generate questions: Other lossy formats exist. Among these, mp3PRO, AAC, and MP2 are all members of the same technological family as MP3 and depend on roughly similar psychoacoustic models. The Fraunhofer Gesellschaft owns many of the basic patents underlying these formats as well, with others held by Dolby Labs, Sony, Thomson Consumer Electronics, and AT&T.
AAC, mp3PRO and MP2 are all members of the same technological family as which other lossy format? {sep_token} What model type do all of the lossy formats roughly depend on? {sep_token} Which company owns many of the patents that cover the other formats? {sep_token}