From Novelties – On the Lookout, With a Digital Security Camera – NYTimes.com:
The camera, the Digital Window D7, uses five 1.3 megapixel sensors just like the ones in camera phones, each aimed at its slice of the total view. Ingenious programs and a controller chip synchronize the five images as they are received, stitching them simultaneously into a panoramic stream that transmits at 15 frames a second.