PATENT CLAIM ANALYSIS

Application Number: 16075102
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["725", "031000"]

Abstract:
Devices, servers, systems and methods for content protection are provided. Disclosed embodiments improve temporal granularity of controlling access to the protected content and increase resilience against attacks attempting to prevent re-evaluation of conditions of access. Enforcement of re-evaluation may be based on the receipt and/or verification of tokens. In some embodiments, re-evaluation is enforced by periodically rendering content keys required for content decryption unuseable and/or clearing content keys already in use.

Claim (Index 10):
The device as claimed in  claim 1 , the processing environment being configured to:\n (a) receive the encrypted media content; (b) receive and store the encrypted content key for decrypting the encrypted media content; (c) evaluate the access condition and, if the access condition is met, decrypt the encrypted content key; (d) store the content key in a key table accessible to a descrambler (e) access the content key in the key table and load the content key to a register of the descrambler to decrypt media content associated with the content key; (f) prevent further loading of the content key from the key table to the register; (g) decrypt a portion of the encrypted media content with the content key in the register using the descrambler, wherein the interval corresponds to the time it takes to decrypt the portion; (h) in response to detecting that the portion has been decrypted, clear the content key from the register; and (i) repeat steps (c) to (h) to decrypt a next portion of the encrypted media content adjacent the portion of the encrypted media content.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 96.0
- Lexical Diversity: 1.41818
- Patent Class: 725.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11939500', '10763865', '13476190', '12635196', '14271865']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5383016822872178
- 35 USC 102 Novelty (BERT): 0.4795092247896375
- Combined Prediction Score: 0.5324224365374597
- Mean Citation Score: 213.258686
- Max Citation Score: 220.17807
- Similarity Product: 177.30397912153782

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test