PATENT CLAIM ANALYSIS

Application Number: 15869560
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["704", "205000"]

Abstract:
A method is provided for extending the frequency band of an audio signal during a decoding or improvement process. The method includes obtaining the decoded signal in a first frequency band, referred to as a low band. Tonal components and a surround signal are extracted from the signal from the low-band signal, and the tonal components and the surround signal are combined by adaptive mixing using energy-level control factors to obtain an audio signal, referred to as a combined signal. The low-band decoded signal before the extraction step or the combined signal after the combination step are extended over at least one second frequency band which is higher than the first frequency band. Also proved are a frequency-band extension device which implements the described method and a decoder including a device of this type.

Claim (Index 9):
The method of  claim 8 , wherein the values of the high-pass filter G hp (k) are given in the table: k G hp (k) 0 0.001622428 1 0.004717458 2 0.008410494 3 0.012747280 4 0.017772424 5 0.023528982 6 0.030058032 7 0.037398264 8 0.045585564 9 0.054652620 10 0.064628539 11 0.075538482 12 0.087403328 13 0.100239356 14 0.114047967 15 0.128865425 16 0.144662643 17 0.161445005 18 0.179202219 19 0.197918220 20 0.217571104 21 0.238133114 22 0.259570657 23 0.281844373 24 0.304909235 25 0.328714699 26 0.353204886 27 0.378318805 28 0.403990611 29 0.430149896 30 0.456722014 31 0.483628433 32 0.510787115 33 0.538112915 34 0.565518011 35 0.592912340 36 0.620204057 37 0.647300005 38 0.674106188 39 0.700528260 40 0.726472003 41 0.751843820 42 0.776551214 43 0.800503267 44 0.823611104 45 0.845788355 46 0.866951597 47 0.887020781 48 0.905919644 49 0.923576092 50 0.939922577 51 0.954896429 52 0.968440179 53 0.980501849 54 0.991035206 55 1.000000000

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 1.91892
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15117100', '14896651', '14904555', '15715785', '15715733']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3627125833186731
- 35 USC 102 Novelty (BERT): 0.5511750818643538
- Combined Prediction Score: 0.3815588331732412
- Mean Citation Score: 386.806958
- Max Citation Score: 484.21936
- Similarity Product: 279.1708741265583

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