Spread-spectrum communication system
US4691326A · kind A · utility
118Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1985 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Apr 11, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/70712
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A receiver in a spread-spectrum communication system is adapted to receive a signal which is modulated by a binary code modulated by a binary code or a data, and includes a matched filter which detects a correlation between the received signal and a reference signal modulated by a reference code produced by a code generator. When the received code supplied from the matched filter coincides with or is slightly displaced from the reference code, a pulse is produced from a correlation spike waveform with a relatively large amplitude to extract a desired pulse from the pulse and use it to initialize the reference code generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.