DE3787724D1 - Spreizspektrummultiplex-übertragungssystem. - Google Patents
Spreizspektrummultiplex-übertragungssystem.Info
- Publication number
- DE3787724D1 DE3787724D1 DE87900788T DE3787724T DE3787724D1 DE 3787724 D1 DE3787724 D1 DE 3787724D1 DE 87900788 T DE87900788 T DE 87900788T DE 3787724 T DE3787724 T DE 3787724T DE 3787724 D1 DE3787724 D1 DE 3787724D1
- Authority
- DE
- Germany
- Prior art keywords
- transmission system
- multiplex transmission
- spreading spectrum
- spectrum multiplex
- spreading
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPH442486 | 1986-02-04 | ||
PCT/AU1987/000020 WO1987004883A1 (en) | 1986-02-04 | 1987-01-27 | Spread-spectrum multiplexed transmission system |
Publications (3)
Publication Number | Publication Date |
---|---|
DE3787724D1 true DE3787724D1 (de) | 1993-11-11 |
DE3787724T2 DE3787724T2 (de) | 1994-02-03 |
DE3787724T3 DE3787724T3 (de) | 2001-02-01 |
Family
ID=3771454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3787724T Expired - Fee Related DE3787724T3 (de) | 1986-02-04 | 1987-01-27 | Spreizspektrummultiplex-übertragungssystem. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5063560A (de) |
EP (1) | EP0292487B2 (de) |
JP (1) | JPH07123233B2 (de) |
AU (1) | AU582038B2 (de) |
CA (1) | CA1319183C (de) |
DE (1) | DE3787724T3 (de) |
WO (1) | WO1987004883A1 (de) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2064898A1 (en) * | 1987-01-27 | 1991-03-02 | Michael J. Yerbury | Spread-spectrum multiplexed transmission system |
AU638487B2 (en) * | 1989-09-01 | 1993-07-01 | Advanced Systems Research Pty Limited | Improvements in a spread-spectrum multiplexed transmission system |
JPH05506505A (ja) * | 1990-04-06 | 1993-09-22 | ラッセル,ヴィック | 積分変調 |
JPH0777362B2 (ja) * | 1990-08-28 | 1995-08-16 | クラリオン株式会社 | スペクトラム拡散通信装置 |
JPH04347943A (ja) * | 1990-11-13 | 1992-12-03 | Ricoh Co Ltd | スペクトル拡散通信方式及び同期方式並びに変復調方式 |
US5365544A (en) * | 1990-12-05 | 1994-11-15 | Interdigital Technology Corporation | CDMA communications and geolocation system and method |
US5506864A (en) * | 1990-12-05 | 1996-04-09 | Interdigital Technology Corporation | CDMA communications and geolocation system and method |
US5790587A (en) * | 1991-05-13 | 1998-08-04 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5694414A (en) * | 1991-05-13 | 1997-12-02 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5796772A (en) * | 1991-05-13 | 1998-08-18 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5887020A (en) * | 1991-05-13 | 1999-03-23 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5815525A (en) * | 1991-05-13 | 1998-09-29 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5285469A (en) | 1991-06-03 | 1994-02-08 | Omnipoint Data Corporation | Spread spectrum wireless telephone system |
US5282222A (en) * | 1992-03-31 | 1994-01-25 | Michel Fattouche | Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum |
USRE37802E1 (en) | 1992-03-31 | 2002-07-23 | Wi-Lan Inc. | Multicode direct sequence spread spectrum |
US5430759A (en) * | 1992-08-20 | 1995-07-04 | Nexus 1994 Limited | Low-power frequency-hopped spread spectrum reverse paging system |
US5335246A (en) * | 1992-08-20 | 1994-08-02 | Nexus Telecommunication Systems, Ltd. | Pager with reverse paging facility |
DE69325224T2 (de) * | 1992-09-24 | 1999-11-11 | Canon Kk | Verfahren zur Frequenzkammspreizspektrummodulation |
US5533046A (en) * | 1992-10-08 | 1996-07-02 | Lund; Vanmetre | Spread spectrum communication system |
US5596599A (en) * | 1992-12-04 | 1997-01-21 | Canon Kabushiki Kaisha | Spread spectrum receiving apparatus |
FI94819C (fi) * | 1993-06-10 | 1995-10-25 | Nokia Telecommunications Oy | Tiedonsiirtomenetelmä ja CDMA/FDMA-radiojärjestelmä |
US5530452A (en) * | 1993-10-21 | 1996-06-25 | Nexus Telecommunication Systems Ltd. | Method of synchronizing spread spectrum radio transmitters |
KR100217715B1 (ko) * | 1993-12-31 | 1999-09-01 | 윤종용 | 직접확산/부호분할 다중접근 시스템에서의 업-링크 접근 시스템 |
US5475707A (en) * | 1994-02-28 | 1995-12-12 | Westinghouse Norden Systems | Broadband communications system |
US5742583A (en) | 1994-11-03 | 1998-04-21 | Omnipoint Corporation | Antenna diversity techniques |
US5784403A (en) * | 1995-02-03 | 1998-07-21 | Omnipoint Corporation | Spread spectrum correlation using saw device |
US5568508A (en) * | 1995-03-20 | 1996-10-22 | General Electric Company | Interlaced geometric harmonic modulation |
AU705213B2 (en) * | 1995-06-06 | 1999-05-20 | Terion, Inc. | Determining propagating and clear frequency in wireless data communications network |
US5589844A (en) * | 1995-06-06 | 1996-12-31 | Flash Comm, Inc. | Automatic antenna tuner for low-cost mobile radio |
US5765112A (en) * | 1995-06-06 | 1998-06-09 | Flash Comm. Inc. | Low cost wide area network for data communication using outbound message specifying inbound message time and frequency |
US5734963A (en) * | 1995-06-06 | 1998-03-31 | Flash Comm, Inc. | Remote initiated messaging apparatus and method in a two way wireless data communications network |
US5825807A (en) * | 1995-11-06 | 1998-10-20 | Kumar; Derek D. | System and method for multiplexing a spread spectrum communication system |
US5966401A (en) * | 1995-12-27 | 1999-10-12 | Kumar; Derek D. | RF simplex spread spectrum receiver and method with symbol deinterleaving prior to bit estimating |
US5731781A (en) * | 1996-05-20 | 1998-03-24 | Delco Electronics Corp. | Continuous wave wideband precision ranging radar |
US5784366A (en) * | 1996-08-27 | 1998-07-21 | Transsky Corp. | Wideband code-division-multiple access system and method |
US6192068B1 (en) | 1996-10-03 | 2001-02-20 | Wi-Lan Inc. | Multicode spread spectrum communications system |
JP3063648B2 (ja) * | 1996-10-28 | 2000-07-12 | ケイディディ株式会社 | スペクトラム拡散通信システム |
US6137611A (en) * | 1997-09-27 | 2000-10-24 | Lucent Technologies Inc. | Suppression of coherent rayleigh noise in bidirectional communication systems |
GB2332822B (en) * | 1997-12-23 | 2002-08-28 | Northern Telecom Ltd | Communication device having a wideband receiver and operating method therefor |
US6108327A (en) * | 1998-02-02 | 2000-08-22 | Golden Bridge Technology, Inc. | Orthogonal spread spectrum system |
DE69807757T2 (de) * | 1998-06-04 | 2003-06-05 | Harris Corp | System und methode zur kommunikation mit mehreren entfernten sendern |
US7327775B1 (en) * | 1999-12-23 | 2008-02-05 | Nokia Corporation | CDMA receiver |
US7024331B2 (en) | 2000-11-15 | 2006-04-04 | Scientific Generics Limited | Tag tracking |
EP1340096A1 (de) | 2000-11-15 | 2003-09-03 | Racetrace Inc. | Verfolgung einer identifizierungseinrichtung |
WO2003096055A2 (en) * | 2002-05-13 | 2003-11-20 | The Charles Stark Draper Laboratory, Inc. | Low-cost, low-power geolocation system |
US6996197B2 (en) * | 2003-09-17 | 2006-02-07 | Motorola, Inc. | Method and apparatus for reducing interference within a communication system |
US7973716B2 (en) * | 2005-01-19 | 2011-07-05 | The Charles Stark Draper Laboratory, Inc. | Systems and methods for transparency mapping using multipath signals |
WO2006088599A1 (en) | 2005-01-19 | 2006-08-24 | The Charles Stark Draper Laboratory, Inc. | Systems and methods for positioning using multipath signals |
US8279119B2 (en) | 2005-01-19 | 2012-10-02 | The Charles Stark Draper Laboratory, Inc. | Systems and methods for transparency mapping using multipath signals |
JP4498381B2 (ja) * | 2007-04-26 | 2010-07-07 | 株式会社東芝 | 無線通信方法、無線送信装置及び無線受信装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3714573A (en) | 1970-05-06 | 1973-01-30 | Hazeltine Corp | Spread-spectrum position monitoring system |
JPS581580B2 (ja) * | 1978-09-11 | 1983-01-12 | 日本電信電話株式会社 | 多重化スペクトラム拡散変調方式 |
US4301530A (en) * | 1978-12-18 | 1981-11-17 | The United States Of America As Represented By The Secretary Of The Army | Orthogonal spread spectrum time division multiple accessing mobile subscriber access system |
JPS592458A (ja) † | 1982-06-28 | 1984-01-09 | Hitachi Ltd | スペクトラム拡散通信システム |
US4494228A (en) * | 1982-08-12 | 1985-01-15 | The United States Of America As Represented By The Secretary Of The Army | Orthogonal code division multiple access communications systems |
US4644560A (en) * | 1982-08-13 | 1987-02-17 | Hazeltine Corporation | Intranetwork code division multiple access communication system |
GB2125654B (en) * | 1982-08-13 | 1986-01-29 | Hazeltine Corp | Intranetwork code division multiple access communication system |
US4460992A (en) * | 1982-11-04 | 1984-07-17 | The United States Of America As Represented By The Secretary Of The Army | Orthogonal CDMA system utilizing direct sequence pseudo noise codes |
US4511885A (en) * | 1983-11-28 | 1985-04-16 | The United States Of America As Represented By The Secretary Of The Army | Code compressor for multilevel interleaved multiplexed noise codes |
US4601047A (en) * | 1984-03-23 | 1986-07-15 | Sangamo Weston, Inc. | Code division multiplexer using direct sequence spread spectrum signal processing |
US4644523A (en) * | 1984-03-23 | 1987-02-17 | Sangamo Weston, Inc. | System for improving signal-to-noise ratio in a direct sequence spread spectrum signal receiver |
DE3447107A1 (de) * | 1984-12-22 | 1986-06-26 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur nachrichtenuebertragung in einem digitalen funkuebertragungssystem |
-
1987
- 1987-01-27 US US07/265,858 patent/US5063560A/en not_active Expired - Lifetime
- 1987-01-27 WO PCT/AU1987/000020 patent/WO1987004883A1/en active IP Right Grant
- 1987-01-27 JP JP62500903A patent/JPH07123233B2/ja not_active Expired - Fee Related
- 1987-01-27 AU AU68940/87A patent/AU582038B2/en not_active Ceased
- 1987-01-27 DE DE3787724T patent/DE3787724T3/de not_active Expired - Fee Related
- 1987-01-27 EP EP87900788A patent/EP0292487B2/de not_active Expired - Lifetime
- 1987-01-29 CA CA000528509A patent/CA1319183C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0292487B1 (de) | 1993-10-06 |
DE3787724T3 (de) | 2001-02-01 |
AU582038B2 (en) | 1989-03-09 |
US5063560A (en) | 1991-11-05 |
DE3787724T2 (de) | 1994-02-03 |
EP0292487B2 (de) | 2000-05-24 |
JPH07123233B2 (ja) | 1995-12-25 |
WO1987004883A1 (en) | 1987-08-13 |
EP0292487A4 (en) | 1990-12-12 |
CA1319183C (en) | 1993-06-15 |
JPS63502868A (ja) | 1988-10-20 |
EP0292487A1 (de) | 1988-11-30 |
AU6894087A (en) | 1987-08-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |