Patent ID: 8032116
Filing Date: 2011-10-04
Classification: H04M,H04W,Y02D

Abstract:
1. A communication method, comprising: upon conducting wireless communication a plurality of times without interruption, if it is assumed that a wireless signal sent by either one of a portable terminal being a communication destination or a communication source reaches the other, a minimum duration of identification information request receiving state is set as a first period during which operation that the one sends identification information request and the other receives it and responds to it is feasible, a minimum duration of connection request receiving state is set as a second period during which operation that the one sends connection request and the other receives it and responds to it is feasible, and a sum of the first and second periods is set as a third period, receiving periodically the identification information request from said portable terminal during a period not shorter than the first period and not longer than three-fold period of the first period, for each period not shorter than the third period and not longer than three-fold period of the third period; sending a response signal including terminal information to said portable terminal upon receiving the identification information request; accepting periodically the connection request from said portable terminal during a period not shorter than the second period and three-fold period not longer than the second period, for each period not shorter than the third period and not longer than three-fold period of the third period; establishing a wireless link with said portable terminal upon receiving the connection request; and controlling an execution apparatus for executing a predetermined operation after said link connection establishment unit has established the wireless link.