DE68927936D1 - Antennenschaltdiversity mit Hysterese - Google Patents

Antennenschaltdiversity mit Hysterese

Info

Publication number
DE68927936D1
DE68927936D1 DE68927936T DE68927936T DE68927936D1 DE 68927936 D1 DE68927936 D1 DE 68927936D1 DE 68927936 T DE68927936 T DE 68927936T DE 68927936 T DE68927936 T DE 68927936T DE 68927936 D1 DE68927936 D1 DE 68927936D1
Authority
DE
Germany
Prior art keywords
hysteresis
antenna switching
switching diversity
diversity
antenna
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
Application number
DE68927936T
Other languages
English (en)
Other versions
DE68927936T2 (de
Inventor
Harukazu Higuchi
Yoshizo Shibano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP32704188A external-priority patent/JPH02140023A/ja
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Application granted granted Critical
Publication of DE68927936D1 publication Critical patent/DE68927936D1/de
Publication of DE68927936T2 publication Critical patent/DE68927936T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE68927936T 1988-07-06 1989-07-05 Antennenschaltdiversity mit Hysterese Expired - Fee Related DE68927936T2 (de)

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
DE68927936D1 true DE68927936D1 (de) 1997-05-07
DE68927936T2 DE68927936T2 (de) 1997-07-17

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 Before (1)

Application Number Title Priority Date Filing Date
DE68922663T Expired - Fee Related DE68922663T2 (de) 1988-07-06 1989-07-05 Kommunikationssystem mit Antennen diversity.

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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
NO175659B (de) 1994-08-01
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
EP0624006B1 (de) 1997-04-02

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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