PATENT CLAIM ANALYSIS

Application Number: 16309512
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-08
Patent Classification: ["381", "056000"]

Abstract:
A signal processing device includes a prior distribution storage that stores a prior distribution group that is a set of prior distributions representing representative spectral shapes of spectral bases of an acoustic event specified as a detection target, and a basis generation unit that, using as input a spectrogram for basis generation, generates an acoustic event basis group that is a set of the spectral bases of the acoustic event specified as a detection target. The basis generation unit performs sound source separation on the spectrogram for basis generation and thereby generates an acoustic event basis group, using respective prior distributions included in a prior distribution group as a constraint for spectral bases of a corresponding acoustic event.

Claim (Index 14):
The signal processing device according to  claim 11 , wherein\n the acoustic event specified as a detection target is a generation of a sound from a specific sound source, and the prior distribution storage unit stores a prior distribution group that is a set of prior distributions representing representative spectral shapes of spectral bases of the specific sound source, the signal processing device comprising: a distribution analysis unit that generates, using as input a spectrogram of an acoustic signal including only a sound from the specific sound source, a prior distribution group; a sound source separation unit that performs, upon input of a spectrogram of an acoustic signal for sound source separation, sound source separation on the spectrogram by, using a first basis matrix representing the acoustic event basis group generated by the basis generation unit and using respective prior distributions included in a prior distribution group as a constraint for spectral bases of the corresponding specific sound source, causing the first basis matrix to be learned; and a sound source reconstruction unit that generates, based on the spectral bases of the specific sound source and activation levels of the spectral bases in the spectrogram of the acoustic signal for sound source separation, the spectral bases and the activation levels being obtained as a result of the sound source separation, a signal including only a sound from the specific sound source from the acoustic signal for sound source separation.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 98.0
- Lexical Diversity: 2.38462
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15759571', '14716289', '10799293', '14746262', '16323763']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.645710853708965
- 35 USC 102 Novelty (BERT): 0.5249772460430835
- Combined Prediction Score: 0.6336374929423768
- Mean Citation Score: 221.35049
- Max Citation Score: 320.35367
- Similarity Product: 241.4131223773414

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

Dataset: test