GB341766A - Improvements in or relating to radio and similar high frequency communication systems - Google Patents

Improvements in or relating to radio and similar high frequency communication systems

Info

Publication number
GB341766A
GB341766A GB7405/30A GB740530A GB341766A GB 341766 A GB341766 A GB 341766A GB 7405/30 A GB7405/30 A GB 7405/30A GB 740530 A GB740530 A GB 740530A GB 341766 A GB341766 A GB 341766A
Authority
GB
United Kingdom
Prior art keywords
relating
radio
high frequency
communication systems
frequency communication
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
GB7405/30A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB341766A publication Critical patent/GB341766A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H04B1/302—Circuits for homodyne or synchrodyne receivers for single sideband receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal
    • 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
    • H04N5/52—Automatic gain control

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Radio Relay Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

341,766. Wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. March 6, 1930, No. 7405. Convention date, March 8, 1929. Addition to 332,834, [Class 40 (v), Wireless signalling &c.]. Class 40 (v).] The auxiliary transmitted control-frequency, utilized as described in the parent Specification for automatic gain regulation, and also for synchronizing the frequency of a local homodyne generator, is now made to carry an additional message by keying.
GB7405/30A 1928-10-16 1930-03-06 Improvements in or relating to radio and similar high frequency communication systems Expired GB341766A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DET35820D DE509946C (en) 1928-10-16 1928-10-16 Receiving arrangement with carrier wave addition by means of a local generator automatically regulated in frequency
DE341766X 1929-03-08

Publications (1)

Publication Number Publication Date
GB341766A true GB341766A (en) 1931-01-22

Family

ID=25821141

Family Applications (2)

Application Number Title Priority Date Filing Date
GB31336/29A Expired GB332834A (en) 1928-10-16 1929-10-15
GB7405/30A Expired GB341766A (en) 1928-10-16 1930-03-06 Improvements in or relating to radio and similar high frequency communication systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB31336/29A Expired GB332834A (en) 1928-10-16 1929-10-15

Country Status (4)

Country Link
US (1) US1917395A (en)
DE (1) DE509946C (en)
FR (2) FR683292A (en)
GB (2) GB332834A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462630A (en) * 1945-02-28 1949-02-22 Honeywell Regulator Co Phase-sensitive self-balancing frequency meter
DE872969C (en) * 1951-01-13 1953-04-09 Siemens Ag Method for reducing fading in wireless single sideband transmissions
US2871349A (en) * 1954-07-14 1959-01-27 Jonas M Shapiro Discriminator circuit
US3101448A (en) * 1954-12-23 1963-08-20 Gen Electric Synchronous detector system
FR2526554B1 (en) * 1982-05-06 1985-06-07 Telecommunications Sa METHOD FOR REGULATING LUMINOUS INFORMATION TRANSMITTERS AND THE IMPLEMENTING SYSTEM

Also Published As

Publication number Publication date
FR683292A (en) 1930-06-10
US1917395A (en) 1933-07-11
GB332834A (en) 1930-07-31
DE509946C (en) 1930-10-14
FR37916E (en) 1931-02-07

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