FI915220A - Förfarande för alstring av frekvenser för två på olika frekvensområden fungerande digitala radiotelefoner - Google Patents
Förfarande för alstring av frekvenser för två på olika frekvensområden fungerande digitala radiotelefoner Download PDFInfo
- Publication number
- FI915220A FI915220A FI915220A FI915220A FI915220A FI 915220 A FI915220 A FI 915220A FI 915220 A FI915220 A FI 915220A FI 915220 A FI915220 A FI 915220A FI 915220 A FI915220 A FI 915220A
- Authority
- FI
- Finland
- Prior art keywords
- procedure
- different frequency
- frequency ranges
- digital radio
- radio telephones
- Prior art date
Links
Classifications
-
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
-
- 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
- H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
-
- 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
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
- H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Transceivers (AREA)
- Superheterodyne Receivers (AREA)
- Transmitters (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI915220A FI91819C (sv) | 1991-11-05 | 1991-11-05 | Förfarande för alstring av frekvenser för två på olika frekvensområden fungerande digitala radiotelefoner |
DE69221427T DE69221427T2 (de) | 1991-11-05 | 1992-10-30 | Verfahren zur Erzeugung verschiedener Frequenzen eines digitalen Funktelefons |
EP92309973A EP0541305B1 (en) | 1991-11-05 | 1992-10-30 | A method to generate different frequency signals in a digital radio telephone |
CA002082099A CA2082099A1 (en) | 1991-11-05 | 1992-11-04 | Method to generate frequencies in a digital radiotelephone operating on two different frequency bands |
JP29574392A JP3311794B2 (ja) | 1991-11-05 | 1992-11-05 | デジタル無線電話機において異なる周波数の信号を発生する方法 |
US08/221,537 US5519885A (en) | 1991-11-05 | 1994-03-31 | Method to generate different frequency signals in a digital radio telephone |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI915220A FI91819C (sv) | 1991-11-05 | 1991-11-05 | Förfarande för alstring av frekvenser för två på olika frekvensområden fungerande digitala radiotelefoner |
FI915220 | 1991-11-05 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI915220A0 FI915220A0 (sv) | 1991-11-05 |
FI915220A true FI915220A (sv) | 1993-05-06 |
FI91819B FI91819B (sv) | 1994-04-29 |
FI91819C FI91819C (sv) | 1994-08-10 |
Family
ID=8533433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI915220A FI91819C (sv) | 1991-11-05 | 1991-11-05 | Förfarande för alstring av frekvenser för två på olika frekvensområden fungerande digitala radiotelefoner |
Country Status (6)
Country | Link |
---|---|
US (1) | US5519885A (sv) |
EP (1) | EP0541305B1 (sv) |
JP (1) | JP3311794B2 (sv) |
CA (1) | CA2082099A1 (sv) |
DE (1) | DE69221427T2 (sv) |
FI (1) | FI91819C (sv) |
Families Citing this family (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI102798B1 (sv) * | 1992-07-28 | 1999-02-15 | Nokia Mobile Phones Ltd | Kretsanordning i radiofrekvensdelen i en digital mobiltelefon |
DE59408452D1 (de) * | 1993-04-13 | 1999-08-12 | Siemens Ag | Sender-/Empfängeranordnung für höhere Frequenzen |
DE4338721A1 (de) * | 1993-11-12 | 1995-05-18 | Philips Patentverwaltung | Mehrband-Funkgerät |
FI935271A (sv) * | 1993-11-26 | 1995-05-27 | Nokia Mobile Phones Ltd | Foerfarande och kretsanordning foer realisering av mellanfrekvenssignaler i radiofrekvensdelen i en digital mobiltelefon |
DE4341435A1 (de) * | 1993-12-04 | 1995-06-08 | Bosch Gmbh Robert | Funkgerät |
JPH07177054A (ja) * | 1993-12-21 | 1995-07-14 | Hitachi Ltd | ディジタル無線通信端末 |
DE19509567A1 (de) * | 1994-04-21 | 1995-10-26 | Philips Patentverwaltung | Hochfrequenz-Empfangsstufe |
FI941862A (sv) * | 1994-04-21 | 1995-10-22 | Nokia Mobile Phones Ltd | Förfarande och radiofrekvenssystem för alstring av frekvenser för mottagare och sändare av två på olika fraksvensområden fungerande radiosignaleringssystem och en mottagare och sändare som fungerar på två olika frekvensområden samt användning av föregående i en mobiltelefon |
JP2586333B2 (ja) * | 1994-05-13 | 1997-02-26 | 日本電気株式会社 | 無線通信装置 |
JPH07321728A (ja) * | 1994-05-23 | 1995-12-08 | Nec Corp | アンテナ装置 |
FI98330C (sv) * | 1994-12-15 | 1997-05-26 | Nokia Mobile Phones Ltd | UHF-syntetisator |
FI98420C (sv) * | 1995-01-24 | 1997-06-10 | Nokia Mobile Phones Ltd | Förfarande och koppling att alstra en modulerad signal i en sändare/mottagare |
JPH08223071A (ja) * | 1995-02-08 | 1996-08-30 | Sony Corp | 送信機及び送受信機 |
FI951918A (sv) * | 1995-04-21 | 1996-10-22 | Nokia Mobile Phones Ltd | Sändar-mottagaranordning och förfarande för alstring och behandling av en komplex I/Q-signal |
JP3070442B2 (ja) * | 1995-05-24 | 2000-07-31 | 日本電気株式会社 | ディジタル変復調回路 |
JPH09172384A (ja) * | 1995-12-19 | 1997-06-30 | Sony Corp | Amラジオ放送の受信装置 |
FR2742946B1 (fr) * | 1995-12-22 | 1998-01-16 | Alcatel Mobile Comm France | Terminal de radiocommunication multimode |
KR100193836B1 (ko) * | 1995-12-29 | 1999-06-15 | 윤종용 | 감소된 위상동기루프를 가지는 디지털 무선통신시스템 및 그 동기화 방법 |
FI106328B (sv) | 1996-02-08 | 2001-01-15 | Nokia Mobile Phones Ltd | Förfarande och kretsanordning för att behandla en mottagen signal |
GB2310342A (en) | 1996-02-16 | 1997-08-20 | Northern Telecom Ltd | Dual mode radio transceiver front end |
FI104924B (sv) * | 1996-02-29 | 2000-04-28 | Nokia Mobile Phones Ltd | En sändare-mottagare med växelbar frekvensband och bandbredd |
FI961143A (sv) * | 1996-03-12 | 1997-09-13 | Nokia Mobile Phones Ltd | Förfarande och kretsanordning för behandling av mottagna signaler i ett kommunikationssystem |
FI112133B (sv) * | 1996-03-29 | 2003-10-31 | Nokia Corp | Förfarande för bildande av frekveriserna hos ett på två olika frekvensområden fungerande radiokommunikationssystems direktomvandlingssändare /mottagare och en direktomvandlingssändare/mottagare till ett på två olika frekvensområden fungerande radiokommunikationssystem samt användning av de föregående i ett mobiltelefon |
US5732330A (en) * | 1996-07-02 | 1998-03-24 | Ericsson Inc. | Dual band transceiver |
US5787362A (en) * | 1996-07-08 | 1998-07-28 | Nokia Mobile Phones Limited | AM removal from FM signal generated by IQ modulator |
US5768691A (en) * | 1996-08-07 | 1998-06-16 | Nokia Mobile Phones Limited | Antenna switching circuits for radio telephones |
US5794159A (en) * | 1996-08-07 | 1998-08-11 | Nokia Mobile Phones Limited | Dual band mobile station employing cross-connected transmitter and receiver circuits |
JPH1098409A (ja) * | 1996-09-20 | 1998-04-14 | Matsushita Electric Ind Co Ltd | 無線回路 |
SE507527C2 (sv) * | 1996-10-11 | 1998-06-15 | Ericsson Telefon Ab L M | Flerbandsmottagare som genererar en mellanfrekvens som är gemensam för de olika frekvensbanden, och förfarande för densamma |
US6061575A (en) * | 1996-11-06 | 2000-05-09 | Ericsson Inc. | Frequency synthesizer circuit for mobile stations |
US5960364A (en) * | 1996-11-08 | 1999-09-28 | Ericsson Inc. | Satellite/cellular phone using different channel spacings on forward and return links |
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 |
US6232369B1 (en) * | 1996-12-27 | 2001-05-15 | E. I. Du Pont De Nemours And Company | Ink jet inks containing hydrosols as polymer additives |
KR19980057483A (ko) * | 1996-12-30 | 1998-09-25 | 김광호 | 셀룰라 휴대폰에서 듀얼 밴드 송수신 장치 |
FI108486B (sv) * | 1997-01-31 | 2002-01-31 | Nokia Corp | F÷rfarande och kretsanordning f÷r behandling av mottagna signaler i ett kommunikationssystem |
DE69834875T2 (de) * | 1997-03-12 | 2007-01-11 | Koninklijke Philips Electronics N.V. | Frequenzumsetzungsschaltung |
US5963852A (en) * | 1997-03-24 | 1999-10-05 | Ericsson Inc. | Dual band mobile station |
US5974302A (en) * | 1997-03-24 | 1999-10-26 | Lucent Technologies Inc. | Dual band cellular/PCS transceiver |
US5974305A (en) * | 1997-05-15 | 1999-10-26 | Nokia Mobile Phones Limited | Dual band architectures for mobile stations |
US6308048B1 (en) | 1997-11-19 | 2001-10-23 | Ericsson Inc. | Simplified reference frequency distribution in a mobile phone |
WO1999030420A1 (en) * | 1997-12-05 | 1999-06-17 | Koninklijke Philips Electronics N.V. | A communication system, a communication device and a frequency synthesizer |
US6125266A (en) * | 1997-12-31 | 2000-09-26 | Nokia Mobile Phones Limited | Dual band architectures for mobile stations having transmitter linearization feedback |
DE19805963C2 (de) * | 1998-02-13 | 2001-02-22 | Siemens Ag | Integrierbare Schaltung zur Frequenzaufbereitung eines im UHF-Bereich arbeitenden Funk-Sende-Empfängers, insbesondere eines Schnurlostelefons |
US6308050B1 (en) * | 1998-03-23 | 2001-10-23 | Motorola, Inc. | Dual band mobile phone using the same intermediate frequency for both bands |
US6208875B1 (en) * | 1998-04-08 | 2001-03-27 | Conexant Systems, Inc. | RF architecture for cellular dual-band telephones |
JP3389945B2 (ja) * | 1998-06-18 | 2003-03-24 | 日本電気株式会社 | デュアルバンド送受信回路 |
US6175724B1 (en) * | 1998-07-31 | 2001-01-16 | Motorola, Inc. | Band switchable injection oscillator and communication device using same |
TW408525B (en) * | 1998-10-09 | 2000-10-11 | Ind Tech Res Inst | A transceiver device which could switch rapidly the receiving/transmitting mode |
FI112741B (sv) * | 1998-11-26 | 2003-12-31 | Nokia Corp | Förfarande och anordning för att sända och mottaga RF-signaler vid olika radiogränssnitt av dataöverföringssystem |
US6484014B1 (en) * | 1999-03-22 | 2002-11-19 | Ericsson Inc. | Reduced component frequency plan architecture for dual band transceiver |
JP3603995B2 (ja) * | 1999-03-31 | 2004-12-22 | シャープ株式会社 | 高周波無線通信装置 |
US6516184B1 (en) * | 1999-08-31 | 2003-02-04 | Skyworks Solutions, Inc. | Multi-band transceiver having multi-slot capability |
US6678503B1 (en) | 2000-05-17 | 2004-01-13 | Intersil Americas Inc. | Apparatus for radio frequency processing with dual modulus synthesizer |
US6405022B1 (en) * | 2000-05-17 | 2002-06-11 | Intersil Americas Inc. | Apparatus for radio frequency processing with single oscillator for intermediate frequency processing |
DE102005061219A1 (de) * | 2005-12-20 | 2007-06-21 | Fachhochschule Aachen | Anordnung einer Funkübertagungsstrecke |
KR100838521B1 (ko) * | 2006-12-05 | 2008-06-17 | 전자부품연구원 | 무선 통신용 디지털 중간 주파수 송신기 |
US8229352B2 (en) * | 2007-07-05 | 2012-07-24 | Sibeam, Inc. | Wireless architecture for 60GHZ |
FR2943477A1 (fr) * | 2009-03-17 | 2010-09-24 | Thales Sa | Dispositif de pilotage en frequence pour emetteur/recepteur de telecommande satellite,emetteur recepteur associes |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51117813A (en) * | 1975-04-09 | 1976-10-16 | Shintou Denki Kk | Transmitter to prevent radiation of abnormal electric wave |
JPS54102814A (en) * | 1978-01-30 | 1979-08-13 | Sony Corp | Synthesizer receiver |
CA1194128A (en) * | 1982-05-25 | 1985-09-24 | Skyswitch Satellite Communications Co. | Satellite ground station |
US4476575A (en) * | 1982-12-13 | 1984-10-09 | General Electric Company | Radio transceiver |
IN165870B (sv) * | 1985-06-25 | 1990-02-03 | Siemens Ag | |
US4703520A (en) * | 1986-10-31 | 1987-10-27 | Motorola, Inc. | Radio transceiver having an adaptive reference oscillator |
US4969210A (en) * | 1988-02-10 | 1990-11-06 | Motorola, Inc. | Two-way radio having a PLL |
JP2560093B2 (ja) * | 1988-10-05 | 1996-12-04 | シャープ株式会社 | Fmチューナ |
FI81933C (sv) * | 1989-05-18 | 1990-12-10 | Nokia Mobira Oy | Förfarande för alstring av frekvenser i en digital radiotelefon |
GB2236454A (en) * | 1989-09-01 | 1991-04-03 | Philips Electronic Associated | Communications system for radio telephones |
US5142551A (en) * | 1991-02-28 | 1992-08-25 | Motorola, Inc. | Signal weighting system for digital receiver |
-
1991
- 1991-11-05 FI FI915220A patent/FI91819C/sv active
-
1992
- 1992-10-30 EP EP92309973A patent/EP0541305B1/en not_active Expired - Lifetime
- 1992-10-30 DE DE69221427T patent/DE69221427T2/de not_active Expired - Fee Related
- 1992-11-04 CA CA002082099A patent/CA2082099A1/en not_active Abandoned
- 1992-11-05 JP JP29574392A patent/JP3311794B2/ja not_active Expired - Fee Related
-
1994
- 1994-03-31 US US08/221,537 patent/US5519885A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI91819B (sv) | 1994-04-29 |
JPH07221667A (ja) | 1995-08-18 |
EP0541305B1 (en) | 1997-08-06 |
DE69221427D1 (de) | 1997-09-11 |
JP3311794B2 (ja) | 2002-08-05 |
FI915220A0 (sv) | 1991-11-05 |
US5519885A (en) | 1996-05-21 |
DE69221427T2 (de) | 1998-01-22 |
FI91819C (sv) | 1994-08-10 |
EP0541305A1 (en) | 1993-05-12 |
CA2082099A1 (en) | 1993-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application |