ZA858327B - A digital quartz-stable fm-discriminator - Google Patents

A digital quartz-stable fm-discriminator

Info

Publication number
ZA858327B
ZA858327B ZA858327A ZA858327A ZA858327B ZA 858327 B ZA858327 B ZA 858327B ZA 858327 A ZA858327 A ZA 858327A ZA 858327 A ZA858327 A ZA 858327A ZA 858327 B ZA858327 B ZA 858327B
Authority
ZA
South Africa
Prior art keywords
discriminator
phase comparator
output signal
stable
input
Prior art date
Application number
ZA858327A
Other languages
English (en)
Inventor
Ludwig Hofmann
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ZA858327B publication Critical patent/ZA858327B/xx

Links

Classifications

    • 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
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Television Signal Processing For Recording (AREA)
  • Dc Digital Transmission (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
ZA858327A 1984-10-31 1985-10-30 A digital quartz-stable fm-discriminator ZA858327B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3439825 1984-10-31

Publications (1)

Publication Number Publication Date
ZA858327B true ZA858327B (en) 1986-06-25

Family

ID=6249186

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA858327A ZA858327B (en) 1984-10-31 1985-10-30 A digital quartz-stable fm-discriminator

Country Status (8)

Country Link
US (1) US4642574A (enExample)
EP (1) EP0180153B1 (enExample)
AT (1) ATE45648T1 (enExample)
DE (1) DE3572428D1 (enExample)
DK (2) DK498785A (enExample)
FI (1) FI854264L (enExample)
NO (1) NO854192L (enExample)
ZA (1) ZA858327B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787096A (en) * 1987-03-04 1988-11-22 National Semiconductor Corp. Second-order carrier/symbol sychronizer
DE4240851C1 (de) * 1992-12-04 1994-01-27 Loewe Opta Gmbh Demodulator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936762A (en) * 1974-06-17 1976-02-03 The Charles Stark Draper Laboratory, Inc. Digital phase-lock loop systems for phase processing of signals
US3983498A (en) * 1975-11-13 1976-09-28 Motorola, Inc. Digital phase lock loop
US4097812A (en) * 1977-07-25 1978-06-27 Matsushita Electric Corporation Frequency selective detector circuit
US4345211A (en) * 1980-09-15 1982-08-17 Rockwell International Corporation Digital phaselock demodulator
US4373204A (en) * 1981-02-02 1983-02-08 Bell Telephone Laboratories, Incorporated Phase locked loop timing recovery circuit
JPS58137307A (ja) * 1982-02-10 1983-08-15 Hitachi Ltd パルスカウントｆｍ検波回路

Also Published As

Publication number Publication date
ATE45648T1 (de) 1989-09-15
DE3572428D1 (en) 1989-09-21
FI854264A0 (fi) 1985-10-30
FI854264A7 (fi) 1986-05-01
US4642574A (en) 1987-02-10
EP0180153B1 (de) 1989-08-16
FI854264L (fi) 1986-05-01
DK8504987A (enExample) 1986-05-01
EP0180153A3 (en) 1987-12-02
DK498785D0 (da) 1985-10-30
EP0180153A2 (de) 1986-05-07
NO854192L (no) 1986-05-02
DK498785A (da) 1986-05-01

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