GB1049632A - Improvements in or relating to television camera equipments - Google Patents

Improvements in or relating to television camera equipments

Info

Publication number
GB1049632A
GB1049632A GB42283/62A GB4228362A GB1049632A GB 1049632 A GB1049632 A GB 1049632A GB 42283/62 A GB42283/62 A GB 42283/62A GB 4228362 A GB4228362 A GB 4228362A GB 1049632 A GB1049632 A GB 1049632A
Authority
GB
United Kingdom
Prior art keywords
reduction
television
characteristic
followed
linear amplifier
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
GB42283/62A
Inventor
Lionel Jacques Van Rooyen
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 GB42283/62A priority Critical patent/GB1049632A/en
Priority to DEP1267A priority patent/DE1267703B/en
Priority to FR953089A priority patent/FR1373604A/en
Publication of GB1049632A publication Critical patent/GB1049632A/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
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/40—Circuit details for pick-up tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Picture Signal Circuits (AREA)

Abstract

1,049,632. Television. MARCONI CO. Ltd. Sept. 27, 1963 [Nov. 8, 1962], No. 42283/62. Heading H4F. [Also in Division G4] A storage-type television tube, such as a vidicon, which has a decay characteristic as shown by the full line in Fig. 1, i.e. a relatively rapid reduction in output followed by a slower reduction, is connected to a non-linear amplifier having a characteristic as shown in Fig. 3, whereby the overall decay characteristic of the combination is as shown by the dotted line in Fig. 1, i.e. a relatively slow reduction in output, followed by a more rapid reduction. The arrangement is stated to be of use for viewing objects which are subjected to intermittent illumination, for radar displays and for slow-scan television systems. The non-linear amplifier, Fig. 2, comprises a stage V1, the anode load of which is shunted by diode MR1 provided with an adjustable bias by way of cathode follower V2. The input signal from the television tube T is first clamped by circuit C controlled by pulses applied at P.
GB42283/62A 1962-11-08 1962-11-08 Improvements in or relating to television camera equipments Expired GB1049632A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB42283/62A GB1049632A (en) 1962-11-08 1962-11-08 Improvements in or relating to television camera equipments
DEP1267A DE1267703B (en) 1962-11-08 1963-10-30 Amplifier circuit for a television camera with a storage tube
FR953089A FR1373604A (en) 1962-11-08 1963-11-08 Advanced training in video amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB42283/62A GB1049632A (en) 1962-11-08 1962-11-08 Improvements in or relating to television camera equipments

Publications (1)

Publication Number Publication Date
GB1049632A true GB1049632A (en) 1966-11-30

Family

ID=10423738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42283/62A Expired GB1049632A (en) 1962-11-08 1962-11-08 Improvements in or relating to television camera equipments

Country Status (2)

Country Link
DE (1) DE1267703B (en)
GB (1) GB1049632A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB709715A (en) * 1950-12-06 1954-06-02 Emi Ltd Improvements relating to non-linear electrical circuits

Also Published As

Publication number Publication date
DE1267703B (en) 1968-05-09

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