PATENT CLAIM ANALYSIS

Application Number: 15921184
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["365", "185030"]

Abstract:
Techniques are provided for improving the accuracy of read operations of memory cells, where the threshold voltage of a memory cell can shift depending on when the read operation occurs. A memory cell is sensed by discharging a sense node into a bit line and detecting an amount of discharge at two sense times relative to a trip voltage. A bit of data is stored in first and second latches based on the two sense times, to provide first and second pages of data. The pages are evaluated using parity check equations and one of the pages which satisfies the most equations is selected. In another option, word line voltages are grounded and then floated to prevent coupling up of the word line. A weak pulldown to ground can gradually discharge a coupled up voltage of the word lines.

Claim (Index 12):
The apparatus of  claim 1 , wherein the word line layers comprise a selected word line layer of a sensing operation and unselected word lines, further comprising:\n a first word line driver connected to the selected word line layer; a second word line driver connected to the unselected word line layers, the second word line driver configured to apply a pass voltage to the unselected word line layers while the first word line driver applies a sensing voltage to the selected word line layer; and a pulldown circuit driver configured to connect the respective pulldown circuits to the word line layers after the sensing operation, when the second word line driver ramps down a voltage of the unselected word line layers from the pass voltage to a final level and the second word line driver is disconnected from the unselected word line layers.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 90.0
- Lexical Diversity: 1.7619
- Patent Class: 365.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15921165', '15333440', '15627738', '15383852', '15182853']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8153859945753856
- 35 USC 102 Novelty (BERT): 0.5201233597508833
- Combined Prediction Score: 0.7858597310929355
- Mean Citation Score: 306.046334
- Max Citation Score: 357.77747
- Similarity Product: 287.42071235167685

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