FR804837A - Perfectionnements aux radio-récepteurs - Google Patents

Perfectionnements aux radio-récepteurs

Info

Publication number
FR804837A
FR804837A FR804837DA FR804837A FR 804837 A FR804837 A FR 804837A FR 804837D A FR804837D A FR 804837DA FR 804837 A FR804837 A FR 804837A
Authority
FR
France
Prior art keywords
radio receivers
receivers
radio
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
Other languages
English (en)
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR804837A publication Critical patent/FR804837A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • H03H7/0161—Bandpass filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • 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
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
FR804837D 1935-04-26 1936-04-09 Perfectionnements aux radio-récepteurs Expired FR804837A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12558/35A GB455649A (en) 1935-04-26 1935-04-26 Improvements in or relating to radio receivers

Publications (1)

Publication Number Publication Date
FR804837A true FR804837A (fr) 1936-11-03

Family

ID=10006854

Family Applications (1)

Application Number Title Priority Date Filing Date
FR804837D Expired FR804837A (fr) 1935-04-26 1936-04-09 Perfectionnements aux radio-récepteurs

Country Status (3)

Country Link
US (1) US2141756A (fr)
FR (1) FR804837A (fr)
GB (1) GB455649A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940837C (de) * 1938-08-04 1956-03-29 Lorenz C Ag Fernsehempfaenger
DE955605C (de) * 1952-07-12 1957-01-03 Blaupunkt Werke G M B H Zweign Kombiniertes Fernseh- und Rundfunkgeraet

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505754A (en) * 1945-08-02 1950-05-02 Edward E Combs Superheterodyne circuit
US2597142A (en) * 1945-12-20 1952-05-20 Cossor Ltd A C Radio receiver circuits
US2598857A (en) * 1949-01-29 1952-06-03 Rca Corp Television signal converter
US2715681A (en) * 1949-09-21 1955-08-16 Du Mont Allen B Lab Inc Tuner for ultra high frequencies
NL88018C (fr) * 1951-10-13
US2763776A (en) * 1951-10-18 1956-09-18 Avco Mfg Corp Ultrahigh-frequency converter for very-high-frequency television receiver
US2665377A (en) * 1951-12-20 1954-01-05 Sarkes Tarzian Universal tuning system for television receivers
BE517017A (fr) * 1952-01-21
US2849602A (en) * 1952-03-01 1958-08-26 Du Mont Allen B Lab Inc Heterodyne circuit
NL167858B (nl) * 1952-03-03 Intensiv Filter Gmbh Filterinrichting.
US2787703A (en) * 1952-03-03 1957-04-02 Philips Corp Receiver for two radio frequency bands
US2989627A (en) * 1952-08-09 1961-06-20 Itt Television receiver with ultra high frequency cavity tuner inside very high frequency turret tuner
US2773988A (en) * 1952-11-26 1956-12-11 Standard Coil Prod Co Inc Frequency selector
US2902598A (en) * 1953-03-31 1959-09-01 Radion Corp Double conversion multi-band tuning unit
US2927203A (en) * 1955-09-05 1960-03-01 Burke John Donald Control member for simultaneous actuation of multi-band tuner and control element
US2873360A (en) * 1955-11-29 1959-02-10 Aladdin Ind Inc Very high frequency tuner convertible to intermediate frequency amplifier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940837C (de) * 1938-08-04 1956-03-29 Lorenz C Ag Fernsehempfaenger
DE955605C (de) * 1952-07-12 1957-01-03 Blaupunkt Werke G M B H Zweign Kombiniertes Fernseh- und Rundfunkgeraet

Also Published As

Publication number Publication date
GB455649A (en) 1936-10-26
US2141756A (en) 1938-12-27

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