DE68922663D1 - Kommunikationssystem mit Antennen diversity. - Google Patents
Kommunikationssystem mit Antennen diversity.Info
- Publication number
- DE68922663D1 DE68922663D1 DE68922663T DE68922663T DE68922663D1 DE 68922663 D1 DE68922663 D1 DE 68922663D1 DE 68922663 T DE68922663 T DE 68922663T DE 68922663 T DE68922663 T DE 68922663T DE 68922663 D1 DE68922663 D1 DE 68922663D1
- Authority
- DE
- Germany
- Prior art keywords
- communication system
- antenna diversity
- diversity
- antenna
- communication
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0817—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with multiple receivers and antenna path selection
- H04B7/082—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with multiple receivers and antenna path selection selecting best antenna path
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16857388 | 1988-07-06 | ||
JP10558188 | 1988-08-10 | ||
JP32704188A JPH02140023A (ja) | 1988-07-06 | 1988-12-23 | ダイバシチアンテナ通信方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68922663D1 true DE68922663D1 (de) | 1995-06-22 |
DE68922663T2 DE68922663T2 (de) | 1995-10-05 |
Family
ID=27310529
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68922663T Expired - Fee Related DE68922663T2 (de) | 1988-07-06 | 1989-07-05 | Kommunikationssystem mit Antennen diversity. |
DE68927936T Expired - Fee Related DE68927936T2 (de) | 1988-07-06 | 1989-07-05 | Antennenschaltdiversity mit Hysterese |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68927936T Expired - Fee Related DE68927936T2 (de) | 1988-07-06 | 1989-07-05 | Antennenschaltdiversity mit Hysterese |
Country Status (7)
Country | Link |
---|---|
US (1) | US5161252A (de) |
EP (2) | EP0350007B1 (de) |
CA (1) | CA1311802C (de) |
DE (2) | DE68922663T2 (de) |
DK (1) | DK333389A (de) |
FI (1) | FI893295A (de) |
NO (1) | NO175659C (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991011447A1 (en) * | 1990-01-25 | 1991-08-08 | Farmitalia Carlo Erba S.R.L. | Process for preparing ergoline derivatives |
JPH03293822A (ja) * | 1990-04-12 | 1991-12-25 | Pioneer Electron Corp | ダイバシティー受信機 |
DE4101629C3 (de) * | 1991-01-21 | 2003-06-26 | Fuba Automotive Gmbh | Antennendiversity-Anlage mit mindestens zwei Antennen für den mobilen Empfang von Meter- und Dezimeterwellen |
US5231273A (en) * | 1991-04-09 | 1993-07-27 | Comtec Industries | Inventory management system |
DE4140741A1 (de) * | 1991-12-11 | 1993-06-17 | Flachglas Ag | Verfahren zum betrieb einer mobilfunkanlage eines fahrzeuges, insbesondere eines kraftfahrzeuges |
WO1994010764A1 (de) * | 1992-10-26 | 1994-05-11 | Siemens Aktiengesellschaft | Verfahren und anordnung zur antennenauswahl-diversity in einer empfangseinrichtung eines schnurlosen telefonsystems |
DE4326523A1 (de) * | 1993-08-06 | 1995-02-09 | Siemens Ag | Universelles Mobil-Telekommunikationssystem |
AU7925194A (en) * | 1993-09-30 | 1995-04-18 | Pacific Communication Sciences, Inc. | Multiple antenna home base for digital cordless telephones |
KR960009446B1 (en) * | 1993-12-23 | 1996-07-19 | Hyundai Electronics Ind | A diversity device of gps antenna |
US5581707A (en) * | 1994-07-27 | 1996-12-03 | Psc, Inc. | System for wireless collection of data from a plurality of remote data collection units such as portable bar code readers |
US5684491A (en) * | 1995-01-27 | 1997-11-04 | Hazeltine Corporation | High gain antenna systems for cellular use |
US5748676A (en) * | 1995-05-01 | 1998-05-05 | Norand Corporation | Network utilizing modified preambles that support antenna diversity |
JP3141784B2 (ja) * | 1996-07-10 | 2001-03-05 | 双葉電子工業株式会社 | 受信アンテナ選択方法およびダイバーシティ受信機 |
US5960350A (en) * | 1996-12-05 | 1999-09-28 | Motorola, Inc. | Method and system for optimizing a traffic channel in a wireless communications system |
CN1142635C (zh) * | 1997-05-13 | 2004-03-17 | 夸尔柯姆股份有限公司 | 多副天线的检测和选择系统 |
GB9901789D0 (en) * | 1998-04-22 | 1999-03-17 | Koninkl Philips Electronics Nv | Antenna diversity system |
DE19845534B4 (de) * | 1998-10-02 | 2005-01-27 | Robert Bosch Gmbh | Antennenschaltung |
US6600908B1 (en) | 1999-02-04 | 2003-07-29 | Hark C. Chan | Method and system for broadcasting and receiving audio information and associated audio indexes |
DE19935675A1 (de) * | 1999-07-29 | 2001-02-15 | Bosch Gmbh Robert | Schaltung zum Umschalten zwischen Empfangsantennen |
US20070111689A1 (en) * | 2000-07-24 | 2007-05-17 | Hermann Link | Apparatus for selecting a receiver among a plurality of receivers in a diversity receiver system based upon automatic gain correction |
US20060046657A1 (en) * | 2002-05-28 | 2006-03-02 | De Ruijter Hendricus C | Diversity receiver and method for estimating signal quality |
JP4041958B2 (ja) * | 2002-07-18 | 2008-02-06 | オムロン株式会社 | 空中線装置及びその空中線装置を含むタイヤ空気圧モニタリングシステム |
EP1608083B1 (de) * | 2004-06-17 | 2017-03-15 | Harman Becker Automotive Systems GmbH | Diversitätsempfang mit Identifizierung und Evaluierung von spezifischen Antenneneigenschaften |
KR20090057559A (ko) * | 2007-12-03 | 2009-06-08 | 삼성전자주식회사 | 두 안테나 수신감도 변화 차이를 이용한 근접 센싱 방법 및장치 |
US8249523B2 (en) * | 2009-02-09 | 2012-08-21 | Broadcom Corporation | Method and system for a multi-port distributed antenna |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213370A (en) * | 1961-03-13 | 1965-10-19 | Ibm | Signal selecting system with switching at the interstice between data increments |
JPS5542790B2 (de) * | 1975-01-09 | 1980-11-01 | ||
JPS59167133A (ja) * | 1983-03-11 | 1984-09-20 | Mitsubishi Electric Corp | 2ブランチダイバ−シテイ受信装置 |
JPS59178830A (ja) * | 1983-03-29 | 1984-10-11 | Meisei Electric Co Ltd | デ−タの無線伝送受信方式 |
US4513412A (en) * | 1983-04-25 | 1985-04-23 | At&T Bell Laboratories | Time division adaptive retransmission technique for portable radio telephones |
JPH0683127B2 (ja) * | 1985-07-22 | 1994-10-19 | 日本電気株式会社 | ダイバーシチ受信無線機 |
DE3612235A1 (de) * | 1986-04-11 | 1987-10-15 | Blaupunkt Werke Gmbh | Verfahren und schaltungsanordnung zum empfang von radiowellen mit mehreren antennen |
-
1989
- 1989-06-30 NO NO892720A patent/NO175659C/no unknown
- 1989-07-05 EP EP89112274A patent/EP0350007B1/de not_active Expired - Lifetime
- 1989-07-05 DE DE68922663T patent/DE68922663T2/de not_active Expired - Fee Related
- 1989-07-05 US US07/375,669 patent/US5161252A/en not_active Expired - Fee Related
- 1989-07-05 DK DK333389A patent/DK333389A/da not_active Application Discontinuation
- 1989-07-05 DE DE68927936T patent/DE68927936T2/de not_active Expired - Fee Related
- 1989-07-05 EP EP94111323A patent/EP0624006B1/de not_active Expired - Lifetime
- 1989-07-06 CA CA000604963A patent/CA1311802C/en not_active Expired - Fee Related
- 1989-07-06 FI FI893295A patent/FI893295A/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE68922663T2 (de) | 1995-10-05 |
DE68927936T2 (de) | 1997-07-17 |
US5161252A (en) | 1992-11-03 |
EP0350007A2 (de) | 1990-01-10 |
FI893295A0 (fi) | 1989-07-06 |
FI893295A (fi) | 1990-01-07 |
EP0350007B1 (de) | 1995-05-17 |
EP0624006B1 (de) | 1997-04-02 |
CA1311802C (en) | 1992-12-22 |
EP0624006A2 (de) | 1994-11-09 |
NO175659C (no) | 1994-11-09 |
EP0624006A3 (de) | 1995-01-04 |
NO175659B (de) | 1994-08-01 |
DE68927936D1 (de) | 1997-05-07 |
NO892720D0 (no) | 1989-06-30 |
EP0350007A3 (de) | 1992-09-09 |
DK333389D0 (da) | 1989-07-05 |
DK333389A (da) | 1990-01-07 |
NO892720L (no) | 1990-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |