PATENT CLAIM ANALYSIS

Application Number: 15985635
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["704", "500000"]

Abstract:
An encoding system ( 400 ) encodes an N-channel audio signal (X), wherein N≥3, as a single-channel downmix signal (Y) together with dry and wet upmix parameters ({tilde over (C)}, {tilde over (P)}). In a decoding system ( 200 ), a decorrelating section ( 101 ) outputs, based on the downmix signal, an (N−1)-channel decorrelated signal (Z); a dry upmix section ( 102 ) maps the downmix signal linearly in accordance with dry upmix coefficients (C) determined based on the dry upmix parameters; a wet upmix section ( 103 ) populates an intermediate matrix based on the wet upmix parameters and knowing that the intermediate matrix belongs to a predefined matrix class, obtains wet upmix coefficients (P) by multiplying the intermediate matrix by a predefined matrix, and maps the decorrelated signal linearly in accordance with the wet upmix coefficients; and a combining section ( 104 ) combines outputs from the upmix sections to obtain a reconstructed signal ({circumflex over (X)}) corresponding to the signal to be reconstructed.

Claim (Index 2):
The method of  claim 1 , wherein receiving the wet upmix parameters includes receiving N(N\u22121)/2 wet upmix parameters, wherein populating the intermediate matrix includes obtaining values for (N\u22121) 2  matrix elements based on the received N(N\u22121)/2 wet upmix parameters and knowing that the intermediate matrix belongs to the predefined matrix class, wherein the predefined matrix includes N(N\u22121) elements, and wherein the set of wet upmix coefficients includes N(N\u22121) coefficients.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 93.0
- Lexical Diversity: 2.64557
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15031130', '15521157', '15029023', '15522255', '14781232']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3242945589767774
- 35 USC 102 Novelty (BERT): 0.5637482929960209
- Combined Prediction Score: 0.3482399323787017
- Mean Citation Score: 354.370536
- Max Citation Score: 430.963
- Similarity Product: 429.7441073474288

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

Dataset: test