DE3871880T2 - Fsk-diskriminator. - Google Patents

Fsk-diskriminator.

Info

Publication number
DE3871880T2
DE3871880T2 DE8888307727T DE3871880T DE3871880T2 DE 3871880 T2 DE3871880 T2 DE 3871880T2 DE 8888307727 T DE8888307727 T DE 8888307727T DE 3871880 T DE3871880 T DE 3871880T DE 3871880 T2 DE3871880 T2 DE 3871880T2
Authority
DE
Germany
Prior art keywords
filters
pair
impulse response
accepting
channel
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
DE8888307727T
Other languages
English (en)
Other versions
DE3871880D1 (de
Inventor
Patrick Michael Hughes
Martin Christopher Hall
Larry Frederick Lind
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of DE3871880D1 publication Critical patent/DE3871880D1/de
Publication of DE3871880T2 publication Critical patent/DE3871880T2/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
DE8888307727T 1987-08-21 1988-08-19 Fsk-diskriminator. Expired - Fee Related DE3871880T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878719849A GB8719849D0 (en) 1987-08-21 1987-08-21 Fsk discriminator

Publications (2)

Publication Number Publication Date
DE3871880D1 DE3871880D1 (de) 1992-07-16
DE3871880T2 true DE3871880T2 (de) 1993-01-14

Family

ID=10622647

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888307727T Expired - Fee Related DE3871880T2 (de) 1987-08-21 1988-08-19 Fsk-diskriminator.

Country Status (14)

Country Link
US (1) US5065409A (de)
EP (1) EP0305125B1 (de)
JP (1) JP2910855B2 (de)
AT (1) ATE77188T1 (de)
AU (1) AU615475B2 (de)
CA (1) CA1336445C (de)
DE (1) DE3871880T2 (de)
DK (1) DK194489D0 (de)
ES (1) ES2033438T3 (de)
GB (1) GB8719849D0 (de)
GR (1) GR3005339T3 (de)
HK (1) HK129096A (de)
IE (1) IE61886B1 (de)
WO (1) WO1989001726A1 (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234336C1 (de) * 1992-10-12 1993-10-21 Ant Nachrichtentech Demodulator für FSK-Signale
DE4234337C1 (de) * 1992-10-12 1993-12-23 Ant Nachrichtentech Demodulator für FSK-Signale
DE19614979C2 (de) 1995-04-20 2001-05-17 Fujitsu Ltd Hochfrequenz-Sende-Empfangs-Vorrichtung zur Datenkommunikation
US5748036A (en) * 1996-07-30 1998-05-05 United Microelectronics Corporation Non-coherent digital FSK demodulator
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
EP1014637B1 (de) * 1998-12-23 2006-05-03 Asulab S.A. Direktmischempfänger für FSK-modulierte Signale
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US6785347B1 (en) * 1999-04-22 2004-08-31 3Com Corporation Nonlinear-least squares based method and apparatus for FSK signal decoding
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
FR2815211A1 (fr) * 2000-10-11 2002-04-12 Satellite Terminal Access Dispositif de filtrage a reponse impulsionnelle finie a coefficients periodiques
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7672356B2 (en) 2005-05-19 2010-03-02 Itt Manufacturing Enterprises, Inc. Method and apparatus for detection of a frequency coded sequence in the presence of sinusoidal interference
EP2469783B1 (de) * 2010-12-23 2017-12-13 The Swatch Group Research and Development Ltd. FSK-Funksignalempfänger mit hochempfindlichem Demodulator, sowie Verfahren zum Betrieb des Empfängers
US11515863B2 (en) * 2021-03-08 2022-11-29 Rohde & Schwarz Gmbh & Co. Kg Comb signal generator and method of providing a phase and amplitude reference

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803501A (en) * 1972-11-17 1974-04-09 Ibm Frequency discriminator using digital non-recursive filters
US4437068A (en) * 1981-02-19 1984-03-13 Thomson-Csf FSK Demodulator for frequency-modulation modem
US4479092A (en) * 1981-11-20 1984-10-23 At&T Bell Laboratories Digital frequency-shift keyed demodulator
US4475219A (en) * 1982-08-18 1984-10-02 General Electric Company Demodulator for frequency-shift-keyed binary data signals
US4568882A (en) * 1984-10-01 1986-02-04 National Semiconductor Corporation Digital FSK demodulator circuit
DE3674096D1 (de) * 1985-07-03 1990-10-18 Siemens Ag Digitale filterweiche, insbesondere fuer einen datenempfaenger.
US4755761A (en) * 1986-06-26 1988-07-05 General Electric Company Zero intermediate-frequency demodulator

Also Published As

Publication number Publication date
IE882558L (en) 1989-02-21
WO1989001726A1 (en) 1989-02-23
AU2256988A (en) 1989-03-09
US5065409A (en) 1991-11-12
AU615475B2 (en) 1991-10-03
ATE77188T1 (de) 1992-06-15
JPH02501181A (ja) 1990-04-19
IE61886B1 (en) 1994-11-30
DK194489A (da) 1989-04-20
EP0305125B1 (de) 1992-06-10
DE3871880D1 (de) 1992-07-16
HK129096A (en) 1996-07-26
DK194489D0 (da) 1989-04-20
ES2033438T3 (es) 1993-03-16
EP0305125A1 (de) 1989-03-01
JP2910855B2 (ja) 1999-06-23
GB8719849D0 (en) 1987-09-30
CA1336445C (en) 1995-07-25
GR3005339T3 (de) 1993-05-24

Similar Documents

Publication Publication Date Title
ATE77188T1 (de) Fsk-diskriminator.
US4726041A (en) Digital filter switch for data receiver
ES2022829B3 (es) Compensador de interferencia de despolarizacion adaptable
TW373375B (en) Receiver for M-ary FSK signals
RU2099892C1 (ru) Способ демодуляции сигналов с относительной фазовой модуляцией и устройство для его осуществления
RU95108154A (ru) Корреляционный приемник сигналов с относительной фазовой модуляцией
JPS5757051A (en) Fm stereo receiver
DE3788779D1 (de) Digitales, nicht-rekursives Filter mit Multiplizierkoeffizienten der Basis zwei.
SU1365366A1 (ru) Демодул тор сигналов с фазоразностной модул цией
SU819983A1 (ru) Демодул тор фазоманипулированныхСигНАлОВ
SU1053321A1 (ru) Демодул тор сигналов с фазоразностной модул цией второго пор дка
SU1525935A1 (ru) Квадратичный приемник двоичных частотно-манипулированных сигналов
SU1282352A1 (ru) Устройство дл приема сигналов с комбинированной частотной и относительно-фазовой манипул цией
SU1113904A1 (ru) Устройство дл приема сигналов с комбинированной частотной и относительной фазовой манипул цией
SU788428A1 (ru) Устройство дл квазикогерентной демодул ции сложных фазоманипулированных псевдослучайных сигналов
RU1811642C (ru) Частотный демодул тор
SU1197138A1 (ru) Устройство демодул ции фазоманипулированных сигналов
SU886285A1 (ru) Устройство интегрального приема дискретных сигналов
SU409396A1 (ru) Устройство выделения границ посылок фазоманипулированного сигнала
SU746954A1 (ru) Коррел тор дл многоканального приемника взаимноортогональных сигналов
SU1753618A1 (ru) Приемник сигналов трехкратной фазовой манипул ции
SU1195298A1 (ru) Устройство контрол синхронизма
SU1336261A1 (ru) Многоканальна система св зи
SU1381684A1 (ru) Синхронный демодул тор
Tuzov et al. Noncoherent correlation filtering of complex signals

Legal Events

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