CA2003207A1 - Recepteur a relais - Google Patents
Recepteur a relaisInfo
- Publication number
- CA2003207A1 CA2003207A1 CA2003207A CA2003207A CA2003207A1 CA 2003207 A1 CA2003207 A1 CA 2003207A1 CA 2003207 A CA2003207 A CA 2003207A CA 2003207 A CA2003207 A CA 2003207A CA 2003207 A1 CA2003207 A1 CA 2003207A1
- Authority
- CA
- Canada
- Prior art keywords
- band
- signal
- amplified
- automatic gain
- intermediate 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15535—Control of relay amplifier gain
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63292597A JPH02137552A (ja) | 1988-11-18 | 1988-11-18 | 中継用受信機 |
JP63-292597 | 1988-11-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2003207A1 true CA2003207A1 (fr) | 1990-05-18 |
CA2003207C CA2003207C (fr) | 1994-07-12 |
Family
ID=17783845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002003207A Expired - Fee Related CA2003207C (fr) | 1988-11-18 | 1989-11-17 | Recepteur a relais |
Country Status (5)
Country | Link |
---|---|
US (1) | US5230098A (fr) |
EP (1) | EP0369465B1 (fr) |
JP (1) | JPH02137552A (fr) |
CA (1) | CA2003207C (fr) |
DE (1) | DE68927287D1 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5287556A (en) * | 1990-09-28 | 1994-02-15 | Motorola, Inc. | Interference reduction using an adaptive receiver filter, signal strength, and BER sensing |
GB2260046B (en) * | 1991-09-26 | 1995-02-15 | Northern Telecom Ltd | Optical communications systems |
EP0640265B1 (fr) * | 1992-05-12 | 1998-03-04 | Nokia (Deutschland) GmbH | Systeme de transmission pour la transmission d'un signal utile module sur une porteuse |
JPH05327378A (ja) * | 1992-05-22 | 1993-12-10 | Toshiba Corp | 無線通信装置の自動利得制御回路 |
CA2107857C (fr) * | 1992-10-09 | 1998-05-05 | Osamu Kagami | Systeme de relais radio numerique hybride |
US5802452A (en) * | 1996-01-17 | 1998-09-01 | Gte Government Systems Corporation | Multiple channel radio frequency repeater |
US6178314B1 (en) * | 1997-06-27 | 2001-01-23 | Visteon Global Technologies, Inc. | Radio receiver with adaptive bandwidth controls at intermediate frequency and audio frequency sections |
DE19737897C2 (de) * | 1997-08-29 | 1999-07-22 | Dirc Gmbh & Co Kg | Datenübertragungssystem |
US6614806B1 (en) * | 2000-01-06 | 2003-09-02 | Motorola Inc. | Method and apparatus for interfering receiver signal overload protection |
FR2806554B1 (fr) * | 2000-03-15 | 2002-11-29 | Telediffusion Fse | Dispositif de transposition a agilite de frequence d'un signal radiofrequence en un signal a frequence intermediaire ou reciproquement |
US7164376B2 (en) * | 2004-11-12 | 2007-01-16 | Analog Devices, Inc. | Dual-mode delta-sigma analog to digital converter system and method |
JP5027693B2 (ja) | 2008-03-05 | 2012-09-19 | ルネサスエレクトロニクス株式会社 | Fsk受信装置 |
RU2701507C1 (ru) * | 2018-11-15 | 2019-09-27 | Акционерное общество "Ижевский радиозавод" | Ретранслятор и конвертер радиосигналов |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3035169A (en) * | 1956-10-03 | 1962-05-15 | Gen Electric Co Ltd | Radio relay system with automatic channel selection based upon signal strength |
US3872387A (en) * | 1972-09-29 | 1975-03-18 | Zenith Radio Corp | Frequency response modifier for fixed-tuned IF amplifiers |
US3931576A (en) * | 1975-01-14 | 1976-01-06 | General Electric Company | Automatic gain control circuit for radio receiver |
JPS5768934A (en) * | 1980-10-17 | 1982-04-27 | Fujitsu Ltd | Receiver |
JPS595714A (ja) * | 1982-07-01 | 1984-01-12 | Matsushita Electric Ind Co Ltd | 帯域「ろ」 |
JPS617736A (ja) * | 1984-06-22 | 1986-01-14 | Nec Corp | 無線中継方式 |
JPS61135214A (ja) * | 1984-12-06 | 1986-06-23 | Nec Corp | 電圧制御可変帯域幅ろ波器 |
JPS6489709A (en) * | 1987-09-30 | 1989-04-04 | Toshiba Corp | Band width variable circuit |
-
1988
- 1988-11-18 JP JP63292597A patent/JPH02137552A/ja active Pending
-
1989
- 1989-11-16 US US07/437,204 patent/US5230098A/en not_active Expired - Fee Related
- 1989-11-17 EP EP89121307A patent/EP0369465B1/fr not_active Expired - Lifetime
- 1989-11-17 DE DE68927287T patent/DE68927287D1/de not_active Expired - Lifetime
- 1989-11-17 CA CA002003207A patent/CA2003207C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0369465A3 (fr) | 1991-12-04 |
DE68927287D1 (de) | 1996-11-07 |
CA2003207C (fr) | 1994-07-12 |
EP0369465B1 (fr) | 1996-10-02 |
JPH02137552A (ja) | 1990-05-25 |
EP0369465A2 (fr) | 1990-05-23 |
US5230098A (en) | 1993-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |