PATENT CLAIM ANALYSIS

Application Number: 16223112
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["704", "500000"]

Abstract:
The present invention relates to coding of audio signals, and in particular to high frequency reconstruction methods including a frequency domain harmonic transposer. A system and method for generating a high frequency component of a signal from a low frequency component of the signal is described. The system comprises an analysis filter bank ( 501 ) comprising an analysis transformation unit ( 601 ) having a frequency resolution of Δf; and an analysis window ( 611 ) having a duration of D A ; the analysis filter bank ( 501 ) being configured to provide a set of analysis subband signals from the low frequency component of the signal; a nonlinear processing unit ( 502, 650 ) configured to determine a set of synthesis subband signals based on a portion of the set of analysis subband signals, wherein the portion of the set of analysis subband signals is phase shifted by a transposition order T; and a synthesis filter bank ( 504 ) comprising a synthesis transformation unit ( 602 ) having a frequency resolution of QΔf; and a synthesis window ( 612 ) having a duration of D S ; the synthesis filter bank ( 504 ) being configured to generate the high frequency component of the signal from the set of synthesis subband signals; wherein Q is a frequency resolution factor with Q1 and smaller than the transposition order T; and wherein the value of the product of the frequency resolution Δf and the duration D A  of the analysis filter bank is selected based on the frequency resolution factor Q.

Claim (Index 4):
The system of  claim 1 , wherein M is smaller than (TL A +L A )/2

Metadata:
- Claim Count in Document: 5.0
- Percentile: 98.0
- Lexical Diversity: 3.02198
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15165735', '13499893', '14505739', '15792956', '13321910']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4772979700903184
- 35 USC 102 Novelty (BERT): 0.6113968365217837
- Combined Prediction Score: 0.4907078567334649
- Mean Citation Score: 621.67656
- Max Citation Score: 677.7976
- Similarity Product: 481.7010417351248

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