Data communications system and hybrid time-code multiplexing method
US6590889B1 · kind B1 · utility
62Cited by
21References
67Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1999 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Mar 3, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5608
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A data communications system, particularly suited for shared or wireless communications channels, capable of accommodating terminals having different throughput capabilites by flexibly allocating cyclically rotated phases of a common code is disclosed. One or more shifts of a cyclic orthogonal code are assigned to a terminal. These codes are preferably cyclically padded to increase their tolerance to arbitrary time shifts, and the resulting codes are used to spread the signals for transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.