GB652066A - Improvements in or relating to television apparatus - Google Patents

Improvements in or relating to television apparatus

Info

Publication number
GB652066A
GB652066A GB1910348A GB1910348A GB652066A GB 652066 A GB652066 A GB 652066A GB 1910348 A GB1910348 A GB 1910348A GB 1910348 A GB1910348 A GB 1910348A GB 652066 A GB652066 A GB 652066A
Authority
GB
United Kingdom
Prior art keywords
synchronizing
pulses
unintegrated
failure
noise pulses
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
GB1910348A
Inventor
Charles Leslie Faudell
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB1910348A priority Critical patent/GB652066A/en
Publication of GB652066A publication Critical patent/GB652066A/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
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/213—Circuitry for suppressing or minimising impulsive noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

652,066. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 16, 1948, No. 19103. Drawings to Specification. [Class 40 (iii)] [Also in Group XL (c)] In apparatus in which operations are effected under the control of regularly-occurring synchronizing pulses, interference due to extraneous noise pulses is reduced by integrating the incoming synchronizing and noise pulses and applying them to a limiter which produces an output when the integrated pulse attains a predetermined amplitude, this output signal is then delayed so that the operation is effected in coincidence with the next succeeding unintegrated synchronizing pulse. The apparatus is described in its application to a television system in which noise pulses occurring during the line synchronizing period are prevented from causing errors in synchronization. To maintain synchronization in the event of a failure in, for example, the delay circuit apparatus the unintegrated synchronizing pulses may be applied after a very short further delay to the line scanning generator so that on failure of the delayed integrated pulse, the scanning generator will be synchronized after a short time interval.
GB1910348A 1948-07-16 1948-07-16 Improvements in or relating to television apparatus Expired GB652066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1910348A GB652066A (en) 1948-07-16 1948-07-16 Improvements in or relating to television apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1910348A GB652066A (en) 1948-07-16 1948-07-16 Improvements in or relating to television apparatus

Publications (1)

Publication Number Publication Date
GB652066A true GB652066A (en) 1951-04-18

Family

ID=10123827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1910348A Expired GB652066A (en) 1948-07-16 1948-07-16 Improvements in or relating to television apparatus

Country Status (1)

Country Link
GB (1) GB652066A (en)

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