Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hidetada Nago0
Date of Patent
June 30, 2009
0Patent Application Number
112598110
Date Filed
October 26, 2005
0Patent Primary Examiner
Patent abstract
After a first wireless terminal device transitions to a Direct Link Protocol mode, the terminal device transmits an ICMP_echo_request signal directly to a second wireless terminal device and, upon receiving an ICMP_echo_reply signal from the second wireless terminal device within a fixed period of time, counts up the number of times there is a reply. If the ICMP_echo_reply signal is not received within a fixed period of time, then the first wireless terminal device counts up the number of non-replies. As a result, the first wireless terminal device can readily judge whether it is capable of communicating directly with the second wireless terminal device in the Direct Link Protocol mode.
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