PATENT CLAIM ANALYSIS

Application Number: 15889279
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["381", "092000"]

Abstract:
A sound source separation device includes a first microphone that picks up a first voice, a second microphone that picks up a second voice, a first crosstalk canceller that removes, from a voice signal of the first microphone, first crosstalk caused when the second voice is picked up by the first microphone, and a second crosstalk canceller that removes, from a voice signal of the second microphone, second crosstalk caused when the first voice is picked up by the second microphone. The first crosstalk canceller uses a voice signal in which the second crosstalk is removed from the voice signal of the second microphone to estimate and calculate a first interference signal indicative of a degree of the first crosstalk, and to remove the calculated first interference signal from the voice signal of the first microphone. The second crosstalk canceller uses a voice signal in which the first crosstalk is removed from the voice signal of the first microphone to estimate and calculate a second interference signal indicative of a degree of the second crosstalk, and to remove the calculated second interference signal from the voice signal of the second microphone.

Claim (Index 3):
The sound source separation device according to  claim 2 , wherein\n the first transfer function update circuit performs nonlinear processing using a nonlinear function on the output signal of the first subtractor, multiplies an obtained result by the output signal stored in the first storage circuit and a first step size parameter for controlling a learning speed in estimating the transfer function with respect to the first crosstalk to calculate a first update coefficient, and adds the calculated first update coefficient to the transfer function stored in the first transfer function storage circuit for updating, and the second transfer function update circuit performs nonlinear processing using a nonlinear function on the output signal of the second subtractor, multiplies an obtained result by the output signal stored in the second storage circuit and a second step size parameter for controlling a learning speed in estimating the transfer function with respect to the second crosstalk to calculate a second update coefficient, and adds the calculated second update coefficient to the transfer function stored in the second transfer function storage circuit for updating.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 88.0
- Lexical Diversity: 4.83333
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15737465', '12738457', '15447944', '11714291', '15774653']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6745967590904034
- 35 USC 102 Novelty (BERT): 0.5236520856028707
- Combined Prediction Score: 0.6595022917416501
- Mean Citation Score: 221.227288
- Max Citation Score: 321.92783
- Similarity Product: 276.17460131985064

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