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 1):
A sound source separation device comprising:\n 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; 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; a first loud speaker that outputs the first voice; and a second loud speaker that outputs the second voice, wherein 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, for the second voice uttered at a certain time, a time when the voice signal of the second microphone is input into the first crosstalk canceller is identical to or earlier than a time when the second voice is picked up by the first microphone, for the first voice uttered at a certain time, a time when the voice signal of the first microphone is input into the second crosstalk canceller is identical to or earlier than a time when the first voice is picked up by the second microphone, the first crosstalk canceller further removes indirect first crosstalk caused when the second voice output from the second loud speaker is picked up by the first microphone, the first interference signal is indicative of degrees of the first crosstalk and the indirect first crosstalk, the second crosstalk canceller further removes indirect second crosstalk caused when the first voice output from the first loud speaker is picked up by the second microphone, and the second interference signal is indicative of degrees of the second crosstalk and the indirect second crosstalk.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 88.0
- Lexical Diversity: 4.83333
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15737465', '12738457', '15447944', '11714291', '15774653']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6479125931663007
- 35 USC 102 Novelty (BERT): 0.5223722706891523
- Combined Prediction Score: 0.6353585609185858
- Mean Citation Score: 221.227288
- Max Citation Score: 321.92783
- Similarity Product: 267.75734367596505

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test