PATENT CLAIM ANALYSIS

Application Number: 16382719
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["704", "233000"]

Abstract:
The invention relates to a background noise estimator and a method therein, for supporting sound activity detection in an audio signal segment. The method comprises reducing a current background noise estimate when the audio signal segment is determined to comprise music and the current background noise estimate exceeds a minimum value. This is to be performed when an energy level of an audio signal segment is more than a threshold higher than a long term minimum energy level, lt_min, which is determined over a plurality of preceding audio signal segments, or, when the energy level of the audio signal segment is less than a threshold higher than lt_min, but no pause is detected in the audio signal segment.

Claim (Index 9):
The method of  claim 1 , wherein reducing the current background noise estimate responsive to a determination that an audio signal segment comprises music and to a determination that the current background noise estimate satisfies a defined rule comprises:\n determining a step size to reduce the current background noise estimate; and reducing the current background noise estimate by the step size.

Metadata:
- Claim Count in Document: 42.0
- Percentile: 100.0
- Lexical Diversity: 2.11667
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15782299', '15446634', '15102430', '15818848', '15119956']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3921041449980303
- 35 USC 102 Novelty (BERT): 0.5773803409973843
- Combined Prediction Score: 0.4106317645979657
- Mean Citation Score: 492.718974
- Max Citation Score: 543.1296
- Similarity Product: 485.6619383789063

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