Two new SEP-related patent infringement complaints were filed this week in the Central District of California by AIM IP, a non-practicing entity based in Mission Viejo, CA.  These complaints accuse Aastra USA, Inc. and AudioCodes, Inc. each of infringing claims of U.S. Patent No. 5,920,853, titled “Signal Compression Using Index Mapping Technique for the Sharing of Quantization Tables.”  AIM IP accuses various Aastra and AudioCodes Voice over Internet Protocol (VoIP) devices of infringing the patent based on the devices’ compliance with and use of the ITU G.729 audio compression standard.

[UPDATE] After this was originally posted, we discovered several additional new suits filed by AIM IP over the ‘853 patent.  These were filed against ClearOne, Digium, Media5, Obihai, and Patton Electronics, and are linked to below. [/UPDATE]Continue Reading Non-practicing entity AIM IP files new infringement suits over VoIP standard-essential patent