Patent ID: 8509694
Filing Date: 2013-08-13
Classification: H04M,H04W

Abstract:
1. A method for facilitating communication between an accessory and a portable media device, the accessory supporting a plurality of control communication paths and a plurality of data communication paths to the portable media device, the method comprising, by the accessory: sending, to the portable media device via the first one of the control communication paths, a first command including a total number of control communication paths and a total number of data communication paths supported by the accessory; sending, to the portable media device via the first one of the control communication paths, one or more second commands enumerating the plurality of data communication paths; sending, to the portable media device via the first one of the control communication paths, a third command indicating an availability status of each data communication path; and receiving, from the portable media device, a fourth command indicating one or more of the data communication paths selected by the portable media device to be used for communicating data signals between the portable media device and the accessory.