FR742671A - - Google Patents

Info

Publication number
FR742671A
FR742671A FR742671DA FR742671A FR 742671 A FR742671 A FR 742671A FR 742671D A FR742671D A FR 742671DA FR 742671 A FR742671 A FR 742671A
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
Other languages
French (fr)
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 FR742671A publication Critical patent/FR742671A/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
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/123—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal directly commands a frequency generator
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
FR742671D 1931-09-30 Expired FR742671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US565953A US2178758A (en) 1931-09-30 1931-09-30 Television system

Publications (1)

Publication Number Publication Date
FR742671A true FR742671A (en) 1933-03-13

Family

ID=24260799

Family Applications (1)

Application Number Title Priority Date Filing Date
FR742671D Expired FR742671A (en) 1931-09-30

Country Status (4)

Country Link
US (1) US2178758A (en)
DE (1) DE641094C (en)
FR (1) FR742671A (en)
GB (1) GB407409A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740116C (en) * 1934-12-02 1943-10-12 Opta Radio Ag Arrangement for the optical-electrical generation of synchronization characters in television
DE754288C (en) * 1933-08-08 1952-07-17 Emi Ltd Synchronization method for television purposes using pulses of the same amplitude and different duration
DE754557C (en) * 1935-01-15 1952-12-01 Emi Ltd Circuit arrangement for the separation of pulses of different duration by converting them into pulses of different amplitudes
DE754289C (en) * 1934-08-31 1953-02-02 Emi Ltd Process for the production of picture change or line train change pulses lasting several line periods for television transmissions with continuous line synchronization

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743485C (en) * 1934-06-08 1943-12-27 Opta Radio Ag Arrangement for generating synchronizing pulses and for inserting them into the picture signal sequence in television broadcasts
DE741786C (en) * 1936-07-17 1943-11-17 Opta Radio Ag Television scanning arrangement in which the light beam scanning the image is also used to generate synchronizing characters
US2510070A (en) * 1945-05-18 1950-06-06 Farnsworth Res Corp Television scanning system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754288C (en) * 1933-08-08 1952-07-17 Emi Ltd Synchronization method for television purposes using pulses of the same amplitude and different duration
DE754289C (en) * 1934-08-31 1953-02-02 Emi Ltd Process for the production of picture change or line train change pulses lasting several line periods for television transmissions with continuous line synchronization
DE916178C (en) * 1934-08-31 1954-08-05 Emi Ltd Synchronization method for the transmission of an image that has been scanned interlaced with lines being added
DE740116C (en) * 1934-12-02 1943-10-12 Opta Radio Ag Arrangement for the optical-electrical generation of synchronization characters in television
DE754557C (en) * 1935-01-15 1952-12-01 Emi Ltd Circuit arrangement for the separation of pulses of different duration by converting them into pulses of different amplitudes

Also Published As

Publication number Publication date
GB407409A (en) 1934-03-22
US2178758A (en) 1939-11-07
DE641094C (en) 1937-01-19

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