AU474542B2 - Telephone image transmission system - Google Patents

Telephone image transmission system

Info

Publication number
AU474542B2
AU474542B2 AU42884/72A AU4288472A AU474542B2 AU 474542 B2 AU474542 B2 AU 474542B2 AU 42884/72 A AU42884/72 A AU 42884/72A AU 4288472 A AU4288472 A AU 4288472A AU 474542 B2 AU474542 B2 AU 474542B2
Authority
AU
Australia
Prior art keywords
transmission system
image transmission
telephone image
telephone
transmission
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
AU42884/72A
Other versions
AU4288472A (en
Inventor
James Gibson John
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of AU4288472A publication Critical patent/AU4288472A/en
Application granted granted Critical
Publication of AU474542B2 publication Critical patent/AU474542B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H04N7/122—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line
    • H04N7/125—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line the signal segment being a picture element

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Closed-Circuit Television Systems (AREA)
AU42884/72A 1971-06-01 1972-05-30 Telephone image transmission system Expired AU474542B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1833771A GB1393674A (en) 1971-06-01 1971-06-01 Telephone image transmission system
GBGB18337/71 1971-06-01

Publications (2)

Publication Number Publication Date
AU4288472A AU4288472A (en) 1974-02-07
AU474542B2 true AU474542B2 (en) 1976-07-29

Family

ID=10110745

Family Applications (1)

Application Number Title Priority Date Filing Date
AU42884/72A Expired AU474542B2 (en) 1971-06-01 1972-05-30 Telephone image transmission system

Country Status (11)

Country Link
JP (1) JPS5726037B1 (en)
AU (1) AU474542B2 (en)
BE (1) BE784137A (en)
BR (1) BR7203528D0 (en)
CA (1) CA979549A (en)
DE (1) DE2226614C3 (en)
FR (1) FR2140132B1 (en)
GB (1) GB1393674A (en)
IT (1) IT956003B (en)
NL (1) NL7207370A (en)
SE (1) SE389787C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU611150B2 (en) * 1987-05-15 1991-06-06 Medaon Ltd. Video communication system and phase or frequency modulator included therein
AU659913B2 (en) * 1992-02-22 1995-06-01 Alcatel N.V. Broadband transmission of video signals

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843837A (en) * 1973-08-10 1974-10-22 Rca Corp Apparatus for generating sample pulses in a telephone image transmission system
GB2257592A (en) * 1991-07-11 1993-01-13 Peter Barry Moss Slow scan conversion circuit
WO2000051350A1 (en) 1999-02-22 2000-08-31 Terk Technologies Corp. Video transmission system and method utilizing phone lines in multiple unit dwellings

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE546828A (en) * 1955-05-05
US2955159A (en) * 1958-10-01 1960-10-04 Itt Narrow-band video communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU611150B2 (en) * 1987-05-15 1991-06-06 Medaon Ltd. Video communication system and phase or frequency modulator included therein
AU659913B2 (en) * 1992-02-22 1995-06-01 Alcatel N.V. Broadband transmission of video signals

Also Published As

Publication number Publication date
CA979549A (en) 1975-12-09
SE389787B (en) 1976-11-15
NL7207370A (en) 1972-12-05
BE784137A (en) 1972-09-18
FR2140132A1 (en) 1973-01-12
GB1393674A (en) 1975-05-07
DE2226614C3 (en) 1975-07-10
IT956003B (en) 1973-10-10
DE2226614A1 (en) 1972-12-14
AU4288472A (en) 1974-02-07
FR2140132B1 (en) 1978-03-03
SE389787C (en) 1980-01-31
DE2226614B2 (en) 1974-12-05
BR7203528D0 (en) 1973-06-28
JPS5726037B1 (en) 1982-06-02

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