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 4):
A microphone array signal processing system according to  claim 1 , wherein the beamformer analyser is further configured to:\n retrieve signal samples of a second signal segment of the first digital audio signal, or a second signal segment of the second digital audio signal, from the digital buffer; said second signal segments preceding the first signal segment of the first digital audio signal in time; and determine the noise statistics based on the first signal segment of the first digital audio signal and the second signal segment of the first or second digital audio signal.

Metadata:
- Claim Count in Document: 30.0
- Percentile: 88.0
- Lexical Diversity: 2.38596
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11568240', '13967055', '14566959', '14274544', '15355865']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6895434759428306
- 35 USC 102 Novelty (BERT): 0.476368389290452
- Combined Prediction Score: 0.6682259672775928
- Mean Citation Score: 209.615182
- Max Citation Score: 215.50554
- Similarity Product: 193.5138405225599

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