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 17):
The apparatus of  claim 10  wherein in 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, the at least one processor performs operations comprising:\n responsive to a current energy level of the audio signal segment being higher than the current background noise estimate and no pause is detected in the audio signal segment, reducing the current background noise estimate by a predetermined amount for each frame of the audio signal segment until the current background noise estimate reaches a minimum level.

Metadata:
- Claim Count in Document: 42.0
- Percentile: 100.0
- Lexical Diversity: 2.11667
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15782299', '15446634', '15102430', '15818848', '15119956']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3646085229796342
- 35 USC 102 Novelty (BERT): 0.5739444694271348
- Combined Prediction Score: 0.3855421176243843
- Mean Citation Score: 492.718974
- Max Citation Score: 543.1296
- Similarity Product: 480.6867190429687

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test