Method for reducing video image latency

摘要

Image latency is reduced in a video display system where an image is displayed for a stroke video frame period. The system has a display device and a plurality of memory buffers, each of which is adapted to receive image data (in a receiving condition) or to display data to the display device (in a display condition). The stroke video frame period is divided into at least two time periods and the number of memory buffers provided is at least the number of time periods per stroke video frame period. One of the memory buffers is in the display condition for a first time period, with the remaining memory buffers in the receiving condition. At the end of the time period, the memory buffers are rotated so that the displayed memory buffer moves to the receiving condition and one of the receiving buffers moves into the display condition.

主权项

1. A method for reducing image latency in a video display system using a stroke video frame technique in which a video image is displayed for a stroke video frame period, the system comprising a display device and a plurality of raster memory buffers, each of which is adapted to be either in communication with a source for receiving image data when in a receiving condition or in communication with the display device when in a display condition, the method comprising the steps of:
dividing the stroke video frame period into at least two raster memory time periods; providing the video display system, such that the number of raster memory buffers equals or exceeds the number of raster memory time periods per stroke video frame period; arranging the video display system such that only one of the raster memory buffers is in the display condition for a first raster memory time period and the remainder of the raster memory buffers are in the receiving condition; displaying on the display device the image data from the raster memory buffer in the display condition for a raster memory time period where the raster memory buffer in the display condition contains information for two separate video frames; and rotating the arrangement of the raster memory buffers at the end of the raster memory time period, so that the raster memory buffer in the display condition rotates into a receiving condition and one of the raster memory buffers in the receiving condition rotates into the display condition.