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GB1152035A - Improvements in or relating to D.C. Restoring Circuits - Google Patents

Improvements in or relating to D.C. Restoring Circuits

Info

Publication number
GB1152035A
GB1152035A GB4029865A GB4029865A GB1152035A GB 1152035 A GB1152035 A GB 1152035A GB 4029865 A GB4029865 A GB 4029865A GB 4029865 A GB4029865 A GB 4029865A GB 1152035 A GB1152035 A GB 1152035A
Authority
GB
United Kingdom
Prior art keywords
capacitor
video signal
relating
restoration
circuit
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
GB4029865A
Inventor
Raymond Leslie Greenfield
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB4029865A priority Critical patent/GB1152035A/en
Publication of GB1152035A publication Critical patent/GB1152035A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/16—Manual exchanges with means for reducing interference; with means for reducing effects due to line faults
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Picture Signal Circuits (AREA)

Abstract

1,152,035. Television. MARCONI CO. Ltd. 29 July, 1966 [22 Sept., 1965], No. 40298/65. Heading H4F. A video signal is applied through capacitor 8 to the base of emitter follower 9 and has the D.C. component restored by circuit 3, 5, 41. The resultant of the D.C. restoration is then integrated in a circuit comprising resistor 10 and capacitor 11, the capacitor also serving to couple the original video signal from the input 1 to an output emitter follower 6 whereby the D.C. component produced by the integration is added to the original video signal to effect D.C. restoration.
GB4029865A 1965-09-22 1965-09-22 Improvements in or relating to D.C. Restoring Circuits Expired GB1152035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4029865A GB1152035A (en) 1965-09-22 1965-09-22 Improvements in or relating to D.C. Restoring Circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4029865A GB1152035A (en) 1965-09-22 1965-09-22 Improvements in or relating to D.C. Restoring Circuits

Publications (1)

Publication Number Publication Date
GB1152035A true GB1152035A (en) 1969-05-14

Family

ID=10414199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4029865A Expired GB1152035A (en) 1965-09-22 1965-09-22 Improvements in or relating to D.C. Restoring Circuits

Country Status (1)

Country Link
GB (1) GB1152035A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6051661A (en) * 1997-01-24 2000-04-18 Basf Aktiengesellschaft Thermoplastic molding compositions
US7098266B2 (en) 1999-12-16 2006-08-29 Basf Aktiengesellschaft Polyarylethersulphone and polyamide-based thermoplastic mouldable masses with improved processing characteristics
WO2009000741A1 (en) 2007-06-22 2008-12-31 Basf Se Molding materials comprising polyaryl ethers with improved surface quality
DE102010062886A1 (en) 2009-12-16 2011-06-22 Basf Se, 67063 Use of polyarylene ether sulfone for impact modification of thermoplastic polyamides containing a fibrous or particulate filler
US8378054B2 (en) 2007-11-13 2013-02-19 Basf Se Method for producing polyaryl ethers
EP2581404A1 (en) 2011-10-11 2013-04-17 Basf Se Thermoplastic moulding material and moulded parts made of same with improved wear resistance
US8729164B2 (en) 2011-10-11 2014-05-20 Basf Se Thermoplastic molding composition and moldings produced therefrom with improved wear resistance

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6051661A (en) * 1997-01-24 2000-04-18 Basf Aktiengesellschaft Thermoplastic molding compositions
US7098266B2 (en) 1999-12-16 2006-08-29 Basf Aktiengesellschaft Polyarylethersulphone and polyamide-based thermoplastic mouldable masses with improved processing characteristics
WO2009000741A1 (en) 2007-06-22 2008-12-31 Basf Se Molding materials comprising polyaryl ethers with improved surface quality
US8378054B2 (en) 2007-11-13 2013-02-19 Basf Se Method for producing polyaryl ethers
DE102010062886A1 (en) 2009-12-16 2011-06-22 Basf Se, 67063 Use of polyarylene ether sulfone for impact modification of thermoplastic polyamides containing a fibrous or particulate filler
EP2581404A1 (en) 2011-10-11 2013-04-17 Basf Se Thermoplastic moulding material and moulded parts made of same with improved wear resistance
WO2013053723A1 (en) 2011-10-11 2013-04-18 Basf Se Thermoplastic moulding composition and moulded parts produced therefrom with improved wear resistance
US8729164B2 (en) 2011-10-11 2014-05-20 Basf Se Thermoplastic molding composition and moldings produced therefrom with improved wear resistance

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees