FR654751A - Improvements to television systems - Google Patents

Improvements to television systems

Info

Publication number
FR654751A
FR654751A FR654751DA FR654751A FR 654751 A FR654751 A FR 654751A FR 654751D A FR654751D A FR 654751DA FR 654751 A FR654751 A FR 654751A
Authority
FR
France
Prior art keywords
television systems
television
systems
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
French (fr)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR654751A publication Critical patent/FR654751A/en
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
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/165—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant
    • 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
FR654751D 1927-05-31 1928-04-13 Improvements to television systems Expired FR654751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US195252A US1671302A (en) 1927-05-31 1927-05-31 Electrooptical transmission

Publications (1)

Publication Number Publication Date
FR654751A true FR654751A (en) 1929-04-10

Family

ID=22720675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR654751D Expired FR654751A (en) 1927-05-31 1928-04-13 Improvements to television systems

Country Status (3)

Country Link
US (1) US1671302A (en)
DE (1) DE567687C (en)
FR (1) FR654751A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE402568A (en) * 1933-04-13
GB446663A (en) * 1934-09-04 1936-05-04 Alan Dower Blumlein Improvements in and relating to television systems
US2564556A (en) * 1948-02-26 1951-08-14 Rca Corp Line delay in facsimile

Also Published As

Publication number Publication date
DE567687C (en) 1933-01-07
US1671302A (en) 1928-05-29

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