Starhome GmbH v. AT&T Mobility, LLC, No. 12-1694 (Fed. Cir. 2014)Annotate this Case
Starhome owns the 487 patent, titled “System and Methods for Global Access to Services for Mobile Telephone Subscribers,” aimed at solving a problem that arises when mobile phone users are in a network other than their home network (roaming). For example, in a home network, a mobile phone user might dial a short code, such as “121,” to access voice mail. While roaming, a network may not recognize the code, resulting in an error message. The 487 patent demonstrates a system providing roaming services and employing an “intelligent gateway” that contains information about multiple home networks, including short-code translation tables, subscriber profile data, and roaming patterns. Starhome sued AT&T. The court construed the term “intelligent gateway” to mean “a network element that transfers information to and from a mobile network and another network external to the mobile network” and the parties stipulated to a judgment of noninfringement. The Federal Circuit affirmed.