PATENT CLAIM ANALYSIS

Application Number: 16026116
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["330", "303000"]

Abstract:
A digital amplifier includes a digital PWM generator, a first amplifier circuit, a first low-pass filter, a second amplifier circuit, a second low-pass filter, an attenuator, an error extractor, an adder, and a voltage supply unit. The first amplifier circuit amplifies a digital PWM signal at a second voltage. The first low-pass filter extracts a low-frequency band voltage signal from the amplified digital PWM signal, and outputs the extracted voltage signal to a load. The second amplifier circuit amplifies the generated digital PWM signal at a third voltage. The error extractor extracts an error signal. The adder adds a digital error signal whose feedback gain is adjusted to a digital audio signal. The voltage supply unit generates the third voltage that has a voltage value of a predetermined ratio to a voltage value of the second voltage, and supplies the third voltage to the second amplifier circuit.

Claim (Index 6):
The digital amplifier according to  claim 5 , wherein an amplification factor of the second amplifier circuit is equal to a product of an amplification factor of the first amplifier circuit and an attenuation factor of the attenuator.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 95.0
- Lexical Diversity: 3.03704
- Patent Class: 330.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13824458', '13169558', '11115696', '13634632', '14830183']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.776755903035235
- 35 USC 102 Novelty (BERT): 0.5094682151741341
- Combined Prediction Score: 0.7500271342491249
- Mean Citation Score: 237.470108
- Max Citation Score: 251.75491
- Similarity Product: 185.0386920019484

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