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 15):
A method of picking up a user's voice in an acoustic environment, the method comprising:\n receiving a playback signal; producing an acoustic signal based on the playback signal; providing an echo reference signal based on the playback signal; filtering, by an adaptive filter, the echo reference signal to provide an estimated echo signal; performing, by a playback section of an audio system, non-linear processing on the playback signal; providing, by the playback section, an indication that non-linear processing of the playback signal is enabled, resulting in a non-linear condition that may affect producing the acoustic signal; freezing an adaptation of the adaptive filter in response to the indication of the non-linear condition; receiving a microphone signal; and reducing echo content of the microphone signal based on the estimated echo 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): 0.702842564739088
- 35 USC 102 Novelty (BERT): 0.4946401083279441
- Combined Prediction Score: 0.6820223190979736
- Mean Citation Score: 225.453142
- Max Citation Score: 243.8
- Similarity Product: 180.7145069003105

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