Self-correlating pseudo-noise pairing
US7447254B1 · kind B1 · utility
5Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2004 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Apr 27, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/16
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of transmitting communications codes is used in spread spectrum communications systems. The method includes transmitting a first pseudo-noise code, and transmitting a second pseudo-noise code, wherein the second pseudo-noise code is a time-reversed version of the first pseudo-noise code. A device includes a first shift register to store a first code and a second register to store a second code in a time-reversed version. A comparison circuit then compares the two codes and a result is output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.