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 5):
The device as claimed in  claim 1 , wherein the processing environment is configured to re-encrypt the decrypted content key with a session key after decrypting it and to store the re-encrypted content key for access by the descrambler, wherein\n enabling the descrambler to use the content key includes decrypting the content key encrypted with the session key using the session key; and wherein preventing the descrambler from using the decrypted content key comprises changing the session key without re-encrypting the content key.

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): 0.5397634152595162
- 35 USC 102 Novelty (BERT): 0.4734252764308441
- Combined Prediction Score: 0.533129601376649
- Mean Citation Score: 213.258686
- Max Citation Score: 220.17807
- Similarity Product: 188.69286699286585

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test