PATENT CLAIM ANALYSIS

Application Number: 16023089
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-02
Patent Classification: ["711", "125000"]

Abstract:
The present disclosure is directed to systems and methods for preventing or mitigating the effects of a cache-timing based side channel attack, such as a Meltdown type attack. In response to a speculatively executed data access by an unretired or incomplete instruction, rather than transferring data to the CPU cache, the data is instead transferred to data transfer buffer circuitry where the data is held in the form of a record until the instruction requesting the data is successfully completed or retired. Upon retirement of the instruction requesting the data access, the data included in the record may be transferred to the CPU cache. Each record held in the data transfer buffer circuitry may include: a data source identifier; a physical/virtual address of the data; a cache line that includes the data; and an instruction identifier associated with the instruction initiating the data access.

Claim (Index 21):
The system of  claim 15  wherein the means for transferring the requested data from the main memory to the data transfer buffer circuitry further comprises:\n means for transferring the requested data from the main memory to the data transfer buffer circuitry, wherein the data transfer buffer circuitry includes a plurality of data records, each of the data records including:\n a first data field to contain information indicative of an entity originating the data request; \n a second data field to contain information indicative of an address of the requested data; \n a third data field to contain the requested data; and \n a fourth data field to contain information indicative of an identifier associated with the instruction causing the data request.

Metadata:
- Claim Count in Document: 57.0
- Percentile: 94.0
- Lexical Diversity: 2.0
- Patent Class: 711.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16023717', '15640060', '09340074', '14137432', '14216493']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4431945447811785
- 35 USC 102 Novelty (BERT): 0.5450407742842446
- Combined Prediction Score: 0.4533791677314851
- Mean Citation Score: 229.206432
- Max Citation Score: 387.83182
- Similarity Product: 257.5285250637125

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

Dataset: test