NO175659B - - Google Patents
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- Publication number
- NO175659B NO175659B NO892720A NO892720A NO175659B NO 175659 B NO175659 B NO 175659B NO 892720 A NO892720 A NO 892720A NO 892720 A NO892720 A NO 892720A NO 175659 B NO175659 B NO 175659B
- Authority
- NO
- Norway
- Prior art keywords
- signal
- switching
- level
- receiver
- equipment
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims description 44
- 238000012544 monitoring process Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 21
- 230000004044 response Effects 0.000 claims description 17
- 238000005562 fading Methods 0.000 claims description 14
- 230000008054 signal transmission Effects 0.000 claims description 10
- 108010076504 Protein Sorting Signals Proteins 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 25
- 238000010586 diagram Methods 0.000 description 16
- 230000006870 function Effects 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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 (4)
Publication Number | Publication Date |
---|---|
NO892720D0 NO892720D0 (no) | 1989-06-30 |
NO892720L NO892720L (no) | 1990-01-08 |
NO175659B true NO175659B (de) | 1994-08-01 |
NO175659C NO175659C (no) | 1994-11-09 |
Family
ID=27310529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO892720A NO175659C (no) | 1988-07-06 | 1989-06-30 | Kommunikasjonssystem med multippelmottagning og mottagerapparat for diversitetssignaler |
Country Status (7)
Country | Link |
---|---|
US (1) | US5161252A (de) |
EP (2) | EP0624006B1 (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 |
---|---|---|---|---|
ATE131167T1 (de) * | 1990-01-25 | 1995-12-15 | Pharmacia Spa | Verfahren zur herstellung von ergolinderivaten. |
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 |
ES2085800T3 (es) * | 1992-10-26 | 1996-06-01 | Siemens Ag | Procedimiento y disposicion para la diversidad de seleccion de antenas en un sistema telefonico inalambrico. |
DE4326523A1 (de) * | 1993-08-06 | 1995-02-09 | Siemens Ag | Universelles Mobil-Telekommunikationssystem |
DE69432683T2 (de) * | 1993-09-30 | 2004-03-11 | Conexant Systems, Inc., Newport Beach | Basisstation für ein digitales schnurloses Telefon mit Mehrfachantennenanordnung |
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 |
EP2541799B1 (de) * | 2004-06-17 | 2014-10-08 | Harman Becker Automotive Systems GmbH | Diversität mit Identifizierung spezifischer Antenneneigenschaften und deren Bewertung |
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 US US07/375,669 patent/US5161252A/en not_active Expired - Fee Related
- 1989-07-05 DE DE68922663T patent/DE68922663T2/de 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
- 1989-07-05 EP EP89112274A patent/EP0350007B1/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 |
---|---|
EP0350007A3 (de) | 1992-09-09 |
EP0350007A2 (de) | 1990-01-10 |
NO175659C (no) | 1994-11-09 |
NO892720L (no) | 1990-01-08 |
NO892720D0 (no) | 1989-06-30 |
EP0624006A2 (de) | 1994-11-09 |
DE68927936T2 (de) | 1997-07-17 |
FI893295A (fi) | 1990-01-07 |
DK333389D0 (da) | 1989-07-05 |
DE68922663T2 (de) | 1995-10-05 |
EP0350007B1 (de) | 1995-05-17 |
EP0624006A3 (de) | 1995-01-04 |
US5161252A (en) | 1992-11-03 |
DK333389A (da) | 1990-01-07 |
FI893295A0 (fi) | 1989-07-06 |
DE68922663D1 (de) | 1995-06-22 |
CA1311802C (en) | 1992-12-22 |
DE68927936D1 (de) | 1997-05-07 |
EP0624006B1 (de) | 1997-04-02 |
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