DE2645950A1 - Radio-empfaenger fuer frequenzmodulierte signale - Google Patents

Radio-empfaenger fuer frequenzmodulierte signale

Info

Publication number
DE2645950A1
DE2645950A1 DE19762645950 DE2645950A DE2645950A1 DE 2645950 A1 DE2645950 A1 DE 2645950A1 DE 19762645950 DE19762645950 DE 19762645950 DE 2645950 A DE2645950 A DE 2645950A DE 2645950 A1 DE2645950 A1 DE 2645950A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
frequency
radio receiver
modulated signals
modulated
signals
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.)
Granted
Application number
DE19762645950
Other languages
English (en)
Other versions
DE2645950C2 (de )
Inventor
Ian Alistair Ward Vance
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.)
International Standard Electric Corp (ISEC)
Original Assignee
International Standard Electric Corp (ISEC)
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/30Circuits for homodyne or synchrodyne receivers
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/006Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/009Compensating quadrature phase or amplitude imbalances
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001Circuit elements of demodulators
    • H03D2200/0025Gain control circuits
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001Circuit elements of demodulators
    • H03D2200/0031PLL circuits with quadrature locking, e.g. a Costas loop
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041Functional aspects of demodulators
    • H03D2200/0082Quadrature arrangements
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16Multiple-frequency-changing
    • H03D7/161Multiple-frequency-changing all the frequency changers being connected in cascade
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16Multiple-frequency-changing
    • H03D7/165Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
DE19762645950 1975-10-14 1976-10-12 Expired DE2645950C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4198875A GB1530602A (en) 1975-10-14 1975-10-14 Demodulator for fm signals

Publications (2)

Publication Number Publication Date
DE2645950A1 true true DE2645950A1 (de) 1977-04-28
DE2645950C2 DE2645950C2 (de) 1985-09-05

Family

ID=10422311

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762645950 Expired DE2645950C2 (de) 1975-10-14 1976-10-12

Country Status (3)

Country Link
DE (1) DE2645950C2 (de)
ES (1) ES452383A1 (de)
GB (1) GB1530602A (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800253A1 (de) * 1977-01-13 1978-07-20 Int Standard Electric Corp Funkempfaenger
DE2850840A1 (de) * 1977-12-01 1979-06-13 Int Standard Electric Corp Funk-sende/empfangsgeraet
DE3021216A1 (de) * 1979-06-08 1980-12-11 Plessey Handel Investment Ag Relaissender-empfaenger, insbesondere fuer am-duplexbetrieb
DE3007907A1 (de) * 1980-03-01 1981-09-17 Licentia Gmbh Digitaler empfaenger
EP0046682A1 (de) * 1980-08-26 1982-03-03 International Standard Electric Corporation Einkanaliges Duplex-Nachrichtensystem
EP0084876A2 (de) * 1982-01-25 1983-08-03 International Standard Electric Corporation Demodulatoranordnung zur Demodulation von in Frequenzmodulation auf einer Trägerfrequenzwelle enthaltener Signale
JPS58133005A (en) * 1982-02-02 1983-08-08 Nec Corp Fm demodulator
EP0151334A2 (de) * 1983-07-14 1985-08-14 Stc Plc Direktmisch-F.M.-Radioempfänger
DE3412190A1 (de) * 1984-04-02 1985-10-10 Telefunken Electronic Gmbh Integrierbare empfaengerschaltung
DE3412191A1 (de) * 1984-04-02 1985-10-31 Telefunken Electronic Gmbh Integrierbare empfaengerschaltung
DE3516492A1 (de) * 1985-05-08 1986-11-13 Standard Elektrik Lorenz Ag Funkempfaenger
EP0344467A1 (de) * 1988-05-04 1989-12-06 Alcatel SEL Aktiengesellschaft Quadratur-Empfänger
US4949396A (en) * 1987-11-04 1990-08-14 U.S. Philips Corp. Divider method and apparatus with means for avoiding divide by zero errors
EP0401771A2 (de) * 1989-06-09 1990-12-12 TEMIC TELEFUNKEN microelectronic GmbH Schaltungsanordnung zur Frequenzumsetzung
EP0623993A2 (de) * 1993-04-08 1994-11-09 Philips Electronics Uk Limited Vierquadranten-Multiplizierschaltung und eine solche Schaltung enthaltender Empfänger
EP0901223A2 (de) * 1997-09-02 1999-03-10 Siemens Aktiengesellschaft Empfänger für Mobilfunksysteme
CN1988397B (zh) 2005-12-21 2011-05-25 上海贝岭股份有限公司 一种调频接收器及其解调方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2094079A (en) * 1981-02-20 1982-09-08 Philips Electronic Associated Fm demodulator
GB2109201B (en) * 1981-10-26 1985-03-27 Philips Electronic Associated Direct modulation fm receiver
GB2137836B (en) * 1983-04-06 1986-07-23 Multitone Electronics Plc Fm demodulators
US4580101A (en) * 1983-04-06 1986-04-01 Multitone Electronics Plc FM demodulators with local oscillator frequency control circuits
GB8328162D0 (en) * 1983-10-21 1983-12-21 Philips Electronic Associated Data receiver
US4577157A (en) * 1983-12-12 1986-03-18 International Telephone And Telegraph Corporation Zero IF receiver AM/FM/PM demodulator using sampling techniques
US4731796A (en) * 1984-10-25 1988-03-15 Stc, Plc Multi-mode radio transceiver
JPS61171207A (en) * 1985-01-25 1986-08-01 Nec Corp Receiver
DE3613994C2 (de) * 1986-04-25 1989-10-05 Schrack Elektronik-Ag, Wien, At
US4811425A (en) * 1987-01-09 1989-03-07 Itt Avionics, A Division Of Itt Corporation Apparatus for reducing the effects of local oscillator leakage in mixers employed in zero IF receivers
DE19810558A1 (de) 1998-03-11 1999-09-16 Siemens Ag Integrierbare Funkempfängerschaltung für frequenzmodulierte digitale Signale
EP1192709B1 (de) * 1999-06-30 2003-07-30 Infineon Technologies AG Vorrichtung und verfahren zum demodulieren frequenzmodulierter signale

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1616312B2 (de) * 1968-01-25 1973-10-18 Helmut 8000 Muenchen Spieler
DE2358288A1 (de) * 1973-11-22 1975-06-05 Standard Elektrik Lorenz Ag Empfaenger fuer frequenzmodulierte hf-signale

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1616312B2 (de) * 1968-01-25 1973-10-18 Helmut 8000 Muenchen Spieler
DE2358288A1 (de) * 1973-11-22 1975-06-05 Standard Elektrik Lorenz Ag Empfaenger fuer frequenzmodulierte hf-signale

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800253A1 (de) * 1977-01-13 1978-07-20 Int Standard Electric Corp Funkempfaenger
DE2850840A1 (de) * 1977-12-01 1979-06-13 Int Standard Electric Corp Funk-sende/empfangsgeraet
DE3021216A1 (de) * 1979-06-08 1980-12-11 Plessey Handel Investment Ag Relaissender-empfaenger, insbesondere fuer am-duplexbetrieb
DE3007907A1 (de) * 1980-03-01 1981-09-17 Licentia Gmbh Digitaler empfaenger
EP0046682A1 (de) * 1980-08-26 1982-03-03 International Standard Electric Corporation Einkanaliges Duplex-Nachrichtensystem
EP0084876A3 (de) * 1982-01-25 1985-10-23 International Standard Electric Corporation Demodulatoranordnung zur Demodulation von in Frequenzmodulation auf einer Trägerfrequenzwelle enthaltener Signale
EP0084876A2 (de) * 1982-01-25 1983-08-03 International Standard Electric Corporation Demodulatoranordnung zur Demodulation von in Frequenzmodulation auf einer Trägerfrequenzwelle enthaltener Signale
JPS58133005A (en) * 1982-02-02 1983-08-08 Nec Corp Fm demodulator
EP0151334A2 (de) * 1983-07-14 1985-08-14 Stc Plc Direktmisch-F.M.-Radioempfänger
EP0151334A3 (de) * 1983-07-14 1986-11-20 Stc Plc Direktmisch-F.M.-Radioempfänger
DE3412191A1 (de) * 1984-04-02 1985-10-31 Telefunken Electronic Gmbh Integrierbare empfaengerschaltung
DE3412190A1 (de) * 1984-04-02 1985-10-10 Telefunken Electronic Gmbh Integrierbare empfaengerschaltung
DE3516492A1 (de) * 1985-05-08 1986-11-13 Standard Elektrik Lorenz Ag Funkempfaenger
US4949396A (en) * 1987-11-04 1990-08-14 U.S. Philips Corp. Divider method and apparatus with means for avoiding divide by zero errors
EP0344467A1 (de) * 1988-05-04 1989-12-06 Alcatel SEL Aktiengesellschaft Quadratur-Empfänger
US4955039A (en) * 1988-05-04 1990-09-04 Alcatel N.V. Quadrature receiver
US5179731A (en) * 1989-06-09 1993-01-12 Licentia-Patent-Verwaltungs-Gmbh Frequency conversion circuit
EP0401771A2 (de) * 1989-06-09 1990-12-12 TEMIC TELEFUNKEN microelectronic GmbH Schaltungsanordnung zur Frequenzumsetzung
EP0401771A3 (de) * 1989-06-09 1991-09-04 TEMIC TELEFUNKEN microelectronic GmbH Schaltungsanordnung zur Frequenzumsetzung
EP0623993A2 (de) * 1993-04-08 1994-11-09 Philips Electronics Uk Limited Vierquadranten-Multiplizierschaltung und eine solche Schaltung enthaltender Empfänger
EP0623993A3 (de) * 1993-04-08 1995-01-18 Philips Electronics Uk Ltd Vierquadranten-Multiplizierschaltung und eine solche Schaltung enthaltender Empfänger.
EP0901223A2 (de) * 1997-09-02 1999-03-10 Siemens Aktiengesellschaft Empfänger für Mobilfunksysteme
EP0901223A3 (de) * 1997-09-02 2000-02-16 Siemens Aktiengesellschaft Empfänger für Mobilfunksysteme
CN1988397B (zh) 2005-12-21 2011-05-25 上海贝岭股份有限公司 一种调频接收器及其解调方法

Also Published As

Publication number Publication date Type
DE2645950C2 (de) 1985-09-05 grant
ES452383A1 (es) 1978-01-01 application
GB1530602A (en) 1978-11-01 application

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