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  • Bijective BWT (7 Comments)

    David Scott has written a bijective BWT transform, which brings all the advantages of bijectiveness to BWT based compressors. Among other things, making BWT more suitable for compression-before-encryption and also give (slightly) better compression.

  • Asymmetric Binary System (113 Comments)

    Jarek Duda’s “Asymmetric Binary System” promises to be an alternate to arithmetic coding, having all the advantages, but being much simpler. Matt has coded a PAQ based compressor using ABS for back-end encoding. Update: Andrew Polar has written an alternate implementation of ABS.

  • Precomp: More Compression for your Compressed Files (3 Comments)

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them. Christian Schneider’s Precomp comes to rescue by undoing the harm.

  • On2 Technologies is Hiring

    There aren’t too many companies working on cutting edge codecs, and of those few this one is hiring. Best of luck.

  • China’s AVS Specifications Available (2 Comments)

    Its old news that China has developed their own Advanced Video Standard to avoid high licensing fees. English translation of the standard is now available, along with the IPR policy. Finally something technical that you can get your hands on to feed your appetite.

Qualcomm files second suit against Broadcom

Posted by Sachin Garg on 23rd October 2005 | Permanent Link

Qualcomm’s most recent suit, submitted last week in U.S. District Court, Southern District of California, charges Broadcom with infringing two of Qualcomm’s patents. One of the patents describes an image-compression technology and the other video encoding and decoding.

The battle between the chipmakers began in May, when Broadcom filed a suit charging Qualcomm with infringing 10 of Broadcom’s patents related to wired and wireless communications and multimedia processing technologies. At the same time, Broadcom also filed a complaint with the U.S. International Trade Commission (ITC) suggesting that Qualcomm unfairly imports products that infringe Broadcom patents and requesting that the ITC investigate Qualcomm imports. Then in July, Broadcom filed a separate antitrust suit against Qualcomm. Shortly after, Qualcomm responded with its own suit against Broadcom charging infringement of seven Qualcomm patents.

Both companies make chips that power mobile devices. Qualcomm is best known for its mobile-phone technology and chips while Broadcom supplies chips for a wide variety of consumer electronics including networking equipment and digital entertainment devices as well as cell phones.

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