FR1546633A - Improvements made to tuning systems - Google Patents

Improvements made to tuning systems

Info

Publication number
FR1546633A
FR1546633A FR119441A FR119441A FR1546633A FR 1546633 A FR1546633 A FR 1546633A FR 119441 A FR119441 A FR 119441A FR 119441 A FR119441 A FR 119441A FR 1546633 A FR1546633 A FR 1546633A
Authority
FR
France
Prior art keywords
improvements made
tuning systems
tuning
systems
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
FR119441A
Other languages
French (fr)
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to FR119441A priority Critical patent/FR1546633A/en
Application granted granted Critical
Publication of FR1546633A publication Critical patent/FR1546633A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
    • 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
    • H03J5/0218—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values
FR119441A 1966-08-30 1967-08-30 Improvements made to tuning systems Expired FR1546633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR119441A FR1546633A (en) 1966-08-30 1967-08-30 Improvements made to tuning systems

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP5775066 1966-08-30
JP5842666 1966-09-02
JP24767 1966-12-28
JP428467 1967-01-19
JP552767 1967-01-26
JP756267 1967-01-27
JP1150767 1967-02-10
JP1353067 1967-03-01
JP2412867 1967-04-14
JP3322267 1967-05-23
FR119441A FR1546633A (en) 1966-08-30 1967-08-30 Improvements made to tuning systems

Publications (1)

Publication Number Publication Date
FR1546633A true FR1546633A (en) 1968-11-22

Family

ID=27581594

Family Applications (1)

Application Number Title Priority Date Filing Date
FR119441A Expired FR1546633A (en) 1966-08-30 1967-08-30 Improvements made to tuning systems

Country Status (1)

Country Link
FR (1) FR1546633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2094151A1 (en) * 1970-06-09 1972-02-04 Int Standard Electric Corp
FR2682832A1 (en) * 1991-10-22 1993-04-23 Thomson Csf DEVICE FOR IMPROVING THE COHABITATION IN THE PRESENCE OF INTERFERERS OF RADIOELECTRIC TRANSCEIVERS WITH A FREQUENCY AGILE TRANSCEIVER.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2094151A1 (en) * 1970-06-09 1972-02-04 Int Standard Electric Corp
FR2682832A1 (en) * 1991-10-22 1993-04-23 Thomson Csf DEVICE FOR IMPROVING THE COHABITATION IN THE PRESENCE OF INTERFERERS OF RADIOELECTRIC TRANSCEIVERS WITH A FREQUENCY AGILE TRANSCEIVER.
EP0539262A1 (en) * 1991-10-22 1993-04-28 Thomson-Csf Device for improving the simultaneous operation of interfering transmitter-receivers and a frequency-agile transmitter receiver

Similar Documents

Publication Publication Date Title
FR1495797A (en) Improvements to display systems
FR1519160A (en) Improvements to conveyor systems
FR1500110A (en) Improvements to turbo-reactors
FR1513651A (en) Improvements to locks
FR1386718A (en) Improvements to ignition devices
FR1330208A (en) Improvements to evacuation systems
FR1546633A (en) Improvements made to tuning systems
FR1484680A (en) Improvements to obturator devices
BE762872R (en) IMPROVEMENTS TO ASSEMBLY DEVICES FOR
FR1494776A (en) Improvements to electrodialysis devices
FR1495090A (en) Improvements to polyamide films
FR1536476A (en) Improvements made to aquaplanes
FR1472226A (en) Improvements to alarm systems
FR1429786A (en) Improvements to alarm systems
FR1470476A (en) Carburetor improvements
FR1306859A (en) Improvements made to tuning systems
FR1466715A (en) Improvements to polyamide films
FR1545998A (en) Improvements in aerial exploration devices
FR1500365A (en) Improvements made to alternators-rectifiers
FR1497543A (en) Improvements to single-control tuning devices
FR1491508A (en) Improvements to dehydrating devices
FR1489743A (en) Improvements to radio-localization systems
FR1535135A (en) Improvements to adjustment devices
FR1518361A (en) Improvements to tape or tape devices
FR1486019A (en) Improvements to coupling devices