IT1041164B - Perfezionamento nei ricevitori televisivi con ricerca a se - Google Patents

Perfezionamento nei ricevitori televisivi con ricerca a se

Info

Publication number
IT1041164B
IT1041164B IT50851/75A IT5085175A IT1041164B IT 1041164 B IT1041164 B IT 1041164B IT 50851/75 A IT50851/75 A IT 50851/75A IT 5085175 A IT5085175 A IT 5085175A IT 1041164 B IT1041164 B IT 1041164B
Authority
IT
Italy
Prior art keywords
search
improvement
television receivers
receivers
television
Prior art date
Application number
IT50851/75A
Other languages
English (en)
Inventor
J Schurmann
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of IT1041164B publication Critical patent/IT1041164B/it

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
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • 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
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
IT50851/75A 1974-08-07 1975-08-06 Perfezionamento nei ricevitori televisivi con ricerca a se IT1041164B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2437974A DE2437974C3 (de) 1974-08-07 1974-08-07 Kanalsuch- und Kanalwählanordnung

Publications (1)

Publication Number Publication Date
IT1041164B true IT1041164B (it) 1980-01-10

Family

ID=5922636

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50851/75A IT1041164B (it) 1974-08-07 1975-08-06 Perfezionamento nei ricevitori televisivi con ricerca a se

Country Status (6)

Country Link
US (1) US3988681A (it)
JP (1) JPS5934010B2 (it)
DE (1) DE2437974C3 (it)
FR (1) FR2281674A1 (it)
IT (1) IT1041164B (it)
NL (1) NL7509426A (it)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826692B2 (ja) * 1975-11-20 1983-06-04 ソニー株式会社 センキヨクソウチ
DE2556486C3 (de) * 1975-12-16 1981-03-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Abstimmschaltung für Hochfrequenzempfangsgeräte
DE2557856C3 (de) * 1975-12-22 1980-11-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Abstimmschaltung für Hochfrequenzempfangsgeräte
JPS5946129B2 (ja) * 1976-04-05 1984-11-10 ソニー株式会社 選局装置
US4207529A (en) * 1976-04-08 1980-06-10 Fujitsu Ten Limited Radio receiver
US4155043A (en) * 1976-04-28 1979-05-15 Matsushita Electric Industrial Co. Ltd. Channel selection apparatus including a scanning system
US4123716A (en) * 1976-08-12 1978-10-31 The Magnavox Company Automatic frequency control for digital tuning systems
JPS5380108A (en) * 1976-12-24 1978-07-15 Fujitsu Ten Ltd Automatic channel selecting receiver
US4156198A (en) * 1976-12-27 1979-05-22 The Magnavox Company Keyboard channel selection for television receivers
US4065720A (en) * 1977-03-18 1977-12-27 General Motors Corporation Electronic channel selector
US4236182A (en) * 1977-04-30 1980-11-25 Sharp Kabushiki Kaisha Automatic pre-programming system for TV receivers
JPS5944805B2 (ja) * 1977-08-26 1984-11-01 株式会社日立製作所 自動選局装置
JPS6011852B2 (ja) * 1977-09-28 1985-03-28 ソニー株式会社 受信機
US4270219A (en) * 1977-10-14 1981-05-26 Hitachi, Ltd. Channel selection apparatus tunable to destined frequency in short time
US4270215A (en) * 1978-05-10 1981-05-26 Hitachi, Ltd. Channel indicator
JPS5539440A (en) * 1978-09-13 1980-03-19 Pioneer Electronic Corp Tuning system of terminal unit for catv system
DE2843214C2 (de) * 1978-10-04 1980-10-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digitales Abstimmsystem für ein Rundfunk-Empfangsgerät
JPS5835639Y2 (ja) * 1979-04-23 1983-08-11 石川島播磨重工業株式会社 ハ−スロ−ル
US4291414A (en) * 1979-05-02 1981-09-22 Nippon Gakki Seizo Kabushiki Kaisha Radio receiver operable in station search mode or station select mode
DE2935548C2 (de) * 1979-09-03 1989-07-20 Saba Gmbh, 7730 Villingen-Schwenningen Schaltungsanordnung zur Einstellung eines Empfängers auf vorgegebene Senderfrequenzen mittels eines durchstimmbaren Oszillators
DE2945331C2 (de) * 1979-11-09 1984-05-30 Nixdorf Computer Ag, 4790 Paderborn Vorrichtung in einer Signal-oder Datenverarbeitungsanlage zur Einstellung einer Signalverarbeitungsschaltung
JPS6034866B2 (ja) * 1980-03-25 1985-08-10 株式会社日立製作所 選局装置
US4398303A (en) * 1981-11-30 1983-08-09 Rca Corporation Signal-seeking tuning system with automatic bandswitching for a television receiver
US4661995A (en) * 1985-02-21 1987-04-28 Anritsu Electric Co., Limited Multi-superheterodyne receiver
JPS638403U (it) * 1986-07-03 1988-01-20
JP4690019B2 (ja) * 2004-11-18 2011-06-01 リーダー電子株式会社 チャンネル検出装置およびこれを備えたチューナ検査装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825804A (en) * 1954-10-29 1958-03-04 Sylvania Electric Prod Local reception selector for signal seeking receiver
DE1916834A1 (de) * 1969-04-02 1970-10-15 Blaupunkt Werke Gmbh Elektronische Sendersuchlaufautomatik fuer einen Rundfunkempfaenger
US3794925A (en) * 1972-06-27 1974-02-26 Gen Res Electronics Inc Frequency-skipping system for a signal-seeking receiver
US3931579A (en) * 1974-04-01 1976-01-06 Zenith Radio Corporation Digital signal seeking tuning system
US3919646A (en) * 1974-05-06 1975-11-11 Hy Gain Electronics Corp Scanning receiver

Also Published As

Publication number Publication date
FR2281674B3 (it) 1978-03-24
NL7509426A (nl) 1976-02-10
DE2437974B2 (de) 1978-08-31
FR2281674A1 (fr) 1976-03-05
JPS5140803A (it) 1976-04-06
DE2437974A1 (de) 1976-02-26
DE2437974C3 (de) 1979-04-26
JPS5934010B2 (ja) 1984-08-20
US3988681A (en) 1976-10-26

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