FR851501A - Procédés et systèmes de communications de télévision - Google Patents

Procédés et systèmes de communications de télévision

Info

Publication number
FR851501A
FR851501A FR851501DA FR851501A FR 851501 A FR851501 A FR 851501A FR 851501D A FR851501D A FR 851501DA FR 851501 A FR851501 A FR 851501A
Authority
FR
France
Prior art keywords
systems
communications methods
television communications
television
methods
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR851501A publication Critical patent/FR851501A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H04N5/067—Arrangements or circuits at the transmitter end
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H04N5/067—Arrangements or circuits at the transmitter end
    • H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/06—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Television Systems (AREA)
  • Communication Cables (AREA)
FR851501D 1938-03-12 1939-03-11 Procédés et systèmes de communications de télévision Expired FR851501A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US195441A US2164176A (en) 1938-03-12 1938-03-12 Method and system for television communication

Publications (1)

Publication Number Publication Date
FR851501A true FR851501A (fr) 1940-01-10

Family

ID=22721432

Family Applications (1)

Application Number Title Priority Date Filing Date
FR851501D Expired FR851501A (fr) 1938-03-12 1939-03-11 Procédés et systèmes de communications de télévision

Country Status (3)

Country Link
US (2) US2164176A (fr)
FR (1) FR851501A (fr)
GB (1) GB526211A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899496A (en) * 1959-08-11 Process for television transmission
FR959300A (fr) * 1940-12-19 1950-03-28
US2521009A (en) * 1943-02-24 1950-09-05 John H Homrighous Television system
US2521008A (en) * 1944-06-27 1950-09-05 John H Homrighous Television and sound multiplex system
NL136716C (fr) * 1946-12-10
US2653184A (en) * 1948-01-03 1953-09-22 American Optical Corp Transmission of picture and sound on the same carrier
US2686220A (en) * 1948-05-28 1954-08-10 Rca Corp Conveyeance of auxiliary information in a television system
US2677719A (en) * 1948-05-29 1954-05-04 Zenith Radio Corp Subscriber television system
US2656407A (en) * 1949-02-12 1953-10-20 Zenith Radio Corp Subscriber signaling system
US2656411A (en) * 1949-03-15 1953-10-20 Zenith Radio Corp Television subscriber signaling system
US2706218A (en) * 1949-11-15 1955-04-12 William A Wootten System for television-program film recording and record reproduction
US3020340A (en) * 1958-06-03 1962-02-06 Lockheed Aircraft Corp Television synchronizing system
US3018053A (en) * 1958-08-04 1962-01-23 Frederick C Alpers Function generator using televisiontype scanning

Also Published As

Publication number Publication date
US2201309A (en) 1940-05-21
US2164176A (en) 1939-06-27
GB526211A (en) 1940-09-12

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