Patent ID: 8121488

Claim:
An infrared communication apparatus for performing infrared communication with a receiving device for receiving data, said infrared communication apparatus comprising: a transmitter that performs transmission of a SNRM packet to inquire whether the receiving device is compatible with an IrSimple protocol for carrying out a predetermined first communication procedure, and transmission of a XID one-slot packet to inquire whether the receiving device is compatible with a one-slot compatible IrDA protocol for carrying out a predetermined second communication procedure, to the receiving device at least once, and thereafter transmitting a plurality of XID multi-slot packets to inquire whether the receiving device is compatible with a multi-slot compatible IrDA protocol for carrying out a predetermined third communication procedure, to the receiving device; a receiver that receives a response packet to indicate a protocol with which the receiving device is compatible, from the receiving device having received the SNRM packet, the XID one-slot packet, and the plurality of XID multi-slot packets from the transmitter; and a data transmitter that transmits the data to the receiving device, based on the protocol indicated by the response packet received by the receiver.