GB8704179D0 - Electronic tuners - Google Patents

Electronic tuners

Info

Publication number
GB8704179D0
GB8704179D0 GB878704179A GB8704179A GB8704179D0 GB 8704179 D0 GB8704179 D0 GB 8704179D0 GB 878704179 A GB878704179 A GB 878704179A GB 8704179 A GB8704179 A GB 8704179A GB 8704179 D0 GB8704179 D0 GB 8704179D0
Authority
GB
United Kingdom
Prior art keywords
electronic tuners
tuners
electronic
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.)
Withdrawn
Application number
GB878704179A
Other versions
GB2187906A (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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of GB8704179D0 publication Critical patent/GB8704179D0/en
Publication of GB2187906A publication Critical patent/GB2187906A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H03J5/0254—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 transfered to a D/A converter
    • H03J5/0263—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 transfered to a D/A converter the digital values being held in an auxiliary non erasable memory
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0033—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for voltage synthesis with a D/A converter
GB08704179A 1986-03-12 1987-02-23 Electronic tuners Withdrawn GB2187906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5528686A JPS62210719A (en) 1986-03-12 1986-03-12 Electronic tuner

Publications (2)

Publication Number Publication Date
GB8704179D0 true GB8704179D0 (en) 1987-04-01
GB2187906A GB2187906A (en) 1987-09-16

Family

ID=12994338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08704179A Withdrawn GB2187906A (en) 1986-03-12 1987-02-23 Electronic tuners

Country Status (3)

Country Link
JP (1) JPS62210719A (en)
DE (1) DE3707839A1 (en)
GB (1) GB2187906A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2578951B2 (en) * 1988-10-31 1997-02-05 日本電気株式会社 Antenna tuning control circuit
ES2060528B1 (en) * 1992-10-21 1995-05-16 Fagor S Coop Ltda PROGRAMMABLE ELECTRONIC TUNER FOR COLLECTIVE ANTENNAS OF T.V.
FI94689C (en) * 1992-12-10 1995-10-10 Nokia Mobile Phones Ltd Reconciliation of tuning circuits in a radio receiver
IT1270425B (en) * 1993-06-07 1997-05-05 Mivar S R L Frequency synthesis type tuner for TV receiver - calibrates by information representing tuning voltage values stored in digital type memory
US5905948A (en) * 1995-07-25 1999-05-18 Toko Kabushiki Kaisha High frequency channel selecting circuit for radio receiver and method of manufacturing tuning circuits therefor
US5925057A (en) * 1998-01-26 1999-07-20 Blomdahl Medical Ear piercing apparatus
ES2328503T5 (en) † 2004-09-27 2018-06-29 Unitron Electronic filter device for receiving TV signals

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1276815A (en) * 1970-02-04 1972-06-07 Motorola Inc A system for selecting one of a plurality of control units for tuning a wave signal receiver
DE2814577A1 (en) * 1978-04-05 1979-10-11 Nordmende Radio receiver with microcomputer - generating control signals for input and main tuning circuits and controlling changeover
DE2834231A1 (en) * 1978-08-04 1980-02-28 Blaupunkt Werke Gmbh Synchronisation of oscillator with input circuit of superhet receiver - sorting control voltages for input circuit corresp. to those of oscillator
US4402089A (en) * 1981-09-16 1983-08-30 Rca Corporation Television tuning system with electronic frequency adjustment apparatus
US4481673A (en) * 1983-03-28 1984-11-06 Rca Corporation RF Prom tracking for tuners
DE3332206A1 (en) * 1983-09-07 1985-04-25 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth METHOD FOR MATCHING A MULTI-STAGE SELECTIVE AMPLIFIER AND ARRANGEMENT FOR IMPLEMENTING THE METHOD

Also Published As

Publication number Publication date
DE3707839A1 (en) 1987-09-24
JPS62210719A (en) 1987-09-16
GB2187906A (en) 1987-09-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)