GB1339488A - Channel selection system including variable capacitance diode tuning - Google Patents

Channel selection system including variable capacitance diode tuning

Info

Publication number
GB1339488A
GB1339488A GB4081171A GB4081171A GB1339488A GB 1339488 A GB1339488 A GB 1339488A GB 4081171 A GB4081171 A GB 4081171A GB 4081171 A GB4081171 A GB 4081171A GB 1339488 A GB1339488 A GB 1339488A
Authority
GB
United Kingdom
Prior art keywords
diode
vhf
gate
nand gate
switch
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
GB4081171A
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.)
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
Publication of GB1339488A publication Critical patent/GB1339488A/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

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB4081171A 1970-09-12 1971-09-01 Channel selection system including variable capacitance diode tuning Expired GB1339488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8027370A JPS5123121B1 (enrdf_load_stackoverflow) 1970-09-12 1970-09-12

Publications (1)

Publication Number Publication Date
GB1339488A true GB1339488A (en) 1973-12-05

Family

ID=13713661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4081171A Expired GB1339488A (en) 1970-09-12 1971-09-01 Channel selection system including variable capacitance diode tuning

Country Status (3)

Country Link
JP (1) JPS5123121B1 (enrdf_load_stackoverflow)
AU (1) AU468431B2 (enrdf_load_stackoverflow)
GB (1) GB1339488A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522247A1 (de) * 1974-05-20 1975-11-27 Matsushita Electric Ind Co Ltd Kanalwaehler

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139681B2 (enrdf_load_stackoverflow) * 1972-07-24 1976-10-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522247A1 (de) * 1974-05-20 1975-11-27 Matsushita Electric Ind Co Ltd Kanalwaehler

Also Published As

Publication number Publication date
AU468431B2 (en) 1976-01-15
AU3341371A (en) 1973-03-22
JPS5123121B1 (enrdf_load_stackoverflow) 1976-07-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years