FR1371812A - Radiorécepteur hétérodyne à gammes d'accord préréglées fixes - Google Patents

Radiorécepteur hétérodyne à gammes d'accord préréglées fixes

Info

Publication number
FR1371812A
FR1371812A FR935254A FR935254A FR1371812A FR 1371812 A FR1371812 A FR 1371812A FR 935254 A FR935254 A FR 935254A FR 935254 A FR935254 A FR 935254A FR 1371812 A FR1371812 A FR 1371812A
Authority
FR
France
Prior art keywords
radio receiver
fixed preset
tuning ranges
preset tuning
heterodyne 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
FR935254A
Other languages
English (en)
French (fr)
Inventor
Joseph Leostic
Lucien Babany
Alain Cabet
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.)
Alcatel CIT SA
Nokia Inc
Original Assignee
Compagnie Industrielle de Telecommunication CIT Alcatel SA
Nokia Inc
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 Compagnie Industrielle de Telecommunication CIT Alcatel SA, Nokia Inc filed Critical Compagnie Industrielle de Telecommunication CIT Alcatel SA
Priority to FR935254A priority Critical patent/FR1371812A/fr
Priority to BE645941A priority patent/BE645941A/xx
Priority to LU45797D priority patent/LU45797A1/xx
Priority to NL6405483A priority patent/NL6405483A/xx
Application granted granted Critical
Publication of FR1371812A publication Critical patent/FR1371812A/fr
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
    • H04B1/302—Circuits for homodyne or synchrodyne receivers for single sideband receivers
    • 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
    • H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
FR935254A 1963-05-17 1963-05-17 Radiorécepteur hétérodyne à gammes d'accord préréglées fixes Expired FR1371812A (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR935254A FR1371812A (fr) 1963-05-17 1963-05-17 Radiorécepteur hétérodyne à gammes d'accord préréglées fixes
BE645941A BE645941A (enExample) 1963-05-17 1964-03-31
LU45797D LU45797A1 (enExample) 1963-05-17 1964-04-02
NL6405483A NL6405483A (enExample) 1963-05-17 1964-05-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR935254A FR1371812A (fr) 1963-05-17 1963-05-17 Radiorécepteur hétérodyne à gammes d'accord préréglées fixes

Publications (1)

Publication Number Publication Date
FR1371812A true FR1371812A (fr) 1964-09-11

Family

ID=8804140

Family Applications (1)

Application Number Title Priority Date Filing Date
FR935254A Expired FR1371812A (fr) 1963-05-17 1963-05-17 Radiorécepteur hétérodyne à gammes d'accord préréglées fixes

Country Status (4)

Country Link
BE (1) BE645941A (enExample)
FR (1) FR1371812A (enExample)
LU (1) LU45797A1 (enExample)
NL (1) NL6405483A (enExample)

Also Published As

Publication number Publication date
NL6405483A (enExample) 1964-11-18
BE645941A (enExample) 1964-09-30
LU45797A1 (enExample) 1965-10-04

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