Patent 7971879 was granted and assigned to WMS Gaming on July, 2011 by the United States Patent and Trademark Office.
A spinning reel slot machine comprises a plurality of mechanical rotatable reels and a video display. In response to a wager, the reels are rotated and stopped to randomly place symbols on the reels in visual association with a display area. The video display provides a video image superimposed upon the reels. The video image may be interactive with the reels and include such graphics as payout values, a pay table, pay lines, bonus game features, special effects, thematic scenery, and instructional information.