocks of two dimensions and three dimensions are changed over adaptively in dependence on image intorma- tion.

10. 发明公开

EP0135255A3 Inter-frame encoding/decoding equipment provided with a system for detecting a transmission error 失效
标题翻译：用于检测传输错误的系统提供的帧间编码/解码设备
公开(公告)号：EP0135255A3
公开(公告)日：1988-01-13
申请号：EP84304062
申请日：1984-06-15
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION , FUJITSU LIMITED , NEC CORPORATION
发明人： Kuroda, Hideo , Mukawa, Naoki , Hiraoka, Makoto , Matsuda, Kiichi , Nishiwaki, Mitsuo , Tsugane, Shuzo
IPC分类号： H04N07/13
CPC分类号： H04N19/895 , H04N19/50
摘要： An inter-frame encoding/decoding equipment for television signals consists of inter-frame encoding equipment encoding a difference between television signals and the output of a frame memory and inter-frame decoding equipment which receives an encoded signal sent from the inter-frame encoding device via a transmission line, which decodes by adding the output of the frame memory to the encoded signal. The inter-frame encoding equipment is provided with a first operation circuit which operates the remainders obtained by dividing, by a predetermined value, the number of bits of logic "1" in the bit groups into which the output or the input of the frame memory is divided by a predetermined unit. The inter-frame decoding equipment is provided with a second operation circuit which operates the remainders obtaiend by dividing, by a predetermined value, the number of bits of logic "1" in the bit groups into which the output or the input ot the frame memory is divided by a predetermined unit. The inter-frame decoding equipment is further provided with a comparator circuit which compares and checks the values operated by the first and the second operation circuits to detect a transmission error.

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