GB1542138A - Channel selectors - Google Patents

Channel selectors

Info

Publication number
GB1542138A
GB1542138A GB7610878A GB1087876A GB1542138A GB 1542138 A GB1542138 A GB 1542138A GB 7610878 A GB7610878 A GB 7610878A GB 1087876 A GB1087876 A GB 1087876A GB 1542138 A GB1542138 A GB 1542138A
Authority
GB
United Kingdom
Prior art keywords
channel selectors
selectors
channel
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
GB7610878A
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 JP50034158A external-priority patent/JPS51109703A/ja
Priority claimed from JP50056941A external-priority patent/JPS51132703A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1542138A publication Critical patent/GB1542138A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
GB7610878A 1975-03-20 1976-03-18 Channel selectors Expired GB1542138A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP50034158A JPS51109703A (en) 1975-03-20 1975-03-20 Denshichuunasenkyokusochi
JP50056941A JPS51132703A (en) 1975-05-13 1975-05-13 Electronic channel selection device

Publications (1)

Publication Number Publication Date
GB1542138A true GB1542138A (en) 1979-03-14

Family

ID=26372942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7610878A Expired GB1542138A (en) 1975-03-20 1976-03-18 Channel selectors

Country Status (7)

Country Link
US (1) US4020420A (enExample)
CA (1) CA1061487A (enExample)
DE (1) DE2611808A1 (enExample)
FR (1) FR2305062A1 (enExample)
GB (1) GB1542138A (enExample)
IT (1) IT1058621B (enExample)
NL (1) NL174205C (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5456701A (en) * 1977-10-14 1979-05-08 Sanyo Electric Co Ltd Preset receiving device
US20050052579A1 (en) * 2003-08-18 2005-03-10 Alps Electric Co., Ltd. Television tuner having circuit for attenuating FM broadcasting band
US20230077359A1 (en) * 2021-09-16 2023-03-16 Innolux Corporation Electronic device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467870A (en) * 1965-02-16 1969-09-16 Trio Corp Automatic frequency sweep apparatus
DE1538337B2 (de) * 1966-05-06 1971-03-18 Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart Einrichtung zur ferngesteuerten frequenzumschaltung
DE2139173A1 (de) * 1971-07-30 1973-02-08 Loewe Opta Gmbh Schaltungsanordnung zur automatischen sendersuche bei geraeten der nachrichtentechnik mit kapazitaetsdioden-abstimmung
US3644853A (en) * 1970-11-23 1972-02-22 Zenith Radio Corp Voltage-controlled signal-seeking tuning system
US3691298A (en) * 1970-12-03 1972-09-12 Carl R Pittman Touch tuning and control circuits
US3737787A (en) * 1971-06-29 1973-06-05 Gen Electric Electronic signal seeking system with rapid scan
US3766483A (en) * 1971-06-29 1973-10-16 Gen Electric Signal seeking tuner control system
GB1400583A (en) * 1971-09-14 1975-07-16 Matsushita Electric Industrial Co Ltd Tuning system
GB1409798A (en) * 1971-09-25 1975-10-15 Matsushita Electric Industrial Co Ltd Frequency control arrangements

Also Published As

Publication number Publication date
NL7602799A (nl) 1976-09-22
CA1061487A (en) 1979-08-28
NL174205B (nl) 1983-12-01
FR2305062A1 (fr) 1976-10-15
IT1058621B (it) 1982-05-10
FR2305062B1 (enExample) 1978-04-14
DE2611808A1 (de) 1976-09-30
US4020420A (en) 1977-04-26
NL174205C (nl) 1984-05-01

Similar Documents

Publication Publication Date Title
JPS5251811A (en) Continuous channel multiplexer
IL48649A0 (en) Split cable-sleeves
YU87876A (en) Anti - door - straining means
GB1539261A (en) Cover-sealing arrangement
GB1555980A (en) Channel processor
CS189785B2 (en) Rhodenticide means
GB1557722A (en) Slides
GB1555507A (en) Slides
JPS5242521A (en) Improved 33trifluoromethyll44aryl55aminoopyrazole
GB1542138A (en) Channel selectors
AU1253776A (en) Cable channel
GB1555019A (en) Bonnet-pivoting means
PT64872B (en) Improved electropaints
BG27530A3 (en) Incecticide means
JPS5220901A (en) Improved aluminothermy
JPS5195026A (en) pp fuenirenjiaminno seizoho
JPS5269502A (en) Channel selector
JPS51141362A (en) Guide elements
JPS5213483A (en) Antioxidants
JPS51104026A (en) Arufua pp kurorufuenokishiisorakusanechiruganjukokeizaino seizoho
JPS51101928A (en) pp fuenirenjiaminnoseizoho
JPS5180614A (en) Fujusenko nyoru do namaribunrihoho
PL183721A1 (en) Urzadzenie do zmechanizowanego stawiania obudowy chodnikowej
JPS5186045A (en) Do aruminiumuno masatsuatsusetsusetsuzokuho
JPS5269501A (en) Channel selector

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930318