Variable rate transmitting method and apparatus using bi-orthogonal functions for variable rate transmission rates above a predetermined value
US6628667B1 · kind B1 · utility
70Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1999 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Jan 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/0048
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Described is a variable rate transmission apparatus for spread modulating data signals by using spread code sequences and transmitting the processed signals. The variable rate transmission apparatus spread modulates the data signals, upon the condition that the transmission rate of each data signal is greater than or equal to a predetermined transmission rate, in a binary sequence using bi-orthogonal signals and transmits the processed signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.