GB2157125B - Compatible high definition tv - Google Patents

Compatible high definition tv

Info

Publication number
GB2157125B
GB2157125B GB08510270A GB8510270A GB2157125B GB 2157125 B GB2157125 B GB 2157125B GB 08510270 A GB08510270 A GB 08510270A GB 8510270 A GB8510270 A GB 8510270A GB 2157125 B GB2157125 B GB 2157125B
Authority
GB
United Kingdom
Prior art keywords
high definition
compatible high
compatible
definition
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.)
Expired
Application number
GB08510270A
Other versions
GB8510270D0 (en
GB2157125A (en
Inventor
Robert Norman Hurst
Kerns Harrington Powers
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.)
RCA Corp
Original Assignee
RCA 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 US06/424,232 external-priority patent/US4533951A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of GB8510270D0 publication Critical patent/GB8510270D0/en
Publication of GB2157125A publication Critical patent/GB2157125A/en
Application granted granted Critical
Publication of GB2157125B publication Critical patent/GB2157125B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • H04N11/26—High-definition television systems involving two-channel transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • H04N11/28—High-definition television systems involving bandwidth reduction, e.g. subsampling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
GB08510270A 1982-02-24 1985-04-23 Compatible high definition tv Expired GB2157125B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35200182A 1982-02-24 1982-02-24
US06/424,232 US4533951A (en) 1982-09-27 1982-09-27 System for generating and displaying a compatible high definition television signal by progressive scanning

Publications (3)

Publication Number Publication Date
GB8510270D0 GB8510270D0 (en) 1985-05-30
GB2157125A GB2157125A (en) 1985-10-16
GB2157125B true GB2157125B (en) 1986-07-30

Family

ID=26997357

Family Applications (4)

Application Number Title Priority Date Filing Date
GB08303800A Expired GB2115641B (en) 1982-02-24 1983-02-11 Compatible high definition television system
GB08510269A Withdrawn GB2157124A (en) 1982-02-24 1985-04-23 Compatible high definition television system
GB08510270A Expired GB2157125B (en) 1982-02-24 1985-04-23 Compatible high definition tv
GB08515709A Expired GB2161669B (en) 1982-02-24 1985-06-20 Television systems

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB08303800A Expired GB2115641B (en) 1982-02-24 1983-02-11 Compatible high definition television system
GB08510269A Withdrawn GB2157124A (en) 1982-02-24 1985-04-23 Compatible high definition television system

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB08515709A Expired GB2161669B (en) 1982-02-24 1985-06-20 Television systems

Country Status (4)

Country Link
JP (3) JPH02243075A (en)
DE (4) DE3348375C2 (en)
GB (4) GB2115641B (en)
HK (4) HK65191A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204042A1 (en) * 1985-06-05 1986-12-10 Jerome Hal Lemelson Television system and method for transmitting a television signal
GB2138238B (en) * 1983-03-02 1987-07-08 British Broadcasting Corp High definition video signal transmission
JPS6162286A (en) * 1984-09-04 1986-03-31 Univ Nagoya Picture signal band compressing system
GB2194409B (en) * 1986-01-14 1990-08-15 British Broadcasting Corp Video transmission systems
GB8620110D0 (en) * 1986-08-19 1986-10-01 British Broadcasting Corp Video transmission system
FR2598275A1 (en) * 1986-04-30 1987-11-06 Thomson Csf Compatible method of producing high-resolution colour television signals and implementation device
US4916525A (en) * 1988-08-29 1990-04-10 Hughes Aircraft Company High definition TV system
DE19517357C1 (en) * 1995-05-11 1996-11-14 Ldt Gmbh & Co Method and device for processing a video image
DE19517356C1 (en) * 1995-05-11 1996-11-28 Ldt Gmbh & Co Video system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB871155A (en) * 1957-08-15 1961-06-21 Sylvania Thorn Colour Television Laboratories Ltd Improvements in and relating to colour television receivers
GB864233A (en) * 1959-01-19 1961-03-29 Sylvania Thorn Colour Television Laboratories Ltd Improvements in or relating to television picture display devices
GB850024A (en) * 1959-04-06 1960-09-28 Sylvania Thorn Colour Television Laboratories Ltd Improvements in or relating to television systems
GB926798A (en) * 1960-10-26 1963-05-22 Marconi Wireless Telegraph Co Improvements in or relating to television systems
JPS50104520A (en) * 1974-01-17 1975-08-18
JPS5436809B2 (en) * 1974-10-16 1979-11-12
GB1548458A (en) * 1975-07-07 1979-07-18 Rohm & Haas Bis (vinylbenzyl) monomers
DE2938349C2 (en) * 1979-09-21 1983-05-26 Aeg-Telefunken Ag, 1000 Berlin Und 6000 Frankfurt Circuit arrangement for a compatible increase in resolution in television systems
GB2101835B (en) * 1981-07-09 1985-10-09 British Broadcasting Corp Colour television systems
US4429327A (en) * 1981-07-31 1984-01-31 Rca Corporation Compatible television system with increased vertical resolution

Also Published As

Publication number Publication date
JPH02243077A (en) 1990-09-27
GB2161669B (en) 1986-08-06
GB2115641B (en) 1986-08-06
DE3306328A1 (en) 1983-09-01
GB2161669A (en) 1986-01-15
GB8510270D0 (en) 1985-05-30
GB2115641A (en) 1983-09-07
HK65091A (en) 1991-08-23
GB2157124A (en) 1985-10-16
DE3306328C2 (en) 1991-10-02
JPH0544236B2 (en) 1993-07-05
HK65191A (en) 1991-08-23
DE3348373C2 (en) 1992-01-09
GB8510269D0 (en) 1985-05-30
GB8303800D0 (en) 1983-03-16
DE3348374C2 (en) 1992-01-09
HK64991A (en) 1991-08-23
HK64891A (en) 1991-08-23
GB2157124B (en) 1900-01-01
JPH02243075A (en) 1990-09-27
DE3348375C2 (en) 1991-10-02
GB8515709D0 (en) 1985-07-24
GB2157125A (en) 1985-10-16
JPH02243076A (en) 1990-09-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940211