JPS558859B2 - - Google Patents

Info

Publication number
JPS558859B2
JPS558859B2 JP12003973A JP12003973A JPS558859B2 JP S558859 B2 JPS558859 B2 JP S558859B2 JP 12003973 A JP12003973 A JP 12003973A JP 12003973 A JP12003973 A JP 12003973A JP S558859 B2 JPS558859 B2 JP S558859B2
Authority
JP
Japan
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
JP12003973A
Other versions
JPS4983360A (ja
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 filed Critical
Publication of JPS4983360A publication Critical patent/JPS4983360A/ja
Publication of JPS558859B2 publication Critical patent/JPS558859B2/ja
Expired legal-status Critical Current

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
    • 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
    • H04L27/148—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Complex Calculations (AREA)
  • Filters That Use Time-Delay Elements (AREA)
JP12003973A 1972-11-17 1973-10-26 Expired JPS558859B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00307716A US3803501A (en) 1972-11-17 1972-11-17 Frequency discriminator using digital non-recursive filters

Publications (2)

Publication Number Publication Date
JPS4983360A JPS4983360A (ja) 1974-08-10
JPS558859B2 true JPS558859B2 (ja) 1980-03-06

Family

ID=23190909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12003973A Expired JPS558859B2 (ja) 1972-11-17 1973-10-26

Country Status (7)

Country Link
US (1) US3803501A (ja)
JP (1) JPS558859B2 (ja)
CA (1) CA992161A (ja)
DE (1) DE2356955C3 (ja)
FR (1) FR2207390B1 (ja)
GB (1) GB1409681A (ja)
IT (1) IT998646B (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215425A (en) * 1978-02-27 1980-07-29 Sangamo Weston, Inc. Apparatus and method for filtering signals in a logging-while-drilling system
DE3121444A1 (de) * 1981-05-29 1982-12-16 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zum demodulieren von fsk-signalen
DE3212054A1 (de) * 1982-04-01 1983-10-06 Blaupunkt Werke Gmbh Digitaler demodulator
DE3438370C1 (de) * 1984-10-19 1986-04-03 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur Demodulation eines frequenzmodulierten Datensignals
DE3517485A1 (de) * 1985-05-15 1986-11-20 Blaupunkt-Werke Gmbh, 3200 Hildesheim Demodulator fuer frequenzmodulierte signale in digitaler form
ATE56573T1 (de) * 1985-07-03 1990-09-15 Siemens Ag Digitale filterweiche, insbesondere fuer einen datenempfaenger.
JP2558655B2 (ja) * 1986-10-20 1996-11-27 松下電器産業株式会社 ディジタルｆｍ復調器
GB8703136D0 (en) * 1987-02-11 1987-03-18 Univ Cardiff Filtering electrical signals
GB8719849D0 (en) * 1987-08-21 1987-09-30 British Telecomm Fsk discriminator
US5119326A (en) * 1989-12-06 1992-06-02 Transwitch Corporation Waveshaping transversal filter and method utilizing the same for data transmission over coaxial cable
JP2581306B2 (ja) * 1990-11-24 1997-02-12 日本電気株式会社 ディジタル方式直交位相検波回路
FR2681197B1 (fr) * 1991-09-09 1993-10-29 France Telecom Discriminateur de frequence tronique.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521041A (en) * 1967-07-19 1970-07-21 Ibm Digital filters
US3689844A (en) * 1969-12-11 1972-09-05 Bell Telephone Labor Inc Digital filter receiver for frequency-shift data signals

Also Published As

Publication number Publication date
CA992161A (en) 1976-06-29
FR2207390A1 (ja) 1974-06-14
IT998646B (it) 1976-02-20
DE2356955B2 (de) 1981-03-26
DE2356955A1 (de) 1974-05-22
US3803501A (en) 1974-04-09
DE2356955C3 (de) 1981-11-26
GB1409681A (en) 1975-10-15
JPS4983360A (ja) 1974-08-10
FR2207390B1 (ja) 1976-04-30

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