FlorianMueller writes: There seems to be no end to those smartphone patent suits. This week's special: audio and video patents that its owners claim are key to formats like MP3 and MPEG 2. The targets: Apple and Android. On Monday, Alcatel-Lucent subsidiary Multimedia Patent Trust filed a patent infringement suit in Southern California against Apple, LG (over 64 different phones including some Android-based ones), Canon and TiVo over four video patents. Fortunately for Apple and LG, none of the patents asserted against those two companies are likely to be in force by the time the judge decides, so there's no risk of an injunction. They may nevertheless have to pay for past damages. The same company once obtained a record $1.5 billion jury verdict against Microsoft but saw it slashed by a judge. And on Tuesday, Hybrid Audio LLC filed a suit in Eastern Texas, asserting a patent against various Apple products and certain Android-based products from HTC and Dell.