PATENT CLAIM ANALYSIS

Application Number: 15873083
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["381", "022000"]

Abstract:
The application relates to audio encoder and decoder systems. An embodiment of the encoder system comprises a downmix stage for generating a downmix signal and a residual signal based on a stereo signal. In addition, the encoder system comprises a parameter determining stage for determining parametric stereo parameters such as an inter-channel intensity difference and an inter-channel cross-correlation. Preferably, the parametric stereo parameters are time- and frequency-variant. Moreover, the encoder system comprises a transform stage. The transform stage generates a pseudo left/right stereo signal by performing a transform based on the downmix signal and the residual signal. The pseudo stereo signal is processed by a perceptual stereo encoder. For stereo encoding, left/right encoding or mid/side encoding is selectable. Preferably, the selection between left/right stereo encoding and mid/side stereo encoding is time- and frequency-variant.

Claim (Index 11):
The decoder system of  claim 7 , wherein\n the perceptual decoder comprises a selector selecting between L/R perceptual decoding and M/S perceptual decoding in a frequency-variant or frequency-invariant manner; the downmix signal and the residual signal is selected to be based on the sum of the first signal and of the second signal and based on the difference of the first signal and of the second signal when the selector selects L/R perceptual decoding, and the downmix signal and the residual signal is selected to be based on the first signal and based on the second signal when the selector selects M/S perceptual decoding.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 86.0
- Lexical Diversity: 2.40984
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13255143', '14734088', '13394799', '15695424', '15695668']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7919387497861612
- 35 USC 102 Novelty (BERT): 0.6304367072920639
- Combined Prediction Score: 0.7757885455367515
- Mean Citation Score: 493.076836
- Max Citation Score: 627.1298
- Similarity Product: 539.6872314742923

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