FR768993A - Perfectionnements aux systèmes de télévision - Google Patents

Perfectionnements aux systèmes de télévision

Info

Publication number
FR768993A
FR768993A FR768993DA FR768993A FR 768993 A FR768993 A FR 768993A FR 768993D A FR768993D A FR 768993DA FR 768993 A FR768993 A FR 768993A
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
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR768993A publication Critical patent/FR768993A/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
    • H04N5/14—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Particle Accelerators (AREA)
FR768993D 1933-02-28 1934-02-23 Perfectionnements aux systèmes de télévision Expired FR768993A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US658894A US2251677A (en) 1933-02-28 1933-02-28 Television system

Publications (1)

Publication Number Publication Date
FR768993A true FR768993A (fr) 1934-08-17

Family

ID=24643154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR768993D Expired FR768993A (fr) 1933-02-28 1934-02-23 Perfectionnements aux systèmes de télévision

Country Status (5)

Country Link
US (1) US2251677A (fr)
BE (1) BE401713A (fr)
DE (1) DE767750C (fr)
FR (1) FR768993A (fr)
GB (1) GB434496A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767558C (de) * 1934-10-26 1952-12-08 Rca Corp Schaltungsanordnung fuer speichernde Kathodenstrahl-Bildabtaster
DE882416C (de) * 1934-09-18 1953-07-09 Emi Ltd Schaltungsanordnung zur Wiedereinfuehrung der Gleichstrom-komponente in elektrische Signale

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752761C (de) * 1935-11-02 1954-02-08 Telefunken Gmbh Verfahren zur Schwundregelung der Ausgangsamplitude des Verstaerkers fuer den Empfang von Fernsehsendungen
US2418127A (en) * 1942-12-01 1947-04-01 Standard Telephones Cables Ltd Filter system
US2448027A (en) * 1943-11-23 1948-08-31 Standard Telephones Cables Ltd Static reducing pulse receiver
US2505367A (en) * 1948-05-21 1950-04-25 Rca Corp Television receiver brightness and contrast control
US2727942A (en) * 1950-05-11 1955-12-20 Don Lee Division Of General Te Television synchronizing apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR742855A (fr) * 1933-03-18
DE575775C (de) * 1927-04-21 1933-05-03 Siemens & Halske Akt Ges Einrichtung zur selbsttaetigen Regelung des Wirkungsgrades von UEbertragungssystemen, insbesondere fuer Bildtelegraphie
US1849818A (en) * 1930-09-19 1932-03-15 Gen Electric Picture transmission
FR742835A (fr) * 1931-09-16 1933-03-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE882416C (de) * 1934-09-18 1953-07-09 Emi Ltd Schaltungsanordnung zur Wiedereinfuehrung der Gleichstrom-komponente in elektrische Signale
DE767558C (de) * 1934-10-26 1952-12-08 Rca Corp Schaltungsanordnung fuer speichernde Kathodenstrahl-Bildabtaster

Also Published As

Publication number Publication date
DE767750C (de) 1953-07-06
US2251677A (en) 1941-08-05
BE401713A (fr)
GB434496A (en) 1935-08-28

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