A universal coupler device includes a housing for coupling to various computer facilities, a circuit board received in the housing, two IEEE couplers and two USB couplers attached to the circuit board, one or more processor devices coupled to the IEEE couplers and the USB couplers, and a coupling box...http://www.google.es/patents/US6705878?utm_source=gb-gplus-sharePatente US6705878 - Portable universal coupler for computer facility
