HK18588A - Radio receiver - Google Patents

Radio receiver

Info

Publication number
HK18588A
HK18588A HK185/88A HK18588A HK18588A HK 18588 A HK18588 A HK 18588A HK 185/88 A HK185/88 A HK 185/88A HK 18588 A HK18588 A HK 18588A HK 18588 A HK18588 A HK 18588A
Authority
HK
Hong Kong
Prior art keywords
radio receiver
receiver
radio
Prior art date
Application number
HK185/88A
Other languages
English (en)
Inventor
Ian Alistair Ward Vance
Original Assignee
Stc 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 Stc Plc filed Critical Stc Plc
Publication of HK18588A publication Critical patent/HK18588A/xx

Links

Classifications

    • 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
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/005—Analog to digital conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0052—Digital to analog conversion
    • 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
    • H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Communication Control (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
HK185/88A 1983-10-29 1988-03-10 Radio receiver HK18588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08328949A GB2149244B (en) 1983-10-29 1983-10-29 Digital demodulator arrangement for quadrature signals

Publications (1)

Publication Number Publication Date
HK18588A true HK18588A (en) 1988-03-18

Family

ID=10550943

Family Applications (1)

Application Number Title Priority Date Filing Date
HK185/88A HK18588A (en) 1983-10-29 1988-03-10 Radio receiver

Country Status (11)

Country Link
US (1) US4583239A (fr)
EP (1) EP0143539A3 (fr)
JP (1) JPS60112344A (fr)
AU (1) AU562232B2 (fr)
CA (1) CA1235754A (fr)
ES (1) ES8606963A1 (fr)
FI (1) FI79430C (fr)
GB (1) GB2149244B (fr)
HK (1) HK18588A (fr)
NO (1) NO844289L (fr)
NZ (1) NZ209885A (fr)

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GB2155262B (en) * 1984-03-01 1988-01-20 Standard Telephones Cables Ltd Radio receiver
US4731796A (en) * 1984-10-25 1988-03-15 Stc, Plc Multi-mode radio transceiver
GB2192506B (en) * 1986-07-12 1990-05-30 Stc Plc Demodulation circuit
US4825452A (en) * 1987-03-04 1989-04-25 National Semiconductor Corporation Digital FSK demodulator
EP0310796A1 (fr) * 1987-10-08 1989-04-12 BBC Brown Boveri AG Procédé de démodulation d'un signal FM
GB2215945A (en) * 1988-03-26 1989-09-27 Stc Plc Digital direct conversion radio
GB2219899A (en) * 1988-06-17 1989-12-20 Philips Electronic Associated A zero if receiver
GB2220315A (en) * 1988-07-01 1990-01-04 Philips Electronic Associated Signal amplitude-determining apparatus
US4910470A (en) * 1988-12-16 1990-03-20 Motorola, Inc. Digital automatic frequency control of pure sine waves
US5396520A (en) * 1992-07-29 1995-03-07 Dial Page Lp Digital RF receiver
GB9408759D0 (en) * 1994-05-03 1994-06-22 Texas Instruments Ltd Using high level cad tools to design application specific standard products for tv sound decoder systems
US5579347A (en) * 1994-12-28 1996-11-26 Telefonaktiebolaget Lm Ericsson Digitally compensated direct conversion receiver
EP0824782B1 (fr) * 1996-02-29 2001-10-24 Koninklijke Philips Electronics N.V. Recepteur pourvu d'un traitement numerique de signal d'entree divise en phases
US6035005A (en) * 1997-02-10 2000-03-07 Motorola, Inc. Receiver with baseband I and Q demodulator
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
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
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
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
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
US7027786B1 (en) 1998-10-21 2006-04-11 Parkervision, Inc. Carrier and clock recovery using universal frequency translation
US6061555A (en) * 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US7295826B1 (en) 1998-10-21 2007-11-13 Parkervision, Inc. Integrated frequency translation and selectivity with gain control functionality, and applications thereof
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
EP1014637B1 (fr) * 1998-12-23 2006-05-03 Asulab S.A. Récepteur à conversion directe pour signaux modulés en sauts de fréquence (FSK)
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US7006805B1 (en) 1999-01-22 2006-02-28 Parker Vision, Inc. Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
SE9900289D0 (sv) * 1999-01-27 1999-01-27 Ericsson Telefon Ab L M DC estimate method for a homodyne receiver
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
US6873836B1 (en) 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7110435B1 (en) 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
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
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7065162B1 (en) * 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7054296B1 (en) 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
US7072390B1 (en) 1999-08-04 2006-07-04 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
CA2281236C (fr) 1999-09-01 2010-02-09 Tajinder Manku Methodes rf de conversion directe au moyen d'un signal virtuel d'oscillateur local
US7082171B1 (en) 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US6963734B2 (en) 1999-12-22 2005-11-08 Parkervision, Inc. Differential frequency down-conversion using techniques of universal frequency translation technology
US7292835B2 (en) 2000-01-28 2007-11-06 Parkervision, Inc. Wireless and wired cable modem applications of universal frequency translation technology
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7554508B2 (en) 2000-06-09 2009-06-30 Parker Vision, Inc. Phased array antenna applications on universal frequency translation
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7010559B2 (en) 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
DE10138567A1 (de) * 2001-08-06 2003-03-06 Infineon Technologies Ag Demodulator und Demodulationsverfahren zur Demodulation von Empfangssignalen
US7085335B2 (en) 2001-11-09 2006-08-01 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7072427B2 (en) * 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US6975848B2 (en) 2002-06-04 2005-12-13 Parkervision, Inc. Method and apparatus for DC offset removal in a radio frequency communication channel
US7321640B2 (en) 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
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
TWI280690B (en) * 2003-03-18 2007-05-01 Tdk Corp Electronic device for wireless communications and reflector device for wireless communication cards
FR2873517B1 (fr) * 2004-07-20 2006-11-17 Eads Telecom Soc Par Actions S Procede et dispositif de conversion analoguique numerique avec correction de symetrie
FR2878667B1 (fr) * 2004-11-29 2007-08-24 Eads Telecom Soc Par Actions S Procede et dispositif de conversion analogique numerique avec correction de dissymetrie
US7760833B1 (en) 2005-02-17 2010-07-20 Analog Devices, Inc. Quadrature demodulation with phase shift
US7650084B2 (en) * 2005-09-27 2010-01-19 Alcatel-Lucent Usa Inc. Optical heterodyne receiver and method of extracting data from a phase-modulated input optical signal

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609555A (en) * 1967-07-19 1971-09-28 Ibm Digital fm receiver
US4090145A (en) * 1969-03-24 1978-05-16 Webb Joseph A Digital quadrature demodulator
US3701948A (en) * 1970-09-17 1972-10-31 North American Rockwell System for phase locking on a virtual carrier
GB1450989A (en) * 1974-03-05 1976-09-29 Standard Telephones Cables Ltd Analogue to digital converter
US3953805A (en) * 1974-11-07 1976-04-27 Texas Instruments Incorporated DC component suppression in zero CF IF systems
US4057759A (en) * 1976-06-23 1977-11-08 Gte Sylvania Incorporated Communication receiving apparatus
NL8102595A (nl) * 1981-05-27 1982-12-16 Philips Nv Ontvanger voor hoekgemoduleerde draaggolfsignalen.
GB2106734B (en) * 1981-09-15 1986-01-15 Standard Telephones Cables Ltd Radio receiver
US4509017A (en) * 1981-09-28 1985-04-02 E-Systems, Inc. Method and apparatus for pulse angle modulation

Also Published As

Publication number Publication date
US4583239A (en) 1986-04-15
AU562232B2 (en) 1987-06-04
EP0143539A2 (fr) 1985-06-05
GB2149244B (en) 1987-01-21
FI844092A0 (fi) 1984-10-17
EP0143539A3 (fr) 1987-06-24
FI79430C (fi) 1989-12-11
NO844289L (no) 1985-04-30
AU3444484A (en) 1985-05-02
GB8328949D0 (en) 1983-11-30
GB2149244A (en) 1985-06-05
CA1235754A (fr) 1988-04-26
FI844092L (fi) 1985-04-30
ES537156A0 (es) 1986-05-16
FI79430B (fi) 1989-08-31
JPS60112344A (ja) 1985-06-18
NZ209885A (en) 1988-07-28
ES8606963A1 (es) 1986-05-16

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