Transceiver interface reduction in an USB device

摘要

A transceiver interface (9) operating in accordance with the USB protocol includes a reduced number of pin outs by replacing the prior art logic pair of single ended outputs Vp and Vm (16,17) with a sole single ended zero output Se0 (21). The interface (9) is intended to form part of a USB device incorporated in apparatus such as a cellular radio telephone (22). <IMAGE>