FR50613E - Improvements to television systems - Google Patents

Improvements to television systems

Info

Publication number
FR50613E
FR50613E FR50613DA FR50613E FR 50613 E FR50613 E FR 50613E FR 50613D A FR50613D A FR 50613DA FR 50613 E FR50613 E FR 50613E
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
French (fr)
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
Priority claimed from GB14776/38A external-priority patent/GB515209A/en
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Application granted granted Critical
Publication of FR50613E publication Critical patent/FR50613E/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
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control
    • H04N5/53—Keyed automatic gain control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Systems (AREA)
  • Television Systems (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Television Receiver Circuits (AREA)
FR50613D 1938-05-18 1939-05-16 Improvements to television systems Expired FR50613E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB14776/38A GB515209A (en) 1938-08-26 1938-05-18 Improvements in or relating to television systems
US226871A US2214847A (en) 1938-08-26 1938-08-26 Automatic amplification and black level control for television receivers

Publications (1)

Publication Number Publication Date
FR50613E true FR50613E (en) 1941-01-27

Family

ID=32095217

Family Applications (2)

Application Number Title Priority Date Filing Date
FR50613D Expired FR50613E (en) 1938-05-18 1939-05-16 Improvements to television systems
FR859498D Expired FR859498A (en) 1938-05-18 1939-08-26 TV device

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR859498D Expired FR859498A (en) 1938-05-18 1939-08-26 TV device

Country Status (3)

Country Link
US (1) US2303968A (en)
FR (2) FR50613E (en)
GB (2) GB476935A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE468385A (en) * 1945-09-27
US2548436A (en) * 1946-01-25 1951-04-10 Hazeltine Corp Television receiver background control circuit
US2707751A (en) * 1946-03-12 1955-05-03 Harold V Hance Delay line pulse stretcher
BE476875A (en) * 1946-10-22
US2570249A (en) * 1947-03-29 1951-10-09 Sperry Corp Combining and separating circuits
US2515195A (en) * 1947-12-12 1950-07-18 Jr John F Clark Pulse collecting method
US2686220A (en) * 1948-05-28 1954-08-10 Rca Corp Conveyeance of auxiliary information in a television system
GB661890A (en) * 1948-12-17 1951-11-28 Pye Ltd Apparatus for measuring or using for control purposes, the peak voltage of short duration voltage peaks or pulses
US2644130A (en) * 1949-01-24 1953-06-30 Socony Vacuum Oil Co Inc Square wave pulse generating system
US2736801A (en) * 1951-05-16 1956-02-28 Clyde E Wiegand Distributed pulse height discriminator
US2764678A (en) * 1951-06-07 1956-09-25 Airborne Instr Lab Inc Pulse stretcher
US2800584A (en) * 1952-02-28 1957-07-23 Richard F Blake Pulse position decoder
US2836715A (en) * 1953-04-08 1958-05-27 Rca Corp Signal shaping circuit
USRE25284E (en) * 1954-08-04 1962-11-06 D loughlin
US2968036A (en) * 1957-07-12 1961-01-10 Oliver I Steigerwalt Radiant energy signalling system
US2958465A (en) * 1957-07-22 1960-11-01 Ibm Electronic adder
US3068417A (en) * 1959-07-24 1962-12-11 Paul E Fiske Pulse stretcher and shaper
US3247457A (en) * 1961-05-22 1966-04-19 Bell Telephone Labor Inc Analog signal peak detector using tapped delay line and sampling means
US3217100A (en) * 1962-01-03 1965-11-09 Rca Corp Contrast control system
US3629714A (en) * 1970-03-12 1971-12-21 Bell Telephone Labor Inc Electronic sampling and hold circuit
US5402488A (en) * 1991-08-30 1995-03-28 Karlock; James A. Method and apparatus for modifying a video signal
US5410364A (en) * 1992-01-15 1995-04-25 Karlock; James A. Method and apparatus for removing AGC pulses and other undesirable signals from a video signal
US20020091850A1 (en) 1992-10-23 2002-07-11 Cybex Corporation System and method for remote monitoring and operation of personal computers
US5410363A (en) * 1992-12-08 1995-04-25 Lightwave Communications, Inc. Automatic gain control device for transmitting video signals between two locations by use of a known reference pulse during vertical blanking period so as to control the gain of the video signals at the second location
AU774003B2 (en) 1998-09-22 2004-06-10 Avocent Huntsville Corporation System for accessing personal computers remotely

Also Published As

Publication number Publication date
US2303968A (en) 1942-12-01
FR859498A (en) 1940-12-19
GB531711A (en) 1941-01-09
GB476935A (en) 1937-12-15

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