PATENT CLAIM ANALYSIS

Application Number: 15935428
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["381", "058000"]

Abstract:
This application describes a noise reduction apparatus ( 800 ) for a microphone device ( 100 ) having an acoustic port ( 110 ). The apparatus has a spectrum peak detect block ( 301 ) for receiving a microphone signal (S MIC ) and determining, from the microphone signal, at least one characteristic of a resonance peak ( 202 ) associated with the acoustic port of the microphone. The at least one characteristic may comprise a resonance frequency (f H ) and/or quality factor (Q H ). A noise reduction block ( 801 ) is configured to process the microphone signal based on the resonance characteristic so as to reduce noise in the processed microphone signal due to said resonance. The noise reduction block may apply a function which is the inverse of the determined resonance characteristic.

Claim (Index 20):
A noise reduction circuit for a microphone comprising:\n a spectrum peak detect block for processing a microphone signal generated by the microphone to identify at least one characteristic of a spectral peak in the microphone signal due to a Helmholtz resonance; and a noise reduction circuit for processing the microphone signal based on said identified at least one characteristic of the spectral peak to reduce any noise due to the Helmholtz resonance in the processed microphone signal over at least a signal band of interest.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 1.98649
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15935542', '15935489', '15237522', '13414457', '15263765']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6976651090908506
- 35 USC 102 Novelty (BERT): 0.5326048826245318
- Combined Prediction Score: 0.6811590864442187
- Mean Citation Score: 253.045798
- Max Citation Score: 369.12
- Similarity Product: 304.6527690124512

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