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FI892405A0 - Foerfarande foer alstring av frekvenser i en digital radiotelefon. - Google Patents

Foerfarande foer alstring av frekvenser i en digital radiotelefon.

Info

Publication number
FI892405A0
FI892405A0 FI892405A FI892405A FI892405A0 FI 892405 A0 FI892405 A0 FI 892405A0 FI 892405 A FI892405 A FI 892405A FI 892405 A FI892405 A FI 892405A FI 892405 A0 FI892405 A0 FI 892405A0
Authority
FI
Finland
Prior art keywords
radio telephone
digital
radiotelefon
frekvenser
foerfarande foer
Prior art date
Application number
FI892405A
Other languages
English (en)
Other versions
FI81933B (fi
FI81933C (fi
Inventor
Raimo Ikonen
Pekka Lonka
Pekka Mikkola
Original Assignee
Nokia Mobira Oy
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 Mobira Oy filed Critical Nokia Mobira Oy
Priority to FI892405A priority Critical patent/FI81933C/fi
Publication of FI892405A0 publication Critical patent/FI892405A0/fi
Priority to AT90305298T priority patent/ATE118931T1/de
Priority to EP90305298A priority patent/EP0398688B1/en
Priority to DE69017077T priority patent/DE69017077T2/de
Publication of FI81933B publication Critical patent/FI81933B/fi
Application granted granted Critical
Publication of FI81933C publication Critical patent/FI81933C/fi
Priority to US07/875,545 priority patent/US5291474A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • 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)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Lead Frames For Integrated Circuits (AREA)
FI892405A 1989-05-18 1989-05-18 Foerfarande foer alstring av frekvenser i en digital radiotelefon. FI81933C (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI892405A FI81933C (fi) 1989-05-18 1989-05-18 Foerfarande foer alstring av frekvenser i en digital radiotelefon.
AT90305298T ATE118931T1 (de) 1989-05-18 1990-05-16 Verfahren zur erzeugung der frequenzen eines digitalen funktelefons.
EP90305298A EP0398688B1 (en) 1989-05-18 1990-05-16 Procedure for forming frequencies of a digital radio telephone
DE69017077T DE69017077T2 (de) 1989-05-18 1990-05-16 Verfahren zur Erzeugung der Frequenzen eines digitalen Funktelefons.
US07/875,545 US5291474A (en) 1989-05-18 1992-04-27 Procedure for forming frequencies of a digital radio telephone

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI892405 1989-05-18
FI892405A FI81933C (fi) 1989-05-18 1989-05-18 Foerfarande foer alstring av frekvenser i en digital radiotelefon.

Publications (3)

Publication Number Publication Date
FI892405A0 true FI892405A0 (fi) 1989-05-18
FI81933B FI81933B (fi) 1990-08-31
FI81933C FI81933C (fi) 1990-12-10

Family

ID=8528460

Family Applications (1)

Application Number Title Priority Date Filing Date
FI892405A FI81933C (fi) 1989-05-18 1989-05-18 Foerfarande foer alstring av frekvenser i en digital radiotelefon.

Country Status (4)

Country Link
EP (1) EP0398688B1 (fi)
AT (1) ATE118931T1 (fi)
DE (1) DE69017077T2 (fi)
FI (1) FI81933C (fi)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940007469B1 (ko) * 1991-05-23 1994-08-18 삼성전자 주식회사 이동 무선전화기에 있어서 주파수 소스회로
JP2998296B2 (ja) * 1991-05-31 2000-01-11 日本電気株式会社 ディジタル無線通信装置
DE4121830A1 (de) * 1991-07-02 1993-01-07 Bosch Gmbh Robert Frequenzaufbereitungsschaltung fuer funkgeraete
FI91819C (fi) * 1991-11-05 1994-08-10 Nokia Mobile Phones Ltd Menetelmä kahden eri taajuusalueella toimivan digitaalisen radiopuhelimen taajuuksien muodostamiseksi
JPH05227054A (ja) * 1992-02-15 1993-09-03 Mitsubishi Electric Corp 無線機
FI102798B (fi) * 1992-07-28 1999-02-15 Nokia Mobile Phones Ltd Digitaalisen matkapuhelimen radiotaajuusosan piirijärjestely
GB2272605B (en) * 1992-11-11 1996-11-27 Nokia Mobile Phones Uk Radio frequency circuit for a time division multiple access system
JP3358183B2 (ja) * 1993-04-09 2002-12-16 ソニー株式会社 時分割多重送受信装置
DE59408452D1 (de) * 1993-04-13 1999-08-12 Siemens Ag Sender-/Empfängeranordnung für höhere Frequenzen
JPH0715371A (ja) * 1993-06-25 1995-01-17 Nec Corp スーパーへテロダイン方式の送受信方法と送受信機
DE4341435A1 (de) * 1993-12-04 1995-06-08 Bosch Gmbh Robert Funkgerät
GB2346023A (en) * 1995-09-08 2000-07-26 Motorola Israel Ltd Frequency modulation radio
EP0865693A1 (en) * 1995-12-04 1998-09-23 Advanced Micro Devices, Inc. System and method for frequency division duplex/time division duplex radio frequency communications
US6061575A (en) * 1996-11-06 2000-05-09 Ericsson Inc. Frequency synthesizer circuit for mobile stations
FR2779294A1 (fr) * 1998-05-29 1999-12-03 Thomson Multimedia Sa Dispositif d'emission/reception de signaux
DE19963647B4 (de) * 1999-12-29 2006-09-14 Harman Becker Automotive Systems (Becker Division) Gmbh Mischeranordnung
MXPA02008348A (es) 2000-02-28 2002-12-13 Thomson Licensing Sa Arquitectura para telefonos inalambricos.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344110A (en) * 1976-10-05 1978-04-20 Saibanetsuto Kougiyou Kk System for synchronizing and synthesizing frequency of radio transmitter*receiver
US4140975A (en) * 1977-04-27 1979-02-20 Texas Instruments Incorporated Highly selective programmable filter module
JPS5599851A (en) * 1979-01-24 1980-07-30 Hitachi Ltd Mobile data reception system
US4489413A (en) * 1982-07-19 1984-12-18 M/A-Com Dcc, Inc. Apparatus for controlling the receive and transmit frequency of a transceiver
US4476575A (en) * 1982-12-13 1984-10-09 General Electric Company Radio transceiver

Also Published As

Publication number Publication date
DE69017077T2 (de) 1995-09-14
ATE118931T1 (de) 1995-03-15
FI81933B (fi) 1990-08-31
FI81933C (fi) 1990-12-10
EP0398688A3 (en) 1991-03-27
DE69017077D1 (de) 1995-03-30
EP0398688A2 (en) 1990-11-22
EP0398688B1 (en) 1995-02-22

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: NOKIA-MOBIRA OY