Patent ID: 7200361

Claim:
A wireless communication apparatus for wireless communication with wireless communication media, comprising: transmitting means for transmitting a response requesting signal to a wireless communication medium; receiving means for receiving a response transmitted from the wireless communication medium in response to the response requesting signal transmitted by the transmitting means the received response including medium type data indicating the type of wireless communication media; storage means for storing a plurality of threshold signal levels of received signals for different types of wireless communication media, the respective threshold signal levels being correlated with the medium type data indicating the type of the wireless communication media; detecting means for detecting a signal level of the received response; reading means for reading one of the plurality of threshold signal levels from the storage means that corresponds to the medium type data included in the response received by the receiving means; comparing means for comparing the received response signal level detected by the detecting means with the read threshold signal level read by the reading means; and control means for commencing the writing of specified data to the wireless communication medium, from which the response was transmitted, when the received response signal level is determined by the comparing means to be larger than or equal to the read threshold signal level.