FR1008047A - Circuit destiné à réduire les distorsions ou déformations de signaux électriques - Google Patents

Circuit destiné à réduire les distorsions ou déformations de signaux électriques

Info

Publication number
FR1008047A
FR1008047A FR1008047DA FR1008047A FR 1008047 A FR1008047 A FR 1008047A FR 1008047D A FR1008047D A FR 1008047DA FR 1008047 A FR1008047 A FR 1008047A
Authority
FR
France
Prior art keywords
distortions
electrical signals
circuit designed
reduce
reduce distortions
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR1008047A publication Critical patent/FR1008047A/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
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • 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
    • H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
FR1008047D 1949-01-26 1950-01-06 Circuit destiné à réduire les distorsions ou déformations de signaux électriques Expired FR1008047A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72800A US2630486A (en) 1949-01-26 1949-01-26 Low-frequency restoration circuit

Publications (1)

Publication Number Publication Date
FR1008047A true FR1008047A (fr) 1952-05-13

Family

ID=22109829

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1008047D Expired FR1008047A (fr) 1949-01-26 1950-01-06 Circuit destiné à réduire les distorsions ou déformations de signaux électriques

Country Status (6)

Country Link
US (1) US2630486A (fr)
BE (1) BE493511A (fr)
CH (1) CH284637A (fr)
FR (1) FR1008047A (fr)
GB (1) GB668491A (fr)
NL (1) NL74917C (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967770C (de) * 1952-04-17 1957-12-12 Marconi Wireless Telegraph Co Schaltungsanordnung zur Verminderung oder Beseitigung von Brummspannungen in Fernsehsignalen
US2883621A (en) * 1953-05-01 1959-04-21 Honeywell Regulator Co Electrical measuring apparatus
US2843662A (en) * 1954-08-11 1958-07-15 Bell Telephone Labor Inc Shunt clamper of the feedback type
US2929928A (en) * 1955-07-01 1960-03-22 Hughes Aircraft Co Signal conversion system
NL94889C (fr) * 1956-09-27
US3008007A (en) * 1956-09-27 1961-11-07 Philips Corp Receiver for use in frequency shift telegraphy
BE563196A (fr) * 1956-12-15
US3196361A (en) * 1961-07-24 1965-07-20 Blonder Tongue Elect Wide-band video signal amplifier system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773772A (en) * 1926-12-30 1930-08-26 American Telephone & Telegraph Harmonic suppressor
DE878512C (de) * 1935-03-20 1953-04-16 Emi Ltd Verfahren zur Fadingregelung oder zur Wiedereinfuehrung der Gleich-stromkomponente in elektrische Signale, insbesondere beim Fernsehen
US2151145A (en) * 1935-11-08 1939-03-21 Emi Ltd Reduction of interference in electric signal transmission systems
US2223982A (en) * 1937-01-29 1940-12-03 Rca Corp Radio system
GB505057A (en) * 1937-02-08 1939-05-04 Cfcmug Improvements in or relating to television or telecinema transmitters
GB525629A (en) * 1938-02-25 1940-09-02 Telefunken Gmbh Improvements in or relating to television systems
GB515362A (en) * 1938-05-30 1939-12-04 Alan Dower Blumlein Improvements in or relating to the transmission of electrical signals having a direct current component
US2323762A (en) * 1940-01-31 1943-07-06 Rca Corp Measurement and recording of transient peak voltages

Also Published As

Publication number Publication date
GB668491A (en) 1952-03-19
NL74917C (fr)
CH284637A (de) 1952-07-31
BE493511A (fr)
US2630486A (en) 1953-03-03

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