PATENT CLAIM ANALYSIS

Application Number: 16242616
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["379", "406080"]

Abstract:
Audio systems and methods are provided to reduce echo content in an audio signal. The systems and methods receive an audio signal and sound stage rendering parameter(s), and select a set of filter coefficients to filter the audio signal to provide an estimated echo signal. The estimated echo signal is subtracted from a microphone signal to provide an output signal with reduced echo content. The set of filter coefficients are selected based upon the sound stage rendering parameter(s) from among a plurality of stored sets of filter coefficients.

Claim (Index 1):
A method of reducing echo content of an audio signal, comprising:\n receiving an audio program content signal; receiving a plurality of microphone signals; identifying an audio system configuration; selecting a set of filter coefficients from among a plurality of stored sets of filter coefficients based upon the audio system configuration, the selected set of filter coefficients representing an estimated echo response of the audio system including an array processing configuration of the plurality of microphone signals; array processing the plurality of microphone signals in accord with the array processing configuration to provide an arrayed microphone signal; filtering the audio program content signal, using the selected set of filter coefficients, to generate an estimated echo signal; and subtracting the estimated echo signal from the arrayed microphone signal to generate an output audio signal.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 99.0
- Lexical Diversity: 2.0625
- Patent Class: 379.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15667988', '15668237', '15668073', '15657743', '15925102']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5638144928555678
- 35 USC 102 Novelty (BERT): 0.5102609763310082
- Combined Prediction Score: 0.5584591412031119
- Mean Citation Score: 273.343686
- Max Citation Score: 338.36343
- Similarity Product: 297.18827492628867

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

Dataset: test