PATENT CLAIM ANALYSIS

Application Number: 16127601
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["381", "092000"]

Abstract:
A device for determining a sound source direction determines a direction in which a source of a reached sound exists, based on at least one of a sound pressure difference between a first sound pressure that is a sound pressure of a first frequency component of a first part of the reached sound acquired by a first microphone and a second sound pressure that is a sound pressure of the first frequency component of a second part of the reached sound acquired by a second microphone, and a phase difference between a first phase that is a phase of a second frequency component of the first part of the reached sound and a second phase that is a phase of the second frequency component of the second part of the reached sound.

Claim (Index 8):
The device according to  claim 6 ,\n wherein a phase that is an average value of the phase differences of the target frequency band is expressed by Equation (10) below,\n a _phrase=(\u03a3 j=ss ee phase[ j ]\u00b7 C _ n [ j ])/( ee+ 1\u2212 ss )\u2003\u2003 (10) \n \n herein, phase[j]=a tan(phase_im[j]/phase_re[j]), phase_re[j]=re1[j]\u00d7re2[j]+im1[j]\u00d7im2[j], phase_im[j]=im1[j]\u00d7re2[j]\u2212re1[j]\u00d7im2[j], C_n[j]=\u03bb[j]/\u03bb_c, j is a frequency band number, re1[j] is an actual part of spectrum of the first sound pressure in a jth frequency band, re2[j] is an actual part of spectrum of the second sound pressure in the jth frequency band, im1[j] is an imaginary part of spectrum of the first sound pressure in the jth frequency band, im2[j] is an imaginary part of spectrum of the second sound pressure in the jth frequency band, \u03bb[j] is a wavelength of a sound of the jth frequency band, \u03bb_c is a wavelength of a sound at a reference frequency, ee is an upper-limit of the target frequency band, and ss is a lower-limit of the target frequency band.

Metadata:
- Claim Count in Document: 37.0
- Percentile: 97.0
- Lexical Diversity: 3.64865
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14155731', '14629784', '11766622', '15468373', '15138440']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7023497235916907
- 35 USC 102 Novelty (BERT): 0.4854386980692403
- Combined Prediction Score: 0.6806586210394456
- Mean Citation Score: 172.151408
- Max Citation Score: 174.08441000000005
- Similarity Product: 119.1122038158435

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