ES2155128T3 - Reduccion de interferencias procedentes de los osciladores en aparatos electronicos. - Google Patents
Reduccion de interferencias procedentes de los osciladores en aparatos electronicos.Info
- Publication number
- ES2155128T3 ES2155128T3 ES95917690T ES95917690T ES2155128T3 ES 2155128 T3 ES2155128 T3 ES 2155128T3 ES 95917690 T ES95917690 T ES 95917690T ES 95917690 T ES95917690 T ES 95917690T ES 2155128 T3 ES2155128 T3 ES 2155128T3
- Authority
- ES
- Spain
- Prior art keywords
- signal
- interference
- modulation
- modulated
- spectral
- 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
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
- H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2215/00—Reducing interference at the transmission system level
- H04B2215/064—Reduction of clock or synthesizer reference frequency harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
EN UN APARATO ELECTRONICO QUE INCLUYE UN OSCILADOR DE REFERENCIA Y UNA PARTE DE INTERFERENCIA QUE GENERA UNA SEÑAL DE INTERFERENCIA CON UN COMPONENTE ESPECTRAL DENTRO DE UN ANCHO DE BANDA RECEPTOR, SUMINISTRANDO EL OSCILADOR DE REFERENCIA UNA SEÑAL OSCILANTE DE REFERENCIA A LA PARTE DE INTERFERENCIA DE LA QUE LA SEÑAL OSCILANTE DE REFERENCIA SE DERIVA LA SEÑAL DE INTERFERENCIA, AMPLITUD DE LA SEÑAL DE INTERFERENCIA DENTRO DE UN ANCHO DE BANDA RECEPTOR QUE SE REDUCE MEDIANTE UN ANGULO QUE MODULA LA SEÑAL ONDULANTE DE REFERENCIA CON UN SEÑAL SINUSOIDAL PARA GENERAR UNA SEÑAL DE INTERFERENCIA MODULADA CON UNA AMPLITUD PORTADORA REDUCIDA Y BANDAS SECUNDARIAS DE MODULACION QUE SE ENCUENTRAN FUERA DEL ANCHO DE BANDA DEL RECEPTOR. LA SEÑAL DE INTERFERENCIA MODULADA EN ANGULO TIENE PREFERIBLEMENTE UN INDICE DE MODULACION ({BE}), QUE SE ACERCA A UNA SOLUCION DE LA ECUACION J{SUB,0}({BE})=0, DONDE J{SUB,0} ES UNA FUNCION BASSEL DEL PRIMER TIPO. LA MODULACION EN ANGULO PUEDE CONSEGUIRSE ALTERNATIVAMENTE MEDIANTE LA APLICACION DE LA MODULACION DE FRECUENCIA DIRECTA AL OSCILADOR DE REFERENCIA CON LA SEÑAL SINUSOIDAL PARA GENERAR UNA SEÑAL DE REFERENCIA MODULADA Y APLICAR DESPUES LA SEÑAL DE REFERENCIA MODULADA A LA PARTE DE INTERFERENCIA, O MEDIANTE LA MODULACION DE FASE DE LA SEÑAL OSCILANTE DE REFERENCIA CON LA SEÑAL SINUSOIDAL ANTES DE SUMINISTRARLA A LA PARTE DE INTERFERENCIA. DONDE LA SEÑAL DE INTERFERENCIA POSEE UN COMPONENTE ESPECTRAL DE INTERFERENCIA DENTRO DE UN ANCHO DE BANDA DE MEDICION. LA AMPLITUD DEL COMPONENTE ESPECTRAL DE INTERFERENCIA SE REDUCE UTILIZANDO UNA SEÑAL MODULADORA SIN RUIDO DETERMINISTICA, TAL COMO UNA SEÑAL MODULADORA DE FORMA DE ONDA DE DIENTE DE SIERRA, PARA MODULAR EN ANGULO UNA SEÑAL DE RELOJ DE LA QUE SE DERIVA LA SEÑAL DE INTERFERENCIA.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23091694A | 1994-04-21 | 1994-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2155128T3 true ES2155128T3 (es) | 2001-05-01 |
Family
ID=22867072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES95917690T Expired - Lifetime ES2155128T3 (es) | 1994-04-21 | 1995-04-20 | Reduccion de interferencias procedentes de los osciladores en aparatos electronicos. |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US5812940A (es) |
| EP (1) | EP0705505B1 (es) |
| JP (1) | JPH09501815A (es) |
| KR (1) | KR100357673B1 (es) |
| CN (1) | CN1097897C (es) |
| AT (1) | ATE198966T1 (es) |
| AU (1) | AU695887B2 (es) |
| CA (1) | CA2165772C (es) |
| DE (1) | DE69519971D1 (es) |
| ES (1) | ES2155128T3 (es) |
| FI (1) | FI112750B (es) |
| MX (1) | MX9600066A (es) |
| NO (1) | NO313070B1 (es) |
| RU (1) | RU2134482C1 (es) |
| WO (1) | WO1995029542A1 (es) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5812590A (en) * | 1996-02-28 | 1998-09-22 | Motorola, Inc. | Frequency spreading clock modulation |
| US5970399A (en) * | 1995-11-22 | 1999-10-19 | Telefonaktiebolaget Lm Ericsson | Radio channel squelching systems |
| GB2311673B (en) * | 1996-03-29 | 2000-10-04 | Advanced Risc Mach Ltd | Clocked electronic circuit |
| JPH1013260A (ja) * | 1996-06-25 | 1998-01-16 | Matsushita Electric Ind Co Ltd | 信号処理回路 |
| US6006071A (en) * | 1998-01-12 | 1999-12-21 | Intersil Corporation | RF communications system operable in the presence of a repetitive interference source and related methods |
| KR100326200B1 (ko) | 1999-04-12 | 2002-02-27 | 구본준, 론 위라하디락사 | 데이터 중계장치와 이를 이용한 액정패널 구동장치, 모니터 장치 및 표시장치의 구동방법 |
| US6661852B1 (en) | 1999-07-21 | 2003-12-09 | Raytheon Company | Apparatus and method for quadrature tuner error correction |
| US6640237B1 (en) | 1999-07-27 | 2003-10-28 | Raytheon Company | Method and system for generating a trigonometric function |
| US6895046B1 (en) | 1999-10-18 | 2005-05-17 | Bae Systems Information And Electronic Systems Integration Inc. | System and method of providing a spread spectrum pulse width modulator clock |
| US6590948B1 (en) | 2000-03-17 | 2003-07-08 | Raytheon Company | Parallel asynchronous sample rate reducer |
| US6647075B1 (en) | 2000-03-17 | 2003-11-11 | Raytheon Company | Digital tuner with optimized clock frequency and integrated parallel CIC filter and local oscillator |
| FR2809884B1 (fr) * | 2000-05-31 | 2002-11-29 | St Microelectronics Sa | Dispositif pour reduire l'emission electromagnetique d'un circuit electronique |
| US6982707B2 (en) * | 2002-03-14 | 2006-01-03 | Genesis Microchip Inc. | Method and apparatus utilizing direct digital synthesizer and spread spectrum techniques for reducing EMI in digital display devices |
| US7498871B2 (en) * | 2006-04-19 | 2009-03-03 | Sony Ericsson Mobile Communications Ab | Spectrum spreaders including tunable filters and related devices and methods |
| US7508278B2 (en) * | 2006-09-07 | 2009-03-24 | Via Technologies, Inc. | Asymmetry triangular frequency modulation profiles for spread spectrum clock generations |
| US8265562B2 (en) * | 2008-03-12 | 2012-09-11 | Qualcomm Incorporated | Method and system to indicate a desired transmit power and soft power control in a wireless network |
| EP2408108A1 (en) * | 2010-07-14 | 2012-01-18 | Telefonaktiebolaget L M Ericsson AB (Publ) | Clocking scheme for a wireless communication device |
| US9055595B2 (en) * | 2011-02-15 | 2015-06-09 | Telefonaktiebolaget L M Ericsson (Publ) | Bandwidth-based configuration of measurement gaps |
| CN108663136A (zh) * | 2018-07-16 | 2018-10-16 | 湖北工业大学 | 无源无线声表面波温度传感器抗干扰方法 |
| DE102018215675B4 (de) * | 2018-09-14 | 2022-10-06 | Vega Grieshaber Kg | Fremdstrahlungserkennung mit Gamma-Modulator |
| WO2020082311A1 (zh) * | 2018-10-25 | 2020-04-30 | Oppo广东移动通信有限公司 | 消除频率干扰的装置和方法 |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3354410A (en) * | 1965-07-22 | 1967-11-21 | Bell Telephone Labor Inc | Method for reducing interference caused by electromagnetic radiation from clock controlled systems |
| US3496470A (en) * | 1966-07-11 | 1970-02-17 | Motorola Inc | Frequency modulation transmitter with crystal filter interposed between class c frequency multipliers for noise reduction |
| US3617892A (en) * | 1967-02-27 | 1971-11-02 | Rca Corp | Frequency modulation system for spreading radiated power |
| JPS51117813A (en) * | 1975-04-09 | 1976-10-16 | Shintou Denki Kk | Transmitter to prevent radiation of abnormal electric wave |
| US4247939A (en) * | 1978-11-09 | 1981-01-27 | Sanders Associates, Inc. | Spread spectrum detector |
| US4425661A (en) * | 1981-09-03 | 1984-01-10 | Applied Spectrum Technologies, Inc. | Data under voice communications system |
| US4466107A (en) * | 1981-09-14 | 1984-08-14 | The Microperipheral Corporation | Data communication system |
| US4545072A (en) * | 1982-02-22 | 1985-10-01 | Motorola, Inc. | Method and apparatus for eliminating interference due to spurious signals generated in synthesized receivers |
| US4507796A (en) * | 1982-10-20 | 1985-03-26 | Printronix, Inc. | Electronic apparatus having low radio frequency interference from system clock signal |
| EP0163313A3 (en) * | 1984-05-30 | 1986-10-01 | Tektronix, Inc. | Method and apparatus for spectral dispersion of the radiated energy from a digital system |
| US4745566A (en) * | 1985-03-07 | 1988-05-17 | Tektronix, Inc. | Angle modulated waveform synthesizer |
| US4870699A (en) * | 1986-03-26 | 1989-09-26 | General Electric Company | Method and apparatus for controlling the frequency of operation and at least one further variable operating parameter of a radio communications device |
| US4888788A (en) * | 1986-11-20 | 1989-12-19 | Matsushita Electric Industrial Co., Ltd. | Transmitting and receiving systems |
| US4811425A (en) * | 1987-01-09 | 1989-03-07 | Itt Avionics, A Division Of Itt Corporation | Apparatus for reducing the effects of local oscillator leakage in mixers employed in zero IF receivers |
| JPS6489823A (en) * | 1987-09-30 | 1989-04-05 | Toshiba Corp | Control circuit for radio equipment |
| DE3802863A1 (de) * | 1988-02-01 | 1989-08-10 | Vdo Schindling | Verfahren zum betrieb einer taktgesteuerten einrichtung und taktgesteuerte einrichtung |
| DE3823018A1 (de) * | 1988-07-07 | 1990-01-11 | Bosch Gmbh Robert | Verfahren und vorrichtung zum entstoeren von mikroprozessor-schaltungen |
| DE3840498C1 (es) * | 1988-12-01 | 1990-06-13 | Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De | |
| JPH02239309A (ja) * | 1989-03-14 | 1990-09-21 | Taiyo Musen Kk | マイクロプロセッサの駆動方法 |
| WO1990014710A1 (en) * | 1989-05-22 | 1990-11-29 | Motorola, Inc. | Modulated clock source for logic circuits |
| US5128957A (en) * | 1990-08-10 | 1992-07-07 | Ricoh Company, Ltd. | Initial acquisition method in spread spectrum system and such system |
| US5239686A (en) * | 1991-04-29 | 1993-08-24 | Echelon Corporation | Transceiver with rapid mode switching capability |
| JPH04357703A (ja) * | 1991-06-04 | 1992-12-10 | Matsushita Electric Ind Co Ltd | 周波数変調回路 |
| US5179728A (en) * | 1991-09-30 | 1993-01-12 | Rockwell International Corporation | Spurious product and local oscillator radiation suppression system for use in superheterodyne radio receivers |
| US5225792A (en) * | 1991-11-01 | 1993-07-06 | Motorola, Inc. | Oscillator circuit having means for switching between oscillator configurations |
| US5263055A (en) * | 1991-11-04 | 1993-11-16 | Motorola, Inc. | Apparatus and method for reducing harmonic interference generated by a clock signal |
-
1995
- 1995-04-20 EP EP95917690A patent/EP0705505B1/en not_active Expired - Lifetime
- 1995-04-20 CN CN95190510A patent/CN1097897C/zh not_active Expired - Fee Related
- 1995-04-20 RU RU96102771A patent/RU2134482C1/ru not_active IP Right Cessation
- 1995-04-20 AT AT95917690T patent/ATE198966T1/de not_active IP Right Cessation
- 1995-04-20 KR KR1019950705816A patent/KR100357673B1/ko not_active Expired - Fee Related
- 1995-04-20 CA CA002165772A patent/CA2165772C/en not_active Expired - Fee Related
- 1995-04-20 DE DE69519971T patent/DE69519971D1/de not_active Expired - Lifetime
- 1995-04-20 ES ES95917690T patent/ES2155128T3/es not_active Expired - Lifetime
- 1995-04-20 WO PCT/US1995/005139 patent/WO1995029542A1/en not_active Ceased
- 1995-04-20 AU AU23653/95A patent/AU695887B2/en not_active Ceased
- 1995-04-20 JP JP7527840A patent/JPH09501815A/ja not_active Ceased
- 1995-12-15 NO NO19955115A patent/NO313070B1/no unknown
- 1995-12-19 FI FI956122A patent/FI112750B/fi not_active IP Right Cessation
-
1996
- 1996-01-03 MX MX9600066A patent/MX9600066A/es unknown
-
1997
- 1997-05-23 US US08/862,319 patent/US5812940A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ATE198966T1 (de) | 2001-02-15 |
| FI112750B (fi) | 2003-12-31 |
| NO313070B1 (no) | 2002-08-05 |
| CA2165772A1 (en) | 1995-11-02 |
| EP0705505A1 (en) | 1996-04-10 |
| WO1995029542A1 (en) | 1995-11-02 |
| DE69519971D1 (de) | 2001-03-01 |
| AU2365395A (en) | 1995-11-16 |
| FI956122A0 (fi) | 1995-12-19 |
| KR100357673B1 (ko) | 2003-03-10 |
| MX9600066A (es) | 1998-11-30 |
| AU695887B2 (en) | 1998-08-27 |
| US5812940A (en) | 1998-09-22 |
| FI956122A7 (fi) | 1996-02-08 |
| JPH09501815A (ja) | 1997-02-18 |
| CN1097897C (zh) | 2003-01-01 |
| RU2134482C1 (ru) | 1999-08-10 |
| CA2165772C (en) | 2004-04-13 |
| NO955115D0 (no) | 1995-12-15 |
| KR960703293A (ko) | 1996-06-19 |
| CN1129050A (zh) | 1996-08-14 |
| NO955115L (no) | 1996-02-13 |
| EP0705505B1 (en) | 2001-01-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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