PATENT CLAIM ANALYSIS

Application Number: 16135624
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["381", "058000"]

Abstract:
A diagnostic circuit is used for detecting the load status of an audio amplifier. The audio amplifier includes two output terminals for connection to a speaker. The diagnostic circuit may include a first circuit, which configured to generate a first signal indicating whether a signal provided via the two output terminals comprises an audio signal. A second circuit can be configured to detect a first measurement signal being indicative for the output current provided via the two output terminals, and to compare the first measurement signal with at least one threshold in order to generate a second signal indicating whether the output current has a low current amplitude profile or a high current amplitude profile. A third circuit can be configured to generate a diagnostic signal as a function of the first and the second signal.

Claim (Index 22):
An audio amplifier comprising:\n an output stage configured to be coupled to a load; and a diagnostic circuit comprising:\n a first circuit configured to generate a first signal indicative of whether a signal of an output of the output stage is an audio signal; \n a second circuit configured to detect a first measurement signal that is indicative of an output current provided via the output stage and to generate a second signal indicative of whether the output current has a low current amplitude profile or a high current amplitude profile based on the first measurement signal; and \n a third circuit configured to generate a diagnostic signal, wherein the diagnostic signal indicates:\n an open load condition when the first signal is an audio signal and the second signal indicates that the output current has a low current amplitude profile, \n a normal condition when the first signal is an audio signal and the second signal indicates that the output current has a high current amplitude profile, and \n an invalid test condition when the first signal is not an audio signal.

Metadata:
- Claim Count in Document: 28.0
- Percentile: 97.0
- Lexical Diversity: 2.26984
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15216579', '13229204', '15345885', '12751387', '12025055']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6752243127680768
- 35 USC 102 Novelty (BERT): 0.5287964424068576
- Combined Prediction Score: 0.6605815257319549
- Mean Citation Score: 208.349574
- Max Citation Score: 358.1016
- Similarity Product: 314.67184384589194

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

Dataset: test