US2107392A - Television arrangement - Google Patents

Television arrangement Download PDF

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Publication number
US2107392A
US2107392A US728526A US72852634A US2107392A US 2107392 A US2107392 A US 2107392A US 728526 A US728526 A US 728526A US 72852634 A US72852634 A US 72852634A US 2107392 A US2107392 A US 2107392A
Authority
US
United States
Prior art keywords
line
tilting
image
plate
potential
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
US728526A
Other languages
English (en)
Inventor
Schlesinger Kurt
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 claimed from GB1647334A external-priority patent/GB444163A/en
Application granted granted Critical
Publication of US2107392A publication Critical patent/US2107392A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K12/00—Producing pulses by distorting or combining sinusoidal waveforms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/74—Deflecting by electric fields only
    • 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
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/237—Distortion correction, e.g. for pincushion distortion correction, S-correction using passive elements, e.g. diodes

Definitions

  • the simple solution consists, as has already been proposed, in screening off the line traversed by the image tilting potentials up to its entry into the Braun tube, whilst screening of the image tilting circuit within the tube is unnecessary.
  • the screening means must be so constructed in accordance with the invention that the time constant determined by the earth capacity and the working resistance of the image tilting generator is smaller than the return tilting period (for example, smaller than 1/5000 see).
  • the line traversed by the image tilting potential may be constructed in the form of a wire as thin as a needle, and disposed in a screening tube of large diameter.
  • a screening tube of large diameter.
  • a part of the chassis which is screened off against all lines conducting line tilting potentials.
  • a short-circuiting of this nature may be obtained in simple fashion by means of a condenser, the capacity of which must be approximately 100 times greater than the interfering part-capacity.
  • the compensation may be performed quite generally by the application of a potential, which is equal to the interfering potential, to the second image-deflecting plate, i. e., by the use of an equal but oppositely directed field. 5
  • connection system for carrying out the method according to the invention is illustrated diagrammatically by way of example in Fig. 2.
  • E2 is the image 10 deflecting plate, which receives the image-deflecting potenial from the generator 5: with the working resistance iii. Between the image potential line and the line tilting potential line there is situated the detrimental capacity 1.
  • the 15 plate I i is connected over the resistance 5, which is equal to the resistance it (for example, 3000 ohms), with the earthed anode i.
  • the compensation potential is conducted to the plate ll through the medium of the condenser 6, which is 20 so adjusted that its capacity is equal to the interfering capacity I.
  • An arrangement for deflecting the cathode ray in a Braun tube having a source of electrons, an anode, a fluorescent screen and two pairs of deflecting plates, one pair serving for the line deflection of the cathode ray produced in said tube and the second pair serving for the framing deflection, comprising two scanning oscillation generators, means for connecting one of said generators with said line deflecting plates, means for connecting the other of said generators with said framing deflecting plates, a condenser connected between said line scanning oscillation generator and one plate of said second pair for applying a potential of the same amplitude and reversed phase as compared with the potential causing disturbing capacitative influences between said line scanning oscillation generator and said other plate of said second pair of deflecting plates.
  • a television arrangement comprising a Braun tube having a pair of line deflection plates and a pair of frame deflection plates, a tilting oscillation generator connected by leads to one 5 of the first pair of plates, and another tilting oscillator connected by leads to one of the second pair of plates, each other plate of both pairs being connected through a separate impedance to the anode, a condenser connecting the line deflec- 50 tion plate connected to its tilting generator to the frame deflection plate connected to the anode, the capacity of said condenser being equal to the non-avoidable disturbing capacity between said generators and between the leads connect- 55 ing said generators to said plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
US728526A 1932-07-23 1934-06-01 Television arrangement Expired - Lifetime US2107392A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE422064X 1932-07-23
DE2107392X 1933-06-03
GB1647334A GB444163A (en) 1934-06-02 1934-06-02 Television arrangement

Publications (1)

Publication Number Publication Date
US2107392A true US2107392A (en) 1938-02-08

Family

ID=32033834

Family Applications (1)

Application Number Title Priority Date Filing Date
US728526A Expired - Lifetime US2107392A (en) 1932-07-23 1934-06-01 Television arrangement

Country Status (3)

Country Link
US (1) US2107392A (enrdf_load_stackoverflow)
GB (1) GB422064A (enrdf_load_stackoverflow)
NL (1) NL44360C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449524A (en) * 1944-11-27 1948-09-14 Us Sec War Oscilloscope device
US2766399A (en) * 1953-04-07 1956-10-09 Nathaniel I Korman Electronic signal storage system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449524A (en) * 1944-11-27 1948-09-14 Us Sec War Oscilloscope device
US2766399A (en) * 1953-04-07 1956-10-09 Nathaniel I Korman Electronic signal storage system

Also Published As

Publication number Publication date
NL44360C (enrdf_load_stackoverflow)
GB422064A (en) 1935-01-04

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