ES2020089A6 - Transceptor de frecuencia modulada. - Google Patents

Transceptor de frecuencia modulada.

Info

Publication number
ES2020089A6
ES2020089A6 ES9000078A ES9000078A ES2020089A6 ES 2020089 A6 ES2020089 A6 ES 2020089A6 ES 9000078 A ES9000078 A ES 9000078A ES 9000078 A ES9000078 A ES 9000078A ES 2020089 A6 ES2020089 A6 ES 2020089A6
Authority
ES
Spain
Prior art keywords
frequency
local oscillator
modulated
transmitter
frequency mixer
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.)
Expired - Lifetime
Application number
ES9000078A
Other languages
English (en)
Inventor
Jarmo Makinen
Reino Talarmo
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 ES2020089A6 publication Critical patent/ES2020089A6/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Transceivers (AREA)
  • Transmitters (AREA)

Abstract

LA INVENCION SE REFIERE A UN TRANSCEPTOR DE FM CUYO TRANSMISOR COMPRENDE UN OSCILADOR CON MODULACION DE FM (1) QUE TIENEN UNA ENTRADA Y UNA SALIDA DE MODULACION Y EL RECEPTOR COMPRENDE, EN CASACADA: UN MEZCLADOR DE ALTA FRECUENCIA (9) CON UNA ENTRADA DE OSCILADOR LOCAL CONECTADA A LA SALIDA DEL OSCILADOR (1); UN PRIMER FILTRO INTERMEDIO (8) Y UN MEZCLADOR DE FRECUENCIA INTERMEDIA (7); EL RECEPTOR COMPRENDE UN OSCILADOR LOCAL DE FM (4) CON UNA SALIDA CONECTADA A UNA ENTRADA DEL OSCILADOR LOCAL DEL MEZCLADOR (7), MODULANDOSE EL OSCILADOR LOCAL CON LA SEÑAL DE MODULACION DEL TRANSMISOR. LA MODULACION PRODUCIDA POR LA PARTE TRANSMISORA DEL TRANSCEPTOR EN LA SEÑAL DE SALIDA DEL MEZCLADOR SE REDUCE MEDIANTE UN RETARDADOR (3) CONECTADO EN SERIE CON EL OSCILADOR LOCAL (4), COMPENSANDO EL RETARDADOR (3) LA DIFERENCIA DE TIEMPO ENTRE LA MODULACION DE LA SEÑAL DEL OSCILADOR LOCAL DEL MEZCLADOR (7) Y LA MODULACION PRODUCIDA POR LA PARTE TRANSMISORA DE LA SEÑAL DE ENTRADA DEL MEZCLADOR DE FRECUENCIA INTERMEDIA (7).
ES9000078A 1989-01-13 1990-01-12 Transceptor de frecuencia modulada. Expired - Lifetime ES2020089A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI890191A FI80549C (fi) 1989-01-13 1989-01-13 Frekvensmodulerad saendarmottagare.

Publications (1)

Publication Number Publication Date
ES2020089A6 true ES2020089A6 (es) 1991-07-16

Family

ID=8527719

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9000078A Expired - Lifetime ES2020089A6 (es) 1989-01-13 1990-01-12 Transceptor de frecuencia modulada.

Country Status (6)

Country Link
AU (1) AU625604B2 (es)
ES (1) ES2020089A6 (es)
FI (1) FI80549C (es)
FR (1) FR2641915A1 (es)
GB (1) GB2228379B (es)
IT (1) IT1238167B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI80549C (fi) * 1989-01-13 1990-06-11 Telenokia Oy Frekvensmodulerad saendarmottagare.
FI94808C (fi) * 1991-08-29 1995-10-25 Nokia Telecommunications Oy Taajuusmoduloitu lähetinvastaanotin
NO305499B1 (no) * 1996-11-06 1999-06-07 Nera Asa System og fremgangsmÕte ved nedomforming hvor det mottatte signalet nedomformes
GB2363267B (en) * 2000-06-07 2002-08-07 Motorola Israel Ltd Circuit and method for signal phase control in a radio transceiver
CN102916718B (zh) * 2012-10-31 2014-12-17 成都航天通信设备有限责任公司 一种电台网络的通信方法

Family Cites Families (7)

* 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
EP0135816B1 (en) * 1983-08-24 1989-05-24 Toyo Communication Equipment Co.,Ltd. Signal transmission and reception system
WO1985002734A1 (en) * 1983-12-05 1985-06-20 Motorola, Inc. Duplex communication transceiver with modulation cancellation
GB8420210D0 (en) * 1984-08-09 1984-09-12 British Telecomm Duplex microwave equipment
JPS61220528A (ja) * 1985-03-26 1986-09-30 Nec Corp 同時送受話無線機
FI80549C (fi) * 1989-01-13 1990-06-11 Telenokia Oy Frekvensmodulerad saendarmottagare.

Also Published As

Publication number Publication date
FI80549B (fi) 1990-02-28
AU625604B2 (en) 1992-07-16
AU4792590A (en) 1990-07-19
GB9000641D0 (en) 1990-03-14
FR2641915B1 (es) 1994-04-22
IT9019053A1 (it) 1990-07-14
FI80549C (fi) 1990-06-11
IT9019053A0 (it) 1990-01-12
IT1238167B (it) 1993-07-09
FI890191A0 (fi) 1989-01-13
FR2641915A1 (fr) 1990-07-20
GB2228379B (en) 1993-01-13
GB2228379A (en) 1990-08-22

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20041004