PATENT CLAIM ANALYSIS

Application Number: 16372030
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-07
Patent Classification: ["704", "223000"]

Abstract:
An encoder for encoding an audio signal has: an analyzer configured for deriving prediction coefficients and a residual signal from an unvoiced frame of the audio signal; a gain parameter calculator configured for calculating a first gain parameter information for defining a first excitation signal related to a deterministic codebook and for calculating a second gain parameter information for defining a second excitation signal related to a noise-like signal for the unvoiced frame; and a bitstream former configured for forming an output signal based on an information related to a voiced signal frame, the first gain parameter information and the second gain parameter information.

Claim (Index 10):
The encoder according to  claim 9 , wherein the quantizer is configured for quantizing the second gain parameter to acquire a quantized second gain parameter wherein the gain parameter controller is configured to determine the second gain parameter by determining an error value based on: 1 Lsf \ue89e \uf603 \u2211 n = 0 Lsf - 1 \ue89e \ue89e k \u00b7 xw 2 \ue8a0 ( n ) - \u2211 n = 0 Lsf - 1 \ue89e \ue89e ( . cw \ue8a0 ( n ) + g n \ue89e nw \ue8a0 ( n ) ) 2 \uf604 wherein is a variable attenuation factor in a range between 0.5 and 1, Lsf corresponds to the size of a subframe of a processed audio frame, cw(n) denotes the first shaped excitation signal, xw(n) denotes a Code Excited Linear Prediction encoding signal, gn denotes the second gain parameter and   denotes a quantized first gain parameter; wherein the gain parameter controller is configured for determining the error for the current subframe and wherein the quantizer is configured for determining the quantized second gain which minimizes the error and for acquiring the quantized second gain based on: = Q \ue8a0 ( index n ) \u00b7 \u00b7 \u2211 n = 0 Lsf - 1 \ue89e \ue89e c \ue8a0 ( n ) \u00b7 c \ue8a0 ( n ) \u2211 n = 0 Lsf - 1 \ue89e \ue89e n \ue8a0 ( n ) \u00b7 n \ue8a0 ( n ) where Q (index n ) denotes a scalar value from a finite set a possible values.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 100.0
- Lexical Diversity: 2.36957
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15131773', '15131681', '12910564', '09915893', '10129945']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3505311337089817
- 35 USC 102 Novelty (BERT): 0.6426445754263067
- Combined Prediction Score: 0.3797424778807142
- Mean Citation Score: 428.12362
- Max Citation Score: 611.55725
- Similarity Product: 593.6682369474172

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