PATENT CLAIM ANALYSIS

Application Number: 16211586
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["381", "107000"]

Abstract:
The invention relates to methods and apparatus for adjusting a level of an audio signal. An audio signal is divided into a plurality of frequency bands. Modification parameters are obtained for at least one of the plurality of frequency band. Gain factors are derived for at least one of the plurality of frequency bands, the gain factors determined based on the amplitude scale factors. The gain factors are smoothed. A level of noise from noise compensation factors is determined. The gain factors are applied to at least one of the frequency bands to generate gain adjusted frequency bands. The level of noise is adjusted based on the gain adjusted frequency bands. At least one of the frequency bands is filtered with a filter generated with the filter coefficients. The plurality of frequency bands is synthesized to generate an output audio signal.

Claim (Index 1):
A method for adjusting a level of an audio signal in an audio processing apparatus, the method comprising:\n dividing an audio signal into a plurality of frequency bands; obtaining modification parameters for at least one of the plurality of frequency bands, the modification parameters comprising filter coefficients and amplitude scale factors, each of the amplitude scale factors respectively operating in a frequency band of the plurality of frequency bands; deriving gain factors for at least one of the plurality of frequency bands, the gain factors determined based on the amplitude scale factors; smoothing the gain factors, wherein the smoothing of the gain factors is optional; determining a level of noise from noise compensation factors; applying the gain factors to at least one of the frequency bands to generate gain adjusted frequency bands; adjusting the level of noise based on the gain adjusted frequency bands; filtering at least one of the frequency bands with a filter generated with the filter coefficients, wherein the filter coefficients are applied to time-varying filters; and synthesizing the plurality of frequency bands to generate an output audio signal; wherein the gain factors are both time and frequency varying.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 98.0
- Lexical Diversity: 2.62069
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16211579', '16211568', '16211548', '16211593', '16211559']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7950379905467994
- 35 USC 102 Novelty (BERT): 0.6519186891824856
- Combined Prediction Score: 0.780726060410368
- Mean Citation Score: 504.553824
- Max Citation Score: 504.9869
- Similarity Product: 471.444577088076

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