FR48747E - Electro-optical imaging systems with device for reducing image distortion - Google Patents

Electro-optical imaging systems with device for reducing image distortion

Info

Publication number
FR48747E
FR48747E FR48747DA FR48747E FR 48747 E FR48747 E FR 48747E FR 48747D A FR48747D A FR 48747DA FR 48747 E FR48747 E FR 48747E
Authority
FR
France
Prior art keywords
electro
optical imaging
imaging systems
image distortion
reducing image
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 US99023A external-priority patent/US2274709A/en
Application filed by Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR48747E publication Critical patent/FR48747E/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
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/165—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Measurement Of Radiation (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Lasers (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
FR48747D 1931-09-16 1937-08-28 Electro-optical imaging systems with device for reducing image distortion Expired FR48747E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US563016A US2274686A (en) 1931-09-16 1931-09-16 Electro-optical system
US99023A US2274709A (en) 1936-09-02 1936-09-02 Electro-optical image production

Publications (1)

Publication Number Publication Date
FR48747E true FR48747E (en) 1938-06-21

Family

ID=26795407

Family Applications (2)

Application Number Title Priority Date Filing Date
FR742835D Expired FR742835A (en) 1931-09-16
FR48747D Expired FR48747E (en) 1931-09-16 1937-08-28 Electro-optical imaging systems with device for reducing image distortion

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR742835D Expired FR742835A (en) 1931-09-16

Country Status (4)

Country Link
US (1) US2274686A (en)
DE (1) DE628663C (en)
FR (2) FR48747E (en)
GB (2) GB406672A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE401713A (en) * 1933-02-28
BE401738A (en) * 1933-03-01
BE402568A (en) * 1933-04-13
NL46321C (en) * 1934-09-18
DE753789C (en) * 1935-03-09 1952-11-17 Siemens & Halske A G Circuit arrangement for influencing the settling and decay times of an electrical circuit
DE741785C (en) * 1937-11-29 1943-11-17 Fernseh Gmbh Method for the transmission of television pictures whose brightness range is less than the available modulation range
US2476349A (en) * 1944-09-04 1949-07-19 Hartford Nat Bank & Trust Comp Phase or frequency modulation system
US2705740A (en) * 1949-12-14 1955-04-05 Zenith Radio Corp Subscription type signalling system

Also Published As

Publication number Publication date
GB483451A (en) 1938-04-20
FR742835A (en) 1933-03-17
US2274686A (en) 1942-03-03
GB406672A (en) 1934-02-28
DE628663C (en) 1936-04-08

Similar Documents

Publication Publication Date Title
FR48747E (en) Electro-optical imaging systems with device for reducing image distortion
FR712674A (en) Improvements to image transmission systems
FR642974A (en) Device for image reproducing devices with electrochemical transcription
FR692302A (en) Image transmission system
FR708514A (en) Image transmission system
FR766808A (en) Mosaic screen device for television transmission
FR822063A (en) Television image reception device
FR698334A (en) Improvements to image transmission systems
FR656912A (en) Device for image telegraphy
FR721630A (en) Motion picture reproduction device
FR700596A (en) Image scanning system for television
FR725313A (en) Device applicable to cameras for the automatic adjustment of illumination
FR834499A (en) Image analysis device, in particular for television systems
FR702216A (en) Chemographic receiver for image telegraphy
FR837575A (en) Transmission apparatus for electro-optical image transmission systems
FR722833A (en) Image movement mode for cinematographic devices
FR818427A (en) Transmission apparatus for electro-optical image transmission systems
FR715834A (en) Improvements to remote image transmission systems
FR700088A (en) Image transmission system
FR657002A (en) Improvements to systems for electro-optical image production
FR657411A (en) Improvements to systems for electro-optical image production
FR690856A (en) Electrochemical receiver for image telegraphy
FR698735A (en) Bright image projection device
FR722394A (en) Device box for image observation
FR816159A (en) Image and television transmission systems