Patent ID: 8184662
Filing Date: 2012-05-22
Classification: H04L,H04S

Abstract:
1. A communication system including a transmitter and a receiver, the transmitter comprising: a first receiving unit constructed to receive continuous data input in a plurality of sampling periods; a sampling period identifying unit constructed to identify a sampling period of the continuous data received by the receiving unit; a generating unit constructed to generate continuous frames from the continuous data received by the receiving unit, each of the frames including a variable-length part and a fixed-length part containing data of one period or n periods or one n-th of one period of the plurality of sampling periods, where n is a positive integer, and each frame length of each of the frames is adjusted to a period equal to one period or n periods or one n-th of one period of the plurality of sampling periods by varying the length of the variable-length part in accordance with the sampling period identified by the sampling period identifying unit; and a transmitting unit constructed to transmit the continuous frames generated by the generating unit, and the receiver comprising: a second receiving unit constructed to receive the continuous frames transmitted by the transmitting unit; a detecting unit constructed to detect a period of the frames received by the second receiving unit; and a reproducing unit constructed to reproduce the data input in the plurality of sampling periods on the basis of the period of the frames detected by the detecting unit, wherein the data contained in the fixed-length part is modulated by using orthogonal frequency division multiplexing.