Wireless microphone system and transmission power control method
US9516399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wireless communication apparatus and transmission power control method are disclosed, which can sustain communication with all microphone handsets while avoiding an increase in radio interference to another radio communication system as much as possible when radio communication is performed with a plurality of microphone handsets. In the wireless communication apparatus, a level measurement section measures an RSSI level of a call signal each time the base unit receives a call signal from each microphone handset; and a transmission power control section controls an amplification section so that a transmission power value is determined at a predetermined timing using a minimum value of the RSSI levels of the respective microphone handsets, and that a control signal is transmitted to the microphone handsets with the determined transmission power value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.