FI914181A - En universalsyntetisator foer radiotelefon - Google Patents

En universalsyntetisator foer radiotelefon Download PDF

Info

Publication number
FI914181A
FI914181A FI914181A FI914181A FI914181A FI 914181 A FI914181 A FI 914181A FI 914181 A FI914181 A FI 914181A FI 914181 A FI914181 A FI 914181A FI 914181 A FI914181 A FI 914181A
Authority
FI
Finland
Prior art keywords
universalsyntetisator
radiotelefon
foer
universalsyntetisator foer
foer radiotelefon
Prior art date
Application number
FI914181A
Other languages
English (en)
Other versions
FI914181A0 (fi
FI89845C (fi
FI89845B (fi
Inventor
Jarmo Juhani Heinonen
Original Assignee
Nokia Mobile Phones 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
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI914181A priority Critical patent/FI89845C/fi
Publication of FI914181A0 publication Critical patent/FI914181A0/fi
Priority to US07/934,927 priority patent/US5301367A/en
Priority to EP92307770A priority patent/EP0535800B1/en
Priority to DE69223373T priority patent/DE69223373T2/de
Priority to JP23594392A priority patent/JP3200184B2/ja
Publication of FI914181A publication Critical patent/FI914181A/fi
Application granted granted Critical
Publication of FI89845B publication Critical patent/FI89845B/fi
Publication of FI89845C publication Critical patent/FI89845C/fi

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
FI914181A 1991-09-04 1991-09-04 Koppling foer alstring av saendningssignal i en radiotelefon FI89845C (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI914181A FI89845C (fi) 1991-09-04 1991-09-04 Koppling foer alstring av saendningssignal i en radiotelefon
US07/934,927 US5301367A (en) 1991-09-04 1992-08-25 Direct digital synthesizer for producing a modulated intermediate frequency in a radio apparatus
EP92307770A EP0535800B1 (en) 1991-09-04 1992-08-26 General-purpose synthesizer for a radio apparatus
DE69223373T DE69223373T2 (de) 1991-09-04 1992-08-26 Universeller Synthesizer für ein Funkgerät
JP23594392A JP3200184B2 (ja) 1991-09-04 1992-09-03 無線装置用のシンセサイザ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI914181A FI89845C (fi) 1991-09-04 1991-09-04 Koppling foer alstring av saendningssignal i en radiotelefon
FI914181 1991-09-04

Publications (4)

Publication Number Publication Date
FI914181A0 FI914181A0 (fi) 1991-09-04
FI914181A true FI914181A (fi) 1993-03-05
FI89845B FI89845B (fi) 1993-08-13
FI89845C FI89845C (fi) 1993-11-25

Family

ID=8533075

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914181A FI89845C (fi) 1991-09-04 1991-09-04 Koppling foer alstring av saendningssignal i en radiotelefon

Country Status (5)

Country Link
US (1) US5301367A (fi)
EP (1) EP0535800B1 (fi)
JP (1) JP3200184B2 (fi)
DE (1) DE69223373T2 (fi)
FI (1) FI89845C (fi)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89845C (fi) * 1991-09-04 1993-11-25 Nokia Mobile Phones Ltd Koppling foer alstring av saendningssignal i en radiotelefon
GB2272605B (en) * 1992-11-11 1996-11-27 Nokia Mobile Phones Uk Radio frequency circuit for a time division multiple access system
US5631920A (en) * 1993-11-29 1997-05-20 Lexmark International, Inc. Spread spectrum clock generator
US5488627A (en) * 1993-11-29 1996-01-30 Lexmark International, Inc. Spread spectrum clock generator and associated method
FI105247B (fi) * 1994-11-14 2000-06-30 Nokia Mobile Phones Ltd Menetelmä ja kytkentä radiopuhelimen taajuuksien muodostamiseksi
FI98330C (fi) 1994-12-15 1997-05-26 Nokia Mobile Phones Ltd UHF-syntesoija
FI98420C (fi) * 1995-01-24 1997-06-10 Nokia Mobile Phones Ltd Menetelmä ja kytkentä moduloidun signaalin muodostamiseksi lähetin/vastaanottimessa
KR960038686A (ko) * 1995-04-13 1996-11-21 김광호 단일 주파수에 의한 신호 송수신회로
FI951918A (fi) * 1995-04-21 1996-10-22 Nokia Mobile Phones Ltd Lähetin-vastaanotinlaite ja menetelmä kompleksien I/Q-signaalin synnyttämiseksi ja käsittelemiseksi
FI101505B1 (fi) * 1995-05-10 1998-06-30 Nokia Mobile Phones Ltd Menetelmä suuntakytkimellä toteutetun tehonmittauksen parantamiseksi pienillä tehotasoilla
US5995812A (en) * 1995-09-01 1999-11-30 Hughes Electronics Corporation VSAT frequency source using direct digital synthesizer
US6097765A (en) * 1995-09-05 2000-08-01 Hughes Electronics Corporation Method and apparatus for performing digital fractional minimum shift key modulation for a very small aperture terminal
FI100285B (fi) * 1995-12-11 1997-10-31 Nokia Mobile Phones Ltd Taajuudenmuodostuspiiri
FI106328B (fi) 1996-02-08 2001-01-15 Nokia Mobile Phones Ltd Menetelmä ja piirijärjestely vastaanotetun signaalin käsittelemiseksi
FI104924B (fi) * 1996-02-29 2000-04-28 Nokia Mobile Phones Ltd Lähetinvastaanotin, jossa on vaihdettava taajuusalue ja kaistanleveys
FI961143A (fi) * 1996-03-12 1997-09-13 Nokia Mobile Phones Ltd Menetelmä ja piirijärjestely vastaanotettujen signaalien käsittelemiseksi tiedonsiirtojärjestelmässä
GB2311194B (en) * 1996-03-12 2000-05-31 Nokia Mobile Phones Ltd Transmitting and receiving radio signals
US5787362A (en) * 1996-07-08 1998-07-28 Nokia Mobile Phones Limited AM removal from FM signal generated by IQ modulator
US5794159A (en) * 1996-08-07 1998-08-11 Nokia Mobile Phones Limited Dual band mobile station employing cross-connected transmitter and receiver circuits
US5768691A (en) * 1996-08-07 1998-06-16 Nokia Mobile Phones Limited Antenna switching circuits for radio telephones
US5784413A (en) * 1996-09-06 1998-07-21 General Instrument Corporation Direct digital synthesis frequency-agile QPSK modulator
GB2320633B (en) * 1996-12-17 2000-12-27 Motorola Gmbh Frequency generating circuit and method of operation
GB2320629B (en) * 1996-12-23 2001-04-25 Nokia Mobile Phones Ltd A radio transmitter and phase locked loop therefor
GB2320632B (en) 1996-12-23 2001-09-05 Nokia Mobile Phones Ltd Method and apparatus for transmitting and receiving signals
GB2320631B (en) 1996-12-23 2001-07-18 Nokia Mobile Phones Ltd Radio receiver and radio transmitter
DE19700249A1 (de) * 1997-01-07 1998-07-09 Helmut Meier Vorrichtung für die Erzeugung und/oder den Empfang eines modulierten Funksignals
FI108486B (fi) * 1997-01-31 2002-01-31 Nokia Corp Menetelmõ ja piirijõrjestely vastaanotettujen signaalien kõsittelemiseksi tiedonsiirtojõrjestelmõssõ
US5974305A (en) 1997-05-15 1999-10-26 Nokia Mobile Phones Limited Dual band architectures for mobile stations
US6125266A (en) * 1997-12-31 2000-09-26 Nokia Mobile Phones Limited Dual band architectures for mobile stations having transmitter linearization feedback
US6321075B1 (en) 1998-07-30 2001-11-20 Qualcomm Incorporated Hardware-efficient transceiver with delta-sigma digital-to-analog converter
DE50000423D1 (de) 1999-03-12 2002-10-02 Siemens Ag Sendeempfänger
US6448831B1 (en) 2001-06-12 2002-09-10 Rf Micro Devices, Inc. True single-phase flip-flop
US6779010B2 (en) 2001-06-12 2004-08-17 Rf Micro Devices, Inc. Accumulator with programmable full-scale range
US6693468B2 (en) 2001-06-12 2004-02-17 Rf Micro Devices, Inc. Fractional-N synthesizer with improved noise performance
US6385276B1 (en) 2001-06-12 2002-05-07 Rf Micro Devices, Inc. Dual-modulus prescaler
US7003049B2 (en) * 2001-06-12 2006-02-21 Rf Micro Devices, Inc. Fractional-N digital modulation with analog IQ interface
JP2003110434A (ja) * 2001-09-28 2003-04-11 Alps Electric Co Ltd 送信レベル設定方法
US7302237B2 (en) * 2002-07-23 2007-11-27 Mercury Computer Systems, Inc. Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis
US20040121747A1 (en) * 2002-12-24 2004-06-24 Sy-Kang Shen Kit of a local oscillator of an airborne VHF multimode communication transceiver
TWI452836B (zh) * 2004-04-01 2014-09-11 St Ericsson Sa 正交電壓控制振盪器系統與方法
US7180384B2 (en) * 2005-05-23 2007-02-20 Analog Devices, Inc. Universal signal modulators
US7933561B2 (en) * 2006-12-11 2011-04-26 Apple Inc. Wireless communications circuitry with simultaneous receive capabilities for handheld electronic devices
US7818029B2 (en) * 2007-04-11 2010-10-19 Apple Inc. Wireless communications circuitry with antenna sharing capabilities for handheld electronic devices
GB2459312A (en) * 2008-04-19 2009-10-21 Peter Henry Saul Non-Heterodyne Frequency Converter which uses a Direct Digital Synthesiser
EP3105850B1 (en) * 2014-02-10 2022-11-30 Clairvoyant Technology LLC Polar transmitter for an rfid reader
US9590644B2 (en) 2015-02-06 2017-03-07 Silicon Laboratories Inc. Managing spurs in a radio frequency circuit
US10461787B2 (en) 2018-01-30 2019-10-29 Silicon Laboratories Inc. Spur mitigation for pulse output drivers in radio frequency (RF) devices

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
JPS54127209A (en) * 1978-03-27 1979-10-03 Hitachi Denshi Ltd Structure system of radio equipment
US4449250A (en) * 1981-12-21 1984-05-15 Motorola, Inc. Radio-frequency synthesizer for duplex radios
US4792939A (en) * 1986-01-24 1988-12-20 Hitachi Denshi Kabushiki Kaisha Duplex radio communication transceiver
US4878035A (en) * 1988-05-27 1989-10-31 Wavetek Rf Products, Inc. Hybrid frequency shift keying modulator and method
US5008900A (en) * 1989-08-14 1991-04-16 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
AU6643790A (en) * 1989-11-09 1991-06-13 Roger Reed Digital circuit for a frequency modulation and carrier synthesis in a digital radio system
US5010585A (en) * 1990-06-01 1991-04-23 Garcia Rafael A Digital data and analog radio frequency transmitter
US5045817A (en) * 1990-09-07 1991-09-03 John Fluke Mfg. Co., Inc. FM deviation control of direct digital synthesizers
US5111162A (en) * 1991-05-03 1992-05-05 Motorola, Inc. Digital frequency synthesizer having AFC and modulation applied to frequency divider
FI89845C (fi) * 1991-09-04 1993-11-25 Nokia Mobile Phones Ltd Koppling foer alstring av saendningssignal i en radiotelefon

Also Published As

Publication number Publication date
DE69223373D1 (de) 1998-01-15
EP0535800A2 (en) 1993-04-07
US5301367A (en) 1994-04-05
EP0535800A3 (en) 1993-08-11
DE69223373T2 (de) 1998-04-09
FI914181A0 (fi) 1991-09-04
JP3200184B2 (ja) 2001-08-20
FI89845C (fi) 1993-11-25
EP0535800B1 (en) 1997-12-03
JPH07235838A (ja) 1995-09-05
FI89845B (fi) 1993-08-13

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