Abstract: The present invention provides a method for transmitting multimedia wireless data to a host system, which comprises the steps of generating a key signal corresponding to a selected key; converting the key signal into a series of data symbols, each of the data symbols having a plurality of chip data, and activating one or more chip data from the plurality of chip data; and converting each data symbol having the one or more activated chip data into an infrared pulse stream and transmitting it as the multimedia wireless data. Further, as a result of activating only a portion of of the plurality of chip data, the power consumption of the system is lowered.