GB446663A - Improvements in and relating to television systems - Google Patents

Improvements in and relating to television systems

Info

Publication number
GB446663A
GB446663A GB25498/34A GB2549834A GB446663A GB 446663 A GB446663 A GB 446663A GB 25498/34 A GB25498/34 A GB 25498/34A GB 2549834 A GB2549834 A GB 2549834A GB 446663 A GB446663 A GB 446663A
Authority
GB
United Kingdom
Prior art keywords
signals
cathode ray
receiver
limiting valve
television
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
GB25498/34A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB25498/34A priority Critical patent/GB446663A/en
Priority to GB21523/35A priority patent/GB462228A/en
Priority to DEE47307D priority patent/DE755705C/en
Publication of GB446663A publication Critical patent/GB446663A/en
Priority to US90657A priority patent/US2227197A/en
Priority to DEE2321A priority patent/DE875818C/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Systems (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Television Receiver Circuits (AREA)

Abstract

446,663. Television. BLUMLEIN, A. D., 7, Courtfield Gardens, Ealing, London. Sept. 4, 1934, No. 25498. [Class 40 (iii)] In a television receiver, the light is maintained at a low value for received signals exceeding a predetermined amplitude. As applied to a cathode ray receiver, the rectified signals at terminals 1 are applied to control a cathode ray over a potentiometer 2 and are fed to a limiting valve 7 so that signals in the " whiter than white " sense, such as synchronizing or interfering signals, produce impulses in the anode circuit which are applied to reduce the cathode ray intensity. In a modification, the picture signals are delayed relatively to the signals from the limiting valve, and the receiver is modified to co-operate with a transmitter sending the direct-current modulation component, Fig. 2 (not shown).
GB25498/34A 1934-09-04 1934-09-04 Improvements in and relating to television systems Expired GB446663A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB25498/34A GB446663A (en) 1934-09-04 1934-09-04 Improvements in and relating to television systems
GB21523/35A GB462228A (en) 1934-09-04 1935-07-29 Improvements in and relating to electric signal transmission systems
DEE47307D DE755705C (en) 1934-09-04 1935-08-31 Circuit arrangement for television receivers
US90657A US2227197A (en) 1934-09-04 1936-07-15 Signaling system
DEE2321A DE875818C (en) 1934-09-04 1936-07-30 Circuit arrangement for television receivers with a Braunschweig tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25498/34A GB446663A (en) 1934-09-04 1934-09-04 Improvements in and relating to television systems

Publications (1)

Publication Number Publication Date
GB446663A true GB446663A (en) 1936-05-04

Family

ID=10228659

Family Applications (2)

Application Number Title Priority Date Filing Date
GB25498/34A Expired GB446663A (en) 1934-09-04 1934-09-04 Improvements in and relating to television systems
GB21523/35A Expired GB462228A (en) 1934-09-04 1935-07-29 Improvements in and relating to electric signal transmission systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB21523/35A Expired GB462228A (en) 1934-09-04 1935-07-29 Improvements in and relating to electric signal transmission systems

Country Status (3)

Country Link
US (1) US2227197A (en)
DE (2) DE755705C (en)
GB (2) GB446663A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448635A (en) * 1945-03-30 1948-09-07 Rca Corp Echo reducing circuit for television receivers
US2538040A (en) * 1943-05-01 1951-01-16 Arthur C Prichard Interference reduction circuit for radio pulse receivers

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747100C (en) * 1938-01-20 1944-09-08 Telefunken Gmbh Circuit arrangement for filtering out the synchronizing pulses from a voltage mixture consisting of image and synchronizing pulses
US2425330A (en) * 1943-06-22 1947-08-12 Sperry Gyroscope Co Inc Cathode-ray system with bright and dark marker indications
US2646502A (en) * 1945-08-30 1953-07-21 Us Sec War Noise limiting circuit
US2514112A (en) * 1945-12-28 1950-07-04 Rca Corp Response control for wide band amplifiers
US2543523A (en) * 1946-02-27 1951-02-27 Collins Radio Co Noise control arrangement for radio receivers and the like
US2623119A (en) * 1948-04-26 1952-12-23 Harold B Reynolds Voltage limiting rectifier unit
US2540646A (en) * 1948-06-09 1951-02-06 Scophony Ltd Cathode-ray tube modulation circuits for television receivers
US2800528A (en) * 1949-06-23 1957-07-23 Du Mont Allen B Lab Inc Video amplifier bridge circuit for minimizing supply voltage variations
US2703382A (en) * 1952-12-11 1955-03-01 Hughes Aircraft Co Two-way limiting network
DE1010564B (en) * 1954-02-09 1957-06-19 Loewe Opta Ag Television reception arrangement according to the differential carrier method
US2852623A (en) * 1956-01-03 1958-09-16 Hoffman Electronics Corp Versatile impulse noise limiter or the like
US3162818A (en) * 1961-09-11 1964-12-22 Bell Telephone Labor Inc Symmetrically limiting amplifier with feedback paths responsive to instantaneous and average signal variations
US3320361A (en) * 1961-11-27 1967-05-16 Zenith Radio Corp Television receiver including a crispener network comprising a series connected inductor and variable resistor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR560208A (en) * 1922-03-29 1923-10-01 Radio Electr Soc Fr Braking of free oscillations by varying the internal resistance of the vacuum tubes
US1671302A (en) * 1927-05-31 1928-05-29 Bell Telephone Labor Inc Electrooptical transmission
DE613352C (en) * 1931-01-23 1935-05-17 Kolster Brandes Ltd Device for the automatic limitation of currents and voltages in the amplifier output circuit by means of feedback
US2058686A (en) * 1932-10-25 1936-10-27 Radio Res Lab Inc Wave signaling method and apparatus
FR773275A (en) * 1933-05-18 1934-11-15 Telefunken Gmbh Arrangement to vary the polarization voltage of a lamp according to the amplitude of the signals received

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538040A (en) * 1943-05-01 1951-01-16 Arthur C Prichard Interference reduction circuit for radio pulse receivers
US2448635A (en) * 1945-03-30 1948-09-07 Rca Corp Echo reducing circuit for television receivers

Also Published As

Publication number Publication date
GB462228A (en) 1937-03-01
DE755705C (en) 1952-01-31
US2227197A (en) 1940-12-31
DE875818C (en) 1953-05-07

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