FR2641916A1 - Frequency-modulated transmitter/receiver - Google Patents

Frequency-modulated transmitter/receiver Download PDF

Info

Publication number
FR2641916A1
FR2641916A1 FR9000259A FR9000259A FR2641916A1 FR 2641916 A1 FR2641916 A1 FR 2641916A1 FR 9000259 A FR9000259 A FR 9000259A FR 9000259 A FR9000259 A FR 9000259A FR 2641916 A1 FR2641916 A1 FR 2641916A1
Authority
FR
France
Prior art keywords
oscillator
modulation
transmitter
local oscillator
signal
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
FR9000259A
Other languages
English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Telenokia Oy
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 Telenokia Oy filed Critical Telenokia Oy
Publication of FR2641916A1 publication Critical patent/FR2641916A1/fr
Pending legal-status Critical Current

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
    • H04B1/408—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency the transmitter oscillator frequency being identical to the receiver local oscillator frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
FR9000259A 1989-01-13 1990-01-11 Frequency-modulated transmitter/receiver Pending FR2641916A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI890192A FI80550C (fi) 1989-01-13 1989-01-13 Frekvensmodulerad saendarmottagare.

Publications (1)

Publication Number Publication Date
FR2641916A1 true FR2641916A1 (en) 1990-07-20

Family

ID=8527720

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9000259A Pending FR2641916A1 (en) 1989-01-13 1990-01-11 Frequency-modulated transmitter/receiver

Country Status (6)

Country Link
AU (1) AU4792490A (it)
ES (1) ES2020088A6 (it)
FI (1) FI80550C (it)
FR (1) FR2641916A1 (it)
GB (1) GB2228378A (it)
IT (1) IT1238166B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2909795A (en) * 1994-06-29 1996-01-25 Honeywell Inc. Spurious response rejecting mixer using spread spectrum techniques
NO305499B1 (no) * 1996-11-06 1999-06-07 Nera Asa System og fremgangsmÕte ved nedomforming hvor det mottatte signalet nedomformes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002734A1 (en) * 1983-12-05 1985-06-20 Motorola, Inc. Duplex communication transceiver with modulation cancellation
EP0171997A1 (en) * 1984-08-09 1986-02-19 BRITISH TELECOMMUNICATIONS public limited company Duplex microwave equipment with a single microwave oscillator
JPS61220528A (ja) * 1985-03-26 1986-09-30 Nec Corp 同時送受話無線機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1023434A (en) * 1973-03-02 1977-12-27 Salvatore Amoroso (Jr.) Single oscillator microwave transceiver
US3916412A (en) * 1974-08-29 1975-10-28 United Technologies Corp Frequency stabilized single oscillator transceivers
US4633511A (en) * 1983-08-24 1986-12-30 Toyo Communication Equipment Co. Signal transmission and reception system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002734A1 (en) * 1983-12-05 1985-06-20 Motorola, Inc. Duplex communication transceiver with modulation cancellation
EP0171997A1 (en) * 1984-08-09 1986-02-19 BRITISH TELECOMMUNICATIONS public limited company Duplex microwave equipment with a single microwave oscillator
JPS61220528A (ja) * 1985-03-26 1986-09-30 Nec Corp 同時送受話無線機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 11, no. 61 (E-483)[2508], 25 février 1987; & JP-A-61 220 528 (NEC CORP.) 30-09-1986 *

Also Published As

Publication number Publication date
GB2228378A (en) 1990-08-22
AU4792490A (en) 1990-07-19
FI80550C (fi) 1990-06-11
GB9000640D0 (en) 1990-03-14
IT9019052A1 (it) 1990-07-14
FI80550B (fi) 1990-02-28
ES2020088A6 (es) 1991-07-16
FI890192A0 (fi) 1989-01-13
IT1238166B (it) 1993-07-09
IT9019052A0 (it) 1990-01-12

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