JPH0378812B2 - - Google Patents
Info
- Publication number
- JPH0378812B2 JPH0378812B2 JP58077670A JP7767083A JPH0378812B2 JP H0378812 B2 JPH0378812 B2 JP H0378812B2 JP 58077670 A JP58077670 A JP 58077670A JP 7767083 A JP7767083 A JP 7767083A JP H0378812 B2 JPH0378812 B2 JP H0378812B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- signal
- receiver
- input
- 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
- 238000001514 detection method Methods 0.000 claims description 43
- 230000003321 amplification Effects 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 5
- 230000002452 interceptive effect Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Superheterodyne Receivers (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8207754 | 1982-05-04 | ||
| FR8207754A FR2526609A1 (fr) | 1982-05-04 | 1982-05-04 | Recepteur de signaux multiporteuses protege des signaux perturbateurs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58204635A JPS58204635A (ja) | 1983-11-29 |
| JPH0378812B2 true JPH0378812B2 (Direct) | 1991-12-16 |
Family
ID=9273719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58077670A Granted JPS58204635A (ja) | 1982-05-04 | 1983-05-04 | 不必要信号から保護された多重搬送波信号用受信機 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4509206A (Direct) |
| EP (1) | EP0093651B1 (Direct) |
| JP (1) | JPS58204635A (Direct) |
| CA (1) | CA1215127A (Direct) |
| DE (1) | DE3363368D1 (Direct) |
| FR (1) | FR2526609A1 (Direct) |
Families Citing this family (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4665560A (en) * | 1985-05-20 | 1987-05-12 | Texas Instruments Incorporated | Wide band automatic gain control with limiting amplifiers |
| JPH0338906A (ja) * | 1989-07-05 | 1991-02-20 | Pioneer Electron Corp | 受信装置 |
| US5384547A (en) * | 1993-08-02 | 1995-01-24 | Motorola, Inc. | Apparatus and method for attenuating a multicarrier input signal of a linear device |
| SE503548C2 (sv) * | 1993-10-01 | 1996-07-01 | Telia Ab | Anordning i OFDM fleranvändarsystem |
| US5570350A (en) * | 1994-09-30 | 1996-10-29 | Lucent Technologies Inc. | CDMA cellular communications with multicarrier signal processing |
| US5625871A (en) * | 1994-09-30 | 1997-04-29 | Lucent Technologies Inc. | Cellular communications system with multicarrier signal processing |
| US5745846A (en) * | 1995-08-07 | 1998-04-28 | Lucent Technologies, Inc. | Channelized apparatus for equalizing carrier powers of multicarrier signal |
| US6075991A (en) * | 1996-03-08 | 2000-06-13 | Watkins-Johnson Company | Wireless base station with near-far gain compensation |
| US6078796A (en) * | 1998-01-29 | 2000-06-20 | Motorola, Inc. | Method and apparatus for receiving a wideband signal using multiple automatic gain controllers |
| US6704317B1 (en) | 1998-05-27 | 2004-03-09 | 3Com Corporation | Multi-carrier LAN modem server |
| US6891887B1 (en) | 1998-05-27 | 2005-05-10 | 3Com Corporation | Multi-carrier LAN adapter device using interpolative equalizer |
| US6507585B1 (en) | 1998-05-27 | 2003-01-14 | 3Com Corporation | Multi-carrier LAN adapter device using frequency domain equalizer |
| US6603811B1 (en) | 1998-05-29 | 2003-08-05 | 3Com Corporation | Low complexity frequency domain equalizer having fast re-lock |
| US6377683B1 (en) | 1998-05-29 | 2002-04-23 | 3Com Corporation | Low complexity frequency domain echo canceller for DMT transceivers |
| US6477182B2 (en) * | 1999-06-08 | 2002-11-05 | Diva Systems Corporation | Data transmission method and apparatus |
| EP1156589B1 (en) * | 2000-05-17 | 2008-01-09 | Sony Deutschland GmbH | AM receiver |
| DE60037583T2 (de) * | 2000-08-24 | 2009-01-08 | Sony Deutschland Gmbh | Kommunikationseinrichtung zum Senden und Empfangen von OFDM Signalen in einem Funkkommunikationssystem |
| JP2002176239A (ja) * | 2000-12-06 | 2002-06-21 | Agilent Technologies Japan Ltd | 高周波回路基板の接続装置及び接続方法 |
| JP2005531202A (ja) | 2002-06-21 | 2005-10-13 | ワイデファイ インコーポレイテッド | 無線ローカル・エリア・ネットワーク・リピータ |
| WO2004006476A1 (ja) * | 2002-07-04 | 2004-01-15 | Fujitsu Limited | 無線受信機 |
| US20050124308A1 (en) * | 2002-07-04 | 2005-06-09 | Yasuhiro Shibuya | Radio receiver |
| WO2004038958A1 (en) * | 2002-10-24 | 2004-05-06 | Widefi, Inc. | Wireless local area network repeater with in-band control channel |
| US8885688B2 (en) * | 2002-10-01 | 2014-11-11 | Qualcomm Incorporated | Control message management in physical layer repeater |
| KR101012629B1 (ko) * | 2002-10-11 | 2011-02-09 | 퀄컴 인코포레이티드 | Wlan 중계기 내에서의 루프 효과의 감소 방법 |
| US8078100B2 (en) | 2002-10-15 | 2011-12-13 | Qualcomm Incorporated | Physical layer repeater with discrete time filter for all-digital detection and delay generation |
| BR0315372A (pt) * | 2002-10-15 | 2005-08-23 | Widefi Inc | Repetidor de translação de frequência, e, método para translação de frequência |
| US7230935B2 (en) * | 2002-10-24 | 2007-06-12 | Widefi, Inc. | Physical layer repeater with selective use of higher layer functions based on network operating conditions |
| BR0316218A (pt) * | 2002-11-15 | 2005-09-27 | Widefi Inc | Método e aparelho para detectar a presença de um sinal em um de pelo menos dois canais de frequência em um repetidor de translação de frequência para uso em uma rede de área local sem fios (wlan) |
| AU2003300938A1 (en) * | 2002-12-16 | 2004-07-29 | Widefi, Inc. | Improved wireless network repeater |
| WO2004068754A1 (ja) * | 2003-01-30 | 2004-08-12 | Fujitsu Limited | マルチキャリア受信装置 |
| US8027642B2 (en) | 2004-04-06 | 2011-09-27 | Qualcomm Incorporated | Transmission canceller for wireless local area network |
| CN1993904B (zh) * | 2004-05-13 | 2011-09-07 | 高通股份有限公司 | 具有用于上行链路及下行链路同步之下行链路检测的非变频中继器 |
| US7187904B2 (en) * | 2004-06-03 | 2007-03-06 | Widefi, Inc. | Frequency translating repeater with low cost high performance local oscillator architecture |
| WO2006081405A2 (en) * | 2005-01-28 | 2006-08-03 | Widefi, Inc. | Physical layer repeater configuration for increasing mino performance |
| WO2007123733A2 (en) * | 2006-03-31 | 2007-11-01 | Qualcomm Incorporated | Enhanced physical layer repeater for operation in wimax systems |
| EP2070207A4 (en) * | 2006-09-01 | 2012-11-28 | Qualcomm Inc | AMPLIFIER WITH DUAL MULTIPLIER OR TRANSMIT ANTENNA CONFIGURATION WITH ADAPTATION FOR INCREASED ISOLATION |
| KR101123600B1 (ko) * | 2006-09-21 | 2012-03-21 | 퀄컴 인코포레이티드 | 중계기들 사이에서 발진을 완화시키는 방법 및 장치 |
| WO2008057290A1 (en) | 2006-10-26 | 2008-05-15 | Qualcomm Incorporated | Repeater techniques for multiple input multiple output utilizing beam formers |
| FR2927202A1 (fr) * | 2008-02-04 | 2009-08-07 | France Telecom | Ponderation en puissance d'un signal multiporteuse a la reception dans un systeme de communication. |
| US20100074371A1 (en) * | 2008-09-24 | 2010-03-25 | Donald Lee West | Ultra narrow band frequency selectior for zero point modulated carrier |
| IL266247B (en) * | 2019-04-18 | 2020-10-29 | Elbit Systems Land & C4I Ltd | A high frequency radio that includes an adjustable bandpass filter to improve incoming call detection and incoming call processing methods |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042800A (en) * | 1960-07-01 | 1962-07-03 | Hughes Aircraft Co | Selective automatic gain control circuit |
| US3411088A (en) * | 1965-02-09 | 1968-11-12 | Bell Telephone Labor Inc | Automatic input power level adjustment apparatus for amplifier of a broadband repeater |
| US3667043A (en) * | 1969-09-19 | 1972-05-30 | Telcom Inc | Constant gain bandwidth product communication satellite repeater |
| US3831095A (en) * | 1973-03-26 | 1974-08-20 | G Mounce | Receiver system having multiple contributing channels |
| US4126828A (en) * | 1976-07-31 | 1978-11-21 | Trio Kabushiki Kaisha | Intermodulation antiinterference device for superheterodyne receiver |
-
1982
- 1982-05-04 FR FR8207754A patent/FR2526609A1/fr active Granted
-
1983
- 1983-04-26 EP EP83400824A patent/EP0093651B1/fr not_active Expired
- 1983-04-26 DE DE8383400824T patent/DE3363368D1/de not_active Expired
- 1983-05-02 US US06/490,513 patent/US4509206A/en not_active Expired - Fee Related
- 1983-05-02 CA CA000427223A patent/CA1215127A/en not_active Expired
- 1983-05-04 JP JP58077670A patent/JPS58204635A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4509206A (en) | 1985-04-02 |
| FR2526609B1 (Direct) | 1984-09-14 |
| DE3363368D1 (en) | 1986-06-12 |
| JPS58204635A (ja) | 1983-11-29 |
| EP0093651A1 (fr) | 1983-11-09 |
| EP0093651B1 (fr) | 1986-05-07 |
| CA1215127A (en) | 1986-12-09 |
| FR2526609A1 (fr) | 1983-11-10 |
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