PATENT CLAIM ANALYSIS

Application Number: 15909613
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["711", "101000"]

Abstract:
Embodiments of the present disclosure disclose a solution for data backup and recovery in a storage system. When a source device in the storage system backs up, to a backup-end device, a data block that is written after a snapshot S n , the source device performs a logical operation such as an exclusive-NOR or exclusive-OR operation on the written data block and an original data block, which is recorded in the snapshot S n , of the written data block, and then compresses a data block obtained after the logical operation, which improves a compression ratio of a data block, thereby reducing an amount of data that is sent to the backup-end device, and saving transmission bandwidth. The solution may be further applied to a scenario of data recovery in a storage system.

Claim (Index 3):
The storage device according to  claim 1 , wherein the processor is specifically configured to determine the first data block according to a logical block address carried in a data write request recorded in a data change log after the n th  snapshot S n .

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 2.21538
- Patent Class: 711.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14062669', '14091962', '14092169', '14260044', '14772594']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5174788343569575
- 35 USC 102 Novelty (BERT): 0.4881187687555982
- Combined Prediction Score: 0.5145428277968216
- Mean Citation Score: 160.46121599999995
- Max Citation Score: 185.92665
- Similarity Product: 130.9079423119962

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