Short Summary
Digital Global Systems petitions to invalidate DeepSig’s 10,581,469 patent covering machine‑learning‑based radio predistortion. The challenger asserts obviousness over earlier AI‑enabled predistortion disclosures (Jüschke, Holt, and Dzierwa) under 35 U.S.C. §103.
Detailed Summary
In Petition IPR2025‑00049, Digital Global Systems, Inc. seeks inter‑partes review of U.S. Patent No. 10,581,469 owned by DeepSig, Inc. The petition challenges claims 1‑8, 10, 12‑15, and 17‑24 as obvious under 35 U.S.C. §103, arguing that the combination of Jüschke’s pre‑distortion neural‑network processor (EP 2,538,553 A1) with Holt’s loss‑function training methods (U.S. Pat. 10,552,738) would have been obvious to a POSITA. For claims 2, 22, and 24, the petition adds Dzierwa’s RF‑environment optimization (U.S. Pat. 10,122,479) to the obviousness argument. No claim constructions are required. The petitioner requests the Board institute the proceeding and cancel the challenged claims.
Practitioner Note
This case demonstrates the evidentiary and procedural standards applied in patent matters before local courts. Understanding the court's reasoning in Digital Global Systems, Inc. vs DeepSig Inc. is valuable context for structuring arguments or assessing risk in similar proceedings.
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