POINT-TO-MULTIPOINT CONNECTABLE SLAVE KEYBOARD COMBINED WITH WIRED USB AND WIRELESS BLUETOOTH AND AUTOMATICALLY CHARGED

摘要

Disclosed is a USB/Bluetooth slave keyboard which includes an EEPROM or flash memory, a RAM, a control unit, a Bluetooth communication unit, and a USB communication unit. The USB/Bluetooth keyboard, once the initial paring procedure with a plurality of Bluetooth master devices is performed, can switch connection to another Bluetooth master device while maintaining the connection to one Bluetooth master device by a simple operation without having to perform a complex procedure for pairing. In other words, a user is able to easily and conveniently select and connect one Bluetooth master device among a plurality of, for example, 255, Bluetooth master devices. Furthermore, it is possible to selectively connect to a USB master device connected through USB. Therefore, it is possible to use a single keyboard commonly for a computer through USB connection and for 255 different Bluetooth devices so that a user does not need to purchase multiple keyboards and can save money. [Reference numerals] (200) Control unit; (400) Bluetooth communication unit; (500) USB communication unit