PATENT CLAIM ANALYSIS

Application Number: 15993990
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["381", "120000"]

Abstract:
This application relates to audio driving circuits having good audio performance. The circuit ( 301 ) has a forward signal path between an input ( 103 ) for receiving an input audio signal (S IN ) and an output ( 104 ) for outputting an output signal (S OUT ) with an amplifier module ( 102 ) in the forward signal path. An error block ( 302 ) is arranged to receive a first signal (S FF ) derived from the input signal and also a second signal (S FB ) derived from the output signal and determine a first error signal (ε 1 ) indicative of a difference between the first and second signals. A first processing module ( 204 ) is operable to generate a compensation signal (S C ) to be applied to the input signal (S IN ) upstream of the amplifier module ( 102 ) based on the first error signal. The error block ( 302 ) comprises a second processing module ( 303/303 a ) configured to apply a linear transfer function to one of the first signal or the second signals prior to determining the first error signal. In some embodiments the second processing module may apply a linear transfer function which is adaptive based on a second error signal (ε 2 ) indicative of the error between the first and second signals after the linear transfer function has been applied.

Claim (Index 32):
An audio driving circuit as claimed in  claim 28  where the first processing module is configured to control the extent to which the first error signal contributes to the compensation signal applied to the input audio signal based on an indication of the level of the input audio signal.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 93.0
- Lexical Diversity: 2.70968
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15988823', '15992847', '15466661', '14836006', '15886103']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7151548906257633
- 35 USC 102 Novelty (BERT): 0.5101452948782853
- Combined Prediction Score: 0.6946539310510156
- Mean Citation Score: 215.22213
- Max Citation Score: 278.9274
- Similarity Product: 198.8938731051921

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