GB8828394D0 - Video telephones - Google Patents

Video telephones

Info

Publication number
GB8828394D0
GB8828394D0 GB8828394A GB8828394A GB8828394D0 GB 8828394 D0 GB8828394 D0 GB 8828394D0 GB 8828394 A GB8828394 A GB 8828394A GB 8828394 A GB8828394 A GB 8828394A GB 8828394 D0 GB8828394 D0 GB 8828394D0
Authority
GB
United Kingdom
Prior art keywords
video telephones
telephones
video
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB8828394A
Other versions
GB2211048A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Sony Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP62158884A external-priority patent/JPS644185A/en
Application filed by Nippon Telegraph and Telephone Corp, Sony Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to GB8828394A priority Critical patent/GB2211048A/en
Publication of GB8828394D0 publication Critical patent/GB8828394D0/en
Publication of GB2211048A publication Critical patent/GB2211048A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/587—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
GB8828394A 1987-06-26 1988-12-06 Video telephones Withdrawn GB2211048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8828394A GB2211048A (en) 1987-06-26 1988-12-06 Video telephones

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62158884A JPS644185A (en) 1987-06-26 1987-06-26 Transmitter for still picture
GB8828394A GB2211048A (en) 1987-06-26 1988-12-06 Video telephones

Publications (2)

Publication Number Publication Date
GB8828394D0 true GB8828394D0 (en) 1989-01-05
GB2211048A GB2211048A (en) 1989-06-21

Family

ID=26294703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8828394A Withdrawn GB2211048A (en) 1987-06-26 1988-12-06 Video telephones

Country Status (1)

Country Link
GB (1) GB2211048A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979028A (en) * 1988-05-30 1990-12-18 Sony Corporation Video telephone
KR930008445Y1 (en) * 1989-07-31 1993-12-22 주식회사 금성사 Selecting control circuit of video-phone
KR930003963B1 (en) * 1990-08-27 1993-05-17 주식회사 금성사 Picture image signal transmission apparatus
JP3796756B2 (en) 1996-08-30 2006-07-12 ソニー株式会社 Still image moving image recording apparatus and still image moving image recording method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079413A (en) * 1975-07-29 1978-03-14 Kabushiki Kaisha Daini Seikosha Portable electronic timepiece with selective display of time signal and television image
NL7810759A (en) * 1978-10-27 1980-04-29 Bog International Automatic Sy SYSTEM FOR TRANSFERRING VISUAL INFORMATION ON A LOW-FREQUENCY SYSTEM, SUCH AS A TELEPHONE SYSTEM.

Also Published As

Publication number Publication date
GB2211048A (en) 1989-06-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)