PATENT CLAIM ANALYSIS

Application Number: 15898896
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["381", "092000"]

Abstract:
A sound source probing apparatus, including storage and processing circuitry, is provided that probes a direction of a sound source. The processing circuitry performs operations including determining a first correlation matrix that is a correlation matrix of acoustic signals acquired as observation signals by a microphone array including two or more microphones disposed apart from each other. The operations also include determining, by learning, weights such that a linear sum of a plurality of second correlation matrices multiplied by the respective weights is equal to the first correlation matrix where the plurality of second correlation matrices are correlation matrices, which are determined for respective directions determined based on an array arrangement of the microphone array and which are stored in advance in the storage. The operations further include determining, using the determined weights, a spatial spectrum of the observation signal indicating sound pressure intensities in the respective directions.

Claim (Index 8):
A method of probing a direction of a sound source, comprising:\n determining a first correlation matrix that is a correlation matrix of acoustic signals acquired as observation signals by a microphone array including two or more microphones disposed apart from each other; determining, by learning, weights such that a linear sum of a plurality of second correlation matrices multiplied by the respective weights is equal to the first correlation matrix where the plurality of second correlation matrices are correlation matrices, which are determined for respective directions determined based on an array arrangement of the microphone array and which are stored in advance in storage, and determining, using the determined weights, a spatial spectrum of the observation signal indicating sound pressure intensities in the respective directions.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 88.0
- Lexical Diversity: 2.01266
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15430706', '12547681', '13002943', '12791423', '13996302']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6879175689527339
- 35 USC 102 Novelty (BERT): 0.4833516741040721
- Combined Prediction Score: 0.6674609794678678
- Mean Citation Score: 195.617616
- Max Citation Score: 215.02672
- Similarity Product: 165.04751239266398

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