BR9712974A - Método e equipamento para aumentar a imunidade de receptores à interferência - Google Patents
Método e equipamento para aumentar a imunidade de receptores à interferênciaInfo
- Publication number
- BR9712974A BR9712974A BR9712974-7A BR9712974A BR9712974A BR 9712974 A BR9712974 A BR 9712974A BR 9712974 A BR9712974 A BR 9712974A BR 9712974 A BR9712974 A BR 9712974A
- Authority
- BR
- Brazil
- Prior art keywords
- lna
- intermodulation components
- enabled
- threshold
- immunity
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
-
- 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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
- H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
- Superheterodyne Receivers (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Stereo-Broadcasting Methods (AREA)
- Peptides Or Proteins (AREA)
- Amplifiers (AREA)
Abstract
Patente de Invenção: "MéTODO E EQUIPAMENTO PARA AUMENTAR A IMUNIDADE DE RECEPTORES A INTERFERêNCIA". Um método para ajustar o ganho de um circuito de recepção, desse modo melhorando a imunidade de um receptor à interferência. O circuito possui um LNA que amplifica o sinal recebido (1702). A potência do sinal recebido é controlada ativando-se ou desativando-se o LNA em resposta à potência medida do sinal recebido (1704). O nível de potência recebida é periodicamente comparado a um limite (1704). Quando o nível de potência recebida é maior que o limite, o LNA é desativado (1706). O LNA é reativado quando o nível de potência recebida for menor que o limite (1708) e não exista quaisquer componentes de intermodulação significativos detectados (1710). os componentes de intermodulação são detectados ativando-se brevemente o LNA e detectando-se a modificação resultante na potência medida do sinal (1710). Caso a modificação detectada seja maior que uma quantidade predeterminada, então existem componentes de intermodulação significativos presentes e o LNA não é reativado (1706). De outra forma, não existem componentes de intermodulação significativos presentes e o LNA é reativado (1702).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/723,491 US5722061A (en) | 1994-12-16 | 1996-09-30 | Method and apparatus for increasing receiver immunity to interference |
| PCT/US1997/016270 WO1999029047A1 (en) | 1996-09-30 | 1997-09-30 | Method and apparatus for increasing receiver immunity to interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9712974A true BR9712974A (pt) | 2002-01-02 |
Family
ID=26792759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9712974-7A BR9712974A (pt) | 1996-09-30 | 1997-09-30 | Método e equipamento para aumentar a imunidade de receptores à interferência |
Country Status (17)
| Country | Link |
|---|---|
| EP (1) | EP1020041B1 (pt) |
| JP (1) | JP4463332B2 (pt) |
| KR (1) | KR100432209B1 (pt) |
| AT (1) | ATE264028T1 (pt) |
| AU (1) | AU742121B2 (pt) |
| BR (1) | BR9712974A (pt) |
| CA (1) | CA2275115A1 (pt) |
| DE (1) | DE69728573T2 (pt) |
| DK (1) | DK1020041T3 (pt) |
| ES (1) | ES2222502T3 (pt) |
| FI (1) | FI990710A (pt) |
| HK (1) | HK1031280A1 (pt) |
| IL (1) | IL129261A (pt) |
| MX (1) | MXPA99003034A (pt) |
| NO (1) | NO991578L (pt) |
| RU (1) | RU2211532C2 (pt) |
| WO (1) | WO1999029047A1 (pt) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6801760B2 (en) * | 2000-08-08 | 2004-10-05 | Qualcomm Incorporated | Control of receiver immunity to interference by controlling linearity |
| KR100531839B1 (ko) * | 2001-09-20 | 2005-11-30 | 엘지전자 주식회사 | 씨디엠에이 단말기의 수신편차 보정방법 |
| KR20030031377A (ko) * | 2001-10-15 | 2003-04-21 | 삼성전자주식회사 | 이동통신 단말장치 수신기 |
| FI115808B (fi) | 2002-07-12 | 2005-07-15 | Filtronic Comtek Oy | Pienikohinaisen vahvistimen ohitusjärjestely |
| US7418244B2 (en) * | 2003-08-04 | 2008-08-26 | Analog Devices, Inc. | Radio transmitter with accurate power control |
| US7248847B2 (en) * | 2004-04-22 | 2007-07-24 | Kyocera Wireless Corp. | System and method for adaptively controlling receiver gain switch points |
| US8090327B2 (en) * | 2008-12-02 | 2012-01-03 | Broadcom Corporation | Configurable baseband processing for receiver and transmitter and methods for use therewith |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4870372A (en) * | 1988-05-20 | 1989-09-26 | At&E Corporation | AGC delay on an integrated circuit |
| JP2546347B2 (ja) * | 1988-08-15 | 1996-10-23 | 日本電気株式会社 | 無線送受信装置 |
| US5001776A (en) * | 1988-10-27 | 1991-03-19 | Motorola Inc. | Communication system with adaptive transceivers to control intermodulation distortion |
-
1997
- 1997-09-30 DE DE69728573T patent/DE69728573T2/de not_active Expired - Lifetime
- 1997-09-30 DK DK97909848T patent/DK1020041T3/da active
- 1997-09-30 BR BR9712974-7A patent/BR9712974A/pt not_active Application Discontinuation
- 1997-09-30 WO PCT/US1997/016270 patent/WO1999029047A1/en active IP Right Grant
- 1997-09-30 JP JP54859698A patent/JP4463332B2/ja not_active Expired - Lifetime
- 1997-09-30 ES ES97909848T patent/ES2222502T3/es not_active Expired - Lifetime
- 1997-09-30 EP EP97909848A patent/EP1020041B1/en not_active Expired - Lifetime
- 1997-09-30 IL IL12926197A patent/IL129261A/xx not_active IP Right Cessation
- 1997-09-30 AU AU47356/97A patent/AU742121B2/en not_active Expired
- 1997-09-30 RU RU99109000/09A patent/RU2211532C2/ru active
- 1997-09-30 MX MXPA99003034A patent/MXPA99003034A/es active IP Right Grant
- 1997-09-30 AT AT97909848T patent/ATE264028T1/de active
- 1997-09-30 CA CA002275115A patent/CA2275115A1/en not_active Abandoned
- 1997-09-30 KR KR10-1999-7003105A patent/KR100432209B1/ko active IP Right Grant
-
1999
- 1999-03-30 FI FI990710A patent/FI990710A/fi not_active Application Discontinuation
- 1999-03-30 NO NO991578A patent/NO991578L/no unknown
-
2001
- 2001-01-12 HK HK01100350A patent/HK1031280A1/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000049037A (ko) | 2000-07-25 |
| IL129261A0 (en) | 2001-04-30 |
| EP1020041B1 (en) | 2004-04-07 |
| AU4735697A (en) | 1999-06-16 |
| FI990710A0 (fi) | 1999-03-30 |
| DE69728573T2 (de) | 2005-03-31 |
| KR100432209B1 (ko) | 2004-05-20 |
| DK1020041T3 (da) | 2004-08-02 |
| HK1031280A1 (en) | 2001-06-08 |
| DE69728573D1 (de) | 2004-05-13 |
| ES2222502T3 (es) | 2005-02-01 |
| NO991578L (no) | 1999-05-28 |
| RU2211532C2 (ru) | 2003-08-27 |
| CA2275115A1 (en) | 1999-06-10 |
| IL129261A (en) | 2003-09-17 |
| EP1020041A1 (en) | 2000-07-19 |
| MXPA99003034A (es) | 2005-07-25 |
| JP2001505026A (ja) | 2001-04-10 |
| WO1999029047A1 (en) | 1999-06-10 |
| JP4463332B2 (ja) | 2010-05-19 |
| NO991578D0 (no) | 1999-03-30 |
| AU742121B2 (en) | 2001-12-20 |
| FI990710A (fi) | 1999-03-30 |
| ATE264028T1 (de) | 2004-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
| B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM O 8O COMBINADO COM O ART. 13 DA LPI |
|
| B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |