Patent ID: 7298905

Claim:
A communication system comprising: a transmitter to send image data; and a receiver to receive the image data sent from the transmitter; the receiver comprising: a first means for receiving the image data sent from the transmitter; means for outputting the image data received by the first receiving means; means for outputting the image data outputted from the outputting means; means for designating a time-spatial position of the received image data outputted from the outputting means; and a first means for sending designation data indicative of the time-spatial position of the image data, designated by the designating means; and the transmitter comprising: an input means to which image data are supplied continuously; a second means for receiving the designation data sent from the first sending means; means for coupling the image data corresponding to the designation data received by the second receiving means to each other to group them; means for detecting features of the image data corresponding to the designation data; and means for uncoupling the image data, coupled by the coupling means and corresponding to the designation data, according to each feature of the image data corresponding to the designation data in the same group.