PATENT CLAIM ANALYSIS

Application Number: 15884945
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-08
Patent Classification: ["381", "098000"]

Abstract:
A virtual bass generating circuit used in a speaker is used to filter out a high frequency part of an audio signal to generate a low passed audio signal, generates an even and odd audio signals respectively having even and odd harmonics of the low passed audio signal according to the low passed audio signal, subtracts an amplified low passed audio signal from an addition of an amplified even audio signal and an amplified odd audio signal to generate a first calculated audio signal, filters out a low frequency part and a high frequency part of the first calculated audio signal to generate a band passed audio signal, and adds the band passed audio signal and the audio signal to generate a second calculated audio signal with enhanced even and odd harmonics of the audio signal.

Claim (Index 11):
A method for generating a virtual bass of an audio signal, comprising:\n filtering out a high frequency part of the audio signal to generate a low passed audio signal; generating an even and odd audio signals respectively having even and odd harmonics of the low passed audio signal; subtracting an amplified low passed audio signal from an addition of an amplified even audio signal and an amplified odd audio signal to generate a first calculated audio signal; filtering out a low frequency part and a high frequency part of the first calculated audio signal to generate a band passed audio signal; and adding the band passed audio signal and the audio signal to generate a second calculated audio signal with enhanced even and odd harmonics of the audio signal; wherein the even audio signal, the odd audio signal and the low passed audio signal are amplified with a first through third gains to generate the amplified even audio signal, the amplified odd audio signal and the amplified low passed audio signal; and wherein the second gain is determined according to the generation of the odd audio signal and the third gain, such that a magnitude of the amplified low passed audio signal is equal to a magnitude of a first harmonic of the amplified odd audio signal.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 86.0
- Lexical Diversity: 3.0
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13652023', '14433983', '10030521', '13720725', '14359416']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7052972489555291
- 35 USC 102 Novelty (BERT): 0.4835233257748192
- Combined Prediction Score: 0.6831198566374582
- Mean Citation Score: 224.863356
- Max Citation Score: 236.35855
- Similarity Product: 195.13214524880348

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