As reported on www.softwaretop100.org, HTC, the Taiwan based smartphone manufacturer, has bought a portfolio of 82 patents and 14 pending applications related to mobile technology from US based ADC Telecommunications. HTC is no doubt trying to improve its patent position in wireless technologies, and 4G technology in particular. HTC makes both Windows Phone 7 and Android based smart phones.
It is believed these patents relate to use of orthogonal frequency division multiplexing for telecommunications, and have priority dates going back to 1994. Here is one of the latest patents to issue from the family: 7912138