PATENT CLAIM ANALYSIS

Application Number: 15753139
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["381", "094100"]

Abstract:
The present invention relates in one aspect to a microphone array signal processing system comprising a digital buffer coupled to a signal input and configured to store first and second digital audio signals. A beamformer analyser is configured to, in response to a first voice trigger, determine noise statistics based on the first signal segment of the first digital audio signal and a first signal segment of the second digital audio signal. A coefficients calculator is configured to calculate a first set of fixed beamformer coefficients of a beamforming algorithm. The beamforming algorithm is configured for applying the first set of fixed beamformer coefficients to the first signal segments of the first and second digital audio signals retrieved from the digital buffer to produce a noise reduced digital audio signal.

Claim (Index 16):
A method for processing microphone array signals according to  claim 12 , further comprising:\n identifying an end location of the first signal segment of at least one of the first and second digital audio signals of the digital buffer, retrieving signal samples of a third signal segment, arranged after the end location of the first signal segment, of the first digital audio signal from the digital buffer; and retrieving signal samples of a third signal segment, arranged after the end location of the first signal segment, of the second digital audio signal from the digital buffer; applying the first set of fixed beamformer coefficients to the third signal segments of the first and second digital audio signals to produce a further noise reduced digital audio signal representative of the third signal segments.

Metadata:
- Claim Count in Document: 30.0
- Percentile: 88.0
- Lexical Diversity: 2.38596
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11568240', '13967055', '14566959', '14274544', '15355865']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6584195935998609
- 35 USC 102 Novelty (BERT): 0.4974880339930035
- Combined Prediction Score: 0.6423264376391752
- Mean Citation Score: 209.615182
- Max Citation Score: 215.50554
- Similarity Product: 151.95090101246237

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