DE3580594D1 - Demodulator fuer digitale, frequenzmodulierte signale. - Google Patents

Demodulator fuer digitale, frequenzmodulierte signale.

Info

Publication number
DE3580594D1
DE3580594D1 DE8585100190T DE3580594T DE3580594D1 DE 3580594 D1 DE3580594 D1 DE 3580594D1 DE 8585100190 T DE8585100190 T DE 8585100190T DE 3580594 T DE3580594 T DE 3580594T DE 3580594 D1 DE3580594 D1 DE 3580594D1
Authority
DE
Germany
Prior art keywords
demodulator
digital
frequency
modulated signals
modulated
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
DE8585100190T
Other languages
English (en)
Inventor
Yoshihiko Akaiwa
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.)
NEC Corp
Original Assignee
NEC Corp
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 JP59002901A external-priority patent/JPS60146558A/ja
Priority claimed from JP3346584A external-priority patent/JPS60210052A/ja
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE3580594D1 publication Critical patent/DE3580594D1/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)
  • Superheterodyne Receivers (AREA)
DE8585100190T 1984-01-11 1985-01-10 Demodulator fuer digitale, frequenzmodulierte signale. Expired - Fee Related DE3580594D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59002901A JPS60146558A (ja) 1984-01-11 1984-01-11 周波数検波器
JP3346584A JPS60210052A (ja) 1984-02-24 1984-02-24 周波数検波器

Publications (1)

Publication Number Publication Date
DE3580594D1 true DE3580594D1 (de) 1991-01-03

Family

ID=26336385

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585100190T Expired - Fee Related DE3580594D1 (de) 1984-01-11 1985-01-10 Demodulator fuer digitale, frequenzmodulierte signale.

Country Status (7)

Country Link
US (1) US4651107A (de)
EP (1) EP0151394B1 (de)
AU (1) AU567649B2 (de)
CA (1) CA1258300A (de)
DE (1) DE3580594D1 (de)
HK (1) HK39793A (de)
SG (1) SG119492G (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174576B (en) * 1985-04-29 1989-06-28 Plessey Co Plc Improvements in or relating to receivers
GB2193405A (en) * 1986-08-01 1988-02-03 Philips Electronic Associated Demodulating an angle-modulated signal
US5081650A (en) * 1989-07-12 1992-01-14 Matsushita Electric Industrial Co., Ltd. Data receiver
JPH0797779B2 (ja) * 1989-08-25 1995-10-18 松下電器産業株式会社 ９０度移相器とデータ受信機
US5418489A (en) * 1993-10-08 1995-05-23 Motorola, Inc. Method of recovering a frequency modulated signal
CN1087120C (zh) * 1994-11-10 2002-07-03 松下电器产业株式会社 直接变频接收机
JP2001285226A (ja) * 2000-03-31 2001-10-12 Pioneer Electronic Corp Ｆｍステレオ信号復調装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL295276A (de) * 1962-08-15
US3439283A (en) * 1966-02-04 1969-04-15 Gen Electric Frequency shift keyed discriminating circuits
JPS5820181B2 (ja) * 1974-09-25 1983-04-21 日本電気株式会社 タソウイソウドウキフクチヨウソウチ
GB2032737A (en) * 1978-10-24 1980-05-08 Standard Telephones Cables Ltd Radio receiver for tone modulated signals
GB2057820B (en) * 1979-09-04 1984-07-04 Standard Telephones Cables Ltd Radio receiver for fsk signals
GB2101821B (en) * 1981-07-16 1984-11-14 Standard Telephones Cables Ltd Radio receiver for frequency shift keyed signals
GB2106359B (en) * 1981-09-24 1985-07-03 Standard Telephones Cables Ltd Direct conversion radio receiver for fm signals
US4476585A (en) * 1982-01-25 1984-10-09 International Telephone And Telegraph Corporation Baseband demodulator for FM signals
GB2141007B (en) * 1983-06-02 1986-07-23 Standard Telephones Cables Ltd Demodulator logic for frequency shift keyed signals

Also Published As

Publication number Publication date
HK39793A (en) 1993-04-30
EP0151394A3 (en) 1986-05-07
CA1258300A (en) 1989-08-08
EP0151394A2 (de) 1985-08-14
AU3735085A (en) 1985-07-18
EP0151394B1 (de) 1990-11-22
SG119492G (en) 1993-02-19
AU567649B2 (en) 1987-11-26
US4651107A (en) 1987-03-17

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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