Patent ID: 7905419
Filing Date: 2011-03-15
Classification: H04L

Abstract:
1. A method for routing data in a chipset arranged in a portable device, the chipset comprising at least one host processor, a controller, and a Near Field Communication (NFC)-type contactless data send/receive interface, the method comprising: causing a source point located in the host processor in the portable device to send a command for opening a first data path designating a destination point located in the contactless data send/receive interface in the portable device; in response to the command for opening the first data path, defining, by the controller in the portable device, the first data path by allocating to the first data path a routing channel number and by saving in a routing table the routing channel number and routing parameters comprising at least one identifier of the source point and one identifier of the destination point; causing the source point to send to the controller data encapsulated in a frame having a header field comprising the routing channel number; and upon receiving the data encapsulated in the frame having a header field comprising the routing channel number, causing the controller to search for a destination point of the data in the routing table by using the routing channel number as an index to select the destination point to which the controller subsequently sends the data.