Until now, compression algorithms such as the Lempel-Ziv-Welch (LZW) have been implemented in software. This provided acceptable compression performance in many older systems. But with today's ...

The GIF format uses the LZW compression algorithm, which was patented by Unisys, and publishers of applications that read and write GIF87a and GIF89a images were ...

When the LZW compression patent expires next year so too will one of the Internet's longest-running love-hate relationships. The LZW algorithm -- the trick that allows Web users to view photos and ...