PATENT CLAIM ANALYSIS

Application Number: 15952082
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["375", "240050"]

Abstract:
The invention proposes a method and a device for arithmetic encoding of a current spectral coefficient using preceding spectral coefficients. Said preceding spectral coefficients are already encoded and both, said preceding and current spectral coefficients, are comprised in one or more quantized spectra resulting from quantizing time-frequency-transform of video, audio or speech signal sample values. Said method comprises processing the preceding spectral coefficients, using the processed preceding spectral coefficients for determining a context class being one of at least two different context classes, using the determined context class and a mapping from the at least two different context classes to at least two different probability density functions for determining the probability density function, and arithmetic encoding the current spectral coefficient based on the determined probability density function wherein processing the preceding spectral coefficients comprises non-uniformly quantizing absolutes of the preceding spectral coefficients for use in determining of the context class.

Claim (Index 4):
The method of  claim 3 , wherein the step of determining the variance of the absolutes of the preceding spectral coefficients de-quantized according the first de-quantization scheme comprises determining a sum of the absolutes of the preceding spectral coefficients de-quantized according the first de-quantization scheme and comparing the determined sum with at least one threshold.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 91.0
- Lexical Diversity: 2.33824
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14924156', '13500106', '15130589', '15860311', '14922958']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5327067008951538
- 35 USC 102 Novelty (BERT): 0.6668374637642078
- Combined Prediction Score: 0.5461197771820593
- Mean Citation Score: 460.973576
- Max Citation Score: 789.05225
- Similarity Product: 601.177786621943

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