PATENT CLAIM ANALYSIS

Application Number: 15909030
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["375", "240030"]

Abstract:
Video coding systems or apparatus utilizing context-based adaptive binary arithmetic coding (CABAC) during encoding and/or decoding, are configured according to the invention with an enhanced binarization of non-zero Delta-QP (dQP). During binarization the value of dQP and the sign are separately encoded using unary coding and then combined into a binary string which also contains the dQP non-zero flag. This invention capitalizes on the statistical symmetry of positive and negative values of dQP and results in saving bits and thus a higher coding efficiency.

Claim (Index 7):
A decoding method comprising,\n obtaining an absolute value and an identification value of a difference quantization parameter from a bitstream; decoding the absolute value and the identification value of the difference quantization parameter,\n wherein the decoding of the identification value is subsequent to the decoding of the absolute value, \n wherein the difference quantization parameter is a difference between a quantization parameter of a current coding unit and a predicted quantization parameter of the current coding unit, \n wherein the bitstream is generated based on separation of the absolute value and the identification value, and encoding of both the separated absolute value and the separated identification value, and \n wherein the identification value indicates one of a positive value or a negative value of the difference quantization parameter; \n setting the difference quantization parameter based on the decoded absolute value and the decoded identification value; obtaining quantized data based on decoding of the bitstream; and inverse quantizing the quantized data based on the quantization parameter of the current coding unit, wherein the quantization parameter of the current coding unit is obtained based on addition of the set difference quantization parameter and the predicted quantization parameter.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 90.0
- Lexical Diversity: 1.41538
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13345320', '13870149', '14112978', '15238587', '15655500']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4934739937543691
- 35 USC 102 Novelty (BERT): 0.5295424489944116
- Combined Prediction Score: 0.4970808392783734
- Mean Citation Score: 254.766094
- Max Citation Score: 355.28217
- Similarity Product: 282.9330651273787

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

Dataset: test