PATENT CLAIM ANALYSIS

Application Number: 16178581
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["381", "023000"]

Abstract:
The present invention relates to a method for generating a filter for an audio signal and a parameterization device for the same, and more particularly, to a method for generating a filter for an audio signal, to implement filtering of an input audio signal with a low computational complexity, and a parameterization device therefor. To this end, provided are a method for generating a filter for an audio signal, including: receiving at least one binaural room impulse response (BRIR) filter coefficients for binaural filtering of an input audio signal; converting the BRIR filter coefficients into a plurality of subband filter coefficients; obtaining average reverberation time information of a corresponding subband by using reverberation time information extracted from the subband filter coefficients; obtaining at least one coefficient for curve fitting of the obtained average reverberation time information; obtaining flag information indicating whether the length of the BRIR filter coefficients in a time domain is more than a predetermined value; obtaining filter order information for determining a truncation length of the subband filter coefficients, the filter order information being obtained by using the average reverberation time information or the at least one coefficient according to the obtained flag information and the filter order information of at least one subband being different from filter order information of another subband; and truncating the subband filter coefficient by using the obtained filter order information and a parameterization device therefor.

Claim (Index 20):
The method of  claim 11 , wherein the method further comprises:\n performing reverberation processing of each subband signal corresponding to a period subsequent to the truncated set of subband filter coefficients among the set of subband filter coefficients when the flag information indicates that the length of the BRIR filter coefficients is more than the predetermined value.

Metadata:
- Claim Count in Document: 59.0
- Percentile: 98.0
- Lexical Diversity: 2.86364
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15107462', '15789960', '15145822', '14990814', '15031274']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8191891978044789
- 35 USC 102 Novelty (BERT): 0.6241929682812315
- Combined Prediction Score: 0.7996895748521542
- Mean Citation Score: 590.697212
- Max Citation Score: 648.6893
- Similarity Product: 515.5371441538572

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