Patent ID: 6452943
Filing Date: 2002-09-17
Classification: H04N

Abstract:
A data server system comprising a data transmitting apparatus and a data receiving apparatus,the data transmitting apparatus reading at least one of video data and audio data from a storing unit and transmitting, via a network, the read data in predetermined amounts in a transmission cycle, and the data receiving apparatus receiving the data transmitted by the data transmitting apparatus and reproducing at least one of video and audio based on the data, the data receiving apparatus including: a buffer memory for temporarily storing data received by the data receiving apparatus; detecting means for detecting whether either of an underflow and an overflow appears possible in the buffer memory while the data is being received; storing means for storing a cycle for transmitting predetermined amounts of the data; updating means (1) for shortening the stored cycle when the detecting means detects that an underflow appears possible, and (2) for lengthening the stored cycle when the detecting means detects that an overflow appears possible; first generating means for generating type 1 control data that indicates the stored cycle; transmitting means for transmitting the type 1 control data, and the data transmitting apparatus including: receiving means for receiving the type 1 control data; and adjusting means for adjusting the transmission cycle in accordance with the received type 1 control data.