ES2121952T3 - Aparato de modulacion de codificacion por desplazamiento de frecuencia. - Google Patents
Aparato de modulacion de codificacion por desplazamiento de frecuencia.Info
- Publication number
- ES2121952T3 ES2121952T3 ES93306289T ES93306289T ES2121952T3 ES 2121952 T3 ES2121952 T3 ES 2121952T3 ES 93306289 T ES93306289 T ES 93306289T ES 93306289 T ES93306289 T ES 93306289T ES 2121952 T3 ES2121952 T3 ES 2121952T3
- Authority
- ES
- Spain
- Prior art keywords
- voltage
- oscillator
- controlled
- locked loop
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/12—Modulator circuits; Transmitter circuits
Abstract
UN APARATO DE MODULACION FSK QUE TIENE UNA CARACTERISTICA DE FRECUENCIA FIJA Y LIBRE DE INTERFERENCIA DE SIMBOLOS Y, POR CONSIGUIENTE, FACTIBLE PARA UN SISTEMA DE COMUNICACIONES DE DATOS DE ALTA VELOCIDAD, SE OBTIENE MEDIANTE EL USO DE TRES OSCILADORES CONTROLADOS POR VOLTAJE (11, 21, 7), QUE TIENEN LAS MISMAS CARACTERISTICAS. EL PRIMER OSCILADOR (11) CONTROLADO POR VOLTAJE ESTA EN UNA DISPOSICION (1) DE BUCLE BLOQUEADO DE PRIMERA FASE, OPERANDO PARA GENERAR UNA FRECUENCIA DE ESPACIOS O BLANCOS. EL SEGUNDO OSCILADOR (21) CONTROLADO POR VOLTAJE ESTA EN UNA DISPOSICION DE BUCLE BLOQUEADO DE SEGUNDA FASE, OPERANDO UNA FRECUENCIA DE MARCAS O 1. EL TERCER OSCILADOR (7) CONTROLADO POR VOLTAJE SE USA PARA OBTENER UNA SEÑAL DE SALIDA MODULADA FSK. NADA MAS CAMBIAR LOS DATOS DE ENTRADA DE ESPACIO A MARCA, UN VOLTAJE DE CONTROL PARA UNA DISPOSICION (1 O 2) DE BUCLE BLOQUEADO DE FASE, ASOCIADO CON LA FRECUENCIA RESULTANTE, SE ENCAMINA A TRAVES DE UN FILTRO (5) DE PASO BAJO, QUE TIENE UNA CARACTERISTICA DE RETARDO DE GRUPO PLANO AL TERCER OSCILADOR (7) CONTROLADO POR VOLTAJE. EN EL TRANSCURSO DE UN PERIODO PREVIAMENTE DETERMINADO DE TIEMPO, EL TERCER OSCILADOR (7) CONTROLADO POR VOLTAJE SE CONECTA, EN VEZ DEL OSCILADOR (11, 21) CONTROLADO POR VOLTAJE DE LA DISPOSICION DE BUCLE DE BLOQUEO DE FASE CITADO ANTERIORMENTE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4215881A JP2760225B2 (ja) | 1992-08-13 | 1992-08-13 | Fsk変調器 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2121952T3 true ES2121952T3 (es) | 1998-12-16 |
Family
ID=16679808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93306289T Expired - Lifetime ES2121952T3 (es) | 1992-08-13 | 1993-08-10 | Aparato de modulacion de codificacion por desplazamiento de frecuencia. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5434888A (es) |
EP (1) | EP0584996B1 (es) |
JP (1) | JP2760225B2 (es) |
ES (1) | ES2121952T3 (es) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5815525A (en) | 1991-05-13 | 1998-09-29 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5796772A (en) | 1991-05-13 | 1998-08-18 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5790587A (en) | 1991-05-13 | 1998-08-04 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5694414A (en) | 1991-05-13 | 1997-12-02 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5887020A (en) | 1991-05-13 | 1999-03-23 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
DE4336239A1 (de) * | 1993-10-23 | 1995-04-27 | Sel Alcatel Ag | Schaltungsanordnung für einen Taktgenerator |
US6005856A (en) | 1993-11-01 | 1999-12-21 | Omnipoint Corporation | Communication protocol for spread spectrum wireless communication system |
US6088590A (en) | 1993-11-01 | 2000-07-11 | Omnipoint Corporation | Method and system for mobile controlled handoff and link maintenance in spread spectrum communication |
WO1995012945A1 (en) | 1993-11-01 | 1995-05-11 | Omnipoint Corporation | Despreading/demodulating direct sequence spread spectrum signals |
US5659574A (en) | 1994-09-09 | 1997-08-19 | Omnipoint Corporation | Multi-bit correlation of continuous phase modulated signals |
US5757847A (en) | 1994-09-09 | 1998-05-26 | Omnipoint Corporation | Method and apparatus for decoding a phase encoded signal |
US5680414A (en) | 1994-09-09 | 1997-10-21 | Omnipoint Corporation | Synchronization apparatus and method for spread spectrum receiver |
US5953370A (en) | 1994-09-09 | 1999-09-14 | Omnipoint Corporation | Apparatus for receiving and correlating a spread spectrum signal |
US5754584A (en) | 1994-09-09 | 1998-05-19 | Omnipoint Corporation | Non-coherent spread-spectrum continuous-phase modulation communication system |
US5692007A (en) | 1994-09-09 | 1997-11-25 | Omnipoint Corporation | Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation |
US5754585A (en) | 1994-09-09 | 1998-05-19 | Omnipoint Corporation | Method and apparatus for serial noncoherent correlation of a spread spectrum signal |
US5881100A (en) | 1994-09-09 | 1999-03-09 | Omnipoint Corporation | Method and apparatus for coherent correlation of a spread spectrum signal |
US5963586A (en) | 1994-09-09 | 1999-10-05 | Omnipoint Corporation | Method and apparatus for parallel noncoherent correlation of a spread spectrum signal |
US6020733A (en) * | 1994-12-22 | 2000-02-01 | Anritsu Company | Two port handheld vector network analyzer with frequency monitor mode |
US5642039A (en) * | 1994-12-22 | 1997-06-24 | Wiltron Company | Handheld vector network analyzer |
US5627499A (en) * | 1995-10-13 | 1997-05-06 | Pacific Communication Sciences, Inc. | Digital modulator and upconverter having single-bit delta-sigma data converters |
KR100193812B1 (ko) * | 1995-12-26 | 1999-06-15 | 윤종용 | 2레벨/4레벨 주파수 쉬프트키잉 변조방식 구현 회로 |
US5977779A (en) * | 1997-10-24 | 1999-11-02 | Anritsu Company | Handheld vecor network analyzer (VNA) operating at a high frequency by mixing LO and RF signals having offset odd harmonics |
US6418174B1 (en) | 1999-02-19 | 2002-07-09 | Rf Micro Devices, Inc. | Frequency shift key modulator |
US6211740B1 (en) * | 1999-09-29 | 2001-04-03 | Intel Corporation | Switching a clocked device from an initial frequency to a target frequency |
JP3605023B2 (ja) * | 2000-10-05 | 2004-12-22 | 山形日本電気株式会社 | クロック生成回路 |
GB2377101B (en) * | 2001-06-29 | 2005-03-16 | Motorola Inc | Circuits for use in radio communications |
US7747237B2 (en) * | 2004-04-09 | 2010-06-29 | Skyworks Solutions, Inc. | High agility frequency synthesizer phase-locked loop |
US8050359B2 (en) * | 2007-04-12 | 2011-11-01 | Harris Corporation | Continuously variable phase frequency shift keying |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3993868A (en) * | 1974-08-19 | 1976-11-23 | Rca Corporation | Minimum shift keying communication system |
US4500857A (en) * | 1983-02-24 | 1985-02-19 | The United States Of America As Represented By The Secretary Of The Army | Frequency modulated phase locked loop |
JPS6096029A (ja) * | 1983-10-31 | 1985-05-29 | Anritsu Corp | 信号発生器 |
DE3341688A1 (de) * | 1983-11-18 | 1985-05-30 | Robert Bosch Gmbh, 7000 Stuttgart | Datenmodulator mit einer pll-schaltung |
US4628286A (en) * | 1985-04-17 | 1986-12-09 | Rca Corporation | Digital frequency modulator |
GB8801259D0 (en) * | 1988-01-20 | 1988-02-17 | Secr Defence | Digital modulator |
JPH04320137A (ja) * | 1991-04-19 | 1992-11-10 | Nec Corp | 多値周波数シフトキーイング変調回路 |
-
1992
- 1992-08-13 JP JP4215881A patent/JP2760225B2/ja not_active Expired - Lifetime
-
1993
- 1993-08-09 US US08/103,854 patent/US5434888A/en not_active Expired - Fee Related
- 1993-08-10 EP EP93306289A patent/EP0584996B1/en not_active Expired - Lifetime
- 1993-08-10 ES ES93306289T patent/ES2121952T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0584996A1 (en) | 1994-03-02 |
EP0584996B1 (en) | 1998-10-21 |
JPH0662062A (ja) | 1994-03-04 |
US5434888A (en) | 1995-07-18 |
JP2760225B2 (ja) | 1998-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2121952T3 (es) | Aparato de modulacion de codificacion por desplazamiento de frecuencia. | |
US4278977A (en) | Range determining system | |
KR920022684A (ko) | 고주파 위상 동기 루프용 주파수 제어 발진기 | |
KR950007326A (ko) | 코히어런스 다중화 전송 시스템 | |
US7817284B2 (en) | Interferometric fiber optic gyroscope with off-frequency modulation signals | |
CN103701459A (zh) | 一种调制信号与解调本振信号的生成的方法 | |
KR940012950A (ko) | 불연속-시간 신호 처리 시스템 | |
US5159575A (en) | Single stage demodulator with reference signal phase dither | |
US4156205A (en) | Binary frequency synthesizer | |
GB1489901A (en) | Information transmission system | |
KR920022686A (ko) | 위상동기 루프의 락 검출 시스템 | |
KR890007491A (ko) | 주파수 동기 루프용 주파수 검파기 | |
KR910009005A (ko) | 통신네트워크에 접속되는 단말장치 | |
RU2580597C2 (ru) | Система контроля соблюдения правил дорожного движения | |
GB1519972A (en) | Data transmission system | |
SU595842A1 (ru) | Устройство дл восстановлени несущей частоты | |
US5020133A (en) | Phase/frequency modulator | |
SU760478A1 (ru) | Формирователь образцовых фазомодулированных • ' ' колебаний | |
SU843270A1 (ru) | Устройство компенсации сдвигачАСТОТ | |
SU663098A1 (ru) | Амплитудный модул тор с цифровым управлением | |
US5339055A (en) | Serrodyne phase modulator having ramp generated by combining two oscillator signals | |
SU1035776A1 (ru) | Цифровой синтезатор частоты с частотной модул цией | |
KR920015715A (ko) | 디지탈 통신시스템의 fsk 변조회로 | |
KR890003185B1 (ko) | 다수의 신호를 송출하는 무선제어용 송신기 | |
RU43704U1 (ru) | Модулятор сигнала |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 584996 Country of ref document: ES |