GB1312932A - Tuning system for selecting channels - Google Patents

Tuning system for selecting channels

Info

Publication number
GB1312932A
GB1312932A GB1312932DA GB1312932A GB 1312932 A GB1312932 A GB 1312932A GB 1312932D A GB1312932D A GB 1312932DA GB 1312932 A GB1312932 A GB 1312932A
Authority
GB
United Kingdom
Prior art keywords
channel
pulse generator
circuit
clock pulse
diodes
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
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
Priority claimed from JP44030692A external-priority patent/JPS4932001B1/ja
Priority claimed from JP3069469A external-priority patent/JPS5040304B1/ja
Priority claimed from JP3069369A external-priority patent/JPS5145201B1/ja
Priority claimed from JP3088269A external-priority patent/JPS503884B1/ja
Priority claimed from JP44030881A external-priority patent/JPS503883B1/ja
Priority claimed from JP4125569A external-priority patent/JPS4938281B1/ja
Priority claimed from JP4304169A external-priority patent/JPS522569B1/ja
Priority claimed from JP4304069A external-priority patent/JPS522243B1/ja
Priority claimed from JP6362569A external-priority patent/JPS513163B1/ja
Priority claimed from JP6362469A external-priority patent/JPS513162B1/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1312932A publication Critical patent/GB1312932A/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)
GB1312932D 1969-04-14 1970-04-13 Tuning system for selecting channels Expired GB1312932A (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP3069369A JPS5145201B1 (de) 1969-04-14 1969-04-14
JP44030692A JPS4932001B1 (de) 1969-04-14 1969-04-14
JP3069469A JPS5040304B1 (de) 1969-04-14 1969-04-14
JP44030881A JPS503883B1 (de) 1969-04-16 1969-04-16
JP3088269A JPS503884B1 (de) 1969-04-16 1969-04-16
JP4125569A JPS4938281B1 (de) 1969-05-23 1969-05-23
JP4304169A JPS522569B1 (de) 1969-05-28 1969-05-28
JP4304069A JPS522243B1 (de) 1969-05-28 1969-05-28
JP4981469 1969-06-23
JP6362569A JPS513163B1 (de) 1969-08-08 1969-08-08
JP6362469A JPS513162B1 (de) 1969-08-08 1969-08-08

Publications (1)

Publication Number Publication Date
GB1312932A true GB1312932A (en) 1973-04-11

Family

ID=27581932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1312932D Expired GB1312932A (en) 1969-04-14 1970-04-13 Tuning system for selecting channels

Country Status (4)

Country Link
DE (1) DE2017594C3 (de)
FR (1) FR2043259A1 (de)
GB (1) GB1312932A (de)
NL (1) NL152415B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2321214A1 (de) * 1972-04-27 1973-11-08 Sony Corp Schaltungsanordnung zum ueberspringen eines unbenutzten kanals

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2026107C3 (de) * 1969-05-29 1975-05-15 Rca Corp Kanalwähleinrichtung für einen Fernsehempfänger
JPS5115922B1 (de) * 1970-11-30 1976-05-20
JPS5112361B1 (de) * 1970-11-30 1976-04-19
JPS5112362B1 (de) * 1970-11-30 1976-04-19
JPS5240802B2 (de) * 1972-01-25 1977-10-14
JPS4984701A (de) * 1972-12-21 1974-08-14
JPS5325721B2 (de) * 1973-11-07 1978-07-28

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA804174A (en) 1969-01-14 B. Cavanagh Robert Tuning of receivers such as radio or television receivers
DE1141671B (de) 1961-03-29 1962-12-27 Telefunken Patent Elektronischer Ringschalter zur nacheinanderfolgenden kurzzeitigen Eintastung verschiedener Spannungsquellen auf eine gemeinsame Leitung
DE1235373B (de) 1961-06-16 1967-03-02 Emi Ltd Schaltkreis zum Anschalten einer Wechselspannungsquelle an eine Belastung mittels der Emitter-Kollektor-Strecke eines Transistors
FR1330090A (fr) * 1961-07-31 1963-06-14 Siemens Ag émetteur d'informations télécommandé
DE1466450B2 (de) 1963-12-18 1972-03-02 Telefunken Patentverwertungsge Seilschaft mbH, 7900 Ulm Abstimmeinrichtung fuer geraete der hochfrequenz nachrichten technik insbesondere fernsehempfaenger
US3293572A (en) * 1964-06-26 1966-12-20 Devenco Inc Electrically variable resonant circuit controlled by the frequency of a separate pilot input signal
US3496473A (en) * 1966-11-14 1970-02-17 Gen Dynamics Corp Automatically tuned communications systems
GB1281061A (en) * 1968-08-30 1972-07-12 Matsushita Electric Ind Co Ltd Channel selector and tuner combination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2321214A1 (de) * 1972-04-27 1973-11-08 Sony Corp Schaltungsanordnung zum ueberspringen eines unbenutzten kanals

Also Published As

Publication number Publication date
NL152415B (nl) 1977-02-15
NL7005283A (de) 1970-10-16
DE2017594C3 (de) 1980-02-07
FR2043259A1 (de) 1971-02-12
DE2017594B2 (de) 1972-05-04
DE2017594A1 (de) 1970-10-29

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Legal Events

Date Code Title Description
49R Reference inserted (sect. 9/1949)
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years