FR868847A - Perfectionnements aux dispositifs de télévision duplex - Google Patents

Perfectionnements aux dispositifs de télévision duplex

Info

Publication number
FR868847A
FR868847A FR868847DA FR868847A FR 868847 A FR868847 A FR 868847A FR 868847D A FR868847D A FR 868847DA FR 868847 A FR868847 A FR 868847A
Authority
FR
France
Prior art keywords
enhancements
duplex
television devices
television
devices
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
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR868847A publication Critical patent/FR868847A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—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
    • 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
    • H04N7/144—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display camera and display on the same optical axis, e.g. optically multiplexing the camera and display for eye to eye contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)
FR868847D 1939-01-15 1940-12-31 Perfectionnements aux dispositifs de télévision duplex Expired FR868847A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET51608D DE735598C (de) 1939-01-15 1939-01-15 Gegenfernseheinrichtung

Publications (1)

Publication Number Publication Date
FR868847A true FR868847A (fr) 1942-01-17

Family

ID=7563705

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868847D Expired FR868847A (fr) 1939-01-15 1940-12-31 Perfectionnements aux dispositifs de télévision duplex

Country Status (2)

Country Link
DE (1) DE735598C (fr)
FR (1) FR868847A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530275A (en) * 1946-03-16 1950-11-14 Weingarten Joseph Cathode-ray tube image control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530275A (en) * 1946-03-16 1950-11-14 Weingarten Joseph Cathode-ray tube image control

Also Published As

Publication number Publication date
DE735598C (de) 1943-05-19

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