IT7869430A0 - Ricevitore avente un circuito sintetizzatore di frequenza - Google Patents

Ricevitore avente un circuito sintetizzatore di frequenza

Info

Publication number
IT7869430A0
IT7869430A0 IT7869430A IT6943078A IT7869430A0 IT 7869430 A0 IT7869430 A0 IT 7869430A0 IT 7869430 A IT7869430 A IT 7869430A IT 6943078 A IT6943078 A IT 6943078A IT 7869430 A0 IT7869430 A0 IT 7869430A0
Authority
IT
Italy
Prior art keywords
receiver
frequency synthesizer
synthesizer circuit
circuit
frequency
Prior art date
Application number
IT7869430A
Other languages
English (en)
Other versions
IT1108260B (it
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of IT7869430A0 publication Critical patent/IT7869430A0/it
Application granted granted Critical
Publication of IT1108260B publication Critical patent/IT1108260B/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
IT69430/78A 1977-10-26 1978-10-23 Ricevitore avente un circuito sintetizzatore di frequenza IT1108260B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7711714,A NL179435C (nl) 1977-10-26 1977-10-26 Ontvanger met een frequentiesynthese-schakeling.

Publications (2)

Publication Number Publication Date
IT7869430A0 true IT7869430A0 (it) 1978-10-23
IT1108260B IT1108260B (it) 1985-12-02

Family

ID=19829407

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69430/78A IT1108260B (it) 1977-10-26 1978-10-23 Ricevitore avente un circuito sintetizzatore di frequenza

Country Status (17)

Country Link
US (1) US4271530A (it)
JP (1) JPS5471515A (it)
AT (1) AT377135B (it)
AU (1) AU519689B2 (it)
BR (1) BR7806975A (it)
CA (1) CA1149024A (it)
DE (1) DE2845483C2 (it)
DK (1) DK154596C (it)
ES (1) ES474451A1 (it)
FR (1) FR2407614A1 (it)
GB (1) GB2007049B (it)
HK (1) HK48283A (it)
IT (1) IT1108260B (it)
MX (1) MX146152A (it)
NL (1) NL179435C (it)
SE (2) SE430844B (it)
SG (1) SG59582G (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933416A1 (de) * 1979-08-17 1981-03-26 Siemens AG, 1000 Berlin und 8000 München Verfahren zur automatischen zf-korrektur von rundfunkgeraeten mit digital einstellbarer empfangsrequenz
US4344187A (en) * 1979-10-18 1982-08-10 Nippon Gakki Seizo Kabushiki Kaisha Radio receiver with system for maintaining optimum tuning
FR2490428B1 (fr) * 1980-09-16 1986-04-18 Thomson Csf Dispositif de recherche de la frequence d'accord d'un recepteur radioelectrique a modulation de frequence
DE3111933A1 (de) * 1981-03-26 1982-10-07 Blaupunkt-Werke Gmbh, 3200 Hildesheim Ueberlagerungsempfaenger mit einem digitalen abstimmsystem
JPS58223913A (ja) * 1982-06-21 1983-12-26 Yaesu Musen Co Ltd 無線通信機の同調方式
JPS58225717A (ja) * 1982-06-24 1983-12-27 Yaesu Musen Co Ltd 無線通信機の同調方式
JPS592419A (ja) * 1982-06-28 1984-01-09 Yaesu Musen Co Ltd 無線通信機の同調方式
US4727591A (en) * 1986-09-04 1988-02-23 Arvin Industries, Inc. Microprocessor controlled tuning system
GB2220317B (en) * 1988-05-28 1992-07-22 Motorola Israel Ltd Automatically self-calibrating oscillators in heterodyned radio receivers
JPH0572309U (ja) * 1992-03-17 1993-10-05 三井精機工業株式会社 主軸テーパ穴の硬化処理構造
JPH0574716U (ja) * 1992-03-17 1993-10-12 三井精機工業株式会社 主軸テーパ穴の硬化構造
US5564091A (en) * 1995-03-29 1996-10-08 Motorola, Inc. Method and apparatus for operating an automatic frequency control in a radio
US5983077A (en) * 1997-07-31 1999-11-09 Ericsson Inc. Systems and methods for automatic deviation setting and control in radio transmitters
GB2335807B (en) 1998-03-24 2001-12-12 Ericsson Telefon Ab L M Demodulator circuits
GB2344710B (en) * 1998-12-09 2002-05-15 Mitel Semiconductor Ltd Improvements in or relating to demodulator alignment correction in tuners
DE102004054667A1 (de) * 2004-11-12 2006-05-18 Hella Kgaa Hueck & Co. Verfahren und Vorrichtung zum Stabilisieren einer Frequenz

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR957645A (it) * 1942-11-03 1950-02-23
US2856519A (en) * 1952-10-11 1958-10-14 Gen Precision Lab Inc Automatic signal frequency tracker, with search and hold-during-fade provisions
DE2233724C3 (de) * 1972-07-08 1975-11-27 Loewe Opta Gmbh, 1000 Berlin Schaltungsanordnung zum Einstellen der Frequenz in spannungsabhängigen Oszillatoren
JPS51142201A (en) * 1975-06-02 1976-12-07 Onkyo Corp Automatic frequency control circuit
JPS5421947Y2 (it) * 1975-11-13 1979-08-02
US4038689A (en) * 1976-06-14 1977-07-26 Matsushita Electric Corporation Of America Frequency synthesizer tuning system with manual fine tuning control

Also Published As

Publication number Publication date
NL179435C (nl) 1986-09-01
JPS5471515A (en) 1979-06-08
DE2845483A1 (de) 1979-05-03
GB2007049A (en) 1979-05-10
US4271530A (en) 1981-06-02
GB2007049B (en) 1982-09-29
AU4097278A (en) 1980-05-01
SG59582G (en) 1983-09-02
DK154596C (da) 1989-04-17
ES474451A1 (es) 1979-04-16
JPS5620738B2 (it) 1981-05-15
NL7711714A (nl) 1979-05-01
IT1108260B (it) 1985-12-02
AU519689B2 (en) 1981-12-17
BR7806975A (pt) 1979-05-15
FR2407614B1 (it) 1984-10-19
DK154596B (da) 1988-11-28
HK48283A (en) 1983-11-04
DK470378A (da) 1979-04-27
AT377135B (de) 1985-02-11
DE2845483C2 (de) 1982-08-12
SE7810993L (sv) 1979-04-27
SE430844B (sv) 1983-12-12
ATA763978A (de) 1984-06-15
NL179435B (nl) 1986-04-01
FR2407614A1 (fr) 1979-05-25
CA1149024A (en) 1983-06-28
MX146152A (es) 1982-05-19

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