GB1388910A - Videotelephone terminal - Google Patents

Videotelephone terminal

Info

Publication number
GB1388910A
GB1388910A GB5400472A GB5400472A GB1388910A GB 1388910 A GB1388910 A GB 1388910A GB 5400472 A GB5400472 A GB 5400472A GB 5400472 A GB5400472 A GB 5400472A GB 1388910 A GB1388910 A GB 1388910A
Authority
GB
United Kingdom
Prior art keywords
deflection frequencies
video
telephone system
anode voltage
afterglow phosphor
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
GB5400472A
Other languages
English (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.)
ITALIANA TELCOMMUNICAZIONI SIE
Italtel SpA
Original Assignee
ITALIANA TELCOMMUNICAZIONI SIE
Societa Italiana Telecomunicazioni Siemens SpA
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 ITALIANA TELCOMMUNICAZIONI SIE, Societa Italiana Telecomunicazioni Siemens SpA filed Critical ITALIANA TELCOMMUNICAZIONI SIE
Publication of GB1388910A publication Critical patent/GB1388910A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
GB5400472A 1972-02-17 1972-11-22 Videotelephone terminal Expired GB1388910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2068372A IT951775B (it) 1972-02-17 1972-02-17 Terminale per videotelefono

Publications (1)

Publication Number Publication Date
GB1388910A true GB1388910A (en) 1975-03-26

Family

ID=11170505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5400472A Expired GB1388910A (en) 1972-02-17 1972-11-22 Videotelephone terminal

Country Status (7)

Country Link
JP (1) JPS4895117A (fr)
DE (1) DE2305986C2 (fr)
FR (1) FR2172637A7 (fr)
GB (1) GB1388910A (fr)
IT (1) IT951775B (fr)
NL (1) NL7301972A (fr)
SE (1) SE378340B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202094C1 (de) * 1982-01-23 1983-09-29 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Endgerät für Bildkommunikation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491200A (en) * 1966-09-21 1970-01-20 United Aircraft Corp Variable scan rate high resolution image transmission system
SE325300B (fr) * 1968-10-10 1970-06-29 Ericsson Telefon Ab L M
DE2009523C3 (de) * 1970-02-28 1975-07-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und Einrichtung zur Beobachtung einer Szene

Also Published As

Publication number Publication date
NL7301972A (fr) 1973-08-21
IT951775B (it) 1973-07-10
FR2172637A7 (fr) 1973-09-28
JPS4895117A (fr) 1973-12-06
DE2305986C2 (de) 1981-11-26
DE2305986A1 (de) 1973-09-13
SE378340B (fr) 1975-08-25

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Legal Events

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