Unified Patents is seeking prior art for all claims of US 8,386,581 owned and asserted in a number of district court cases by Data Scape. In particular, Unified is seeking art that discloses the methods and/or systems covered by at least claims 1-42. The '581 patent, titled "Communication system and its method and communication apparatus and its method" generally relates to a device for data communication / streaming. Submitted documents for this project MUST: (1) if a patent reference, have a priority date before 1999-09-21, or if a non-patent reference, be publicly available before 1999-09-21; (2) include a PDF attachment (with or without annotations) for any submitted non-US patent, non-US application or non-patent literature reference. (3) be for only one (1) patent or non-patent reference with the applicable attachments (if necessary).