Initial acquisition circuit
US6212222A · kind A · utility
8Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2000 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Jan 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/709
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In the identical spread code multiplex SS system, a delay correction unit and a multiplexer calculates the multiplexed square correlation value by matching the peak values and adding the square correlation values of all the multiplexed signals. The multiplexed signals are the signals obtained by multiplexing an RF signal in such manner that different specific delay times are respectively given to parallel transmission information sequences multiplied by identical spread codes. Therefore, code synchronization can be realized by using only one correlator for both the orthogonal and an in-phase components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.