JPS5573149A - Radio wave receiver for signal modulated by signal sound - Google Patents

Radio wave receiver for signal modulated by signal sound

Info

Publication number
JPS5573149A
JPS5573149A JP13649979A JP13649979A JPS5573149A JP S5573149 A JPS5573149 A JP S5573149A JP 13649979 A JP13649979 A JP 13649979A JP 13649979 A JP13649979 A JP 13649979A JP S5573149 A JPS5573149 A JP S5573149A
Authority
JP
Japan
Prior art keywords
signal
radio wave
wave receiver
sound
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.)
Pending
Application number
JP13649979A
Other languages
English (en)
Inventor
Arisutea Uoodo Buansu Ian
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of JPS5573149A publication Critical patent/JPS5573149A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
    • G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • 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
    • H03D3/18—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements
    • H03D3/20—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements producing pulses whose amplitude or duration depends on phase difference
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
JP13649979A 1978-10-24 1979-10-24 Radio wave receiver for signal modulated by signal sound Pending JPS5573149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7841679A GB2032737A (en) 1978-10-24 1978-10-24 Radio receiver for tone modulated signals

Publications (1)

Publication Number Publication Date
JPS5573149A true JPS5573149A (en) 1980-06-02

Family

ID=10500541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13649979A Pending JPS5573149A (en) 1978-10-24 1979-10-24 Radio wave receiver for signal modulated by signal sound

Country Status (6)

Country Link
US (1) US4254503A (ja)
JP (1) JPS5573149A (ja)
DE (1) DE2942512A1 (ja)
FR (1) FR2440124A1 (ja)
GB (1) GB2032737A (ja)
NL (1) NL7907712A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084052A (ja) * 1983-06-02 1985-05-13 エステイーシー・ピーエルシー 周波数偏移信号用復調論理装置
JPH01152845A (ja) * 1987-12-10 1989-06-15 Kokusai Electric Co Ltd Ｆｓｋ検波回路
JP2006261992A (ja) * 2005-03-16 2006-09-28 Fujitsu Ltd 受信装置

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2057820B (en) * 1979-09-04 1984-07-04 Standard Telephones Cables Ltd Radio receiver for fsk signals
GB2083977B (en) * 1980-08-26 1984-08-22 Standard Telephones Cables Ltd Single channel duplex radio system
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
DE3146077C2 (de) * 1981-11-20 1985-04-04 Siemens AG, 1000 Berlin und 8000 München Einrichtung für Funkempfänger zur Unterdrückung von durch Mehrwegeausbreitung bedingten Empfangsstörungen
GB2124840A (en) * 1982-07-02 1984-02-22 Philips Electronic Associated Data demodulator for digital signals
US4475219A (en) * 1982-08-18 1984-10-02 General Electric Company Demodulator for frequency-shift-keyed binary data signals
FR2538634B1 (fr) * 1982-12-24 1985-07-19 Int Standard Electric Corp Recepteur radio-electrique a conversion directe pour signaux modules en frequence
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
FR2559003B1 (fr) * 1984-01-31 1986-06-20 Lgt Lab Gen Telecomm Emetteur et son utilisation dans un reseau d'appel de personnes
NL8401347A (nl) * 1984-04-27 1985-11-18 Philips Nv Een fsk data ontvanger.
GB2189114B (en) * 1986-02-12 1990-03-14 Plessey Co Plc Radio receivers
US4811425A (en) * 1987-01-09 1989-03-07 Itt Avionics, A Division Of Itt Corporation Apparatus for reducing the effects of local oscillator leakage in mixers employed in zero IF receivers
US4761798A (en) * 1987-04-02 1988-08-02 Itt Aerospace Optical Baseband phase modulator apparatus employing digital techniques
DE3887204T2 (de) * 1987-05-27 1994-07-07 Fujitsu Ltd Digitales Zweirichtungsfunkübertragungssystem unter Verwendung einer einzigen Frequenz.
CA2014916C (en) * 1989-04-20 1994-11-08 Yoichiro Minami Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency
GB2233535A (en) * 1989-06-30 1991-01-09 Philips Electronic Associated Radio 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
US5345187A (en) * 1992-09-11 1994-09-06 Mcguire Ronald F Dual frequency demodulation apparatus for frequency shift keyed (FSK) data signals and FM signals and method therefor
US5333151A (en) * 1992-11-23 1994-07-26 Ford Motor Company High speed frequency-shift keying decoder
GB2283844B (en) * 1993-11-13 1997-06-11 Nokia Mobile Phones Ltd Detection of pager signal in FM radio transmission
US5469112A (en) * 1994-08-15 1995-11-21 Motorola, Inc. Communication device with zero-crossing demodulator
US5453715A (en) * 1994-08-15 1995-09-26 Motorola, Inc. Communication device with efficient multi-level digital demodulator
WO1996007234A1 (en) * 1994-08-26 1996-03-07 Motorola Inc. Communication device with efficient zero-crossing generator
DE59712313D1 (de) * 1996-03-02 2005-06-23 Philips Intellectual Property Erzeugung eines frequenzsteuersignals in einem fsk-empfänger
US5862466A (en) * 1997-01-09 1999-01-19 Hewlett-Packard Company Method and apparatus for automatically balancing a radio-frequency mixer
GB2328813B (en) * 1997-08-28 2001-08-29 Mitel Corp A radio frequency zero IF direct down converter
CA2281236C (en) 1999-09-01 2010-02-09 Tajinder Manku Direct conversion rf schemes using a virtually generated local oscillator
US6968019B2 (en) * 2000-11-27 2005-11-22 Broadcom Corporation IF FSK receiver
US20040157571A1 (en) * 2003-02-07 2004-08-12 Klaas Wortel Enhanced register based FSK demodulator
US7983643B2 (en) * 2008-07-03 2011-07-19 Panasonic Corporation Frequency demodulation with threshold extension
JP1686932S (ja) 2020-05-22 2021-05-31
JP1686862S (ja) 2020-05-22 2021-05-31
JP1677395S (ja) 2020-05-22 2021-01-25

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190495B (de) * 1964-05-29 1965-04-08 Telefunken Patent Schaltungsanordnung zur Demodulation frequenzumgetasteter Telegraphienachrichten
US3670242A (en) * 1969-12-03 1972-06-13 Lear Siegler Inc A selective paging receiver and decoder employing an electronic filter means
JPS5731716B2 (ja) * 1974-12-23 1982-07-06
DE2515769A1 (de) * 1975-04-10 1976-10-21 Standard Elektrik Lorenz Ag Frequenzselektiver signalempfaenger
GB1517121A (en) * 1977-01-13 1978-07-12 Standard Telephones Cables Ltd Radio receiver for fsk signals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084052A (ja) * 1983-06-02 1985-05-13 エステイーシー・ピーエルシー 周波数偏移信号用復調論理装置
JPH01152845A (ja) * 1987-12-10 1989-06-15 Kokusai Electric Co Ltd Ｆｓｋ検波回路
JP2006261992A (ja) * 2005-03-16 2006-09-28 Fujitsu Ltd 受信装置
JP4546295B2 (ja) * 2005-03-16 2010-09-15 富士通セミコンダクター株式会社 受信装置

Also Published As

Publication number Publication date
NL7907712A (nl) 1980-04-28
FR2440124B1 (ja) 1983-12-30
DE2942512A1 (de) 1980-05-08
FR2440124A1 (fr) 1980-05-23
US4254503A (en) 1981-03-03
GB2032737A (en) 1980-05-08

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