Processor, modulators and transceivers for spread spectrum, CDMA, CSMA, OFDM, TDM, TDMA cross correlated and filtered systems
US7450628B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2006 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Sep 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03477
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Processors for processing, modulating, transmitting and receiving spread spectrum, CDMA, CSMA, OFDM, TDM, TDMA, filtered and cross-correlated signals. A first processor and filter for processing and filtering spread spectrum signals and a second processor for processing and filtering Time Division Multiplexed (TDM) or Time Division Multiple Access (TDMA) signals or for processing Orthogonal Frequency Division Multiplexed (OFDM) signals or a second processor for processing and shaping cross-correlated in-phase and quadrature-phase baseband signals and a selector for selecting and connecting either the first processor or the second processor processed signals to signal modulator and or transmitter. A first signal transmitter, for signal transmission in first Radio Frequency (RF) band and a second signal transmitter for signal transmission in second RF band of the processed signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.