GB521522A - Improvements relating to television systems - Google Patents

Improvements relating to television systems

Info

Publication number
GB521522A
GB521522A GB33949/38A GB3394938A GB521522A GB 521522 A GB521522 A GB 521522A GB 33949/38 A GB33949/38 A GB 33949/38A GB 3394938 A GB3394938 A GB 3394938A GB 521522 A GB521522 A GB 521522A
Authority
GB
United Kingdom
Prior art keywords
picture
delay
television
signals
line
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
GB33949/38A
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.)
Kolster Brandes Ltd
Original Assignee
Kolster Brandes Ltd
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 Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Publication of GB521522A publication Critical patent/GB521522A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/54—Arrangements for centring ray or beam
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K6/00—Manipulating pulses having a finite slope and not covered by one of the other main groups of this subclass
    • H03K6/02—Amplifying pulses
    • 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
    • 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
    • H04N3/227—Centering
    • 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

Abstract

521,522. Television. KOLSTER-BRANDES. Ltd., and SMYTH, C. N. Nov. 22, 1938, No. 33949. Addition to 520,235. [Class 40 (iii)] The position of the picture image with respect to the screen in the television receiver described in the parent Specification is adjusted by adjusting or inserting a time delay device in the path of a synchronizing pulse train for a time base of the receiver. Television signals at a receiving station are fed to a high-frequency amplifier A and detector B, the output of which is applied through a video frequency amplifier C to a cathode ray tube D. From the detector B signals also pass to an amplitude filter E which separates the synchronizing signals and passes them through a variable time delay device G and thence to the line scanning unit H. The delay device is arranged to produce a delay of from half a line to one and a half lines and is normally set to a delay of one line so that the picture occupies the raster in the normal way and reduction and increase in the delay time move the picture to the right and left respectively. The method may be applied either to the vertical or horizontal positioning of the picture or to both. From the amplitude filter E there is also a direct connection to the frame scannin g time base F.
GB33949/38A 1938-10-11 1938-11-22 Improvements relating to television systems Expired GB521522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB233059X 1938-10-11

Publications (1)

Publication Number Publication Date
GB521522A true GB521522A (en) 1940-05-23

Family

ID=10193472

Family Applications (4)

Application Number Title Priority Date Filing Date
GB29464/38A Expired GB520235A (en) 1938-10-11 1938-10-11 Improvements in or relating to television receivers
GB33949/38A Expired GB521522A (en) 1938-10-11 1938-11-22 Improvements relating to television systems
GB7085/39A Expired GB525967A (en) 1938-10-11 1939-03-03 Improvements relating to television receivers
GB8175/39A Expired GB526361A (en) 1938-10-11 1939-03-14 Improvements relating to television receivers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB29464/38A Expired GB520235A (en) 1938-10-11 1938-10-11 Improvements in or relating to television receivers

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB7085/39A Expired GB525967A (en) 1938-10-11 1939-03-03 Improvements relating to television receivers
GB8175/39A Expired GB526361A (en) 1938-10-11 1939-03-14 Improvements relating to television receivers

Country Status (4)

Country Link
BE (3) BE436648A (en)
CH (1) CH233059A (en)
FR (4) FR861290A (en)
GB (4) GB520235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049965A2 (en) * 1980-09-29 1982-04-21 Rca Corporation Television receiver having a horizontal automatic frequency and phase control system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679550A (en) * 1947-12-17 1954-05-25 Louis W Parker Television receiver with regulated high-voltage power supply
US2510670A (en) * 1949-02-10 1950-06-06 Garod Radio Corp Scan magnitude control for cathode-ray tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049965A2 (en) * 1980-09-29 1982-04-21 Rca Corporation Television receiver having a horizontal automatic frequency and phase control system
EP0049965A3 (en) * 1980-09-29 1983-04-13 Rca Corporation Television receiver having a horizontal automatic frequency and phase control system

Also Published As

Publication number Publication date
BE476203A (en)
GB526361A (en) 1940-09-17
FR51049E (en) 1941-05-28
CH233059A (en) 1944-06-30
FR50966E (en) 1941-05-19
BE436648A (en) 1939-11-30
GB520235A (en) 1940-04-18
BE437228A (en)
GB525967A (en) 1940-09-09
FR861290A (en) 1941-02-05
FR51043E (en) 1941-05-28

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