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BE862789A - Procede et installation pour la reception et la production de signaux modules en frequence - Google Patents

Procede et installation pour la reception et la production de signaux modules en frequence

Info

Publication number
BE862789A
BE862789A BE184229A BE184229A BE862789A BE 862789 A BE862789 A BE 862789A BE 184229 A BE184229 A BE 184229A BE 184229 A BE184229 A BE 184229A BE 862789 A BE862789 A BE 862789A
Authority
BE
Belgium
Prior art keywords
installation
receiving
modulated signals
frequency modulated
generating frequency
Prior art date
Application number
BE184229A
Other languages
English (en)
Original Assignee
Hiradastechnikai Ipari Ki
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 Hiradastechnikai Ipari Ki filed Critical Hiradastechnikai Ipari Ki
Publication of BE862789A publication Critical patent/BE862789A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • H04L27/1525—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/009—Compensating quadrature phase or amplitude imbalances
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
BE184229A 1977-01-10 1978-01-10 Procede et installation pour la reception et la production de signaux modules en frequence BE862789A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU77HI455A HU175236B (hu) 1977-01-10 1977-01-10 Sposob i ustrojstvo dlja prijoma i generacii chastotno-modulirovannykh signalov

Publications (1)

Publication Number Publication Date
BE862789A true BE862789A (fr) 1978-05-02

Family

ID=10997191

Family Applications (1)

Application Number Title Priority Date Filing Date
BE184229A BE862789A (fr) 1977-01-10 1978-01-10 Procede et installation pour la reception et la production de signaux modules en frequence

Country Status (5)

Country Link
BE (1) BE862789A (fr)
DE (1) DE2800242A1 (fr)
HU (1) HU175236B (fr)
NL (1) NL7800249A (fr)
SE (1) SE7800254L (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7808637A (nl) * 1978-08-22 1980-02-26 Philips Nv Ontvanger voor frequentiegemoduleerde signalen met twee quadratuur kanalen.
US4525862A (en) * 1980-07-02 1985-06-25 Motorola, Inc. Transform modulation system
GB2094079A (en) * 1981-02-20 1982-09-08 Philips Electronic Associated Fm demodulator
EP0072241B1 (fr) * 1981-08-10 1986-08-13 Fujitsu Limited Circuit de régénération d'onde porteuse
US4476585A (en) * 1982-01-25 1984-10-09 International Telephone And Telegraph Corporation Baseband demodulator for FM signals
FR2543379B1 (fr) * 1983-03-25 1990-03-02 Thomson Csf Dispositif de demodulation directe en hyperfrequence et chaine de reception hyperfrequence comportant un tel dispositif
DE3340325A1 (de) * 1983-11-08 1985-05-15 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zur feststellung des vorhandenseins oder nichtvorhandenseins mindestens einer frequenz bekannten wertes in einem aus mehreren frequenzen zusammengesetzten eingangssignal
GB2175473A (en) * 1985-05-17 1986-11-26 Philips Electronic Associated D.c. block capacitor circuit
DE3613994A1 (de) * 1986-04-25 1987-10-29 Schrack Elektronik Ag Schaltungsanordnung zum demodulieren frequenzmodulierter signale
GB2193405A (en) * 1986-08-01 1988-02-03 Philips Electronic Associated Demodulating an angle-modulated signal
GB2210742A (en) * 1987-10-05 1989-06-14 Philips Nv Frequency difference detector (fdd) and a carrier modulated receiver including such a fdd
GB2210743A (en) * 1987-10-05 1989-06-14 Philips Nv Frequency difference detector (fdd) having automatic gain control and a carrier modulated receiver including the fdd
NL8802868A (nl) * 1988-11-21 1990-06-18 Stichting Tech Wetenschapp Fasevergrendelde lus met lusversterking - en nulpuntscompensatie.
JPH04310037A (ja) * 1991-04-09 1992-11-02 Nec Corp Ｆｓｋ受信機

Also Published As

Publication number Publication date
NL7800249A (nl) 1978-07-12
DE2800242A1 (de) 1978-07-13
SE7800254L (sv) 1978-07-11
HU175236B (hu) 1980-06-28

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