PATENT CLAIM ANALYSIS

Application Number: 15901148
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["381", "066000"]

Abstract:
Audio systems and methods are provided that receive a playback signal and produce an acoustic signal based upon the playback signal, and include microphone signal(s) for capturing and processing user voice signals. An echo reference signal is based upon the playback signal, and an echo canceler reduces echo components from the microphone signal(s). Functionality of the echo canceler is modified, such as by freezing an adaptive filter, in response to a non-linear condition in the audio playback, or a likelihood of such a non-linear condition.

Claim (Index 8):
An audio system, comprising:\n a playback section including an audio input to receive a playback signal and a transducer to produce an acoustic signal based upon the playback signal, the playback section further configured to provide an echo reference signal based upon the playback signal, the playback section further comprising a processor configured to perform non-linear processing on the playback signal, and to provide an indication of the non-linear condition; an adaptive filter configured to receive the echo reference signal and to provide an estimated echo signal, the adaptive filter configured to freeze adaptation in response to the indication of the non-linear condition in the playback section; and an acoustic pickup section configured to receive a microphone signal and to subtract the estimated echo signal from the microphone signal to provide a pickup signal.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 88.0
- Lexical Diversity: 1.8
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15668237', '15830955', '10735300', '15667988', '15657743']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7039846692708817
- 35 USC 102 Novelty (BERT): 0.488581730556833
- Combined Prediction Score: 0.6824443753994768
- Mean Citation Score: 225.453142
- Max Citation Score: 243.8
- Similarity Product: 195.5589413166046

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

Dataset: test