Patent ID: 8331273

Claim:
A communication method employed in a bluetooth system including a first bluetooth device and a second bluetooth device, comprising: setting up a connection between the first and second bluetooth devices; after the connection is set up, checking vendor information or version information of both the first and second bluetooth devices and outputting a result; wherein the checking step comprises: determining if contents of a plurality of fields respectively corresponding to link management protocol layers of the first and second bluetooth devices are identical or not, wherein the fields are associated with the vendor information or version information; and when the contents of the fields are identical, determining that both the first and second bluetooth devices provide a symbol mapping function for converting a first modulation/demodulation to a second modulation/demodulation different from the first modulation/demodulation; determining whether to use a second modulation/demodulation based on the result; and when the result indicates using the second modulation/demodulation, using the second modulation/demodulation to replace a first modulation/demodulation so that each of the first and second bluetooth devices communicates with each other by using the second modulation/demodulation.