IT1091632B - Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici - Google Patents

Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici

Info

Publication number
IT1091632B
IT1091632B IT69950/77A IT6995077A IT1091632B IT 1091632 B IT1091632 B IT 1091632B IT 69950/77 A IT69950/77 A IT 69950/77A IT 6995077 A IT6995077 A IT 6995077A IT 1091632 B IT1091632 B IT 1091632B
Authority
IT
Italy
Prior art keywords
circuitary
tune
arrangement
signal
radioelectric signals
Prior art date
Application number
IT69950/77A
Other languages
English (en)
Original Assignee
Indesit
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 Indesit filed Critical Indesit
Priority to IT69950/77A priority Critical patent/IT1091632B/it
Priority to GB4844/81A priority patent/GB1605100A/en
Priority to GB25777/78A priority patent/GB1605099A/en
Priority to US05/971,073 priority patent/US4373208A/en
Priority to FR7836185A priority patent/FR2423092A1/fr
Priority to DE2858826A priority patent/DE2858826C2/de
Priority to DE19782856042 priority patent/DE2856042A1/de
Application granted granted Critical
Publication of IT1091632B publication Critical patent/IT1091632B/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
    • H03J5/0272—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 the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
    • H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a loop
    • 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
    • H03J5/0272—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 the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H03J5/0281—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 the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
IT69950/77A 1977-12-30 1977-12-30 Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici IT1091632B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT69950/77A IT1091632B (it) 1977-12-30 1977-12-30 Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici
GB4844/81A GB1605100A (en) 1977-12-30 1978-05-31 Circuit arrangement for tuning into one of a number of radio electric signals
GB25777/78A GB1605099A (en) 1977-12-30 1978-05-31 Circuit arrangement for tuning into one of a number of radioelectric signals
US05/971,073 US4373208A (en) 1977-12-30 1978-12-19 Circuit arrangement for tuning into one of a number of radioelectric signals
FR7836185A FR2423092A1 (fr) 1977-12-30 1978-12-22 Circuit d'accord automatique pour un recepteur de television
DE2858826A DE2858826C2 (de) 1977-12-30 1978-12-23 Schaltungsanordnung zum Abstimmen eines Fernsehsignalempfängers
DE19782856042 DE2856042A1 (de) 1977-12-30 1978-12-23 Schaltungsanordnung zur abstimmung eines empfaengers fuer funksignale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69950/77A IT1091632B (it) 1977-12-30 1977-12-30 Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici

Publications (1)

Publication Number Publication Date
IT1091632B true IT1091632B (it) 1985-07-06

Family

ID=11313150

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69950/77A IT1091632B (it) 1977-12-30 1977-12-30 Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici

Country Status (5)

Country Link
US (1) US4373208A (it)
DE (1) DE2856042A1 (it)
FR (1) FR2423092A1 (it)
GB (2) GB1605099A (it)
IT (1) IT1091632B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143691A (en) * 1983-07-22 1985-02-13 Plessey Co Plc A double superhet tuner
DE3524455A1 (de) * 1985-07-09 1987-01-15 Blaupunkt Werke Gmbh System zur speicherung von einstellwerten bei nachrichtentechnischen geraeten
US4763195A (en) * 1987-05-08 1988-08-09 Rca Licensing Corporation Television tuning system with provisions for quickly locating active cable channels
US20030058973A1 (en) * 2001-06-01 2003-03-27 Tsecouras Michael J. Adaptive pulse frame rate frequency control for digital amplifier systems
JP4320740B2 (ja) * 2006-04-17 2009-08-26 船井電機株式会社 テレビジョン放送受信装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS555729B2 (it) * 1971-11-29 1980-02-08
US3841394A (en) * 1973-08-02 1974-10-15 Tempmaster Corp Minimum air volume control device
US4013957A (en) * 1975-04-26 1977-03-22 Kanda Tsushin Kogyo Co., Ltd. Channel-selecting apparatus for a multichannel transceiver
US3962644A (en) * 1975-05-30 1976-06-08 Tennelec, Inc. Crystalless scanning radio receiver controlled by processing means
US4078613A (en) * 1975-08-07 1978-03-14 World Energy Systems Downhole recovery system
IT1047373B (it) 1975-10-16 1980-09-10 Indesit Disposizione per selezionare una frequenza ricevibile in un ricevitore di segnali
IT1051262B (it) 1975-11-11 1981-04-21 Indesit Sintonizzatore a sintesi di frequenza
IT1050947B (it) * 1975-11-17 1981-03-20 Indesit Circuito di selezione di segnali
US4024476A (en) * 1976-02-02 1977-05-17 Rca Corporation Programmable frequency divider for a television receiver frequency synthesizer
US4122395A (en) * 1976-05-10 1978-10-24 Draco Laboratories, Inc. Radio control circuit with microprocessor
US4128849A (en) * 1976-05-24 1978-12-05 Admiral Corporation Selectively coupled synthesizer for tuner of TV receiver
JPS5350908A (en) * 1976-10-20 1978-05-09 Sanyo Electric Co Ltd Broadcast receiving memory unit
DE2648882A1 (de) 1976-10-28 1978-05-03 Licentia Gmbh Elektronisches kanalwahlsystem, insbesondere fuer fernsehgeraete
US4161708A (en) * 1978-02-01 1979-07-17 General Instrument Corporation Electronic tuning system with digital band selection

Also Published As

Publication number Publication date
GB1605099A (en) 1981-12-16
GB1605100A (en) 1981-12-16
FR2423092B1 (it) 1984-03-16
DE2856042A1 (de) 1979-07-12
US4373208A (en) 1983-02-08
FR2423092A1 (fr) 1979-11-09

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961230