Spread spectrum communication system
US5966377A · kind A · utility
51Cited by
4References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1996 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Dec 19, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70703
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Low rate data and middle rate data are time division multiplexed independently according to their rates by a time division multiplexer so that their rates match the rate of high rate data which are not passed through the time division multiplexer. Subsequently, the entire data are converted into biorthogonal signals by biorthogonal signal generators (BORTs), and code division multiplexed by a code division multiplexer. The code division multiplexed signal undergoes modulation by a spreading modulator and a carrier modulator, and transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.