SE389953B - Anordning gor automatisk korrektion av frekvensen hos en lokaloscillator vid en demodulator for fasdifferensmodulerade vagor - Google Patents

Anordning gor automatisk korrektion av frekvensen hos en lokaloscillator vid en demodulator for fasdifferensmodulerade vagor

Info

Publication number
SE389953B
SE389953B SE7405134A SE7405134A SE389953B SE 389953 B SE389953 B SE 389953B SE 7405134 A SE7405134 A SE 7405134A SE 7405134 A SE7405134 A SE 7405134A SE 389953 B SE389953 B SE 389953B
Authority
SE
Sweden
Prior art keywords
vagors
demodulator
frequency
phase difference
local oscillator
Prior art date
Application number
SE7405134A
Other languages
English (en)
Inventor
Mouel B Le
Original Assignee
Lannionnais Electronique
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 Lannionnais Electronique filed Critical Lannionnais Electronique
Publication of SE389953B publication Critical patent/SE389953B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
SE7405134A 1973-04-19 1974-04-17 Anordning gor automatisk korrektion av frekvensen hos en lokaloscillator vid en demodulator for fasdifferensmodulerade vagor SE389953B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7314467A FR2226790B1 (sv) 1973-04-19 1973-04-19

Publications (1)

Publication Number Publication Date
SE389953B true SE389953B (sv) 1976-11-22

Family

ID=9118286

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7405134A SE389953B (sv) 1973-04-19 1974-04-17 Anordning gor automatisk korrektion av frekvensen hos en lokaloscillator vid en demodulator for fasdifferensmodulerade vagor

Country Status (12)

Country Link
US (1) US3919651A (sv)
JP (1) JPS5010946A (sv)
BE (1) BE813404A (sv)
CA (1) CA1051983A (sv)
DE (1) DE2416715A1 (sv)
FR (1) FR2226790B1 (sv)
GB (1) GB1438252A (sv)
IE (1) IE39196B1 (sv)
IT (1) IT1014590B (sv)
LU (1) LU69826A1 (sv)
NL (1) NL7405289A (sv)
SE (1) SE389953B (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973212A (en) * 1975-08-28 1976-08-03 Rockwell International Corporation Phase detection in phase lock loop circuit
US4520493A (en) * 1981-12-07 1985-05-28 Hughes Aircraft Company Adaptive recursive frequency offset tracking system
FR2544571B1 (fr) * 1983-04-12 1985-06-14 Prigent Jean Pierre Recuperation des frequences de porteuse et de rythme pour les systemes de transmission numerique a modulation a etats de phase ou d'amplitude et a demodulation coherente
US5027352A (en) * 1989-01-05 1991-06-25 Motorola, Inc. Receiver frequency offset bias circuit for TDM radios
EP0735730A3 (en) * 1995-03-28 1999-07-07 Matsushita Electric Industrial Co., Ltd. Automatic frequency controller
US6665356B1 (en) * 1999-06-10 2003-12-16 Agere Systems Inc. Sample timing control for demodulation of phase-modulated signals
US6567486B1 (en) * 1999-07-26 2003-05-20 Lucent Technologies Inc. Apparatus and method for finding location of a mobile unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE758413A (fr) * 1969-11-04 1971-05-03 Philips Nv Recepteur pour impulsions modulant une porteuse et situees dansune bande de frequence determinee
DE2049059C3 (de) * 1970-10-06 1978-11-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Ausregelung von Phasenfehlern beim Empfang phasengetasteter Signale
US3753114A (en) * 1971-12-02 1973-08-14 Culbertson Ind Inc Method and apparatus for the recovery of synchronous carrier in a digital communication system
US3838350A (en) * 1972-08-04 1974-09-24 Westinghouse Electric Corp Differential encoded quadriphase demodulator
US3787775A (en) * 1973-03-28 1974-01-22 Trw Inc Phase correction circuit

Also Published As

Publication number Publication date
FR2226790B1 (sv) 1977-08-19
LU69826A1 (sv) 1974-11-21
DE2416715A1 (de) 1974-10-31
IE39196B1 (en) 1978-08-16
NL7405289A (sv) 1974-10-22
IT1014590B (it) 1977-04-30
FR2226790A1 (sv) 1974-11-15
CA1051983A (fr) 1979-04-03
BE813404A (fr) 1974-10-08
JPS5010946A (sv) 1975-02-04
US3919651A (en) 1975-11-11
GB1438252A (en) 1976-06-03
IE39196L (en) 1974-10-19

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