US2112684A - Television process - Google Patents

Television process Download PDF

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Publication number
US2112684A
US2112684A US582737A US58273731A US2112684A US 2112684 A US2112684 A US 2112684A US 582737 A US582737 A US 582737A US 58273731 A US58273731 A US 58273731A US 2112684 A US2112684 A US 2112684A
Authority
US
United States
Prior art keywords
frame
scanning
frequency
line
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 - Lifetime
Application number
US582737A
Other languages
English (en)
Inventor
Ardenne Manfred Von
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Application granted granted Critical
Publication of US2112684A publication Critical patent/US2112684A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
    • H04N3/34—Elemental scanning area oscillated rapidly in direction transverse to main scanning direction

Definitions

  • the subject matter of the present invention is a method, by means of which these difficulties are overcome.
  • the image,upon the transmission is divided into strips, which are not situated 30 permanently at the one point, but pass continuously over the image.
  • the scanning cathode ray which passes, for example, sinuously over the surface, or irradiates the 35 surface in relaxation oscillations (which have a straight-line wave form) is deflected, transversely or perpendicularly to its direction, by a frame frequency in respect of which the line frequency amounts to a non-integral multiple.
  • Fig. 1 illustrates an arrangement in which the present invention can be adapted
  • Fig. 2 shows, in diagrammatic fashion, the scanning of two successlveframes.
  • i represents a Braun tube, containing the cathode 2, the Wehnelt-cylinder 3, the anode I, the deflecting plate-pairs 5 and 6 as well as the fluorescent screen I.
  • the cathode 2 is heated by means of a battery 8.
  • 9 designates an anode battery and I an initial potential battery for the Wehnelt-cylinder 3, which is supplied over a transformer I I with the voltages controlling the cathode ray-intensity.
  • the relaxation (straight line wave form) oscillations produced by the generators l2 and I3 are conducted to the deflecting plate pairs and 6.
  • the frequency of the linefrequency oscillation generator I! amounts according to the invention to a non-integral multiple of the frequency of the image frequency or frame frequency oscillation generator [3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Details Of Television Scanning (AREA)
US582737A 1930-12-22 1931-12-23 Television process Expired - Lifetime US2112684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE387087X 1930-12-22

Publications (1)

Publication Number Publication Date
US2112684A true US2112684A (en) 1938-03-29

Family

ID=6371072

Family Applications (1)

Application Number Title Priority Date Filing Date
US582737A Expired - Lifetime US2112684A (en) 1930-12-22 1931-12-23 Television process

Country Status (5)

Country Link
US (1) US2112684A (en(2012))
BE (1) BE385139A (en(2012))
FR (1) FR732007A (en(2012))
GB (1) GB387087A (en(2012))
NL (1) NL32951C (en(2012))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904629A (en) * 1952-04-28 1959-09-15 Serge A Scherbatskoy Scanning method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944557C (de) * 1932-07-19 1956-06-21 Rca Corp Tonfilmfernuebertragungssystem mit Lochscheibenabtastung und Wiedergabe durch Braun'sche Roehre
FR767515A (en(2012)) * 1933-01-28 1934-07-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904629A (en) * 1952-04-28 1959-09-15 Serge A Scherbatskoy Scanning method

Also Published As

Publication number Publication date
GB387087A (en) 1933-02-02
BE385139A (en(2012))
FR732007A (fr) 1932-09-12
NL32951C (en(2012))

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