Patent ID: 6226536
Filing Date: 2001-05-01
Classification: H02J,H04M

Abstract:
Radio equipment comprising:a portable radio apparatus;a charger for charging said radio apparatus,said charger comprisinga decision means for determining whether or not said radio apparatus is being charged by said charger;a detecting means for detecting a call incoming on said radio apparatus; andan outputting means for outputting, at the time of a call incoming, an alert tone in response to an output of said decision means and an output of said detecting means, wherein at the time of the call incoming said outputting means outputs the alert tone if said decision means determines that said radio apparatus is being charged and if said detecting means detects the call incoming,wherein said detecting means comprises vibration detecting means for detecting vibration of said radio apparatus andwherein said vibration detecting means comprisesa sensing means for outputting a voltage proportional to the vibration of said radio apparatus;a comparing means for comparing a level of the voltage with reference voltages; anda determining means for determining, if the level of the voltage lies in a preselected range, that the vibration of said radio apparatus is derived solely from the call incoming.