| 摘要 |
<p>The present invention relates to a UDP/IP network technology, a remote image transmission technology, and a network transmission protocol specialized for image transmission using H/W. According to an aspect of the present invention, provided is a method for transmitting image data with short-term reliability whereby a packet is not transmitted after a certain period of time regardless of reception of a counterpart by using an expiration timer set by an expiration timeout value included in a packet header. The method includes the steps of: starting the expiration timer if a re-transmission buffer is empty during packet transmission; clearing the expiration timer if the expiration timer is finished, vacating the retransmission buffer, recording a UPN tag of a next packet, and transmitting the UPN tag; and removing a received packet from the re-transmission buffer if an Ack or EACK packet is received and replacing an expiration timestamp value of a packet in the header of the re-transmission buffer with an expiration timer value.</p> |
