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Extract from the Register of European Patents

EP About this file: EP0444839

EP0444839 - Video signal transmission system and method for coding a video signal [Right-click to bookmark this link]
Former [1991/36]Video signal transmission system and method and apparatus for coding a video signal
[1998/36]
StatusNo opposition filed within time limit
Status updated on  09.07.1999
Database last updated on 12.07.2024
Most recent event   Tooltip09.07.1999No opposition filed within time limitpublished on 25.08.1999 [1999/34]
Applicant(s)For all designated states
Sony Corporation
7-35, Kitashinagawa 6-chome
Shinagawa-ku
Tokyo / JP
[N/P]
Former [1991/36]For all designated states
SONY CORPORATION
7-35, Kitashinagawa 6-chome Shinagawa-ku
Tokyo / JP
Inventor(s)01 / Tahara, Katsumi
c/o Sony Corporation, 7-35 Kitashinagawa 6-chome
Shinagawa-ku Tokyo / JP
02 / Emoto, Seiichi
c/o Sony Corporation, 7-35 Kitashinagawa 6-chome
Shinagawa-ku Tokyo / JP
[1991/36]
Representative(s)Ayers, Martyn Lewis Stanley, et al
J A Kemp
14 South Square
Gray's Inn
London
WC1R 5JJ / GB
[N/P]
Former [1991/36]Ayers, Martyn Lewis Stanley, et al
J.A. KEMP & CO. 14 South Square Gray's Inn
London WC1R 5LX / GB
Application number, filing date91301467.625.02.1991
[1991/36]
Priority number, dateJP1990004484626.02.1990         Original published format: JP 4484690
JP1990004752128.02.1990         Original published format: JP 4752190
JP1990004753128.02.1990         Original published format: JP 4753190
[1991/36]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0444839
Date:04.09.1991
Language:EN
[1991/36]
Type: A3 Search report 
No.:EP0444839
Date:09.02.1994
Language:EN
[1994/06]
Type: B1 Patent specification 
No.:EP0444839
Date:02.09.1998
Language:EN
[1998/36]
Search report(s)(Supplementary) European search report - dispatched on:EP21.12.1993
ClassificationIPC:H04N7/32, H04N7/30, H03H17/02
[1998/36]
CPC:
H04N19/587 (EP,US); H04N19/112 (EP,US); H04N19/126 (EP,US);
H04N19/132 (EP,US); H04N19/159 (EP,US); H04N19/172 (EP,US);
H04N19/176 (EP,US); H04N19/60 (EP,US); H04N19/61 (EP,US);
H04N19/80 (EP,US); H04N19/82 (EP,US); H04N19/124 (EP,US);
H04N19/13 (EP,US); H04N19/146 (EP,US); H04N19/149 (EP,US);
H04N19/15 (EP,US); H04N19/152 (EP,US); H04N19/50 (EP,US);
H04N19/91 (EP,US) (-)
Former IPC [1994/04]H04N7/137, H04N7/133, H03H17/02
Former IPC [1993/32]H04N7/137, H04N7/133
Former IPC [1991/36]H04N7/137
Designated contracting statesDE,   FR,   GB [1991/36]
TitleGerman:Videosignalübertragungssystem und -verfahren zur Kodierung von Videosignalen[1998/36]
English:Video signal transmission system and method for coding a video signal[1998/36]
French:Système de transmission d'un signal vidéo et méthode pour coder un signal vidéo[1998/36]
Former [1991/36]Videosignalübertragungssystem, Verfahren und Einrichtung zur Kodierung von Videosignalen
Former [1991/36]Video signal transmission system and method and apparatus for coding a video signal
Former [1991/36]Système de transmission d'un signal vidéo, méthode et dispositif pour coder un signal vidéo
MiscellaneousEPB 1998/36: (deleted)
EPB 1998/36: (deleted)
EPB 1998/36: (deleted)
EPB 1996/38: Teilanmeldung 96110475.9 eingereicht am 28/06/96
EPB 1996/38: Divisional application 96110475.9 filed on 28/06/96
EPB 1996/38: Demande divisionnaire 96110475.9 déposée le 28/06/96
Examination procedure12.07.1994Examination requested  [1994/36]
07.03.1996Despatch of a communication from the examining division (Time limit: M04)
28.06.1996Reply to a communication from the examining division
19.09.1996Despatch of a communication from the examining division (Time limit: M04)
16.01.1997Reply to a communication from the examining division
22.05.1997Despatch of a communication from the examining division (Time limit: M04)
09.07.1997Reply to a communication from the examining division
10.11.1997Despatch of communication of intention to grant (Approval: Yes)
03.03.1998Communication of intention to grant the patent
28.05.1998Fee for grant paid
28.05.1998Fee for publishing/printing paid
Divisional application(s)EP96110475.9  / EP0739142
EP96110477.5  / EP0739143
Opposition(s)03.06.1999No opposition filed within time limit [1999/34]
Fees paidRenewal fee
08.02.1993Renewal fee patent year 03
08.02.1994Renewal fee patent year 04
10.02.1995Renewal fee patent year 05
08.02.1996Renewal fee patent year 06
10.02.1997Renewal fee patent year 07
11.02.1998Renewal fee patent year 08
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Documents cited:SearchDE3437182  [ ] (TELEFUNKEN FERNSEH & RUNDFUNK [DE]);
 EP0197446  [ ] (SIEMENS AG [DE]);
 US4731664  [ ] (NISHIWAKI MITSUO [JP], et al);
 EP0323362  [ ] (THOMSON GRAND PUBLIC [FR])
    [ ] - SIGNAL PROCESSING OF HDTV, II , 30 AUGUST- 1 SEPTEMBER 1989 TURIN (IT) pages 131 - 137 ZIEGLER 'Hierarchical motion estimation using the phase correlation method in 140 Mbit/s HDTV-coding'
    [ ] - IEEE TRANSACTIONS ON COMMUNICATIONS vol. 24, no. 10, October 1976, NEW YORK US pages 1175 - 1180 YASUDA ET AL. '1.544-Mbits/s Transmission of TV Signals by interframe Coding System'
    [ ] - IEEE/IEICE GLOBAL TELECOMMUNICATIONS CONFERENCE vol. 1, 18 November 1987, TOKYO (JP) pages 2.4.1 - 2.4.5 WATANABE ET AL. 'A 64 kb/s Video Coding Equipment'
    [ ] - CCITT SGXV WORKING PARTY XV/1 DOCUMENT 141 12 September 1986, pages 2 - 15 'SPECIFICATIONS FOR REFERENCE MODEL VERSION 2 (RM2)'
    [ ] - IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS vol. SAC5, no. 7, August 1987, pages 1090 - 1099 YOICHI KATO ET AL. 'A MOTION PICTURE CODING ALGORITHM USING ADAPTIVE DCT ENCODING BASED ON COEFFICIENT POWER DISTRIBUTION CLASSIFICATION'
ExaminationUS4328425
 GB2218873
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.