FR864885A - Système de translation de signaux en télévision - Google Patents

Système de translation de signaux en télévision

Info

Publication number
FR864885A
FR864885A FR864885DA FR864885A FR 864885 A FR864885 A FR 864885A FR 864885D A FR864885D A FR 864885DA FR 864885 A FR864885 A FR 864885A
Authority
FR
France
Prior art keywords
television signal
translation system
signal translation
system
television
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.)
Hazeltine Corp
Original Assignee
Hazeltine 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
Priority to US276594A priority Critical patent/US2269540A/en
Application filed by Hazeltine Corp filed Critical Hazeltine Corp
Application granted granted Critical
Publication of FR864885A publication Critical patent/FR864885A/fr
Application status is Expired legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry
    • H04N5/57Control of contrast or brightness
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/14Picture signal circuitry for video frequency region
    • H04N5/16Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/165Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant
FR864885D 1939-05-31 1940-04-08 Système de translation de signaux en télévision Expired FR864885A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US276594A US2269540A (en) 1939-05-31 1939-05-31 Television signal-translating system

Publications (1)

Publication Number Publication Date
FR864885A true FR864885A (fr) 1941-05-07

Family

ID=23057291

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864885D Expired FR864885A (fr) 1939-05-31 1940-04-08 Système de translation de signaux en télévision

Country Status (3)

Country Link
US (1) US2269540A (fr)
FR (1) FR864885A (fr)
NL (1) NL70278C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976227C (de) * 1952-02-21 1963-05-16 Philips Nv Kontrastregelung in einem Fernsehempfaenger

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550960A (en) * 1947-05-21 1951-05-01 Hazeltine Research Inc Television receiver contrast and brightness control
US2910550A (en) * 1956-04-27 1959-10-27 Bell Telephone Labor Inc Wide-range automatic gain control
US2983787A (en) * 1958-10-24 1961-05-09 Gen Electric Automatic gain control system for a television receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976227C (de) * 1952-02-21 1963-05-16 Philips Nv Kontrastregelung in einem Fernsehempfaenger

Also Published As

Publication number Publication date
US2269540A (en) 1942-01-13
NL70278C (fr)

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