Direct-sequence spread-spectrum communication system with asynchronous despreading
US5243622A · kind A · utility
36Cited by
4References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 2, 1991 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Aug 2, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/70718
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A direct-sequence spread-spectrum communication system having a receiver that despreads a received signal that has been modulated with a pseudonoise code generated by a linear feedback shift register. The receiver despreads the received signal by multiplying it with a limited number of delayed replicas of the received signal. Despreading is thus performed without need for a locally generated pseudonoise code or a synchronizing clock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.