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FR914843A - - Google Patents

Info

Publication number
FR914843A
FR914843A FR914843DA FR914843A FR 914843 A FR914843 A FR 914843A FR 914843D A FR914843D A FR 914843DA FR 914843 A FR914843 A FR 914843A
Authority
FR
France
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
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.)
Publication date
Application granted granted Critical
Publication of FR914843A publication Critical patent/FR914843A/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
    • 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)
  • Optical Communication System (AREA)
FR914843D 1944-06-20 Expired FR914843A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US541155A US2420198A (en) 1944-06-20 1944-06-20 Two-way television communication unit

Publications (1)

Publication Number Publication Date
FR914843A true FR914843A (fr) 1900-01-01

Family

ID=24158400

Family Applications (1)

Application Number Title Priority Date Filing Date
FR914843D Expired FR914843A (fr) 1944-06-20

Country Status (2)

Country Link
US (1) US2420198A (fr)
FR (1) FR914843A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2131787A1 (fr) * 1970-10-22 1972-11-17 Matra Engins
FR2621197A1 (fr) * 1987-09-25 1989-03-31 Guichard Jacques Terminal de communication visuelle et sonore comportant un dispositif d'eclairage d'appoint
US5142562A (en) * 1987-09-25 1992-08-25 Jacques Guichard Sound and vision communications terminal including an auxiliary lighting device

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504949A (en) * 1946-01-19 1950-04-25 Foufounis Jean Theodore Self-view finder for photography
BE478283A (fr) * 1946-12-17
GB632726A (en) * 1947-07-04 1949-12-05 Nathaniel Quentin Lawrence View finder for television cameras
US2537173A (en) * 1948-02-19 1951-01-09 Rauland Corp Television intercommunication system
US2739257A (en) * 1948-10-15 1956-03-20 Sheldon Edward Emanuel Device for x-ray motion pictures
US2601441A (en) * 1949-11-12 1952-06-24 Leonard Jean Means for broadcasting television performances
US2704008A (en) * 1951-04-06 1955-03-15 Freeman H Owens Prefocused slide and card holder for television projectors
US2676243A (en) * 1951-10-16 1954-04-20 Myers Carmel Television lighting apparatus
US2698356A (en) * 1951-10-17 1954-12-28 Paul A Roos Combined motion-picture and television camera
US2711667A (en) * 1952-01-30 1955-06-28 Reflectone Corp Prompting device
US2788390A (en) * 1952-10-16 1957-04-09 Sheldon Edward Emanuel Device for examination of inaccessible parts
US2845485A (en) * 1952-11-13 1958-07-29 Sheldon Edward Emanuel Television camera for examination of internal structures
US2926559A (en) * 1953-04-06 1960-03-01 Jayo Corp Prompting apparatus for cameras
US2753758A (en) * 1953-12-31 1956-07-10 Joseph B Walker Oblique image superimposition projection devices
BE541664A (fr) * 1954-09-30
US2883902A (en) * 1954-10-14 1959-04-28 Oppenheimer Jess Prompting apparatus
US2934601A (en) * 1955-07-18 1960-04-26 Oppenheimer Jess Closed circuit television system and method of operation
US2976356A (en) * 1955-09-09 1961-03-21 Thompson Ramo Wooldridge Inc Slow sweep television system
US2796801A (en) * 1955-12-05 1957-06-25 Reflectone Corp Prompting device
US2909600A (en) * 1956-07-26 1959-10-20 Bell Telephone Labor Inc Two-way television over telephone lines
US3116365A (en) * 1961-12-18 1963-12-31 Bell Telephone Labor Inc Alignment device
US3482040A (en) * 1966-02-11 1969-12-02 John F Brinster Image transmission system
US3495908A (en) * 1966-12-29 1970-02-17 Clare H Rea Visual telephone subscriber alignment apparatus
US3974337A (en) * 1967-10-24 1976-08-10 Matsushita Electric Industrial Co., Ltd. FM television telephone system
GB1236776A (en) * 1967-10-24 1971-06-23 Matsushita Electric Ind Co Ltd Television telephone system
JPS56119586A (en) * 1980-02-25 1981-09-19 Suzuyo Tanigaki Picture display and image pickup device
DE3431902A1 (de) * 1984-08-30 1986-03-13 Standard Elektrik Lorenz Ag, 7000 Stuttgart Teilnehmergeraet fuer bildfernsprechen
US4821307A (en) * 1987-02-10 1989-04-11 Flint Iii Paul L Image splitter for two-way imaging apparatus
US5639151A (en) * 1996-02-16 1997-06-17 Mcnelley; Steve H. Pass-through reflective projection display
RU2225025C2 (ru) * 2000-12-06 2004-02-27 ОПТИВА, Инк. Жидкокристаллическое устройство отображения информации
US7119829B2 (en) 2003-07-31 2006-10-10 Dreamworks Animation Llc Virtual conference room
US8208007B2 (en) * 2004-04-21 2012-06-26 Telepresence Technologies, Llc 3-D displays and telepresence systems and methods therefore
US7057637B2 (en) * 2004-04-21 2006-06-06 White Peter Mcduffie Reflected backdrop for communications systems
US8599239B2 (en) 2004-04-21 2013-12-03 Telepresence Technologies, Llc Telepresence systems and methods therefore
US7515174B1 (en) 2004-12-06 2009-04-07 Dreamworks Animation L.L.C. Multi-user video conferencing with perspective correct eye-to-eye contact
US8654234B2 (en) * 2009-07-26 2014-02-18 Massachusetts Institute Of Technology Bi-directional screen
US9628754B2 (en) 2015-04-02 2017-04-18 Telepresence Technologies, Llc TelePresence architectural systems and methods therefore

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1932253A (en) * 1926-10-01 1933-10-24 Bell Telephone Labor Inc Television system
FR743655A (fr) * 1931-03-04 1933-04-03
US2308381A (en) * 1939-12-29 1943-01-12 Bell Telephone Labor Inc Two-way television transmission
US2315784A (en) * 1941-11-25 1943-04-06 Rca Corp Electrical circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2131787A1 (fr) * 1970-10-22 1972-11-17 Matra Engins
FR2621197A1 (fr) * 1987-09-25 1989-03-31 Guichard Jacques Terminal de communication visuelle et sonore comportant un dispositif d'eclairage d'appoint
EP0310477A1 (fr) * 1987-09-25 1989-04-05 Jacques Guichard Terminal de communication visuelle et sonore comportant un dispositif d'éclairage d'appoint
US5142562A (en) * 1987-09-25 1992-08-25 Jacques Guichard Sound and vision communications terminal including an auxiliary lighting device

Also Published As

Publication number Publication date
US2420198A (en) 1947-05-06

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