Multiple input multiple output signal receiving apparatus with optimized performance
US7937052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2007 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Sep 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0868
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiple input multiple output signal receiving apparatus includes a first antenna configured to receive a first radio frequency (RF) signal, a second antenna configured to receive a second RF signal, a superheterodyne receiver, a direct conversion receiver, and an antenna switching module. The superheterodyne receiver is configured to convert one or both of the first and second RF signals into at least one first analog signal. The direct conversion receiver is configured to convert one or both of the first and second RF signals into at least one second analog signal. The antenna switching module couples the first and second antennas to the superheterodyne receiver and the direct conversion receiver, and is configured to selectively direct the first and second RF signals to the superheterodyne receiver and/or the direct conversion receiver, depending on an antenna switch control signal indicating a signal quality derived from the first and second analog signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.