CA2139227A1 - Systeme de communication a etalement du spectre particulierement approprie aux communications par reseau rf - Google Patents
Systeme de communication a etalement du spectre particulierement approprie aux communications par reseau rfInfo
- Publication number
- CA2139227A1 CA2139227A1 CA002139227A CA2139227A CA2139227A1 CA 2139227 A1 CA2139227 A1 CA 2139227A1 CA 002139227 A CA002139227 A CA 002139227A CA 2139227 A CA2139227 A CA 2139227A CA 2139227 A1 CA2139227 A1 CA 2139227A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- reverse
- spread spectrum
- direct
- sequences
- 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.)
- Abandoned
Links
Classifications
-
- 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
- H04B1/709—Correlator structure
- H04B1/7093—Matched filter type
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/103—Chirp modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Glass Compositions (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US92333192A | 1992-07-31 | 1992-07-31 | |
| US07/923,331 | 1992-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2139227A1 true CA2139227A1 (fr) | 1994-02-17 |
Family
ID=25448515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002139227A Abandoned CA2139227A1 (fr) | 1992-07-31 | 1993-07-29 | Systeme de communication a etalement du spectre particulierement approprie aux communications par reseau rf |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0653133A4 (fr) |
| JP (1) | JPH07509592A (fr) |
| AU (1) | AU674695B2 (fr) |
| CA (1) | CA2139227A1 (fr) |
| WO (1) | WO1994003989A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5572438A (en) * | 1995-01-05 | 1996-11-05 | Teco Energy Management Services | Engery management and building automation system |
| DE19631360C2 (de) * | 1996-08-02 | 1998-06-04 | Siemens Ag | Teilnehmerendgeräte-Anschlußsystem für interaktive Telekommunikationsdienste |
| US5924486A (en) * | 1997-10-29 | 1999-07-20 | Tecom, Inc. | Environmental condition control and energy management system and method |
| KR100701110B1 (ko) | 2002-03-28 | 2007-03-30 | 로버트쇼 컨트롤즈 캄파니 | 에너지 관리 시스템 및 방법 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665474A (en) * | 1966-08-19 | 1972-05-23 | Amscat Corp | High density communications system |
| CH604409A5 (fr) * | 1977-05-17 | 1978-09-15 | Landis & Gyr Ag | |
| DE2952785A1 (de) * | 1979-01-03 | 1980-07-17 | Plessey Handel Investment Ag | Empfaenger fuer ein mit expandiertem signalspektrum arbeitendes nachrichtenuebertragungssystem |
| US4468792A (en) * | 1981-09-14 | 1984-08-28 | General Electric Company | Method and apparatus for data transmission using chirped frequency-shift-keying modulation |
| US4653076A (en) * | 1984-03-23 | 1987-03-24 | Sangamo Weston, Inc. | Timing signal correction system for use in direct sequence spread signal receiver |
| US5070500A (en) * | 1988-08-30 | 1991-12-03 | Tokyo Keiki Company Ltd. | Memory package system utilizing inductive coupling between memory module and read/write unit |
| US4969159A (en) * | 1989-03-22 | 1990-11-06 | Harris Corporation | Spread spectrum communication system employing composite spreading codes with matched filter demodulator |
| US5090024A (en) * | 1989-08-23 | 1992-02-18 | Intellon Corporation | Spread spectrum communications system for networks |
| US5132986A (en) * | 1989-12-22 | 1992-07-21 | Nec Home Electronics Ltd. | Csk communication system |
-
1993
- 1993-07-29 WO PCT/US1993/007125 patent/WO1994003989A1/fr not_active Ceased
- 1993-07-29 EP EP93918481A patent/EP0653133A4/fr not_active Withdrawn
- 1993-07-29 JP JP6505425A patent/JPH07509592A/ja active Pending
- 1993-07-29 CA CA002139227A patent/CA2139227A1/fr not_active Abandoned
- 1993-07-29 AU AU47912/93A patent/AU674695B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO1994003989A1 (fr) | 1994-02-17 |
| EP0653133A4 (fr) | 1998-07-08 |
| EP0653133A1 (fr) | 1995-05-17 |
| JPH07509592A (ja) | 1995-10-19 |
| AU674695B2 (en) | 1997-01-09 |
| AU4791293A (en) | 1994-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20000731 |