PATENT CLAIM ANALYSIS

Application Number: 16073265
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["704", "233000"]

Abstract:
Methods and systems employing an internal microphone and an external microphone of a headset to capture own voice content in the presence of noise, extract the own voice content from background noise (by performing noise reduction on the microphone outputs to generate a noise reduced signal indicative of the own voice content), and optionally also perform voice activity detection to identify segments of own voice presence or absence. In some embodiments, the external microphone is employed to capture the own voice content, the internal microphone signal is employed to infer the noise captured by the external microphone, and the inferred noise is subtracted from the external microphone signal to generate the noise reduced signal. Aspects include methods performed by any embodiment of the system, and a system or device configured (e.g., programmed) to perform any embodiment of the method.

Claim (Index 9):
The method of  claim 8 , wherein the step of performing own voice detection includes steps of:\n comparing power of the noise reduced signal or the equalized noise reduced signal, and power of the external microphone signal, on a frame by frame basis; identifying each frame, of the noise reduced signal or the equalized noise reduced signal, whose power is much smaller than the power of a corresponding frame of the external microphone signal as an own-voice absent frame corresponding to a time segment other than a time segment of own voice activity; and identifying each frame, of the noise reduced signal or the equalized noise reduced signal, whose power is not much smaller than the power of the corresponding frame of the external microphone signal as an own-voice frame corresponding to a time segment of own voice activity.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 95.0
- Lexical Diversity: 2.31818
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11502312', '15711793', '15728732', '14657604', '12170171']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3067884443803454
- 35 USC 102 Novelty (BERT): 0.4895213430878193
- Combined Prediction Score: 0.3250617342510928
- Mean Citation Score: 234.136918
- Max Citation Score: 251.17577000000003
- Similarity Product: 206.1621691998631

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