IT1051262B - Sintonizzatore a sintesi di frequenza - Google Patents

Sintonizzatore a sintesi di frequenza

Info

Publication number
IT1051262B
IT1051262B IT69771/75A IT6977175A IT1051262B IT 1051262 B IT1051262 B IT 1051262B IT 69771/75 A IT69771/75 A IT 69771/75A IT 6977175 A IT6977175 A IT 6977175A IT 1051262 B IT1051262 B IT 1051262B
Authority
IT
Italy
Prior art keywords
frequency synthesis
tuner
synthesis tuner
frequency
synthesis
Prior art date
Application number
IT69771/75A
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 IT69771/75A priority Critical patent/IT1051262B/it
Priority to GB44395/76A priority patent/GB1550413A/en
Priority to US05/735,564 priority patent/US4283791A/en
Priority to NLAANVRAGE7612254,A priority patent/NL189064C/xx
Priority to DE2661116A priority patent/DE2661116C2/de
Priority to DE19762651030 priority patent/DE2651030A1/de
Priority to FR7634116A priority patent/FR2331916A1/fr
Application granted granted Critical
Publication of IT1051262B publication Critical patent/IT1051262B/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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
IT69771/75A 1975-11-11 1975-11-11 Sintonizzatore a sintesi di frequenza IT1051262B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT69771/75A IT1051262B (it) 1975-11-11 1975-11-11 Sintonizzatore a sintesi di frequenza
GB44395/76A GB1550413A (en) 1975-11-11 1976-10-26 Frequency synthesiser particularly for the tuning of receiving sets
US05/735,564 US4283791A (en) 1975-11-11 1976-10-26 Circuit arrangement with frequency synthesis for the tuning of receiving sets
NLAANVRAGE7612254,A NL189064C (nl) 1975-11-11 1976-11-04 Schakelinrichting voor het afstemmen van een televisieontvanger.
DE2661116A DE2661116C2 (de) 1975-11-11 1976-11-09 Verfahren zum Abstimmen eines Empfängertuners auf ein genormtes Fernsehsignal
DE19762651030 DE2651030A1 (de) 1975-11-11 1976-11-09 Abstimmschaltung fuer ein empfangsgeraet
FR7634116A FR2331916A1 (fr) 1975-11-11 1976-11-12 Agencement de circuits a synthese de frequence pour l'accord de postes recepteurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69771/75A IT1051262B (it) 1975-11-11 1975-11-11 Sintonizzatore a sintesi di frequenza

Publications (1)

Publication Number Publication Date
IT1051262B true IT1051262B (it) 1981-04-21

Family

ID=11312799

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69771/75A IT1051262B (it) 1975-11-11 1975-11-11 Sintonizzatore a sintesi di frequenza

Country Status (6)

Country Link
US (1) US4283791A (it)
DE (2) DE2661116C2 (it)
FR (1) FR2331916A1 (it)
GB (1) GB1550413A (it)
IT (1) IT1051262B (it)
NL (1) NL189064C (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53131702A (en) * 1977-04-21 1978-11-16 Sony Corp Electronic tuning device
DE2858826C2 (de) * 1977-12-30 1996-09-12 Sisvel Spa Schaltungsanordnung zum Abstimmen eines Fernsehsignalempfängers
IT1091632B (it) 1977-12-30 1985-07-06 Indesit Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici
JPS598966B2 (ja) * 1979-04-10 1984-02-28 株式会社東芝 テレビジヨン受像機の制御装置
DE3634246A1 (de) * 1986-10-08 1988-04-21 Grundig Emv Abstimmsystem, insbesondere fuer videogeneratoren und fernsehempfaenger
DE3830921A1 (de) * 1988-09-12 1990-03-22 Grundig Emv Anordnung zur anpassung eines empfangsgeraetes an verschiedene kanalraster

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665223A (en) * 1969-11-28 1972-05-23 Armor Elevator Co Inc Multiple potentiometer timer for elevator controls
US3665316A (en) * 1970-07-06 1972-05-23 Jerrold Electronics Corp Maximum channel utilization using single ended amplifiers in a frequency band greater than one octave
US3665323A (en) 1971-05-10 1972-05-23 Collins Radio Co Proportional digital control for radio frequency synthesizers
US3803494A (en) * 1972-04-07 1974-04-09 Bendix Corp Pulse tuning control system for radio receivers
US3898566A (en) * 1972-10-02 1975-08-05 Phasecom Corp Method and apparatus for reducing distortion in multicarrier communication systems
JPS5325721B2 (it) * 1973-11-07 1978-07-28
JPS5092603U (it) * 1973-12-27 1975-08-05
US3961261A (en) * 1974-03-14 1976-06-01 Tennelec, Inc. Crystalless scanning radio receiver
US3883807A (en) * 1974-05-30 1975-05-13 Motorola Inc Tuning control system
JPS5823972B2 (ja) * 1975-05-30 1983-05-18 三洋電機株式会社 多バンドデイジタルシンセサイザ受信機
JPS5267201A (en) * 1975-12-01 1977-06-03 Matsushita Electric Ind Co Ltd Station selecting unit

Also Published As

Publication number Publication date
FR2331916B1 (it) 1982-09-17
DE2651030A1 (de) 1977-05-12
GB1550413A (en) 1979-08-15
FR2331916A1 (fr) 1977-06-10
NL7612254A (nl) 1977-05-13
DE2661116C2 (de) 1993-10-14
NL189064C (nl) 1992-12-16
NL189064B (nl) 1992-07-16
US4283791A (en) 1981-08-11

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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: 19941128