CH213518A - Method for automatic contrast control in television receivers. - Google Patents

Method for automatic contrast control in television receivers.

Info

Publication number
CH213518A
CH213518A CH213518DA CH213518A CH 213518 A CH213518 A CH 213518A CH 213518D A CH213518D A CH 213518DA CH 213518 A CH213518 A CH 213518A
Authority
CH
Switzerland
Prior art keywords
television receivers
contrast control
automatic contrast
automatic
control
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft C Lorenz
Original Assignee
Lorenz C Ag
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 Lorenz C Ag filed Critical Lorenz C Ag
Publication of CH213518A publication Critical patent/CH213518A/en

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
    • H04N5/57—Control of contrast or brightness

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
CH213518D 1939-05-13 1940-04-29 Method for automatic contrast control in television receivers. CH213518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE213518X 1939-05-13

Publications (1)

Publication Number Publication Date
CH213518A true CH213518A (en) 1941-02-15

Family

ID=5813659

Family Applications (1)

Application Number Title Priority Date Filing Date
CH213518D CH213518A (en) 1939-05-13 1940-04-29 Method for automatic contrast control in television receivers.

Country Status (4)

Country Link
US (1) US2282992A (en)
BE (1) BE438854A (en)
CH (1) CH213518A (en)
FR (1) FR868486A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426419A (en) * 1942-12-23 1947-08-26 Du Mont Allen B Lab Inc Return trace blanking and mixing
US2745037A (en) * 1951-12-18 1956-05-08 Rca Corp Keying arrangement for single beam color tube

Also Published As

Publication number Publication date
US2282992A (en) 1942-05-12
BE438854A (en)
FR868486A (en) 1941-12-31

Similar Documents

Publication Publication Date Title
CH213518A (en) Method for automatic contrast control in television receivers.
CH214203A (en) Method for achieving glide path surfaces.
FR782553A (en) Automatic telephone system
CH219953A (en) Process for making colored photographic material.
CH225703A (en) Method for selective weed control.
CH171532A (en) Telephone control set in automatic telephone system.
CH218046A (en) Method for hardening casein fibers.
CH213516A (en) Arrangement for automatic amplitude control in television receivers.
CH205323A (en) Magnetic arc extinguishing method.
AT160188B (en) Remote control procedure.
CH233314A (en) Method for transmitting still images.
CH207833A (en) Method and device for ventilating beehives.
CH212823A (en) Method and device for manufacturing flycatchers.
GB535993A (en) Improvements in discriminator circuits for use in automatic frequency control systems
AU112042B2 (en) Improvement in automatic control system for television apparatus
CH181103A (en) Disinfection method.
AU533639A (en) Improvement in automatic control system for television apparatus
AU112034B2 (en) Automatic background control for television systems
CH190548A (en) Disinfection method.
DK58447C (en) Overlay receiver with automatic Voting control.
DK70221C (en) Method for making rennet.
CH196100A (en) Method for synchronizing the vertical change in television with interlaced transmission.
CA385021A (en) Automatic control system
CA382673A (en) Automatic heating system
AU110763B2 (en) Improvement in television automatic amplification control system