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 37):
An audio driving circuit as claimed in  claim 28  wherein the audio circuit is operable in an open-loop mode wherein the compensation signal has zero magnitude or is not applied to the input signal in the forward signal path.

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): 0.7138786408459387
- 35 USC 102 Novelty (BERT): 0.5184346197365112
- Combined Prediction Score: 0.6943342387349959
- Mean Citation Score: 215.22213
- Max Citation Score: 278.9274
- Similarity Product: 166.86069478400944

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