PATENT CLAIM ANALYSIS

Application Number: 15897990
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["726", "030000"]

Abstract:
Systems, methods, and apparatus to provide private information retrieval are disclosed. An example apparatus includes a protected data enclave to store a first portion of data such that entities other than the first trusted hardware processing unit are unable to access the first portion of the data. The example apparatus includes a request processor to determine that a data element specified in a first request from an entity is stored in a second trusted hardware processing unit. The request processor is to send an encrypted request for the data element to the second trusted hardware processing unit, and send an encrypted dummy request to a third trusted hardware processing unit. The request processor is to determine whether an encrypted dummy response has been received from the third trusted hardware processing unit, and whether an encrypted response including the data element has been received from the second trusted hardware processing unit.

Claim (Index 1):
A first trusted hardware processing unit comprising:\n a protected data enclave to store a first portion of data such that entities other than the first trusted hardware processing unit are unable to access the first portion of the data; a request processor to:\n determine that a data element specified in a first request from an entity is stored in a second trusted hardware processing unit, the second trusted hardware processing unit to store a second portion of the data including the data element such that entities other than the second trusted hardware processing unit are unable to access the second portion of the data; \n send an encrypted request for the data element to the second trusted hardware processing unit; \n send an encrypted dummy request to a third trusted hardware processing unit; \n determine whether an encrypted dummy response has been received from the third trusted hardware processing unit in response to the encrypted dummy request, the encrypted dummy response not including the data element; \n determine whether an encrypted response including the data element has been received from the second trusted hardware processing unit in response to the encrypted request, a presence of the encrypted dummy request, the encrypted dummy response, the encrypted request and the encrypted response to prevent identification of which of the second and third trusted hardware processing units stores the data element by a third party observing network signaling; and \n send the data element to the entity.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 88.0
- Lexical Diversity: 2.65
- Patent Class: 726.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14665064', '14757659', '15298419', '15010785', '12976831']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2723937331561363
- 35 USC 102 Novelty (BERT): 0.5343222320255259
- Combined Prediction Score: 0.2985865830430753
- Mean Citation Score: 203.347784
- Max Citation Score: 373.21045
- Similarity Product: 310.3357873602718

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

Dataset: test