GB1413736A - Video-telephone systems - Google Patents

Video-telephone systems

Info

Publication number
GB1413736A
GB1413736A GB4685173A GB4685173A GB1413736A GB 1413736 A GB1413736 A GB 1413736A GB 4685173 A GB4685173 A GB 4685173A GB 4685173 A GB4685173 A GB 4685173A GB 1413736 A GB1413736 A GB 1413736A
Authority
GB
United Kingdom
Prior art keywords
camera tube
frequency
output
video
divider
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
GB4685173A
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.)
Siemens Corp
Original Assignee
Siemens 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
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of GB1413736A publication Critical patent/GB1413736A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/81—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Closed-Circuit Television Systems (AREA)
GB4685173A 1972-10-27 1973-10-08 Video-telephone systems Expired GB1413736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2252855A DE2252855C2 (de) 1972-10-27 1972-10-27 Schaltungsanordnung für Bildfernsprecher zur Beseitigung von Störungen auf dem Bildschirm

Publications (1)

Publication Number Publication Date
GB1413736A true GB1413736A (en) 1975-11-12

Family

ID=5860269

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4685173A Expired GB1413736A (en) 1972-10-27 1973-10-08 Video-telephone systems

Country Status (10)

Country Link
JP (1) JPS5245166B2 (enExample)
AT (1) AT334989B (enExample)
BE (1) BE806574A (enExample)
CH (1) CH562542A5 (enExample)
DE (1) DE2252855C2 (enExample)
FR (1) FR2204931A1 (enExample)
GB (1) GB1413736A (enExample)
IT (1) IT995992B (enExample)
LU (1) LU68686A1 (enExample)
NL (1) NL7314563A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175172A (en) * 1985-04-30 1986-11-19 British Broadcasting Corp Video cameras

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175172A (en) * 1985-04-30 1986-11-19 British Broadcasting Corp Video cameras

Also Published As

Publication number Publication date
DE2252855C2 (de) 1974-11-28
LU68686A1 (enExample) 1974-01-08
CH562542A5 (enExample) 1975-05-30
IT995992B (it) 1975-11-20
DE2252855B1 (de) 1974-05-02
NL7314563A (enExample) 1974-05-01
JPS4977522A (enExample) 1974-07-26
FR2204931A1 (enExample) 1974-05-24
JPS5245166B2 (enExample) 1977-11-14
AT334989B (de) 1977-02-10
ATA851273A (de) 1976-06-15
BE806574A (fr) 1974-04-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee