On Friday, April 14, 2017, Digital Stream IP, LLC filed two separate complaints in federal court in the Eastern District of Texas against CBS Radio Inc. and iHeartMedia, Inc., alleging infringement of U.S. Patent No. 6,757,913 (“the ‘913 patent”).The ‘913 patent is directed to sending digital audio signals from a transmitter to a receiver or tuner, which can display, for example, song titles and artists along with playing the corresponding audio. This, of course, sounds routine in this age of ubiquitous digital radio, but the asserted patent claims a history going back to an original patent application filed July 15, 1996. Due to patent term extensions granted due to delays in patent office processing, the ‘913 patent is set to expire on July 5, 2018.In the complaints, Digital Stream alleges that the ‘913 patent reflects an “improvement in digital audio” devices and systems and “solve[s] the problems of limited range, signal strength, variety of channels, program information available and overall accessibility and ease of use.”The ‘913 patent has considerable and ongoing litigation history. In 2016, Digital Stream first targeted the automotive industry in suits against General Motors, Honda, Nissan, BMW, and Mercedes-Benz. Digital Stream also asserted the ‘913 patent in… Read full this story
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