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DE69026550D1 - Quadraturempfänger für FSK-Signale mit Frequenzverschiebungskompensation - Google Patents

Quadraturempfänger für FSK-Signale mit Frequenzverschiebungskompensation

Info

Publication number
DE69026550D1
DE69026550D1 DE69026550T DE69026550T DE69026550D1 DE 69026550 D1 DE69026550 D1 DE 69026550D1 DE 69026550 T DE69026550 T DE 69026550T DE 69026550 T DE69026550 T DE 69026550T DE 69026550 D1 DE69026550 D1 DE 69026550D1
Authority
DE
Germany
Prior art keywords
frequency shift
shift compensation
quadrature receiver
fsk signals
fsk
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 - Fee Related
Application number
DE69026550T
Other languages
English (en)
Other versions
DE69026550T2 (de
Inventor
Makoto Hasegawa
Motoi Ohba
Mitsuo Makimoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP1181119A external-priority patent/JPH0785563B2/ja
Priority claimed from JP23852189A external-priority patent/JPH0736570B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69026550D1 publication Critical patent/DE69026550D1/de
Application granted granted Critical
Publication of DE69026550T2 publication Critical patent/DE69026550T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69026550T 1989-07-12 1990-07-04 Quadraturempfänger für FSK-Signale mit Frequenzverschiebungskompensation Expired - Fee Related DE69026550T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1181119A JPH0785563B2 (ja) 1989-07-12 1989-07-12 データ受信機
JP23852189A JPH0736570B2 (ja) 1989-09-14 1989-09-14 データ受信機

Publications (2)

Publication Number Publication Date
DE69026550D1 true DE69026550D1 (de) 1996-05-23
DE69026550T2 DE69026550T2 (de) 1996-10-10

Family

ID=26500416

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69026550T Expired - Fee Related DE69026550T2 (de) 1989-07-12 1990-07-04 Quadraturempfänger für FSK-Signale mit Frequenzverschiebungskompensation

Country Status (3)

Country Link
US (1) US5081650A (de)
EP (1) EP0412291B1 (de)
DE (1) DE69026550T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732108A (en) * 1993-03-04 1998-03-24 Nokia Mobile Phones Ltd. Method and apparatus for producing a difference signal between two signal frequencies, and for detection of modulation
FI94818C (fi) * 1993-06-02 1995-10-25 Nokia Telecommunications Oy Menetelmä digitaalisesti moduloidun signaalin demoduloimiseksi sekä demodulaattori
US5418489A (en) * 1993-10-08 1995-05-23 Motorola, Inc. Method of recovering a frequency modulated signal
GB2296845A (en) * 1995-01-04 1996-07-10 Plessey Semiconductors Ltd Frequency shift keyed radio receivers
JPH09261101A (ja) * 1996-03-18 1997-10-03 General Res Of Electron Inc 受信機
JPH1117749A (ja) * 1997-06-24 1999-01-22 Nec Corp 復調回路
GB2330261B (en) * 1997-10-09 2001-06-20 Plessey Semiconductors Ltd FSK Demodulator
US6137999A (en) * 1997-12-24 2000-10-24 Motorola, Inc. Image reject transceiver and method of rejecting an image
JP3927463B2 (ja) * 2002-07-30 2007-06-06 トヨタ自動車株式会社 ディジタル信号処理受信装置
US7477918B2 (en) * 2006-05-08 2009-01-13 Mediatek Inc. Radio frequency receiver and radio frequency transmitter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156194A (en) * 1977-09-06 1979-05-22 General Electric Company Frequency-shift-keyed receiver
GB2101821B (en) * 1981-07-16 1984-11-14 Standard Telephones Cables Ltd Radio receiver for frequency shift keyed signals
US4518922A (en) * 1983-01-17 1985-05-21 Harris Corporation Decision-directed, automatic frequency control technique for non-coherently demodulated M-ARY frequency shift keying
JPS60100859A (ja) * 1983-11-08 1985-06-04 Nec Corp 周波数検波器
US4651107A (en) * 1984-01-11 1987-03-17 Nec Corporation Demodulator for digital FM signals
DE3887409T2 (de) * 1987-08-29 1994-06-30 Fujitsu Ltd FSK-Demodulationsschaltung.

Also Published As

Publication number Publication date
EP0412291A2 (de) 1991-02-13
US5081650A (en) 1992-01-14
EP0412291B1 (de) 1996-04-17
EP0412291A3 (en) 1992-11-25
DE69026550T2 (de) 1996-10-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee