PATENT CLAIM ANALYSIS

Application Number: 16216101
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-05
Patent Classification: ["323", "234000"]

Abstract:
An AC capable power amplifier arrangement is realized that includes a buck converter with a power inductor, two buck switches, and alternately a buck-boost converter using four switches, each driving an output polarity steering set of four switches. The polarity steering switches convey the converter output current to output terminals that connect to a load with a capacitor connected in parallel. A differential receiver is connected to the output terminals to provide negative feedback. A mixer receives an input voltage signal, an output of the differential receiver, and output from a triangle wave generator. A set of two comparators for buck amplifier conversion, or four comparators for buck-boost amplifier conversion, each receives an output of the mixer. Each of the comparators produces a respective output for driving the converter switches through simple steering logic interfaces between the comparators, the converter components and a polarity steering output stage.

Claim (Index 20):
An audio power amplifier arrangement, comprised of:\n a buck regulator based system that includes:\n a connection to a DC power source; \n two FET switches arranged to operate as a buck regulator, \n in combination, with one said switch connected to the DC power source, the two switches connected together and connected to one end of a power inductor, with the other switch connected to ground;\n a power diode or FET switch configured to emulate the function of an independent power diode, with an anode connected to an other end of the power inductor; \n an output polarity steering set of electronic FET switches connected to a cathode of the power diode; \n a modulator architecture that includes:\n an input configured to receive an input signal; \n an oscillator; \n a differential receiver with its input connected to the output terminals; \n a signal mixer that mixes the input signal with an output of the differential receiver and an output of the oscillator and feeds the mix to a pair of comparators with different DC set point inputs, outputs of the comparators being received by an OR gate, an output of the OR gate being connected to two electronic switches, the two electronic switches including a first electronic switch having a first terminal connected to a power source, and a second terminal connected to the OR gate through a bootstrap level shifter, the two electronic switches including a second electronic switch having a first terminal connected to ground, and a second terminal connected to the OR gate through a logic inverter, each of the first electronic switch and the second electronic switch including a respective third terminal, the two third terminals being connected to each other.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 98.0
- Lexical Diversity: 2.20548
- Patent Class: 323.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15901666', '12580157', '12799107', '14586151', '15217102']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7141680640578628
- 35 USC 102 Novelty (BERT): 0.5886651579526431
- Combined Prediction Score: 0.7016177734473408
- Mean Citation Score: 333.38825800000006
- Max Citation Score: 495.09076
- Similarity Product: 459.7496375465727

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