In a system including a host, at least one peripheral and a peripheral repeater having a transmitter/receiver for the peripheral, with the peripheral repeater receiving messages from the peripheral and retransmitting them to the host and receiving messages from the host and retransmitting the messages...http://www.google.com.tw/patents/US5230071?utm_source=gb-gplus-share專利 US5230071 - Method for controlling the variable baud rate of peripheral devices
