Patent ID: 8170493
Filing Date: 2012-05-01
Classification: A61B,H04L,H04W,Y02D

Abstract:
1. A transmission device for performing communication with a reception device that performs intermittent reception, comprising: a transmitter configured to transmit various signals to the reception device; a receiver configured to receive a response signal emitted from the reception device in response to a transmission of the various signals from the transmitter to the reception device; a reception specifier configured to specify a reception timing of an intermittent reception of the reception device when a response signal from the reception device has been received; and a transmission/reception controller configured to perform control of the receiver and the transmitter, and decide a timing at which the transmission of the various signals will begin, and how long the transmission will last, on the basis of the reception timing specified by the reception specifier, wherein the transmission/reception controller has a transmission condition determiner configured to determine a transmission duration and a timing at which transmission begins for an actuation signal included in the various signals, and a transmission time memory configured to store a time at which a latest transmission was completed, and the transmission condition determiner changes the transmission duration and the timing at which the transmission of the various signals began according to a time that has elapsed since the latest transmission time was stored in the transmission time memory.