PATENT CLAIM ANALYSIS

Application Number: 16036806
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2020-01
Patent Classification: ["381", "071600"]

Abstract:
A headphone has a driver, an internal microphone, an accelerometer, and an external microphone. An audio processor analyzes signals to detect wind noise. Gain of lower frequencies is reduced relative to higher frequencies, in a first filter that is operating on an audio signal from the external microphone in a feedforward path, responsive to detecting increased wind noise. A second filter in an audio signal feedback path may be adjusted to compensate for the gain change in the first filter that may mitigate occlusion effect. Outputs of the feedforward path in the feedback path are combined to produce an audio signal for the driver. The driver produces sound in the aural canal that has transparency with reduced wind noise, relative to sound external to the headphone. Other aspects are also described and claimed.

Claim (Index 18):
A method of audio processing:\n reducing gain of lower frequencies relative to higher frequencies in a first filter that is operating upon an audio signal from an external microphone in a feedforward path, responsive to detecting increased wind noise, wherein the increased wind noise is detected by analyzing a difference in low frequency components of the signals picked up by an internal microphone and by an accelerometer; adjusting a second filter, in a feedback path, that is operating upon an audio signal from an accelerometer wherein the second filter is adjusted based on detecting the increased wind noise; and combining audio signal output of the feedforward path and audio signal output of the feedback path to produce an audio signal for input to a driver to produce sound, in an aural canal of a user of the headphone, which has transparency with reduced wind noise relative to sound external to the headphone.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 95.0
- Lexical Diversity: 2.02778
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15473926', '15473939', '13667103', '15084044', '13667111']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7143598787369962
- 35 USC 102 Novelty (BERT): 0.5167816715922725
- Combined Prediction Score: 0.6946020580225238
- Mean Citation Score: 289.2225
- Max Citation Score: 295.0482
- Similarity Product: 227.6658234972596

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