FI103234B1 - Förfarande för digital frekvenslåsning av en radiosändaremottagare till den mottagna signalen - Google Patents

Förfarande för digital frekvenslåsning av en radiosändaremottagare till den mottagna signalen

Info

Publication number
FI103234B1
FI103234B1 FI910267A FI910267A FI103234B1 FI 103234 B1 FI103234 B1 FI 103234B1 FI 910267 A FI910267 A FI 910267A FI 910267 A FI910267 A FI 910267A FI 103234 B1 FI103234 B1 FI 103234B1
Authority
FI
Finland
Prior art keywords
signal
reference oscillator
frequency
radio transceiver
divider
Prior art date
Application number
FI910267A
Other languages
English (en)
Finnish (fi)
Other versions
FI103234B (sv
FI910267A (fi
FI910267A0 (fi
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
Publication of FI910267A0 publication Critical patent/FI910267A0/fi
Publication of FI910267A publication Critical patent/FI910267A/fi
Application granted granted Critical
Publication of FI103234B publication Critical patent/FI103234B/sv
Publication of FI103234B1 publication Critical patent/FI103234B1/sv

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

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Transmitters (AREA)
  • Radio Relay Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Analogue/Digital Conversion (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
FI910267A 1990-01-22 1991-01-18 Förfarande för digital frekvenslåsning av en radiosändaremottagare till den mottagna signalen FI103234B1 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46804090A 1990-01-22 1990-01-22
US46804090 1990-01-22

Publications (4)

Publication Number Publication Date
FI910267A0 FI910267A0 (fi) 1991-01-18
FI910267A FI910267A (fi) 1991-07-23
FI103234B FI103234B (sv) 1999-05-14
FI103234B1 true FI103234B1 (sv) 1999-05-14

Family

ID=23858200

Family Applications (1)

Application Number Title Priority Date Filing Date
FI910267A FI103234B1 (sv) 1990-01-22 1991-01-18 Förfarande för digital frekvenslåsning av en radiosändaremottagare till den mottagna signalen

Country Status (7)

Country Link
EP (1) EP0439326B1 (sv)
AT (1) ATE179037T1 (sv)
CA (1) CA2034088C (sv)
DE (1) DE69131110T2 (sv)
FI (1) FI103234B1 (sv)
NO (1) NO178249C (sv)
SG (1) SG46267A1 (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0129462B1 (ko) * 1992-08-06 1998-04-08 존 에이취. 무어 결합된 위상 동기루프와 자동주파수 제어루프를 구비한 무선전화기 및 그의 동작방법
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
ATE179037T1 (de) 1999-04-15
FI103234B (sv) 1999-05-14
NO910260L (no) 1991-07-23
DE69131110T2 (de) 1999-11-11
NO178249C (no) 1996-02-14
FI910267A (fi) 1991-07-23
SG46267A1 (en) 1998-02-20
CA2034088A1 (en) 1991-07-23
EP0439326A3 (en) 1992-07-22
EP0439326B1 (en) 1999-04-14
FI910267A0 (fi) 1991-01-18
CA2034088C (en) 1994-05-17
NO910260D0 (no) 1991-01-22
EP0439326A2 (en) 1991-07-31
NO178249B (no) 1995-11-06
DE69131110D1 (de) 1999-05-20

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: MOTOROLA, INC.