PATENT CLAIM ANALYSIS

Application Number: 15911169
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["381", "094300"]

Abstract:
A howling suppression device is provided, including: a plurality of filters in which a passband and a stopband are arranged alternately on a frequency axis; and a gain control unit which temporally varies an output gain of each of the plurality of filters and sums signals thus varied to output, wherein each of the plurality of filters has a passband in at least part of a stopband of another filter.

Claim (Index 1):
A howling suppression device comprising:\n a plurality of filters in which a passband and a stopband are arranged alternately on a frequency axis, including a first comb filter in which a passband and a stopband are arranged alternately on a frequency axis and a second comb filter in which a passband is arranged in a frequency band that is different from that of the passband of the first comb filter; a gain control unit which temporally varies an output gain of each of the plurality of filters and sums signals thus varied to output; and a sound detector which detects any sound signal in a detection band of a predetermined frequency band, wherein each of the plurality of filters has a passband in at least part of a stopband of another filter, the gain control unit temporally varies a first output gain of the first comb filter and a second output gain of the second comb filter, and the sound detector adjusts, based on the sound signal, attenuation amounts of the first comb filter and the second comb filter in an adjustment band paired with the detection band.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 90.0
- Lexical Diversity: 1.59574
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12866090', '13817149', '12247747', '13383871', '13819778']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6811466089504059
- 35 USC 102 Novelty (BERT): 0.4645209834133689
- Combined Prediction Score: 0.6594840463967022
- Mean Citation Score: 169.189842
- Max Citation Score: 172.85715
- Similarity Product: 138.8955928091347

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

Dataset: test