The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2026
Filed:
Nov. 29, 2022
Verimatrix, Inc., San Diego, CA (US);
Verimatrix Gmbh, Ismaning, DE;
Verimatrix Uk, London, GB;
Verimatrix Oy, Helsinki, FI;
Klaus Schenk, Unterföhring, DE;
Martin Bergenwall, Helsinki, FI;
Neal Michie, London, GB;
Johan Lindquist, Merritt Island, FL (US);
Zoran Alexov, Ismaning, DE;
David Brown, San Diego, CA (US);
Verimatrix, Inc., San Diego, CA (US);
Verimatrix GmbH, Ismaning, DE;
Verimatrix UK, London, GB;
Verimatrix OY, Helsinki, FI;
Abstract
An embodiment of the invention describes a method for detecting tampering with copy restrictions on a media playback device that includes identifying locations within playback application executable files on a playback device that contain instructions for application programming interface (API) calls, modifying the API call locations to insert pieces of tamper detection code, where the pieces of tamper detection code when executed collects monitoring data about characteristics of the playback device and content being played, collecting monitoring data when API calls are performed by the API call locations, generating a confidence level of tampering from the collected monitoring data, and performing a remediation action in response to the confidence level exceeding a predetermined threshold, where the predetermined threshold is set based on types of monitoring data that was collected.