PATENT CLAIM ANALYSIS

Application Number: 15883323
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-08
Patent Classification: ["375", "240030"]

Abstract:
Coding a transform block using level maps is disclosed. A method includes determining a lower plane of values, processing the lower plane in a backward scan order, and selecting a template for entropy-coding the values of the lower plane. The method also includes, for a current value of the lower plane, selecting, based on the template anti-diagonal lines, two or more line buffers, each of the two or more line buffers corresponding to a respective scan-order anti-diagonal line, determining a context using the two or more line buffers, and entropy encoding the current value using the context. Each value is a respective “up-to” value of a transform coefficient. The backward scan order visits the values of the lower plane along scan-order anti-diagonal lines. The template indicates scan positions of coded values of the lower plane, the scan positions are arranged, in the template, along template anti-diagonal lines.

Claim (Index 20):
The method of  claim 19 , wherein determining the context using the two or more line buffers comprises:\n calculating a respective cumulative sum for each location of the destination buffer; and determining the context using a difference between a first cumulative sum and a second cumulative sum, wherein the first cumulative sum and the second cumulative sum selected based on a position of the current value.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 2.65079
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15798495', '15835501', '13413526', '15707300', '13413472']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4647733968284802
- 35 USC 102 Novelty (BERT): 0.5270794797367492
- Combined Prediction Score: 0.471004005119307
- Mean Citation Score: 254.12368600000005
- Max Citation Score: 291.79794
- Similarity Product: 173.38639252236484

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