PATENT CLAIM ANALYSIS

Application Number: 15949372
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["381", "094800"]

Abstract:
A noise suppression apparatus disclosed is capable of suppressing pulse noise in an input signal even in a situation in which the level of the input signal changes. The pulse noise mixed in the input signal is suppressed, and linear prediction coefficients for the input signal is derived by linear prediction analysis. A prediction residual signal is then calculated from the input signal using the linear prediction coefficient. A threshold value is calculated based on the signal level of the input signal and the signal level of the prediction residual signal is compared with the threshold value. A limit control is performed on the prediction residual signal depending on a result of the comparison, and an output signal is generated based on the prediction residual signal having been subjected to the limit control using the linear prediction coefficient.

Claim (Index 3):
The noise suppression apparatus according to  claim 2 , wherein\n the input signal is a time-series signal including signal data at each sample point, in the calculating the prediction residual signal, the prediction residual signal is calculated as the time-series signal including signal data at each sample point, in the comparing, in a case where the result of the comparing indicates that the signal level of the prediction residual signal at a first sample point subjected to the comparison is not larger than the threshold value, a second sample point immediately following the first sample point is employed as a next sample point to be subjected to the comparing, while in a case where the result of the comparing indicates that the signal level of the prediction residual signal at the first sample point subjected to the comparison is larger than the threshold value, a third sample point a predetermined number of samples after the first sample point is employed as a next sample point to be subjected to the comparing, and in the limit control, in a case where the result of the comparing indicates that the signal level of the prediction residual signal at the first sample point subjected to the comparison is larger than the threshold value, the suppression of the prediction residual signal is performed at least at the first sample point and at as many sample points following the first sample point as a number equal to the predetermined number minus 1.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 2.5
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['10012126', '12837658', '12197069', '13273322', '09984544']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6615244690672606
- 35 USC 102 Novelty (BERT): 0.4955180011809414
- Combined Prediction Score: 0.6449238222786287
- Mean Citation Score: 178.36879800000003
- Max Citation Score: 189.01282
- Similarity Product: 130.38193779578566

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

Dataset: test