SE8904132D0 - Spatialdiversitetssystem - Google Patents
SpatialdiversitetssystemInfo
- Publication number
- SE8904132D0 SE8904132D0 SE8904132A SE8904132A SE8904132D0 SE 8904132 D0 SE8904132 D0 SE 8904132D0 SE 8904132 A SE8904132 A SE 8904132A SE 8904132 A SE8904132 A SE 8904132A SE 8904132 D0 SE8904132 D0 SE 8904132D0
- Authority
- SE
- Sweden
- Prior art keywords
- quality
- unit
- spatial diversity
- antenna
- audio signals
- Prior art date
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)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Radio Relay Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/281,186 US4953197A (en) | 1988-12-08 | 1988-12-08 | Combination spatial diversity system |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8904132D0 true SE8904132D0 (sv) | 1989-12-07 |
SE8904132L SE8904132L (sv) | 1990-06-09 |
SE506088C2 SE506088C2 (sv) | 1997-11-10 |
Family
ID=23076303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8904132A SE506088C2 (sv) | 1988-12-08 | 1989-12-07 | Spatialdiversitetssystem |
Country Status (22)
Country | Link |
---|---|
US (1) | US4953197A (sv) |
JP (1) | JPH02244913A (sv) |
CN (1) | CN1014196B (sv) |
AU (1) | AU606300B2 (sv) |
BE (1) | BE1003343A3 (sv) |
BR (1) | BR8906366A (sv) |
CA (1) | CA2004808C (sv) |
CZ (1) | CZ286014B6 (sv) |
DE (1) | DE3940690C2 (sv) |
ES (1) | ES2017869A6 (sv) |
FI (1) | FI107852B (sv) |
FR (1) | FR2640446B1 (sv) |
GB (1) | GB2227910B (sv) |
HU (1) | HU209626B (sv) |
IL (1) | IL92520A0 (sv) |
IT (1) | IT1239544B (sv) |
NL (1) | NL193711C (sv) |
NO (1) | NO178879C (sv) |
NZ (1) | NZ231618A (sv) |
PL (1) | PL164583B1 (sv) |
SE (1) | SE506088C2 (sv) |
ZA (1) | ZA90428B (sv) |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4713808A (en) * | 1985-11-27 | 1987-12-15 | A T & E Corporation | Watch pager system and communication protocol |
US5097484A (en) * | 1988-10-12 | 1992-03-17 | Sumitomo Electric Industries, Ltd. | Diversity transmission and reception method and equipment |
US5140627A (en) * | 1990-10-09 | 1992-08-18 | Telefonaktiebolaget L M Ericsson | Handoff procedure that minimizes disturbances to dtmf signalling in a cellular radio system |
US5373548A (en) * | 1991-01-04 | 1994-12-13 | Thomson Consumer Electronics, Inc. | Out-of-range warning system for cordless telephone |
WO1993022881A1 (en) * | 1992-04-24 | 1993-11-11 | Motorola Inc. | Method and apparatus for determining signal transmission quality levels of a transmitted signal |
DE69327825T2 (de) * | 1992-08-10 | 2000-10-12 | Lucent Technologies Inc., Murray Hill | Funkübertragungssystem und Funkbasisstation zur Verwendung in einem derartigen System |
US5561673A (en) * | 1993-04-16 | 1996-10-01 | Matsushita Electric Industrial Co., Ltd. | Antenna switched diversity reciever |
US5507035A (en) * | 1993-04-30 | 1996-04-09 | International Business Machines Corporation | Diversity transmission strategy in mobile/indoor cellula radio communications |
FI109737B (sv) * | 1993-08-25 | 2002-09-30 | Nokia Corp | Förfarande och system för styrning av säkring av mottagarnas stamfrekvenscentralkanaler vid en digital överföringsanordning |
US6094575A (en) * | 1993-11-01 | 2000-07-25 | Omnipoint Corporation | Communication system and method |
US6088590A (en) * | 1993-11-01 | 2000-07-11 | Omnipoint Corporation | Method and system for mobile controlled handoff and link maintenance in spread spectrum communication |
US6005856A (en) * | 1993-11-01 | 1999-12-21 | Omnipoint Corporation | Communication protocol for spread spectrum wireless communication system |
US5586170A (en) * | 1994-08-19 | 1996-12-17 | Georgia Tech Research Corporation | Cellular devices, systems and methods using intercell macro-diversity and dynamic channel allocation |
US6334219B1 (en) | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
US5742583A (en) | 1994-11-03 | 1998-04-21 | Omnipoint Corporation | Antenna diversity techniques |
USRE42236E1 (en) | 1995-02-06 | 2011-03-22 | Adc Telecommunications, Inc. | Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing |
US7280564B1 (en) | 1995-02-06 | 2007-10-09 | Adc Telecommunications, Inc. | Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing |
US5781612A (en) * | 1995-03-10 | 1998-07-14 | Northern Telecom Limited | Radio terminal interfaces for voice and data telecommunications, and methods for their operation |
US5845216A (en) * | 1995-05-30 | 1998-12-01 | Sierra Wireless, Inc. | Optimized companding for communication over cellular systems |
US5802046A (en) * | 1995-06-05 | 1998-09-01 | Omnipoint Corporation | Efficient time division duplex communication system with interleaved format and timing adjustment control |
US5745484A (en) | 1995-06-05 | 1998-04-28 | Omnipoint Corporation | Efficient communication system using time division multiplexing and timing adjustment control |
US5689502A (en) * | 1995-06-05 | 1997-11-18 | Omnipoint Corporation | Efficient frequency division duplex communication system with interleaved format and timing adjustment control |
US5959980A (en) * | 1995-06-05 | 1999-09-28 | Omnipoint Corporation | Timing adjustment control for efficient time division duplex communication |
US5732360A (en) * | 1995-09-08 | 1998-03-24 | At & T Wireless Services And Atmel Corp | Mobile telecommunication device and method used for changing wireless communication between base stations of different kinds |
US5675629A (en) * | 1995-09-08 | 1997-10-07 | At&T | Cordless cellular system base station |
US5911120A (en) * | 1995-09-08 | 1999-06-08 | At&T Wireless Services | Wireless communication system having mobile stations establish a communication link through the base station without using a landline or regional cellular network and without a call in progress |
CA2188845A1 (en) * | 1996-10-25 | 1998-04-25 | Stephen Ross Todd | Selection of an antenna operating in diversity |
EP0876045B1 (en) * | 1997-04-28 | 2003-09-10 | Nortel Networks Limited | Method and system for verifying and storing call related records in a telecommunications network |
DE19743123B4 (de) * | 1997-09-30 | 2005-11-24 | Harman Becker Automotive Systems (Xsys Division) Gmbh | Verfahren und Schaltungsanordnung zur Auswahl eines von mehreren Empfängern einer Diversity-Empfangsanlage |
EP0999669A1 (en) * | 1998-11-06 | 2000-05-10 | Nortel Matra Cellular | Method and apparatus for diversity reception of user messages with different forward error correction |
DE19852091C1 (de) * | 1998-11-12 | 2000-05-25 | Deutsche Telekom Mobil | Verfahren und Einrichtung zur Verbesserung der Audioqualität in einem Mobilfunknetz |
US6947469B2 (en) | 1999-05-07 | 2005-09-20 | Intel Corporation | Method and Apparatus for wireless spread spectrum communication with preamble processing period |
US6758810B2 (en) * | 2000-01-21 | 2004-07-06 | Medtronic Minimed, Inc. | Ambulatory medical apparatus and method using a robust communication protocol |
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 |
JP5021114B2 (ja) | 2000-09-07 | 2012-09-05 | ソニー株式会社 | 無線中継システム及び方法 |
GB2370724B (en) * | 2000-12-21 | 2004-07-14 | Ubinetics Ltd | Personal wireless communications apparatus |
US6961545B2 (en) * | 2001-04-09 | 2005-11-01 | Atheros Communications, Inc. | Method and system for providing antenna diversity |
JP4043850B2 (ja) * | 2002-06-03 | 2008-02-06 | 松下電器産業株式会社 | ダイバシティ切替装置 |
US6930602B2 (en) * | 2003-04-25 | 2005-08-16 | Medtronic, Inc. | Coaxial cable antenna for communication with implanted medical devices |
US7203549B2 (en) * | 2003-10-02 | 2007-04-10 | Medtronic, Inc. | Medical device programmer with internal antenna and display |
US20050075685A1 (en) * | 2003-10-02 | 2005-04-07 | Forsberg John W. | Medical device programmer with infrared communication |
US7561921B2 (en) * | 2003-10-02 | 2009-07-14 | Medtronic, Inc. | Neurostimulator programmer with internal antenna |
US7272445B2 (en) * | 2003-10-02 | 2007-09-18 | Medtronic, Inc. | Medical device programmer with faceplate |
US7991479B2 (en) * | 2003-10-02 | 2011-08-02 | Medtronic, Inc. | Neurostimulator programmer with clothing attachable antenna |
US7729766B2 (en) * | 2003-10-02 | 2010-06-01 | Medtronic, Inc. | Circuit board construction for handheld programmer |
US7263406B2 (en) | 2003-10-02 | 2007-08-28 | Medtronic, Inc. | Medical device programmer with selective disablement of display during telemetry |
US7706768B2 (en) * | 2006-08-02 | 2010-04-27 | Intel Corporation | Diversity switching |
EP2341652B1 (en) * | 2010-01-05 | 2016-08-17 | Alcatel Lucent | Reception of a diversity-protected data flow in a radio communication network |
US8706058B2 (en) | 2011-03-24 | 2014-04-22 | Honeywell International Inc. | RF data transfer in a spherical cavity |
US9813262B2 (en) | 2012-12-03 | 2017-11-07 | Google Technology Holdings LLC | Method and apparatus for selectively transmitting data using spatial diversity |
US9591508B2 (en) | 2012-12-20 | 2017-03-07 | Google Technology Holdings LLC | Methods and apparatus for transmitting data between different peer-to-peer communication groups |
US9979531B2 (en) | 2013-01-03 | 2018-05-22 | Google Technology Holdings LLC | Method and apparatus for tuning a communication device for multi band operation |
US10229697B2 (en) | 2013-03-12 | 2019-03-12 | Google Technology Holdings LLC | Apparatus and method for beamforming to obtain voice and noise signals |
US9549290B2 (en) | 2013-12-19 | 2017-01-17 | Google Technology Holdings LLC | Method and apparatus for determining direction information for a wireless device |
EP3454575B1 (en) * | 2017-09-07 | 2020-06-24 | Oticon A/s | Power management in low power wireless link in a hearing aid system |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3328698A (en) * | 1963-06-28 | 1967-06-27 | Itt | Selector for choosing the strongest signal including means for inhibiting all signals below a selected level |
DE2360929C2 (de) * | 1973-12-06 | 1975-07-17 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Auswahl eines Diversitykanals über den Daten in Form von Bits übertragen werden |
JPS5727629B2 (sv) * | 1973-12-19 | 1982-06-11 | ||
CA1065020A (en) * | 1974-06-27 | 1979-10-23 | William L. Hatton | High reliability diversity communications system |
JPS5119912A (en) * | 1974-08-12 | 1976-02-17 | Mitsubishi Electric Corp | Oh kaisendaibaashiteihoshikino kaisenkirikaehoshiki |
JPS5147313A (sv) * | 1974-10-21 | 1976-04-22 | Nippon Telegraph & Telephone | |
JPS5542790B2 (sv) * | 1975-01-09 | 1980-11-01 | ||
JPS51112210A (en) * | 1975-03-28 | 1976-10-04 | Hitachi Ltd | Mobile communication equipment |
US4028627A (en) * | 1975-12-29 | 1977-06-07 | Motorola, Inc. | Sample and hold valley detector |
JPS5428669A (en) * | 1977-08-08 | 1979-03-03 | Nec Corp | Noise measuring circuit |
US4214213A (en) * | 1977-10-25 | 1980-07-22 | Rca Corporation | Signal selecting system |
JPS585617B2 (ja) * | 1978-04-05 | 1983-02-01 | 株式会社日立国際電気 | デイジタル伝送のダイバ−シチ送受信方法 |
DE3006990C2 (de) * | 1980-02-25 | 1984-10-11 | Ivan Grigor'evič Leningrad Kirienko | Einrichtung zur automatischen Antennenumschaltung bei Mehrfachempfang |
DE3015087A1 (de) * | 1980-04-19 | 1981-10-22 | Robert Bosch Gmbh, 7000 Stuttgart | Sende/empfangsweg-ueberwachungseinrichtung |
US4383332A (en) * | 1980-11-21 | 1983-05-10 | Bell Telephone Laboratories, Incorporated | High capacity digital mobile radio system |
US4477809A (en) * | 1982-06-18 | 1984-10-16 | General Electric Company | Method for random-access radio-frequency data communications |
US4513412A (en) * | 1983-04-25 | 1985-04-23 | At&T Bell Laboratories | Time division adaptive retransmission technique for portable radio telephones |
JPS60214641A (ja) * | 1984-04-10 | 1985-10-26 | Nec Corp | 時分割多方向通信のスペース・ダイバシティ通信方式 |
US4644561A (en) * | 1985-03-20 | 1987-02-17 | International Mobile Machines Corp. | Modem for RF subscriber telephone system |
US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
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 |
US4704734A (en) * | 1986-02-18 | 1987-11-03 | Motorola, Inc. | Method and apparatus for signal strength measurement and antenna selection in cellular radiotelephone systems |
JPH0779299B2 (ja) * | 1986-08-30 | 1995-08-23 | 日本電気株式会社 | 携帯無線機 |
US4777633A (en) * | 1987-08-14 | 1988-10-11 | International Mobile Machines Corp. | Base station for wireless digital telephone system |
US4779262A (en) * | 1986-10-21 | 1988-10-18 | International Mobile Machines Corp. | Connection of subscriber communication network base station to external information network |
-
1988
- 1988-12-08 US US07/281,186 patent/US4953197A/en not_active Expired - Lifetime
-
1989
- 1989-12-01 IL IL92520A patent/IL92520A0/xx not_active IP Right Cessation
- 1989-12-04 AU AU45852/89A patent/AU606300B2/en not_active Expired
- 1989-12-04 NZ NZ231618A patent/NZ231618A/xx unknown
- 1989-12-04 GB GB8927341A patent/GB2227910B/en not_active Expired - Lifetime
- 1989-12-04 ES ES8904126A patent/ES2017869A6/es not_active Expired - Fee Related
- 1989-12-05 FI FI895813A patent/FI107852B/sv active IP Right Grant
- 1989-12-06 CA CA002004808A patent/CA2004808C/en not_active Expired - Lifetime
- 1989-12-06 NO NO894893A patent/NO178879C/no not_active IP Right Cessation
- 1989-12-06 IT IT48631A patent/IT1239544B/it active IP Right Grant
- 1989-12-07 SE SE8904132A patent/SE506088C2/sv unknown
- 1989-12-08 DE DE3940690A patent/DE3940690C2/de not_active Expired - Lifetime
- 1989-12-08 FR FR898916286A patent/FR2640446B1/fr not_active Expired - Lifetime
- 1989-12-08 JP JP1317938A patent/JPH02244913A/ja active Pending
- 1989-12-08 NL NL8903028A patent/NL193711C/nl not_active IP Right Cessation
- 1989-12-08 BR BR898906366A patent/BR8906366A/pt not_active IP Right Cessation
- 1989-12-08 CN CN89109108A patent/CN1014196B/zh not_active Expired
- 1989-12-08 CZ CS896956A patent/CZ286014B6/cs not_active IP Right Cessation
- 1989-12-08 HU HU896471A patent/HU209626B/hu unknown
- 1989-12-08 PL PL89282680A patent/PL164583B1/pl unknown
-
1990
- 1990-01-22 ZA ZA90428A patent/ZA90428B/xx unknown
- 1990-01-23 BE BE9000079A patent/BE1003343A3/fr not_active IP Right Cessation
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8904132D0 (sv) | Spatialdiversitetssystem | |
FI951935A0 (sv) | Digitalt system | |
DK0767994T3 (da) | Digitalt kommunikationssystem | |
CA2305586A1 (en) | Positioning system for digital telephone networks | |
KR940704090A (ko) | 공간분할 다중 액세스 무선통신장치 및 방법(spatial division multiple access wireless communication systems) | |
SE9503394D0 (sv) | Radiostation | |
EP0782290A3 (en) | Optical communication method and optical communication system | |
NO993234D0 (no) | FremgangsmÕte for valg av et signal, samt celledelt radiosystem | |
FI871843A0 (fi) | Anordning och foerfarande foer aostadkommande av foerbindelse i kortvaogsradionaet. | |
SE9500170L (sv) | System och förfarande för lastreducering i ett mobilt kommunikationssystem och ett mobilt kommunikationssystem | |
ATE2369T1 (de) | Funknetz. | |
NO902580L (no) | Rele-base for kommunikasjonssystem basert paa radiotelefoni | |
MY105799A (en) | Combination spatial diversity system | |
PT92892A (pt) | Sistema de diversidade de espaco de combinacao | |
AR033636A1 (es) | Un aparato para procesar senales para ser usado en un sistema de comunicaciones inalambrico | |
KR910016160A (ko) | 무선전화기 시스템용 공간상위 시스템 | |
KR920005534A (ko) | 2중화루우프형상 전송장치 | |
ATE7638T1 (de) | Sende-empfangs-diversity-anlage. | |
NO891136D0 (no) | Mottager for radiolinjeanlegg med romlig diversitetsmottagning. | |
YU17190A (sh) | Sistem kombinacionog prostornog diverzitnog prijema | |
FI911255A (sv) | Mottagningsförfarande och mottagarenhet särskilt för en radiolänk |