PATENT CLAIM ANALYSIS

Application Number: 15956591
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["704", "219000"]

Abstract:
The invention provides an audio encoder including a combination of a linear predictive coding filter having a plurality of linear predictive coding coefficients and a time-frequency converter, wherein the combination is configured to filter and to convert a frame of the audio signal into a frequency domain in order to output a spectrum based on the frame and on the linear predictive coding coefficients; a low frequency emphasizer configured to calculate a processed spectrum based on the spectrum, wherein spectral lines of the processed spectrum representing a lower frequency than a reference spectral line are emphasized; and a control device configured to control the calculation of the processed spectrum by the low frequency emphasizer depending on the linear predictive coding coefficients of the linear predictive coding filter.

Claim (Index 6):
Audio encoder according to  claim 4 , wherein the emphasis factor calculator comprises a first stage configured to calculate a basis emphasis factor according to a first formula \u03b3=(\u03b1\u00b7min/max) \u03b2 , wherein \u03b1 is a first preset value, with \u03b1>1, \u03b2 is a second preset value, with 0<\u03b2\u22641, min is the minimum of the of the spectral representation, max is the maximum of the spectral representation and \u03b3 is the basis emphasis factor, and wherein the emphasis factor calculator comprises a second stage configured to calculate spectral line emphasis factors according to a second formula \u03b5 i =\u03b3 i\u2032\u2212i , wherein i\u2032 is a number of the spectral lines to be emphasized, i is an index of the respective spectral line, the index increases with the frequencies of the spectral lines, with i=0 to i\u2032\u22121, \u03b3 is the basis emphasis factor and \u03b5 i  is the spectral line emphasis factor with index i.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 91.0
- Lexical Diversity: 2.27586
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14811716', '13441469', '15414289', '14811748', '15414427']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3156110323695416
- 35 USC 102 Novelty (BERT): 0.6730977028804879
- Combined Prediction Score: 0.3513596994206362
- Mean Citation Score: 363.980544
- Max Citation Score: 670.5616
- Similarity Product: 663.0872346124647

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test