GB461330A - Improvements relating to radio receivers - Google Patents

Improvements relating to radio receivers

Info

Publication number
GB461330A
GB461330A GB2296935A GB2296935A GB461330A GB 461330 A GB461330 A GB 461330A GB 2296935 A GB2296935 A GB 2296935A GB 2296935 A GB2296935 A GB 2296935A GB 461330 A GB461330 A GB 461330A
Authority
GB
United Kingdom
Prior art keywords
circuits
interference
branch circuit
whistle
valve
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
GB2296935A
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.)
ARTHUR EVEREST FALKUS
EK Cole Ltd
Original Assignee
ARTHUR EVEREST FALKUS
EK Cole 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 ARTHUR EVEREST FALKUS, EK Cole Ltd filed Critical ARTHUR EVEREST FALKUS
Priority to GB2296935A priority Critical patent/GB461330A/en
Publication of GB461330A publication Critical patent/GB461330A/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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)

Abstract

461,330. Valve circuits for wireless reception; filter circuits. COLE, Ltd., E. K., aud FALKUS, A. E. Aug. 15, 1935, No. 22969. [Classes 40 (iii) and 40 (v)] In a radio receiver, the whistle due to interference by adjacent wave-lengths or other causes is wholly or in part suppressed by connecting across the path of the detected signal a condenser 3 in series with an inductance 5, the latter being shunted by a variable resistance 6. The effective reactance in the branch circuit 3, 5, 6, is zero at the whistle frequency. When interference is not present, the resistance serves as a tone control, and when the tapping passes its extreme lower position the control knob may open a switch 4. Other branch circuits such as 8 may be tuned to other interfering frequencies. The branch circuit may be interposed between a detector valve V1 and an amplifier V2.
GB2296935A 1935-08-15 1935-08-15 Improvements relating to radio receivers Expired GB461330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2296935A GB461330A (en) 1935-08-15 1935-08-15 Improvements relating to radio receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2296935A GB461330A (en) 1935-08-15 1935-08-15 Improvements relating to radio receivers

Publications (1)

Publication Number Publication Date
GB461330A true GB461330A (en) 1937-02-15

Family

ID=10187980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2296935A Expired GB461330A (en) 1935-08-15 1935-08-15 Improvements relating to radio receivers

Country Status (1)

Country Link
GB (1) GB461330A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201986A2 (en) * 1985-04-10 1986-11-20 Uniden Corporation Intermodulation suppressing circuit
WO2010020557A1 (en) * 2008-08-21 2010-02-25 Cambridge Silicon Radio Limited Tuneable filter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201986A2 (en) * 1985-04-10 1986-11-20 Uniden Corporation Intermodulation suppressing circuit
EP0201986A3 (en) * 1985-04-10 1988-11-30 Uniden Corporation Intermodulation suppressing circuit
WO2010020557A1 (en) * 2008-08-21 2010-02-25 Cambridge Silicon Radio Limited Tuneable filter
GB2467858A (en) * 2008-08-21 2010-08-18 Cambridge Silicon Radio Ltd Tuneable filter
US7949308B2 (en) 2008-08-21 2011-05-24 Cambridge Silicon Radio Limited Tuneable filter

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