ES8402995A1 - Un demodulador digital de senales en modulacion de frecuencia. - Google Patents

Un demodulador digital de senales en modulacion de frecuencia.

Info

Publication number
ES8402995A1
ES8402995A1 ES520616A ES520616A ES8402995A1 ES 8402995 A1 ES8402995 A1 ES 8402995A1 ES 520616 A ES520616 A ES 520616A ES 520616 A ES520616 A ES 520616A ES 8402995 A1 ES8402995 A1 ES 8402995A1
Authority
ES
Spain
Prior art keywords
signal
frequency
input signal
demodulator
converting
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
Application number
ES520616A
Other languages
English (en)
Other versions
ES520616A0 (es
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 Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES8402995A1 publication Critical patent/ES8402995A1/es
Publication of ES520616A0 publication Critical patent/ES520616A0/es
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/504—Analogue/digital converters with intermediate conversion to time interval using pulse width modulation
    • H03M1/506—Analogue/digital converters with intermediate conversion to time interval using pulse width modulation the pulse width modulator being of the charge-balancing type

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

DEMODULADOR DIGITAL DE SEÑALES EN MODULACION DE FRECUENCIA.COMPRENDE UN CIRCUITO LIMITADOR-AMPLIFICADO R (4) CUYA SALIDA SE DIVIDE Y APLICA AL GENERADOR DE IMPULSOS (5), JUNTO CON LA PROPORCIONADA EN EL FILTRO DE PASO TOTAL (6). POSTERIORMENTE SE ENCUENTRA UN MODULADOR (7) TEMPORIZADO Y UN FILTRO DE PASO-BAJO (8) DE MODO QUE LA SALIDA DIGITAL ESTE LIBRE DE DISTORSIONES.
ES520616A 1982-03-22 1983-03-15 Un demodulador digital de senales en modulacion de frecuencia. Granted ES520616A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/360,735 US4476435A (en) 1982-03-22 1982-03-22 Digital demodulation of frequency modulated signals

Publications (2)

Publication Number Publication Date
ES8402995A1 true ES8402995A1 (es) 1984-03-16
ES520616A0 ES520616A0 (es) 1984-03-16

Family

ID=23419204

Family Applications (1)

Application Number Title Priority Date Filing Date
ES520616A Granted ES520616A0 (es) 1982-03-22 1983-03-15 Un demodulador digital de senales en modulacion de frecuencia.

Country Status (6)

Country Link
US (1) US4476435A (es)
EP (1) EP0089624A3 (es)
JP (1) JPS58212204A (es)
BE (1) BE896184A (es)
ES (1) ES520616A0 (es)
MX (1) MX153535A (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2618742B2 (ja) * 1990-07-09 1997-06-11 康人 竹内 Ｆｍ復調器
DE4104882A1 (de) * 1991-02-18 1992-08-20 Blaupunkt Werke Gmbh Autoradio mit einer schaltungsanordnung zur analog/digital-wandlung eines zwischenfrequenzsignals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862185A (en) * 1956-06-29 1958-11-25 John O Dick Electronic fm/fm to analog or digital converter
US3350637A (en) * 1964-05-07 1967-10-31 Bendix Corp Variable frequency to pulse-width converter
US3528019A (en) * 1966-11-04 1970-09-08 Nippon Electric Co F-m demodulation system employing a balanced limiter and a balanced amplifying circuit
JPS5233460A (en) * 1975-09-10 1977-03-14 Sony Corp Fm demodulator
JPS5737904A (en) * 1980-08-13 1982-03-02 Hitachi Ltd Quadrature wave detecting circuit

Also Published As

Publication number Publication date
MX153535A (es) 1986-11-11
JPS58212204A (ja) 1983-12-09
EP0089624A2 (de) 1983-09-28
BE896184A (fr) 1983-09-19
US4476435A (en) 1984-10-09
ES520616A0 (es) 1984-03-16
EP0089624A3 (de) 1987-01-14

Similar Documents

Publication Publication Date Title
EP0143539A3 (en) Digital demodulator arrangement for quadrature signals
WO1994007310A3 (en) Analogue to digital and digital to analogue converters
EP0748092A3 (en) Modulation method and modulator for digital signal
SG82659A1 (en) An electronic digital-to-analog converter circuit for a baseband transmission system
ES480540A1 (es) Un metodo de reducir las componentes de interferencia en unasenal modulada en frecuencia.
DE3271199D1 (en) Circuit recovering the carrier of a signal amplitude and phase modulated by digital signals
EP0364273A3 (en) Digital demodulator system
KR840007335A (ko) 비화신호 송신시스템
ES8402995A1 (es) Un demodulador digital de senales en modulacion de frecuencia.
JPS555516A (en) Code transmission system
EP0285252A3 (en) Digital signal demodulation
JPS6471366A (en) Coherent digital signal blanking, bi-phase modulation and frequency doubler circuit and methodology
GB1495184A (en) Fm-am converter
ATE89442T1 (de) Rauschverminderung bei fernsehsignalen.
JPS6439122A (en) Digital data demodulating circuit
DE3377326D1 (en) Digital direct rf-modulation method and circuit arrangement for carrying out said method
EP0325459A3 (en) Digital modulator
JPS5718145A (en) Signal separation system
JPS57129527A (en) Frequency-to-digital converting system
JPS55135308A (en) Recording method for information to recording carrier
JPS5797277A (en) Television video audio simultaneous transmitter
DE3467282D1 (en) Circuit for digitally encoding an analogous colour television signal
SU832730A1 (ru) Передатчик частотно-модулированныхСигНАлОВ
JPS5627551A (en) Digital arithmetic modulator and demodulator
JPS5797278A (en) Television video fm transmitter