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 2):
The sound source probing apparatus according to  claim 1 ,\n wherein the operations further include\n selecting one first element from elements of the first correlation matrix and also selecting one second element from elements of each of the second correlation matrices such that each second element is at a matrix element position corresponding to a matrix element position of the first element, and \n sequentially changing the first element and the second elements by changing the matrix element position at which the first and second elements are selected, and \n wherein the determining of the weights includes updating the weights from first values to second values that allow a linear sum of the second elements multiplied by the respective second values of the weights to be equal to the first element,\n updating the weights from the second values to third values that allow a linear sum of next-selected second elements multiplied by the respective third values of the weights to be equal to a next-selected first element, and \n further repeating the updating of the values of the weights each time the first element and the second elements are changed thereby determining the weights.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 88.0
- Lexical Diversity: 2.01266
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15430706', '12547681', '13002943', '12791423', '13996302']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7114554280507824
- 35 USC 102 Novelty (BERT): 0.4926349569395494
- Combined Prediction Score: 0.6895733809396591
- Mean Citation Score: 195.617616
- Max Citation Score: 215.02672
- Similarity Product: 152.71401690431597

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