Patent ID: 7126935

Claim:
A data processing device that can establish and maintain a wireless communication link between itself and another nearby data processing device which shares the same communications protocol, said device comprising: a radio transceiver; memory within said device that can contain data to be transmitted; said device operating in a master mode and being switchable between linkage and data communications modes; said device, when in linkage mode, sending out inquiry signals seeking communication with another device that shares the same communications protocol but in slave mode; said device exchanging addresses with another device that shares the same communications protocol but in slave mode and that responds to one of said inquiry signals and then switches into data communications mode; said device thereafter retrieving from said memory any data that are to be transmitted, forming the data into error-correctable, addressed data packets, sending out the packets, and thereafter awaiting acknowledgment of successful receipt of such data, to transfer the data in an error free manner from it to another device that shares the same communications protocol.