Data server system where the cycle for transmitting video or audio data is adjusted according to control data transmitted to a transmitter by a receiver that monitors its buffer state

摘要

A video server system includes a transmitter for cyclically transmitting predetermined amounts of video data that have been read from a magnetic disc drive apparatus and a receiver for receiving and reproducing the video data. A control data transmitting unit of the receiver monitors a reception buffer that temporarily stores video data. On judging that an overflow or an underflow may occur in the reception buffer during the reception of video data, the control data transmitting unit generates control data indicative of the buffer state and transmits the control data to the transmitter. A transmission cycle adjusting unit of the transmitter adjusts a cycle for transmitting predetermined amounts of video data in accordance with the control data.