DE69017077T2 - Verfahren zur Erzeugung der Frequenzen eines digitalen Funktelefons. - Google Patents
Verfahren zur Erzeugung der Frequenzen eines digitalen Funktelefons.Info
- Publication number
- DE69017077T2 DE69017077T2 DE69017077T DE69017077T DE69017077T2 DE 69017077 T2 DE69017077 T2 DE 69017077T2 DE 69017077 T DE69017077 T DE 69017077T DE 69017077 T DE69017077 T DE 69017077T DE 69017077 T2 DE69017077 T2 DE 69017077T2
- Authority
- DE
- Germany
- Prior art keywords
- radio telephone
- frequencies
- digital radio
- generating
- synthesiser
- 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 - Lifetime
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)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Transceivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Mobile Radio Communication Systems (AREA)
- Lead Frames For Integrated Circuits (AREA)
Applications Claiming Priority (1)
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. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69017077D1 DE69017077D1 (de) | 1995-03-30 |
DE69017077T2 true DE69017077T2 (de) | 1995-09-14 |
Family
ID=8528460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69017077T Expired - Lifetime DE69017077T2 (de) | 1989-05-18 | 1990-05-16 | Verfahren zur Erzeugung der Frequenzen eines digitalen Funktelefons. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0398688B1 (de) |
AT (1) | ATE118931T1 (de) |
DE (1) | DE69017077T2 (de) |
FI (1) | FI81933C (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19963647A1 (de) * | 1999-12-29 | 2001-07-19 | Becker Gmbh | Mischeranordnung |
Families Citing this family (15)
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 |
FI102798B1 (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 |
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 |
DE60138269D1 (de) | 2000-02-28 | 2009-05-20 | Thomson Licensing | Architektur für schnurlose telefone |
Family Cites Families (5)
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 |
US4147984A (en) * | 1977-04-27 | 1979-04-03 | Texas Instruments Incorporated | Dual digital processor transceiver |
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 |
-
1989
- 1989-05-18 FI FI892405A patent/FI81933C/fi not_active IP Right Cessation
-
1990
- 1990-05-16 EP EP90305298A patent/EP0398688B1/de not_active Expired - Lifetime
- 1990-05-16 DE DE69017077T patent/DE69017077T2/de not_active Expired - Lifetime
- 1990-05-16 AT AT90305298T patent/ATE118931T1/de not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19963647A1 (de) * | 1999-12-29 | 2001-07-19 | Becker Gmbh | Mischeranordnung |
DE19963647B4 (de) * | 1999-12-29 | 2006-09-14 | Harman Becker Automotive Systems (Becker Division) Gmbh | Mischeranordnung |
Also Published As
Publication number | Publication date |
---|---|
FI892405A0 (fi) | 1989-05-18 |
EP0398688A3 (de) | 1991-03-27 |
FI81933B (fi) | 1990-08-31 |
EP0398688B1 (de) | 1995-02-22 |
ATE118931T1 (de) | 1995-03-15 |
FI81933C (fi) | 1990-12-10 |
EP0398688A2 (de) | 1990-11-22 |
DE69017077D1 (de) | 1995-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |