PATENT CLAIM ANALYSIS

Application Number: 16011153
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
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):
A computer-readable storage medium that is not a transitory propagating wave or signal, comprising code instructions structures for controlling a frequency band extension device, to perform acts comprising:\n extracting tonal components and an ambience signal from a signal arising from the decoded low band signal; combining the tonal components and the ambience signal by adaptive mixing using energy level control factors to obtain an audio signal, termed a combined signal; and extending on at least one second frequency band higher than the first frequency band the low band decoded signal before the extracting or the combined signal after the combining wherein the extracting of the tonal components and of the ambience signal is performed according to the following acts:\n detecting the dominant tonal components of the decoded or decoded and extended low band signal, in the frequency domain; \n computing a residual signal by extraction of the dominant tonal components to obtain the ambience signal.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 94.0
- Lexical Diversity: 1.91892
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15117100', '15869560', '14896651', '14904555', '15715733']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.342036782981703
- 35 USC 102 Novelty (BERT): 0.599766436805785
- Combined Prediction Score: 0.3678097483641112
- Mean Citation Score: 435.863842
- Max Citation Score: 556.43036
- Similarity Product: 476.261143361776

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