PATENT CLAIM ANALYSIS

Application Number: 16039685
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["330", "010000"]

Abstract:
This application relates to method and apparatus for driving acoustic transducers, such as speakers or haptic transducers. A transducer driver circuit ( 200 ) has a hysteretic comparator ( 201 ) configured to compare, with hysteresis, an input signal (S IN ) received at a first comparator input to a feedback signal (S FB ) received at a second comparator input. Based on the comparison the hysteretic comparator ( 201 ) generates a pulse-width modulation (PWM) signal (S PWM ) at a comparator output ( 206 ). An inductor ( 203 ) is coupled between the comparator output and an output node ( 204 ). In use a resistive component ( 208 ), which may comprise the transducer ( 301 ) is coupled to output node ( 204 ). The inductor ( 203 ) and resistive component ( 208 ) provide filtering to the PWM signal (S PWM ). A feedback path extends between the output node ( 204 ) and the second comparator input to provide the feedback signal (S FB ).

Claim (Index 16):
A transducer driving circuit as claimed in  claim 1  wherein the hysteretic comparator is not implemented as part of an integrated circuit and the transducer driving circuit is coupled to a first output of an integrated circuit and is operable so that an analogue output signal at said first output can be supplied to the hysteretic comparator as said input signal waveform.

Metadata:
- Claim Count in Document: 40.0
- Percentile: 95.0
- Lexical Diversity: 2.48052
- Patent Class: 330.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15882347', '15991619', '15919985', '15087082', '10853733']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.780949850461227
- 35 USC 102 Novelty (BERT): 0.5166725803417708
- Combined Prediction Score: 0.7545221234492814
- Mean Citation Score: 254.20821400000003
- Max Citation Score: 268.1894
- Similarity Product: 188.79571340591903

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