Patent ID: 6438143
Filing Date: 2002-08-20
Classification: H04L,H04Q

Abstract:
An image packet communications system for communicating image data information in real time between a transmitter side and a receiver side through a network, said communications system comprising a transmitter and a receiver,wherein said transmitter comprises: a transmission clock generator for generating a transmission clock signal subordinately synchronized to a given reference clock signal; a packet generator for generating image packets from input image signals based on the transmission clock signal; and a transmission standard signal generator for generating a transmission standard signal based on the transmission clock signal and for generating the image packets with image packet headers attached thereto to produce transmission packets with reference to the transmission standard signal, wherein said receiver comprises: a reception clock generator for generating a reception clock signal subordinately synchronized to the given reference clock signal, so that the reception clock is synchronized with the transmission clock signal; a buffer memory group; a packet receiver receiving the image packets with a network delay to be stored in said buffer memory group; and a buffer controller for generating a reception standard signal as a control signal for controlling writing and reading of the image packets to and from said buffer memory group, based on the reception clock signal, wherein said packet receiver is comprised of a separator means for separating the image packets and the image packet headers from each other so that said buffer controller is capable of generating an address signal based on information of the image packet headers supplied from said packet receiver.