ATE149764T1 - Funkrufempfänger mit synthesizer mit veränderbaren eigenschaften - Google Patents

Funkrufempfänger mit synthesizer mit veränderbaren eigenschaften

Info

Publication number
ATE149764T1
ATE149764T1 AT90911065T AT90911065T ATE149764T1 AT E149764 T1 ATE149764 T1 AT E149764T1 AT 90911065 T AT90911065 T AT 90911065T AT 90911065 T AT90911065 T AT 90911065T AT E149764 T1 ATE149764 T1 AT E149764T1
Authority
AT
Austria
Prior art keywords
synthesizer
time
receive frequency
frequency
call receiver
Prior art date
Application number
AT90911065T
Other languages
English (en)
Inventor
Omid Tahernia
Walter Lee Davis
Barry Wayne Herold
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE149764T1 publication Critical patent/ATE149764T1/de

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
AT90911065T 1989-08-02 1990-07-09 Funkrufempfänger mit synthesizer mit veränderbaren eigenschaften ATE149764T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38845989A 1989-08-02 1989-08-02

Publications (1)

Publication Number Publication Date
ATE149764T1 true ATE149764T1 (de) 1997-03-15

Family

ID=23534199

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90911065T ATE149764T1 (de) 1989-08-02 1990-07-09 Funkrufempfänger mit synthesizer mit veränderbaren eigenschaften

Country Status (8)

Country Link
EP (1) EP0487548B1 (de)
JP (1) JP2557284B2 (de)
KR (1) KR950013308B1 (de)
AT (1) ATE149764T1 (de)
CA (1) CA2057013C (de)
DE (1) DE69030091T2 (de)
SG (1) SG44534A1 (de)
WO (1) WO1991002418A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2726724B1 (fr) * 1994-11-07 1997-01-10 Motorola Inc Dispositif et procede pour le fonctionnement d'un synthetiseur en frequence de boucle a blocage de phase sensible a l'espacement de canal de frequence radio
FI950106L (fi) * 1995-01-10 1996-07-11 Nokia Mobile Phones Ltd Menetelmä ja kytkentä häiriöiden suodattamiseksi radiolaitteen vastaanottimessa
GB2336731A (en) * 1998-04-22 1999-10-27 Thomson Multimedia Sa A video tuner in which data representing a PLL division is used to control other circuit parameters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828968B2 (ja) * 1977-08-31 1983-06-20 ソニー株式会社 Ｐｌｌ方式周波数シンセサイザチュ−ナ
US4259740A (en) * 1979-03-07 1981-03-31 Harris Corporation Sequential detection system

Also Published As

Publication number Publication date
DE69030091T2 (de) 1997-09-18
DE69030091D1 (de) 1997-04-10
CA2057013A1 (en) 1991-02-03
EP0487548B1 (de) 1997-03-05
JPH04507330A (ja) 1992-12-17
JP2557284B2 (ja) 1996-11-27
EP0487548A4 (en) 1992-12-16
EP0487548A1 (de) 1992-06-03
KR950013308B1 (ko) 1995-11-02
SG44534A1 (en) 1997-12-19
WO1991002418A1 (en) 1991-02-21
CA2057013C (en) 1995-01-17

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties