ES2147030T3 - Circuito sintetizador de frecuencias para estaciones moviles. - Google Patents
Circuito sintetizador de frecuencias para estaciones moviles.Info
- Publication number
- ES2147030T3 ES2147030T3 ES97947424T ES97947424T ES2147030T3 ES 2147030 T3 ES2147030 T3 ES 2147030T3 ES 97947424 T ES97947424 T ES 97947424T ES 97947424 T ES97947424 T ES 97947424T ES 2147030 T3 ES2147030 T3 ES 2147030T3
- Authority
- ES
- Spain
- Prior art keywords
- transmission
- decalated
- mobile station
- present
- frequency
- 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
- 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
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
- H03L7/185—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using a mixer in the loop
Abstract
EN GENERAL, EN LA PRESENTE INVENCION SE PRESENTA UN MECANISMO DE BAJO COSTE PARA REDUCIR EL TIEMPO DE ESTABILIZACION Y/O MEJORAR EL COMPORTAMIENTO DEL RUIDO DE FASE DE UN SINTETIZADOR DE FRECUENCIAS DE UNA ESTACION MOVIL. EN UNA REALIZACION (FIG. 7), CON LA PRESENTE INVENCION NO RESULTA NECESARIA LA UTILIZACION DE DOS SINTETIZADORES DECALADOS DE TRANSMISION (44 Y 52) (FIG. 5) EN UNA ESTACION MOVIL (100) (FIG. 6) QUE SEAN CAPACES DE FUNCIONAR A DOS BANDAS DE FRECUENCIA DIFERENTES CARACTERIZADA POR UNA SEPARACION DIFERENTE DE CANALES DE TRANSMISION-RECEPCION (TX-RX). SEGUN LA PRESENTE INVENCION, SE PUEDE PRESCINDIR DE UNO O DE LOS DOS SINTETIZADORES DECALADOS DE TRANSMISION (44 Y 52) DERIVANDO UNA SEÑAL DECALADA DE TRANSMISION APROPIADA DE UN SINTETIZADOR AUXILIAR (38) DE UNA ESTACION MOVIL (100) A TRAVES DE UN CIRCUITO RELATIVAMENTE SENCILLO Y ECONOMICO DE CAMBIO DE ESCALA DE FRECUENCIAS (EJ. UN DIVISOR O MULTIPLICADOR DE FRECUENCIAS) (130) Y UTILIZANDO UN SINTETIZADOR DE CANAL PRINCIPAL DEESTABILIZACION RAPIDA (140) PARA SALTAR ENTRE DOS FRECUENCIAS DIFERENTES CUANDO LA ESTACION MOVIL (100) PASA DE UN MODO DE TRANSMISION A UNO DE RECEPCION RESPECTIVAMENTE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/744,537 US6061575A (en) | 1996-11-06 | 1996-11-06 | Frequency synthesizer circuit for mobile stations |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2147030T3 true ES2147030T3 (es) | 2000-08-16 |
Family
ID=24993073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97947424T Expired - Lifetime ES2147030T3 (es) | 1996-11-06 | 1997-11-03 | Circuito sintetizador de frecuencias para estaciones moviles. |
Country Status (11)
Country | Link |
---|---|
US (1) | US6061575A (es) |
EP (1) | EP0937333B1 (es) |
JP (1) | JP2001503592A (es) |
KR (1) | KR100343341B1 (es) |
CN (1) | CN1135687C (es) |
AU (1) | AU725842B2 (es) |
BR (1) | BR9712888A (es) |
EE (1) | EE9900186A (es) |
ES (1) | ES2147030T3 (es) |
HK (1) | HK1023234A1 (es) |
WO (1) | WO1998031094A1 (es) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2320632B (en) | 1996-12-23 | 2001-09-05 | Nokia Mobile Phones Ltd | Method and apparatus for transmitting and receiving signals |
DE19747735C2 (de) * | 1997-10-29 | 2003-04-30 | Infineon Technologies Ag | Frequenzsynthesizer für ein Mobilfunkendgerät |
US6308048B1 (en) * | 1997-11-19 | 2001-10-23 | Ericsson Inc. | Simplified reference frequency distribution in a mobile phone |
US6308050B1 (en) * | 1998-03-23 | 2001-10-23 | Motorola, Inc. | Dual band mobile phone using the same intermediate frequency for both bands |
US6175724B1 (en) * | 1998-07-31 | 2001-01-16 | Motorola, Inc. | Band switchable injection oscillator and communication device using same |
FR2786342B1 (fr) * | 1998-08-28 | 2004-04-02 | Samsung Electronics Co Ltd | Synthetiseur de frequence et procede de saut de frequence double avec un temps de verrouillage rapide |
TW408525B (en) * | 1998-10-09 | 2000-10-11 | Ind Tech Res Inst | A transceiver device which could switch rapidly the receiving/transmitting mode |
US6278867B1 (en) * | 1998-11-25 | 2001-08-21 | Ericsson Inc. | Methods and systems for frequency generation for wireless devices |
US6484014B1 (en) * | 1999-03-22 | 2002-11-19 | Ericsson Inc. | Reduced component frequency plan architecture for dual band transceiver |
FI19991977A (fi) * | 1999-09-16 | 2001-03-16 | Nokia Networks Oy | Menetelmä ja laite signaalin tuottamiseksi |
US6553212B1 (en) * | 1999-11-01 | 2003-04-22 | Nokia Networks Oy | Method and apparatus for improving loop stability and speed of a power control loop |
US6643499B1 (en) * | 1999-12-22 | 2003-11-04 | Texas Instruments Incorporated | Apparatus and method for controlling a phase-locked loop circuit |
US6708044B1 (en) * | 2000-04-04 | 2004-03-16 | Nec America, Inc. | Apparatus and method for automated band selection via synthesizer bit insertion |
FI20001774A (fi) * | 2000-08-10 | 2002-02-11 | Nokia Networks Oy | Lähetinvastaanottimen testaaminen |
US6931237B2 (en) * | 2001-02-21 | 2005-08-16 | Asahi Kasei Microsystems Co., Ltd. | Communication device |
GB2376823B (en) * | 2001-06-20 | 2005-05-18 | Ericsson Telefon Ab L M | Communications device |
GB2383205B (en) * | 2001-12-14 | 2005-02-16 | Ifr Ltd | Low noise synthesiser |
US6833769B2 (en) * | 2003-03-21 | 2004-12-21 | Nokia Corporation | Voltage controlled capacitive elements having a biasing network |
US6816021B2 (en) * | 2002-08-27 | 2004-11-09 | Koninklijke Philips Electronics N.V. | Multiple band local oscillator frequency generation circuit |
US7747237B2 (en) * | 2004-04-09 | 2010-06-29 | Skyworks Solutions, Inc. | High agility frequency synthesizer phase-locked loop |
US7301404B2 (en) | 2005-07-21 | 2007-11-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for transceiver frequency synthesis |
US7899488B2 (en) * | 2006-07-31 | 2011-03-01 | Motorola Mobility, Inc. | Method and apparatus for extending network discovery range |
WO2013037100A1 (zh) * | 2011-09-13 | 2013-03-21 | 海能达通信股份有限公司 | 射频合成器和收发机 |
US9800439B2 (en) * | 2014-12-19 | 2017-10-24 | Intel Corporation | Apparatus and method for digital-to-time converter spur dithering |
US11079834B2 (en) | 2017-02-27 | 2021-08-03 | Ubilite, Inc. | Systems and methods for power management in low power communication device and system |
US10817045B2 (en) * | 2017-02-27 | 2020-10-27 | Ubilite, Inc. | Systems and methods for power management in low power communication device and system |
CN111106830B (zh) * | 2019-12-31 | 2022-12-23 | 陕西烽火电子股份有限公司 | 一种快速捷变的宽带频率合成器 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4360788A (en) * | 1980-07-14 | 1982-11-23 | John Fluke Mfg. Co., Inc. | Phase-locked loop frequency synthesizer |
JPS57125528A (en) * | 1981-01-28 | 1982-08-04 | Advantest Corp | Frequency synthesizer |
FI81933C (fi) * | 1989-05-18 | 1990-12-10 | Nokia Mobira Oy | Foerfarande foer alstring av frekvenser i en digital radiotelefon. |
US4972455A (en) * | 1989-06-23 | 1990-11-20 | Motorola, Inc. | Dual-bandwidth cellular telephone |
US5020093A (en) * | 1989-06-23 | 1991-05-28 | Motorola, Inc. | Cellular telephone operable on different cellular telephone systems |
US5020092A (en) * | 1989-06-23 | 1991-05-28 | Motorola, Inc. | Dual-bandwidth cellular telephone |
US5008925A (en) * | 1989-12-20 | 1991-04-16 | Motorola, Inc. | Cellular telephone responsive to service availability for operating on different cellular telephone systems |
US5175872A (en) * | 1991-03-28 | 1992-12-29 | Motorola, Inc. | Combined trunked/cellular communication unit |
US5146186A (en) * | 1991-05-13 | 1992-09-08 | Microsource, Inc. | Programmable-step, high-resolution frequency synthesizer which substantially eliminates spurious frequencies without adversely affecting phase noise |
FI91819C (fi) * | 1991-11-05 | 1994-08-10 | Nokia Mobile Phones Ltd | Menetelmä kahden eri taajuusalueella toimivan digitaalisen radiopuhelimen taajuuksien muodostamiseksi |
JPH06152467A (ja) * | 1992-11-06 | 1994-05-31 | Nec Corp | 無線通信機 |
JPH06216802A (ja) * | 1993-01-13 | 1994-08-05 | Kyocera Corp | 送受信装置 |
FR2707063B1 (es) * | 1993-06-25 | 1995-09-22 | Alcatel Mobile Comm France | |
US5406615A (en) * | 1993-08-04 | 1995-04-11 | At&T Corp. | Multi-band wireless radiotelephone operative in a plurality of air interface of differing wireless communications systems |
US5451910A (en) * | 1993-08-12 | 1995-09-19 | Northrop Grumman Corporation | Frequency synthesizer with comb spectrum mixer and fractional comb frequency offset |
US5511236A (en) * | 1993-12-07 | 1996-04-23 | National Semiconductor Corporation | Half duplex RF transceiver |
US5465409A (en) * | 1994-03-07 | 1995-11-07 | Motorola, Inc. | Radio architecture with dual frequency source selection |
FI941862A (fi) * | 1994-04-21 | 1995-10-22 | Nokia Mobile Phones Ltd | Menetelmä ja radiotaajuusjärjestelmä kahden eri taajuusalueella toimivan radioviestinjärjestelmän vastaanottimen ja lähettimen taajuuksien muodostamiseksi ja kahdella eri taajuusalueella toimiva vastaanotin ja lähetin sekä edellisten käyttö matkapuhelimessa |
US5511235A (en) * | 1994-05-02 | 1996-04-23 | Motorola, Inc. | Apparatus for detecting a signaling channel during scanning including a controlled frequency converter circuit and a controlled filter bandwidth, and a method therefor |
JP2586333B2 (ja) * | 1994-05-13 | 1997-02-26 | 日本電気株式会社 | 無線通信装置 |
WO1996002985A1 (fr) * | 1994-07-15 | 1996-02-01 | Ntt Mobile Communications Network Inc. | Systeme a acces selectif pour communication radiotelephonique |
US5535432A (en) * | 1994-09-14 | 1996-07-09 | Ericsson Ge Mobile Communications Inc. | Dual-mode satellite/cellular phone with a frequency synthesizer |
US5475677A (en) * | 1994-12-29 | 1995-12-12 | Bell Communications Research Inc. | Compatible licensed and unlicensed band portable handset unit for TDMA wireless communications system |
FI98420C (fi) * | 1995-01-24 | 1997-06-10 | Nokia Mobile Phones Ltd | Menetelmä ja kytkentä moduloidun signaalin muodostamiseksi lähetin/vastaanottimessa |
JPH08223071A (ja) * | 1995-02-08 | 1996-08-30 | Sony Corp | 送信機及び送受信機 |
US5822373A (en) * | 1995-08-17 | 1998-10-13 | Pittway Corporation | Method and apparatus for optimization of wireless communications |
US5732330A (en) * | 1996-07-02 | 1998-03-24 | Ericsson Inc. | Dual band transceiver |
-
1996
- 1996-11-06 US US08/744,537 patent/US6061575A/en not_active Expired - Lifetime
-
1997
- 1997-11-03 EP EP97947424A patent/EP0937333B1/en not_active Expired - Lifetime
- 1997-11-03 JP JP52495398A patent/JP2001503592A/ja not_active Ceased
- 1997-11-03 ES ES97947424T patent/ES2147030T3/es not_active Expired - Lifetime
- 1997-11-03 AU AU52509/98A patent/AU725842B2/en not_active Ceased
- 1997-11-03 KR KR1019997003927A patent/KR100343341B1/ko not_active IP Right Cessation
- 1997-11-03 EE EEP199900186A patent/EE9900186A/xx unknown
- 1997-11-03 WO PCT/US1997/020451 patent/WO1998031094A1/en active IP Right Grant
- 1997-11-03 CN CNB971994641A patent/CN1135687C/zh not_active Expired - Fee Related
- 1997-11-03 BR BR9712888-0A patent/BR9712888A/pt not_active IP Right Cessation
-
2000
- 2000-04-10 HK HK00102174A patent/HK1023234A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CN1236502A (zh) | 1999-11-24 |
KR20000068894A (ko) | 2000-11-25 |
EP0937333A1 (en) | 1999-08-25 |
CN1135687C (zh) | 2004-01-21 |
AU725842B2 (en) | 2000-10-19 |
AU5250998A (en) | 1998-08-03 |
KR100343341B1 (ko) | 2002-07-15 |
EP0937333B1 (en) | 2000-05-03 |
JP2001503592A (ja) | 2001-03-13 |
WO1998031094A1 (en) | 1998-07-16 |
EE9900186A (et) | 1999-12-15 |
HK1023234A1 (en) | 2000-09-01 |
BR9712888A (pt) | 2000-02-01 |
US6061575A (en) | 2000-05-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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