DATA TRANSMISSION AND RECEPTION SYSTEM

摘要

PROBLEM TO BE SOLVED: To obtain a system which is hardly affected by clock jitters by allowing a data transmitting node to generate internal data clock information, to receive data clock information from a data receiving node to select one between the internal data clock information and the data clock information and to transmit data by synchronizing it with the selected clock information. SOLUTION: A data receiving node 102 receives a data packet, and an unpacketing means 306 fetches a time stamp and audio data. A comparing means 307 and a PLL 308 reproduce an audio clock on the basis of the fetched time stamp. A selecting means 309 selects either an audio clock generated by an audio clock generating means 303 or the audio clock reproduced by the PLL 308. In this data transmission and reception system, a data receiving node 310 makes audio data synchronize with the audio clock selected by the means 309 and converts it into an analog signal.