Comcast has been granted a patent for a system that manages digital rights by generating transactions with identifiers and decryption keys. These transactions, stored in a distributed ledger, enable authorized user devices to access and decrypt portions of encrypted content assets. GlobalData’s report on Comcast gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Comcast, Digital watermarking was a key innovation area identified from patents. Comcast's grant share as of July 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.

Managing digital rights for encrypted content assets

Source: United States Patent and Trademark Office (USPTO). Credit: Comcast Corp

The patent US12074984B2 outlines a method and system for managing access to encrypted content assets through a distributed ledger, such as a blockchain. The core of the invention involves generating a transaction that includes an identifier and a decryption key, which allows authorized user devices to access specific portions of the encrypted content. The transaction is stored in a distributed ledger, making it accessible based on the identifier. The method also includes provisions for controlling the timing of access to the content, which can be influenced by various factors such as fee values or time values associated with the transaction. Additionally, the system allows for the possibility of user devices accessing portions of the content before receiving the identifier.

Further enhancements to the system include the ability to track access counts of the encrypted content, which can be compared to historical data to provide proof of distribution. The architecture supports user devices accessing the content via a network and a content server, ensuring a streamlined process for content retrieval. The patent also encompasses non-transitory computer-readable media that store executable instructions for implementing the described methods. Overall, the claims emphasize a secure and efficient framework for managing encrypted content access, leveraging the benefits of distributed ledger technology.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.