Pulse modulation type transmitter apparatus and pulse modulation type receiver apparatus

Abstract

A pulse modulation type transmitter apparatus and a pulse modulation type receiver apparatus wherein both a fast synchronization establishment and a low power consumption of a synchronizing part can be achieved at the same time and wherein the data transmission/reception can be performed soon after a commencement of communication, and further a fast data transmission and a low power consumption can be achieved. A first template signal (), which is generated based on a separately transmitted RF frame synchronization signal (), is used to generate a frame synchronization signal (), and a second frame synchronization timing adjusting part () is used to synchronize the frame synchronization signal () with a received RF data signal (). Then, a synchronization detection is performed, whereby a prompt pulse acquisition and a prompt pulse phase acquisition can be achieved. After the establishment of frame synchronization, a template switching part () is used to switch from the first template signal () to a second template signal () that has been already synchronized with the first template signal (). Then, a synchronization detection is performed, whereby the frame synchronization can be maintained.