CA1044797A - Systemes de television - Google Patents

Systemes de television

Info

Publication number
CA1044797A
CA1044797A CA205,846A CA205846A CA1044797A CA 1044797 A CA1044797 A CA 1044797A CA 205846 A CA205846 A CA 205846A CA 1044797 A CA1044797 A CA 1044797A
Authority
CA
Canada
Prior art keywords
characters
received
memory device
digitized
information
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
CA205,846A
Other languages
English (en)
Other versions
CA205846S (en
Inventor
Peter R. Hutt
Alan R. Blake
Gunter Von Cavallar
Brian N. Douglas
Philip J. Dodds
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.)
Independent Broadcasting Authority
Original Assignee
Independent Broadcasting Authority
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
Application filed by Independent Broadcasting Authority filed Critical Independent Broadcasting Authority
Application granted granted Critical
Publication of CA1044797A publication Critical patent/CA1044797A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04N7/087—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 with signal insertion during the vertical blanking interval only
    • H04N7/088—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 with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0882—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 with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of character code signals, e.g. for teletext

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Image Generation (AREA)
CA205,846A 1973-07-30 1974-07-29 Systemes de television Expired CA1044797A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3620673A GB1486772A (en) 1973-07-30 1973-07-30 Television systems

Publications (1)

Publication Number Publication Date
CA1044797A true CA1044797A (fr) 1978-12-19

Family

ID=10385959

Family Applications (1)

Application Number Title Priority Date Filing Date
CA205,846A Expired CA1044797A (fr) 1973-07-30 1974-07-29 Systemes de television

Country Status (6)

Country Link
JP (2) JPS5072518A (fr)
CA (1) CA1044797A (fr)
DE (1) DE2435794C2 (fr)
FR (1) FR2239832A1 (fr)
GB (1) GB1486772A (fr)
IT (1) IT1017734B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1478695A (en) * 1974-09-26 1977-07-06 Texas Instruments Ltd Data handling apparatus
JPS51131223A (en) * 1975-05-08 1976-11-15 Nippon Telegr & Teleph Corp <Ntt> Type printing control method for ink jet printer
GB1526232A (en) * 1975-10-08 1978-09-27 Texas Instruments Ltd Digital data storage systems
US4025851A (en) * 1975-11-28 1977-05-24 A.C. Nielsen Company Automatic monitor for programs broadcast
GB1568378A (en) * 1976-01-30 1980-05-29 Micro Consultants Ltd Video processing system
DE2760394C2 (fr) * 1976-09-06 1988-12-22 Etablissement Public De Diffusion Dit "Telediffusion De France", Montrouge, Fr
JPS55156485A (en) * 1979-05-23 1980-12-05 Sony Corp Character broadcast receiver
NL8002412A (nl) * 1980-04-25 1981-11-16 Philips Nv Informatie-overdracht in wederzijdse richting over een "long distance video interface" (ldvi) kabel.
DE3047597C2 (de) * 1980-12-17 1984-08-16 Siemens AG, 1000 Berlin und 8000 München Anordnung zum Verteilen von Information und zum raschen und gezielten Auffinden von einen Adressenteil aufweisenden Informationseinheiten
JPS6145279A (ja) * 1984-08-09 1986-03-05 株式会社東芝 スム−ジング回路
JPS61142591A (ja) * 1984-12-13 1986-06-30 Toshiba Corp 半導体記憶装置
US4953027A (en) * 1989-04-24 1990-08-28 Motorola Inc. OSD in a TV receiver including a window, smoothing and edge enhancing
US5333135A (en) * 1993-02-01 1994-07-26 North American Philips Corporation Identification of a data stream transmitted as a sequence of packets

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL153347B (nl) * 1968-02-16 1977-05-16 Philips Nv Inrichting voor het op een televisiescherm weergeven van digitale informatie.
DE2058681C3 (de) * 1970-11-28 1974-04-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Im Fernsehmodus arbeitende Einrichtung zum Senden, Empfangen und Darstellen kodierter Informationen

Also Published As

Publication number Publication date
IT1017734B (it) 1977-08-10
DE2435794A1 (de) 1975-03-13
GB1486772A (en) 1977-09-21
AU7176874A (en) 1976-01-29
JPS57159186A (en) 1982-10-01
JPS5072518A (fr) 1975-06-16
DE2435794C2 (de) 1983-09-08
FR2239832A1 (fr) 1975-02-28

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Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 19951219