ATE179037T1 - Verfahren zur digitalen frequenzverriegelung eines funksendeempfängers mit dem empfangssignal - Google Patents

Verfahren zur digitalen frequenzverriegelung eines funksendeempfängers mit dem empfangssignal

Info

Publication number
ATE179037T1
ATE179037T1 AT91300470T AT91300470T ATE179037T1 AT E179037 T1 ATE179037 T1 AT E179037T1 AT 91300470 T AT91300470 T AT 91300470T AT 91300470 T AT91300470 T AT 91300470T AT E179037 T1 ATE179037 T1 AT E179037T1
Authority
AT
Austria
Prior art keywords
signal
reference oscillator
frequency
divider
base station
Prior art date
Application number
AT91300470T
Other languages
English (en)
Inventor
Paul J Moller
David K Ford
Douglas W Main
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 ATE179037T1 publication Critical patent/ATE179037T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels
    • 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 Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Transmitters (AREA)
  • Radio Relay Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Analogue/Digital Conversion (AREA)
  • Electrophonic Musical Instruments (AREA)
AT91300470T 1990-01-22 1991-01-22 Verfahren zur digitalen frequenzverriegelung eines funksendeempfängers mit dem empfangssignal ATE179037T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46804090A 1990-01-22 1990-01-22

Publications (1)

Publication Number Publication Date
ATE179037T1 true ATE179037T1 (de) 1999-04-15

Family

ID=23858200

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91300470T ATE179037T1 (de) 1990-01-22 1991-01-22 Verfahren zur digitalen frequenzverriegelung eines funksendeempfängers mit dem empfangssignal

Country Status (7)

Country Link
EP (1) EP0439326B1 (de)
AT (1) ATE179037T1 (de)
CA (1) CA2034088C (de)
DE (1) DE69131110T2 (de)
FI (1) FI103234B (de)
NO (1) NO178249C (de)
SG (1) SG46267A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9305597A (pt) * 1992-08-06 1996-01-02 Motorola Inc Rádio, estágio de frequência intermediária de receptor de radiofrequência, rádio tendo elo de fase síncrona e processo de operaçÃo de rádio
US5542095A (en) * 1993-08-24 1996-07-30 Pacific Communication Sciences Frequency Reference Compensation
JP2929965B2 (ja) * 1995-03-31 1999-08-03 日本電気株式会社 無線通信端局

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498191A (en) * 1983-06-06 1985-02-05 General Electric Company Digital automatic frequency control with tracking
JPS635669A (ja) * 1986-06-25 1988-01-11 Mitsubishi Electric Corp 選局装置
US4703520A (en) * 1986-10-31 1987-10-27 Motorola, Inc. Radio transceiver having an adaptive reference oscillator

Also Published As

Publication number Publication date
FI910267A0 (fi) 1991-01-18
EP0439326A2 (de) 1991-07-31
FI910267A7 (fi) 1991-07-23
FI103234B1 (fi) 1999-05-14
FI103234B (fi) 1999-05-14
SG46267A1 (en) 1998-02-20
NO178249B (no) 1995-11-06
NO178249C (no) 1996-02-14
NO910260D0 (no) 1991-01-22
EP0439326A3 (en) 1992-07-22
DE69131110T2 (de) 1999-11-11
DE69131110D1 (de) 1999-05-20
NO910260L (no) 1991-07-23
EP0439326B1 (de) 1999-04-14
CA2034088A1 (en) 1991-07-23
CA2034088C (en) 1994-05-17

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Legal Events

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