PATENT CLAIM ANALYSIS

Application Number: 15914027
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-03
Patent Classification: ["711", "162000"]

Abstract:
According to one embodiment, a memory system manages a plurality of management tables corresponding to a plurality of first blocks in a nonvolatile memory. Each management table includes a plurality of reference counts corresponding to a plurality of data in a corresponding first block. The memory system copies, based on a first management table corresponding to a copy-source block for garbage collection, only data corresponding to reference counts of non-zero from the copy-source block to a copy-destination block, and associates physical addresses respectively indicating locations in the copy-destination block, in which the data are copied, with respective intermediate addresses corresponding to the copied data.

Claim (Index 13):
A memory system comprising:\n a nonvolatile memory; a controller electrically connected to the nonvolatile memory and configured to control the nonvolatile memory, wherein the controller is further configured to: manage a plurality of management tables corresponding to a plurality of first blocks in the nonvolatile memory, each of the management tables including a plurality of reference counts corresponding to a plurality of data in a corresponding first block, and each of the reference counts indicating the number of logical addresses referring to corresponding data; when redundant data which agrees with write data received from a host does not exist in the nonvolatile memory, write the write data to the nonvolatile memory, and update an intermediate to physical address translation table managing a corresponding relationship between intermediate addresses and physical addresses of the nonvolatile memory to associate a physical address indicating a location in the nonvolatile memory, in which the write data is written, with a first intermediate address assigned to an logical address of the write data, and set a reference count corresponding to the write data to 1; when the redundant data which agrees with the write data already exists in the nonvolatile memory, associate a second intermediate address assigned to the redundant data with the logical address of the write data, and increment a reference count corresponding to the redundant data by 1; when the write data is update data of data already written in the nonvolatile memory, decrement a reference count corresponding to the data already written by 1; and when one of the plurality of first blocks is selected as a copy-source block for garbage collection, copy only data corresponding respectively to reference counts of non-zero to a copy-destination block from the copy-source block, based on a first management table in the plurality of management tables, which corresponds to the copy-source block.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 90.0
- Lexical Diversity: 2.17308
- Patent Class: 711.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15914051', '15913987', '15914009', '15059785', '15700376']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4685003605918174
- 35 USC 102 Novelty (BERT): 0.5997629334272065
- Combined Prediction Score: 0.4816266178753562
- Mean Citation Score: 282.352206
- Max Citation Score: 506.3935
- Similarity Product: 481.5872084935903

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