ES2004164A6 - Sistema radiotelefonico para comunicar senales de informacion por un canal de frecuencia asignada - Google Patents
Sistema radiotelefonico para comunicar senales de informacion por un canal de frecuencia asignadaInfo
- Publication number
- ES2004164A6 ES2004164A6 ES8603225A ES8603225A ES2004164A6 ES 2004164 A6 ES2004164 A6 ES 2004164A6 ES 8603225 A ES8603225 A ES 8603225A ES 8603225 A ES8603225 A ES 8603225A ES 2004164 A6 ES2004164 A6 ES 2004164A6
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- signal
- phase
- locked loop
- assignable
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
-
- 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
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
-
- 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
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Superheterodyne Receivers (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
SISTEMA RADIOTELEFONICO PARA COMUNICAR SEÑALES DE INFORMACION POR UN CANAL DE FRECUENCIA ASIGNADA, COMBINANDO UN SINTETIZADOR PARA GENERAL LA SEÑAL CON UNA MEMORIA DE LECTURA SOLAMENTE (ROM), COMPRENDIENDO EL SINTETIZADOR DOS CIRCUITOS DE FASE EN LOS QUE CADA UNO PRESENTA UN OSCILADOR CONTROLADO POR VOLTAJE (VCO), UN MEZCLADOR PARA MEZCLAR LA SEÑAL DE SALIDA PROCEDENTE DEL PRIMER (VCO), UN FILTRO DE PASO BAJO, UN COMPRADOR DE FASES, UN FILTRO DE PASO DE BANDA Y UN DIVISOR DE FRECUENCIA ACOPLADO A LA ROM. EL PRIMER CIRCUITO DE FASE GENERA UNA SEÑAL DE SALIDA A UNA FRECUENCIA DETERMINADA Y UNA SEGUNDA SEÑAL CON FRECUENCIA DENTRO DE UNA GAMA DETERMINADA Y DERIVADA DEL SEGUNDO CIRCUITO DE FASE. ESTE SEGUNDO CIRCUITO, GENERA UNA TERCERA SEÑAL DENTRO DE UNA GAMA DETERMINADA, EN RESPUESTA A LA PROCEDENTE DEL ROM Y UNA CUARTA SEÑAL, Y UN DIVISOR DE FRECUENCIA ACOPLADO AL ROM. CADFA CIRCUITO COMPRENDE UN FILTRO PARA MINIMIZAR RUIDO DE FASE Y ELECTRONICO DEBIDO A LA MICROFONIA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/840,908 US4785260A (en) | 1986-03-18 | 1986-03-18 | Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2004164A6 true ES2004164A6 (es) | 1988-12-16 |
Family
ID=25283546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8603225A Expired ES2004164A6 (es) | 1986-03-18 | 1986-11-28 | Sistema radiotelefonico para comunicar senales de informacion por un canal de frecuencia asignada |
Country Status (26)
Country | Link |
---|---|
US (1) | US4785260A (es) |
JP (1) | JPH0785537B2 (es) |
KR (1) | KR900002695B1 (es) |
CN (1) | CN1007397B (es) |
AT (1) | AT400787B (es) |
AU (1) | AU570859B2 (es) |
BE (1) | BE905821A (es) |
BR (1) | BR8701214A (es) |
CA (1) | CA1257337A (es) |
CH (1) | CH671661A5 (es) |
DE (1) | DE3640555C2 (es) |
DK (1) | DK175646B1 (es) |
ES (1) | ES2004164A6 (es) |
FI (1) | FI90608C (es) |
FR (1) | FR2597684B1 (es) |
GB (1) | GB2188201B (es) |
HK (1) | HK66290A (es) |
IL (1) | IL80496A (es) |
IN (1) | IN169257B (es) |
IT (1) | IT1205753B (es) |
MX (1) | MX164954B (es) |
MY (1) | MY101551A (es) |
NL (1) | NL8700646A (es) |
NO (1) | NO864619L (es) |
SE (1) | SE467902B (es) |
SG (1) | SG11590G (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2060536A1 (es) * | 1992-11-30 | 1994-11-16 | Alcatel Standard Electrica | Sintetizador de frecuencias. |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4862107A (en) * | 1986-03-18 | 1989-08-29 | International Mobile Machines Corporation | Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels |
US4825448A (en) * | 1986-08-07 | 1989-04-25 | International Mobile Machines Corporation | Subscriber unit for wireless digital telephone system |
DE3914990A1 (de) * | 1989-05-06 | 1990-11-08 | Ako Werke Gmbh & Co | Strahlungsheizeinrichtung |
FI895068A0 (fi) * | 1989-10-25 | 1989-10-25 | Telenokia Oy | Frekvenssyntetisator. |
JP2864143B2 (ja) * | 1990-03-20 | 1999-03-03 | 富士通株式会社 | 信号検出回路 |
KR930008433B1 (ko) * | 1991-05-15 | 1993-08-31 | 금성일렉트론 주식회사 | 듀얼 위상동기 루프의 락 검출장치 |
US5144254A (en) * | 1991-09-30 | 1992-09-01 | Wilke William G | Dual synthesizer including programmable counters which are controlled by means of calculated input controls |
US5301366A (en) * | 1992-04-07 | 1994-04-05 | Rockwell International Corporation | High performance frequency tuning with low cost synthesizer |
US5317284A (en) * | 1993-02-08 | 1994-05-31 | Hughes Aircraft Company | Wide band, low noise, fine step tuning, phase locked loop frequency synthesizer |
US5317285A (en) * | 1993-02-26 | 1994-05-31 | Motorola, Inc. | Frequency synthesizer employing a continuously adaptive phase detector and method |
US5354893A (en) * | 1993-07-30 | 1994-10-11 | The University Of Delaware | CMS/SiO2 /Al2 O3 catalysts for improved selectivity in the synthesis of amines from methanol and/or dimethyl ether and ammonia |
JP3000360U (ja) * | 1994-01-21 | 1994-08-09 | 株式会社船井電機研究所 | 通信機器用基準信号生成回路 |
FR2745138B1 (fr) * | 1996-02-16 | 1998-05-07 | Thomson Multimedia Sa | Dispositif de correction de bruit de phase dans un recepteur numerique |
DE19747735C2 (de) * | 1997-10-29 | 2003-04-30 | Infineon Technologies Ag | Frequenzsynthesizer für ein Mobilfunkendgerät |
FR2791213B1 (fr) * | 1999-03-16 | 2001-05-25 | Sagem | Dispositif et procede d'emission dans un telephone mobile |
US8705680B2 (en) * | 2006-06-29 | 2014-04-22 | Nippon Telegraph And Telephone Corporation | CDR circuit |
FR2913151A1 (fr) * | 2007-06-26 | 2008-08-29 | Thomson Licensing Sas | Procede de limitation des perturbations dues a la microphonie dans le dispositifs d'emission reception radio frequence |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3435367A (en) * | 1967-08-24 | 1969-03-25 | Bendix Corp | Digitally controlled frequency synthesizer |
US3546617A (en) * | 1968-11-26 | 1970-12-08 | Rca Corp | Digital frequency synthesizer |
GB1303631A (es) * | 1969-03-01 | 1973-01-17 | ||
NL163396C (nl) * | 1974-04-22 | 1980-08-15 | Philips Nv | Meerkanaalgenerator. |
JPS527613A (en) * | 1975-07-09 | 1977-01-20 | Oki Electric Ind Co Ltd | Afc system |
JPS5254356A (en) * | 1975-10-30 | 1977-05-02 | Toshiba Corp | Pahse-synchronized variable frequency oscillator |
JPS5358A (en) * | 1976-06-24 | 1978-01-05 | Yaesu Musen Kk | Fast responding pll oscillating circuit |
DE2741351C2 (de) * | 1977-09-14 | 1983-12-08 | Wandel & Goltermann Gmbh & Co, 7412 Eningen | Digital einstellbarer Frequenzerzeuger mit mehreren Oszillatoren |
FR2412981A1 (fr) * | 1977-12-23 | 1979-07-20 | Adret Electronique | Synthetiseur de frequence a boucles multiples d'asservissement de phase, agence de facon a eviter toute discontinuite de frequence ou d'amplitude dans une large gamme de variation de frequence |
GB2045556B (en) * | 1979-03-06 | 1983-08-03 | Racal Dana Instr Ltd | Frequency synthesizers |
US4234929A (en) * | 1979-09-24 | 1980-11-18 | Harris Corporation | Control device for a phase lock loop vernier frequency synthesizer |
GB2079552B (en) * | 1980-07-02 | 1984-02-01 | Philips Electronic Associated | Double phase lock loop |
JPS5854740A (ja) * | 1981-09-28 | 1983-03-31 | Nec Corp | 周波数シンセサイザ |
JPS58189632U (ja) * | 1982-06-11 | 1983-12-16 | アイコム株式会社 | 周波数シンセサイザ |
US4511859A (en) * | 1982-08-30 | 1985-04-16 | At&T Bell Laboratories | Apparatus for generating a common output signal as a function of any of a plurality of diverse input signals |
US4551689A (en) * | 1983-02-25 | 1985-11-05 | Comtech Telecommunications Corp. | RF Local oscillator with low phase noise |
-
1986
- 1986-03-18 US US06/840,908 patent/US4785260A/en not_active Expired - Lifetime
- 1986-10-21 AU AU64298/86A patent/AU570859B2/en not_active Expired
- 1986-10-23 IN IN940/DEL/86A patent/IN169257B/en unknown
- 1986-10-31 SE SE8604662A patent/SE467902B/sv not_active IP Right Cessation
- 1986-11-04 IL IL80496A patent/IL80496A/xx not_active IP Right Cessation
- 1986-11-17 GB GB8627430A patent/GB2188201B/en not_active Expired
- 1986-11-17 KR KR1019860009709A patent/KR900002695B1/ko not_active IP Right Cessation
- 1986-11-19 NO NO864619A patent/NO864619L/no unknown
- 1986-11-20 FR FR8616165A patent/FR2597684B1/fr not_active Expired - Lifetime
- 1986-11-21 CH CH4673/86A patent/CH671661A5/fr not_active IP Right Cessation
- 1986-11-27 BE BE0/217461A patent/BE905821A/fr not_active IP Right Cessation
- 1986-11-27 DE DE3640555A patent/DE3640555C2/de not_active Revoked
- 1986-11-28 ES ES8603225A patent/ES2004164A6/es not_active Expired
- 1986-12-02 FI FI864927A patent/FI90608C/fi not_active IP Right Cessation
-
1987
- 1987-01-06 MX MX4869A patent/MX164954B/es unknown
- 1987-01-07 CA CA000526878A patent/CA1257337A/en not_active Expired
- 1987-02-19 AT AT0036487A patent/AT400787B/de not_active IP Right Cessation
- 1987-03-13 DK DK198701287A patent/DK175646B1/da not_active IP Right Cessation
- 1987-03-16 IT IT47728/87A patent/IT1205753B/it active
- 1987-03-16 MY MYPI87000304A patent/MY101551A/en unknown
- 1987-03-17 BR BR8701214A patent/BR8701214A/pt unknown
- 1987-03-17 JP JP62060262A patent/JPH0785537B2/ja not_active Expired - Lifetime
- 1987-03-18 CN CN87101989A patent/CN1007397B/zh not_active Expired
- 1987-03-18 NL NL8700646A patent/NL8700646A/nl not_active Application Discontinuation
-
1990
- 1990-02-19 SG SG115/90A patent/SG11590G/en unknown
- 1990-08-23 HK HK662/90A patent/HK66290A/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2060536A1 (es) * | 1992-11-30 | 1994-11-16 | Alcatel Standard Electrica | Sintetizador de frecuencias. |
Also Published As
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2006-11-28 |
|
FD1A | Patent lapsed |
Effective date: 20061129 |