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 47):
An audio driving circuit comprising:\n a forward signal path between an input for receiving an input audio signal and an output for outputting an output signal; an error block for receiving a first signal derived from the input signal and a second signal derived from the output signal and operable to determine a first error signal indicative of a difference between the first and second signals; and a compensation module for combining the input audio signal with a compensation signal based on the first error signal; wherein the error block is configured to gain to at least one the first signal and the second signal so as to compensate for a gain applied in the forward signal path before determining the first error signal.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 93.0
- Lexical Diversity: 2.70968
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15988823', '15992847', '15466661', '14836006', '15886103']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.692034864932017
- 35 USC 102 Novelty (BERT): 0.4972680603662756
- Combined Prediction Score: 0.6725581844754429
- Mean Citation Score: 215.22213
- Max Citation Score: 278.9274
- Similarity Product: 239.7477404867292

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

Dataset: test