Bluetooth adaptor case, has Bluetooth module emitting/receiving radio communication according to Bluetooth protocol with Bluetooth protocol software stack, and USB controller that is connected to USB connector

摘要

The case has a Bluetooth module (2) emitting/receiving radio communication according to a Bluetooth protocol with a Bluetooth protocol software stack. A USB controller (3) is connected to a USB connector (4) connected to a computer peripheral through a cable. A lithium-ion battery (5) supplying voltage to the peripheral is recharged by a battery charging circuit (7). An independent claim is also included for a radio-communication system.