I/Q demodulator and I/Q signal sampling method thereof
US7221718B2 · kind B2 · utility
1Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2003 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Mar 3, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An I/Q demodulator optimized with a minimum amount of hardware. First and second multiplexers generate I and Q signals with respect to an input data signal; and first and second 2-decimation units decimate the I and Q signals generated by the first and second multiplexers, to output effective I and Q signals. A filtering unit filters the effective I and Q signals. As a result, a size of the hardware is reduced, and an operation frequency of the filter is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.