CA918761A - Tuning control system - Google Patents

Tuning control system

Info

Publication number
CA918761A
CA918761A CA079428A CA79428A CA918761A CA 918761 A CA918761 A CA 918761A CA 079428 A CA079428 A CA 079428A CA 79428 A CA79428 A CA 79428A CA 918761 A CA918761 A CA 918761A
Authority
CA
Canada
Prior art keywords
control system
tuning control
tuning
control
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
CA079428A
Other languages
English (en)
Other versions
CA79428S (en
Inventor
E. Spies Rolf
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA918761A publication Critical patent/CA918761A/en
Expired 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
    • H03J5/0218—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
    • H03J5/0227—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 using a counter
    • 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
CA079428A 1969-04-18 1970-04-07 Tuning control system Expired CA918761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81737969A 1969-04-18 1969-04-18

Publications (1)

Publication Number Publication Date
CA918761A true CA918761A (en) 1973-01-09

Family

ID=25222954

Family Applications (1)

Application Number Title Priority Date Filing Date
CA079428A Expired CA918761A (en) 1969-04-18 1970-04-07 Tuning control system

Country Status (4)

Country Link
US (1) US3596183A (pt)
BR (1) BR7018271D0 (pt)
CA (1) CA918761A (pt)
DE (1) DE2018342B2 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2028400B2 (de) * 1970-06-09 1978-04-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Tastschaltung für eine programmierte Frequenzwahl in Rundfunk- und Fernsehgeräten
DE2041403A1 (de) * 1970-08-14 1972-02-17 Loewe Opta Gmbh Verfahren zur Kanalwahl fuer Empfangsgeraete
DE2107714C3 (de) * 1971-02-18 1981-08-06 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Schaltung zum Umschalten der Resonanzfrequenzen elektrischer Schwingkreise
US3766407A (en) * 1971-03-26 1973-10-16 Grundig Emv Arrangement for applying a signal to a selected line
US3746886A (en) * 1971-10-15 1973-07-17 Warwick Electronics Inc Memory circuit
US3811100A (en) * 1972-04-20 1974-05-14 Motorola Inc Channel selector and indicator for multi-channel receiver
JPS5234162B2 (pt) * 1972-04-27 1977-09-01
NL7211592A (pt) * 1972-08-25 1974-02-27
JPS5338041B2 (pt) * 1973-03-29 1978-10-13
US3895303A (en) * 1973-09-04 1975-07-15 Gen Res Electronics Inc Oscillator-actuated bandswitch
DE2357371C2 (de) * 1973-11-16 1982-08-12 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Kanalwähler
JPS5442201B2 (pt) * 1973-11-26 1979-12-13
JPS51130112A (en) * 1975-05-06 1976-11-12 General Res Obu Erekutoronitsukusu:Kk Signal probing receiver
IT1075338B (it) * 1977-04-15 1985-04-22 Philips Spa Unita' di selezione di canali per apparecchi televisivi
US4914679A (en) * 1987-07-27 1990-04-03 Hitachi, Ltd. Fuel assembly
US8374566B2 (en) * 2008-04-04 2013-02-12 Nxp B.V. Integrated wideband RF tracking filter for RF front end with parallel band switched tuned amplifiers

Also Published As

Publication number Publication date
US3596183A (en) 1971-07-27
DE2018342A1 (de) 1971-01-07
BR7018271D0 (pt) 1973-05-17
DE2018342B2 (de) 1973-10-25

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