GB2357677B - Spread spectrum communication system - Google Patents
Spread spectrum communication systemInfo
- Publication number
- GB2357677B GB2357677B GB0030963A GB0030963A GB2357677B GB 2357677 B GB2357677 B GB 2357677B GB 0030963 A GB0030963 A GB 0030963A GB 0030963 A GB0030963 A GB 0030963A GB 2357677 B GB2357677 B GB 2357677B
- Authority
- GB
- United Kingdom
- Prior art keywords
- communication system
- spread spectrum
- spectrum communication
- spread
- spectrum
- 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
- 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
- H04B1/7095—Sliding correlator 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
- H04B1/70718—Spread spectrum techniques using direct sequence modulation with asynchronous demodulation, i.e. not requiring code synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0022—PN, e.g. Kronecker
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9814757.2A GB9814757D0 (en) | 1998-07-07 | 1998-07-07 | Data link |
PCT/GB1999/002173 WO2000002327A1 (en) | 1998-07-07 | 1999-07-07 | Spread spectrum communication system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0030963D0 GB0030963D0 (en) | 2001-01-31 |
GB2357677A GB2357677A (en) | 2001-06-27 |
GB2357677B true GB2357677B (en) | 2003-09-24 |
Family
ID=10835122
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9814757.2A Ceased GB9814757D0 (en) | 1998-07-07 | 1998-07-07 | Data link |
GB0030963A Expired - Fee Related GB2357677B (en) | 1998-07-07 | 1999-07-07 | Spread spectrum communication system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9814757.2A Ceased GB9814757D0 (en) | 1998-07-07 | 1998-07-07 | Data link |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU4918499A (en) |
GB (2) | GB9814757D0 (en) |
WO (1) | WO2000002327A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0435593A2 (en) * | 1989-12-29 | 1991-07-03 | Xerox Corporation | Transmitted code clock code-matching synchronization for spread-spectrum communication systems |
US5048052A (en) * | 1989-02-07 | 1991-09-10 | Clarion Co., Ltd. | Spread spectrum communication device |
EP0713305A1 (en) * | 1994-11-16 | 1996-05-22 | Nec Corporation | Data rate detector for terminal station |
-
1998
- 1998-07-07 GB GBGB9814757.2A patent/GB9814757D0/en not_active Ceased
-
1999
- 1999-07-07 WO PCT/GB1999/002173 patent/WO2000002327A1/en active Application Filing
- 1999-07-07 GB GB0030963A patent/GB2357677B/en not_active Expired - Fee Related
- 1999-07-07 AU AU49184/99A patent/AU4918499A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5048052A (en) * | 1989-02-07 | 1991-09-10 | Clarion Co., Ltd. | Spread spectrum communication device |
EP0435593A2 (en) * | 1989-12-29 | 1991-07-03 | Xerox Corporation | Transmitted code clock code-matching synchronization for spread-spectrum communication systems |
EP0713305A1 (en) * | 1994-11-16 | 1996-05-22 | Nec Corporation | Data rate detector for terminal station |
Also Published As
Publication number | Publication date |
---|---|
GB9814757D0 (en) | 1998-09-02 |
GB2357677A (en) | 2001-06-27 |
AU4918499A (en) | 2000-01-24 |
WO2000002327A1 (en) | 2000-01-13 |
GB0030963D0 (en) | 2001-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20150707 |