GB428926A - Improvements in or relating to cathode ray television receivers - Google Patents

Improvements in or relating to cathode ray television receivers

Info

Publication number
GB428926A
GB428926A GB3091/35A GB309135A GB428926A GB 428926 A GB428926 A GB 428926A GB 3091/35 A GB3091/35 A GB 3091/35A GB 309135 A GB309135 A GB 309135A GB 428926 A GB428926 A GB 428926A
Authority
GB
United Kingdom
Prior art keywords
frequency
television receivers
cathode ray
jan
oscillation
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
GB3091/35A
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Publication of GB428926A publication Critical patent/GB428926A/en
Expired legal-status Critical Current

Links

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

Abstract

428,926. Television receivers. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats-Unis, Montrouge, Seine, France. Jan. 30, 1935, No. 3091. Convention date, Jan. 31, 1934. Drawings to Specification. [Class 40 (iii)] In a cathode-ray receiver, a high-frequency oscillation of small amplitude is superimposed on the image-frequency scanning oscillation, so that the cathode ray performs rapid vertical oscillations along each line. The apparent thickness of the line is thereby maintained constant ; and striations, produced by variations in the size of the spot due to modulation, are avoided. The high-frequency oscillation may be the radio-frequency carrier used for transmission, or the local oscillations of a super-heterodyne receiver.
GB3091/35A 1934-01-31 1935-01-30 Improvements in or relating to cathode ray television receivers Expired GB428926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR629141X 1934-01-31

Publications (1)

Publication Number Publication Date
GB428926A true GB428926A (en) 1935-05-21

Family

ID=8990172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3091/35A Expired GB428926A (en) 1934-01-31 1935-01-30 Improvements in or relating to cathode ray television receivers

Country Status (6)

Country Link
US (1) US2143933A (en)
BE (1) BE407030A (en)
DE (1) DE629141C (en)
FR (1) FR781097A (en)
GB (1) GB428926A (en)
NL (1) NL41506C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946996C (en) * 1952-07-16 1956-08-09 Pye Ltd Arrangement for reducing the effect of interfering signals on television tubes
DE1097475B (en) * 1958-02-25 1961-01-19 Gretag Ag Television reproduction method and arrangement for its implementation
DE1254679B (en) * 1961-07-26 1967-11-23 Loewe Opta Gmbh Device for enlarging a television picture or picture section
US4533951A (en) * 1982-09-27 1985-08-06 Rca Corporation System for generating and displaying a compatible high definition television signal by progressive scanning

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764698A (en) * 1942-11-23 1956-09-25 Arthur R Knight Control system
FR1010583A (en) * 1948-09-14 1952-06-12 Improvements in means of reproducing visual images, in particular in television and cinema
NL151463B (en) * 1949-02-05 Zinkcon METHOD AND DEVICE FOR FORMING A SOIL PROTECTION, AS WELL AS SOIL PROTECTION, MANUFACTURED IN APPLICATION OF THE METHOD.
GB701902A (en) * 1950-02-28 1954-01-06 Marconi Wireless Telegraph Co Improvements in or relating to television, tele-cinematograph, radar and like signalsystems
US2623196A (en) * 1950-02-28 1952-12-23 Products And Licensing Corp Television apparatus and method for phase-shift scanning
US2717329A (en) * 1950-09-19 1955-09-06 Westinghouse Electric Corp Television scan system
US2823258A (en) * 1951-03-07 1958-02-11 Motorola Inc Television dot scanning system
US2681383A (en) * 1951-04-13 1954-06-15 Zenith Radio Corp Television receiver
US2722627A (en) * 1953-02-20 1955-11-01 Gen Precision Lab Inc Cathode ray tube spot wobble circuit
BE544857A (en) * 1955-02-01
US2832002A (en) * 1955-10-17 1958-04-22 Harvey M Owren Time calibrated oscilloscope sweep
US3003023A (en) * 1956-03-07 1961-10-03 Burroughs Corp Synchronous operation of beam switching tubes for color signal gating
FR1452731A (en) * 1965-07-29 1966-04-15 Commissariat Energie Atomique Time interval measurement method and device including application
US4612482A (en) * 1983-02-01 1986-09-16 General Electric Company Spatial pixel optimization technique
NL9002620A (en) * 1990-11-30 1992-06-16 Philips Nv IMAGE RECORDING SYSTEM.
US5995152A (en) * 1996-01-26 1999-11-30 Dell Usa, L.P., A Texas Limited Partnership Video monitor which superimposes a high frequency periodic wave over signals to vertical deflection plates to increase display quality in low resolution modes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946996C (en) * 1952-07-16 1956-08-09 Pye Ltd Arrangement for reducing the effect of interfering signals on television tubes
DE1097475B (en) * 1958-02-25 1961-01-19 Gretag Ag Television reproduction method and arrangement for its implementation
DE1254679B (en) * 1961-07-26 1967-11-23 Loewe Opta Gmbh Device for enlarging a television picture or picture section
US4533951A (en) * 1982-09-27 1985-08-06 Rca Corporation System for generating and displaying a compatible high definition television signal by progressive scanning

Also Published As

Publication number Publication date
FR781097A (en) 1935-05-08
US2143933A (en) 1939-01-17
NL41506C (en)
BE407030A (en)
DE629141C (en) 1936-04-23

Similar Documents

Publication Publication Date Title
GB428926A (en) Improvements in or relating to cathode ray television receivers
GB453043A (en) Improvements in or relating to cathode ray tube television and like reproducer apparatus
GB409970A (en) Improvements in television receiving systems
GB485991A (en) Improvements in or relating to television synchronizing systems
GB363605A (en) Improvements in or relating to sending and receiving synchronised systems for television, telecinematography, telemechanical devices and other applications
GB474434A (en) Improved method and device for supplying cathode ray tubes in television apparatus
GB462110A (en) Improvements in and relating to television
GB477329A (en) Improvements in or relating to composite signal devices
GB435417A (en) Detector arrangement for wireless receivers, more particularly for television purposes
GB460741A (en) Method for scanning pictures with high definition and using a narrow frequency band
GB387087A (en) Improvements in television
GB434936A (en) Improvements in or relating to television and like transmitters
GB421937A (en) Improvements in and relating to picture assembling in television receivers
GB387240A (en) Improvements in or relating to television and like receivers
GB439734A (en) Method and arrangement for wireless television transmission
GB425685A (en) Method of producing relaxation oscillations, more particularly for television purposes
GB415078A (en) Improvements in radio receiving apparatus
GB408903A (en) Thermionic oscillator modulator
GB461105A (en) Improvements in or relating to television systems and the like
GB493868A (en) Improvements in or relating to television transmission with cathode ray tubes
GB459260A (en) Improvements in or relating to television receivers
GB635068A (en) Improvements in or relating to circuit arrangements for use with television transmitting tubes
GB501532A (en) Improvements in or relating to television receivers
GB454319A (en) Television receiver
GB444774A (en) Improvements in or relating to methods for intelligence transference by radio