Invention Grant
- Patent Title: Systems and methods for preserving privacy in distribution of digital content using private tokens
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Application No.: US16067573Application Date: 2016-12-30
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Publication No.: US10691830B2Publication Date: 2020-06-23
- Inventor: Thomas A. Munro , Niels J. Thorwirth
- Applicant: Verimatrix, Inc.
- Applicant Address: US CA San Diego
- Assignee: Verimatrix, Inc.
- Current Assignee: Verimatrix, Inc.
- Current Assignee Address: US CA San Diego
- Agency: KPPB LLP
- International Application: PCT/US2016/069592 WO 20161230
- International Announcement: WO2017/117574 WO 20170706
- Main IPC: G06F21/62
- IPC: G06F21/62 ; H04L29/06 ; G06Q30/02 ; G06Q50/00 ; G06Q30/06 ; G06Q20/06 ; G06F16/951 ; G06F21/16 ; H04L9/08 ; H04L9/30 ; H04L9/32

Abstract:
Systems and methods for preserving privacy in distribution of content using private tokens in accordance with embodiments of the invention are disclosed. In one embodiment, a method of anonymously tracking a digital content and remediating unauthorized distribution includes generating a private token including an identifier distinguishable from tokens generated by other playback devices and the association with the playback device is not shared, receiving a portion of content, embedding a digital watermark in the content, where the digital watermark includes the private token, detecting an unauthorized copy of the content, extracting the digital watermark from the unauthorized copy of the content, broadcasting an enforcement message containing the private token to the playback devices, receiving the enforcement message, and performing an enforcement action on the playback device in response, where only a playback device that generated the private token responds.
Public/Granted literature
- US20190012439A1 Systems and Methods for Preserving Privacy in Distribution of Digital Content Using Private Tokens Public/Granted day:2019-01-10
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