CA1025096A - Generateur d'impulsions sequentielles pour la transmission d'images par telephone - Google Patents

Generateur d'impulsions sequentielles pour la transmission d'images par telephone

Info

Publication number
CA1025096A
CA1025096A CA205,804A CA205804A CA1025096A CA 1025096 A CA1025096 A CA 1025096A CA 205804 A CA205804 A CA 205804A CA 1025096 A CA1025096 A CA 1025096A
Authority
CA
Canada
Prior art keywords
transmission system
image transmission
generating sample
sample pulses
telephone image
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
CA205,804A
Other languages
English (en)
Other versions
CA205804S (en
Inventor
Robert S. Hopkins (Jr.)
David M. Miller
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
Application granted granted Critical
Publication of CA1025096A publication Critical patent/CA1025096A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—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)
CA205,804A 1973-08-10 1974-07-29 Generateur d'impulsions sequentielles pour la transmission d'images par telephone Expired CA1025096A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00387346A US3843837A (en) 1973-08-10 1973-08-10 Apparatus for generating sample pulses in a telephone image transmission system

Publications (1)

Publication Number Publication Date
CA1025096A true CA1025096A (fr) 1978-01-24

Family

ID=23529488

Family Applications (1)

Application Number Title Priority Date Filing Date
CA205,804A Expired CA1025096A (fr) 1973-08-10 1974-07-29 Generateur d'impulsions sequentielles pour la transmission d'images par telephone

Country Status (12)

Country Link
US (1) US3843837A (fr)
JP (1) JPS5539153B2 (fr)
AR (1) AR201330A1 (fr)
BE (1) BE818707A (fr)
BR (1) BR7406397D0 (fr)
CA (1) CA1025096A (fr)
DE (1) DE2438478C2 (fr)
FR (1) FR2240595B1 (fr)
GB (1) GB1475352A (fr)
IT (1) IT1019816B (fr)
NL (1) NL7410393A (fr)
SE (1) SE389786B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716585A (en) * 1985-04-05 1987-12-29 Datapoint Corporation Gain switched audio conferencing network
US4686698A (en) * 1985-04-08 1987-08-11 Datapoint Corporation Workstation for interfacing with a video conferencing network
US4710917A (en) * 1985-04-08 1987-12-01 Datapoint Corporation Video conferencing network
DE69222102T2 (de) * 1991-08-02 1998-03-26 Grass Valley Group Bedienerschnittstelle für Videoschnittsystem zur Anzeige und interaktive Steuerung von Videomaterial
KR0143226B1 (ko) * 1991-08-08 1998-07-01 구자홍 인쇄회로 기판을 이용한 전자조리기의 가열장치
RU2738179C2 (ru) * 2016-08-16 2020-12-09 Сикпа Холдинг Са Способы получения слоев с эффектом

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538247A (en) * 1968-01-15 1970-11-03 Itt Time-bandwidth reduction system and method for television
US3564127A (en) * 1968-03-08 1971-02-16 Westinghouse Electric Corp System of band compression for video signals
US3683111A (en) * 1969-06-18 1972-08-08 Colorado Video Television bandwidth compression and expansion system
GB1393674A (en) * 1971-06-01 1975-05-07 Rca Corp Telephone image transmission system

Also Published As

Publication number Publication date
FR2240595A1 (fr) 1975-03-07
BE818707A (fr) 1974-12-02
DE2438478C2 (de) 1982-05-06
SE7409949L (fr) 1975-02-11
AU7201474A (en) 1976-02-05
AR201330A1 (es) 1975-02-28
SE389786B (sv) 1976-11-15
US3843837A (en) 1974-10-22
DE2438478A1 (de) 1975-02-20
FR2240595B1 (fr) 1979-06-01
IT1019816B (it) 1977-11-30
GB1475352A (en) 1977-06-01
BR7406397D0 (pt) 1975-05-27
JPS5539153B2 (fr) 1980-10-08
NL7410393A (nl) 1975-02-12
JPS5046210A (fr) 1975-04-24

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Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 19950124