GB1201385A - Tuner for television receiver - Google Patents

Tuner for television receiver

Info

Publication number
GB1201385A
GB1201385A GB38893/67A GB3889367A GB1201385A GB 1201385 A GB1201385 A GB 1201385A GB 38893/67 A GB38893/67 A GB 38893/67A GB 3889367 A GB3889367 A GB 3889367A GB 1201385 A GB1201385 A GB 1201385A
Authority
GB
United Kingdom
Prior art keywords
tuner
television receiver
television
receiver
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
GB38893/67A
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 GB1201385A publication Critical patent/GB1201385A/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
    • 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
    • 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
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
GB38893/67A 1966-08-30 1967-08-23 Tuner for television receiver Expired GB1201385A (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP5775066 1966-08-30
JP5842666 1966-09-02
JP24767 1966-12-28
JP428467 1967-01-19
JP552767 1967-01-26
JP756267 1967-01-27
JP1150767 1967-02-10
JP1353067 1967-03-01
JP2412867 1967-04-14
JP3322267 1967-05-23

Publications (1)

Publication Number Publication Date
GB1201385A true GB1201385A (en) 1970-08-05

Family

ID=27579436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38893/67A Expired GB1201385A (en) 1966-08-30 1967-08-23 Tuner for television receiver

Country Status (4)

Country Link
US (1) US3544903A (en)
DE (2) DE1791255C3 (en)
GB (1) GB1201385A (en)
NL (1) NL151864B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270218A (en) * 1980-02-07 1981-05-26 Zenith Radio Corporation Continuous tune all-channel selector
WO2018197849A1 (en) * 2017-04-28 2018-11-01 Sureflap Ltd Pet monitoring device

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662271A (en) * 1969-07-07 1972-05-09 Standard Kollsman Ind Inc Solid state television tuner
US3643168A (en) * 1969-07-07 1972-02-15 Standard Kallsman Ind Inc Solid-state tuned uhf television tuner
US3735268A (en) * 1970-09-15 1973-05-22 Bendix Corp Duplex tuning for radio receivers
US3673523A (en) * 1970-10-05 1972-06-27 Electrohome Ltd Signal translating networks and control circuits for the tuners of signal receivers
US3697885A (en) * 1970-12-04 1972-10-10 Rca Corp Automatic frequency control circuits
CA964735A (en) * 1971-12-16 1975-03-18 Shinichi Makino Channel selecting apparatus
US4002986A (en) * 1975-03-27 1977-01-11 Zenith Radio Corporation Television receiver with tuner capable of receiving air and CATV signals
EP1438841A2 (en) * 2001-10-16 2004-07-21 Rfstream Corporation Monolithic integrated circuit for a television receiver
US7199844B2 (en) * 2002-05-28 2007-04-03 Rfstream Corporation Quadratic nyquist slope filter
EP1514346A2 (en) * 2002-05-29 2005-03-16 Ukom, Inc. Image rejection quadratic filter
EP1532736A1 (en) * 2002-05-29 2005-05-25 Ukom, Inc. Methods and apparatus for tuning using successive aproximation
EP1514345A2 (en) * 2002-06-05 2005-03-16 Rfstream Corporation Quadratic video demodulation with baseband nyquist filter
US6882245B2 (en) * 2002-06-05 2005-04-19 Rf Stream Corporation Frequency discrete LC filter bank
US6940365B2 (en) * 2003-07-18 2005-09-06 Rfstream Corporation Methods and apparatus for an improved discrete LC filter
WO2006099161A2 (en) 2005-03-11 2006-09-21 Rfstream Corporation A mosfet temperature compensation current source
JP2008533840A (en) * 2005-03-11 2008-08-21 株式会社ＲｆＳｔｒｅａｍ Radio frequency inductive capacitive filter circuit topology

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601384A (en) * 1948-11-03 1952-06-24 Rca Corp Electronic signal seeking receiver
US2745961A (en) * 1951-11-03 1956-05-15 Rca Corp Multiband u. h. f. oscillators
US3010015A (en) * 1957-12-31 1961-11-21 Motorola Inc Remote electrical tuner for radio apparatus
US3130264A (en) * 1962-02-23 1964-04-21 Rca Corp Tuning system
US3264566A (en) * 1962-07-13 1966-08-02 Gen Instrument Corp Electronic switching of tuned circuits
US3390228A (en) * 1963-08-22 1968-06-25 Zenith Radio Corp Television receiver with automatic tuning responsive to detected sound carrier
US3354397A (en) * 1964-02-12 1967-11-21 Standard Kollsman Ind Inc Voltage variable diode capacitance tunable circuit for television apparatus
US3309613A (en) * 1966-07-29 1967-03-14 Zenith Radio Corp Continuously adjustable vhf/uhf television tuner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270218A (en) * 1980-02-07 1981-05-26 Zenith Radio Corporation Continuous tune all-channel selector
WO2018197849A1 (en) * 2017-04-28 2018-11-01 Sureflap Ltd Pet monitoring device
US11464205B2 (en) 2017-04-28 2022-10-11 Sureflap Ltd. Pet monitoring device

Also Published As

Publication number Publication date
NL151864B (en) 1976-12-15
US3544903A (en) 1970-12-01
DE1791255C3 (en) 1974-07-04
DE1791256C3 (en) 1975-03-06
DE1791256B2 (en) 1974-07-25
DE1791255B2 (en) 1973-12-06
DE1791256A1 (en) 1972-10-19
DE1791255A1 (en) 1972-10-26
NL6711910A (en) 1968-03-01

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Legal Events

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