PATENT CLAIM ANALYSIS

Application Number: 15753070
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["381", "098000"]

Abstract:
Example embodiments disclosed herein relate to filter coefficient updating in time domain filtering. A method of processing an audio signal is disclosed. The method includes obtaining a predetermined number of target gains for a first portion of the audio signal by analyzing the first portion of the audio signal. Each of the target gains is corresponding to a linear subband of the audio signal. The method also includes determining a filter coefficients for time domain filtering the first portion of the audio signal so as to approximate a frequency response given by the target gains. The filter coefficients are determined by iteratively selecting at least one target gain from the target gains and updating the filter coefficient based on the selected at least one target gain. Corresponding system and computer program product for processing an audio signal are also disclosed.

Claim (Index 12):
A system for processing an audio signal, comprising:\n a target gain obtaining module configured to obtain a predetermined number of target gains for a first portion of the audio signal by analyzing the first portion of the audio signal, each of the target gains corresponding to a subband of the audio signal; and a coefficient determination module configured to determine filter coefficients for filtering the first portion of the audio signal so as to approximate a frequency response given by the obtained target gains, the filter coefficients determined by iteratively:\n selecting at least one target gain from the target gains, and \n updating the filter coefficients based on the filter coefficients of the previous iteration and the selected at least one target gain, and \n an audio filtering module configured to filter the first portion of the audio signal in time domain based on the updated filter coefficients.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 88.0
- Lexical Diversity: 2.19403
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15145822', '13965634', '13965644', '15031274', '15876613']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6932943568005906
- 35 USC 102 Novelty (BERT): 0.4845351663290262
- Combined Prediction Score: 0.6724184377534342
- Mean Citation Score: 206.219918
- Max Citation Score: 209.68735
- Similarity Product: 157.8462103735745

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

Dataset: test