PATENT CLAIM ANALYSIS

Application Number: 15905319
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["381", "055000"]

Abstract:
This application relates to methods and apparatus for loudspeaker protection. A loudspeaker protection system ( 100 ) receives a digital audio signal comprising a plurality of samples at an input node (IN). A delay block ( 15 ) delays the digital audio signal and a gain block ( 14 ) applies a controlled gain to the delayed digital audio signal. An excursion predictor ( 12 ) is configured to receive a version of the audio signal from the signal path upstream of the delay block and determine a predicted excursion for a loudspeaker based on the audio signal. A gain controller ( 23 ) controls a gain setting (g) of the gain block in response to the predicted excursion and a first loudspeaker impulse response model and a predetermined excursion limit. The gain controller ( 23 ) is configured to determine at least one gain setting {g a  g i } to be applied to a set of samples {V a  . . . V i } of the audio signal delayed by the delay block where the set of samples of the audio signal corresponds to a time-span which is less than an impulse response settling time of the loudspeaker.

Claim (Index 11):
A loudspeaker protection system as claimed in  claim 1  wherein impulse response settling time of the loudspeaker is the duration of the first two lobes of impulse response.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 88.0
- Lexical Diversity: 2.47674
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15186992', '15547836', '15547850', '13360427', '13206379']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7484415043125965
- 35 USC 102 Novelty (BERT): 0.579975783162475
- Combined Prediction Score: 0.7315949321975844
- Mean Citation Score: 307.582856
- Max Citation Score: 507.70108
- Similarity Product: 388.75112629990576

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

Dataset: test