| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a screen relay device improved in screen transmission performance.SOLUTION: A screen relay device includes: a communication unit for transmitting image information of one screen of a display unit of relay destination equipment to the relay destination equipment at the time of screen transmission start; an update region storage unit for storing an updated region in which image update occurs in the display unit of the relay destination equipment according to operation information; a drawing unit for drawing an image in which the operation information is reflected for the updated region; a first memory unit for storing the image drawn by the drawing unit; a second memory unit for storing the image information displayed in the relay destination equipment; and an image transmission unit for reading out and comparing the image information corresponding to the updated region from the first memory section and the second memory section, updates the image information stored in the second memory unit for a difference region in which the image information is different, and outputs the image information corresponding to the updated difference region, as second image information, to the communication unit.</p> |
