Diversity antenna switching device and method, and storage medium
US6839550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Jul 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0808
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optimum antenna is readily selected from three or more antennas, by means of an existing device which is only capable of switching between two antennas. The device of the invention comprises: a switching device for receiving signals from two antennas as a pair of antenna selected from three or more antennas, and outputting the first signal (DATADET) indicating that receiving is in progress, and the second signal (ANTSEL) indicating which antenna being used for receiving; a judgement circuit for judging which antenna is suitable for receiving and actually being used in the said pair of antenna, on the basis of the said first and the said second signal of the said switching device; a setting circuit for resetting said pair of antenna on the basis of the output of said judgement circuit; and a switching circuit for selecting two antennas which is set by the said setting circuit as a pair and supplying the output thereof to the said switching device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.