Obtaining a patent is not easy. Patent applications are denied quite frequently and it can take years before the United States Patent and Trademark Office (USPTO) grants your patent. Recently, the USPTO granted our client, Sonic Blue, two patents, US Patent No. 8,636,241 and US Patent No. 8,674,538. We'd like to congratulate Sonic Blue for obtaining these patents. Please find below a drawing of the invention covered by US Patent No. 8,636,241.