GB444177A - Improvements in and relating to wireless and like receivers - Google Patents

Improvements in and relating to wireless and like receivers

Info

Publication number
GB444177A
GB444177A GB2359134A GB2359134A GB444177A GB 444177 A GB444177 A GB 444177A GB 2359134 A GB2359134 A GB 2359134A GB 2359134 A GB2359134 A GB 2359134A GB 444177 A GB444177 A GB 444177A
Authority
GB
United Kingdom
Prior art keywords
signals
synchronizing signals
image
synchronizing
output
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
GB2359134A
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 to GB2359134A priority Critical patent/GB444177A/en
Publication of GB444177A publication Critical patent/GB444177A/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
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Toys (AREA)

Abstract

444,177. Television; wireless receiving systems. AGATE, C. S., 33, Dornton Road, South Croydon, and PERCIVAL, W. S., 6, York Mansions, York Avenue, Hanwell, Middlesex. Aug. 15, 1934, No. 23591. [Classes 40 (iii) and 40 (v)] In a wireless or like receiver for a carrier wave modulated in opposite senses by two sets of signals (e.g. by image and synchronizing signals), the signals of one set occurring in intervals between the signals of the other set, separate demodulating detectors are provided for the two signals, the output of one being in the opposite sense to the output of the other. In the television receiver described, the carrier in strengthened by image signals and weakened by synchronizing signals, but if frequency modulation is used, the image signals may be represented by frequencies above normal and the synchronizing signals by frequencies below normal, or vice versa. The image signals, passing through the detector 7 and series load resistance 13, are applied through potentiometer 11 to the modulating electrode 17 of the cathoderay tube in a direction to make this electrode more positive. The synchronizing signals pass through condenser 20 and detector 21, shunted by a load resistance 25 connected to the grid of a separator valve 26 biassed to cut off the anode current except when synchronizing signals are received. The output circuits of the two detectors may have frequency characteristics suited to their respective purposes. Specification 422,824 is referred to.
GB2359134A 1934-08-15 1934-08-15 Improvements in and relating to wireless and like receivers Expired GB444177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2359134A GB444177A (en) 1934-08-15 1934-08-15 Improvements in and relating to wireless and like receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2359134A GB444177A (en) 1934-08-15 1934-08-15 Improvements in and relating to wireless and like receivers

Publications (1)

Publication Number Publication Date
GB444177A true GB444177A (en) 1936-03-16

Family

ID=10198152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2359134A Expired GB444177A (en) 1934-08-15 1934-08-15 Improvements in and relating to wireless and like receivers

Country Status (1)

Country Link
GB (1) GB444177A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629822A (en) * 1947-01-31 1953-02-24 Motorola Inc High-frequency coupling circuits
US2718551A (en) * 1950-03-28 1955-09-20 Zenith Radio Corp Frequency-compensated video amplifier output circuit with constant synchronizing signal output
US3018327A (en) * 1958-07-01 1962-01-23 Westinghouse Electric Corp Tuning system for television receivers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629822A (en) * 1947-01-31 1953-02-24 Motorola Inc High-frequency coupling circuits
US2718551A (en) * 1950-03-28 1955-09-20 Zenith Radio Corp Frequency-compensated video amplifier output circuit with constant synchronizing signal output
US3018327A (en) * 1958-07-01 1962-01-23 Westinghouse Electric Corp Tuning system for television receivers

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