PATENT CLAIM ANALYSIS

Application Number: 16369156
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["381", "022000"]

Abstract:
A stereo sound signal encoding method and system for time domain down mixing right and left channels of an input stereo sound signal into primary and secondary channels, determine normalised correlations of the left channel and right channel in relation to a monophonic signal version of the sound. A long-term correlation difference is determined on the basis of the normalised correlation of the left channel and the normalized correlation of the right channel. The long-term correlation difference is converted into a factor β, and the left and right channels are mixed to produce the primary and secondary channels using the factor β, wherein the factor β determines respective contributions of the left and right channels upon production of the primary and secondary channels.

Claim (Index 32):
A method for encoding stereo sound in response to an input stereo sound signal including left and right channels, comprising:\n determining a normalised correlation of the left channel and a normalised correlation of the right channel in relation to a monophonic signal version of the sound; determining a long-term correlation difference on the basis of the normalised correlation of the left channel and the normalised correlation of the right channel; converting the long-term correlation difference into a factor \u03b2, wherein 0\u2264\u03b2\u22641; producing primary and secondary channels from the left and right channels of the stereo sound signal; and encoding the primary channel for producing a primary channel encoded bitstream and encoding the secondary channel for producing a secondary channel encoded bitstream, wherein encoding the primary channel and encoding the secondary channel comprise distributing a bit budget between encoding of the primary channel and encoding of the secondary channel using the factor \u03b2; wherein the primary channel encoded bitstream and the secondary channel encoded bitstream form an encoded version of the stereo sound.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 99.0
- Lexical Diversity: 2.26316
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15761868', '15761895', '15761900', '15761858', '15873083']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7269208863397577
- 35 USC 102 Novelty (BERT): 0.6149242178364268
- Combined Prediction Score: 0.7157212194894246
- Mean Citation Score: 423.34870800000016
- Max Citation Score: 555.2971
- Similarity Product: 520.2867256049276

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