PATENT CLAIM ANALYSIS

Application Number: 16431081
Application Type: Utility
Filing Date: 2019-06
Publication Date: 2019-09
Patent Classification: ["381", "022000"]

Abstract:
The invention provides methods and apparatuses for encoding a stereo audio signal having a left channel and a right channel. The apparatus includes a prediction coefficient estimator, downmixer, and multiplexer. The downmixer is configured operate either in a prediction mode or a non-prediction mode.

Claim (Index 14):
A method for encoding a stereo audio signal having a left channel and a right channel, the method comprising:\n generating a prediction coefficient for each of a plurality of frequency bands; generating, with a downmixer operable in either a prediction mode or a non-prediction mode, a mid signal and a residual signal; and generating an audio bitstream, the audio bitstream including the mid signal, the residual signal, and the prediction coefficient, wherein, when the downmixer operates in the prediction mode, the residual signal represents a difference between a side signal and a predicted version of the side signal, and the downmixer generates the predicted version of the side signal based on the mid signal and the prediction coefficient, and wherein, when the downmixer operates in the non-prediction mode, the residual signal represents the side signal, and the downmixer generates the mid signal based on a sum of the left channel and the right channel and generates the residual signal based on a difference between the left channel and the right channel.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 100.0
- Lexical Diversity: 1.48485
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16427735', '16222721', '13638898', '15849645', '15849622']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8150990331024114
- 35 USC 102 Novelty (BERT): 0.6457880062431427
- Combined Prediction Score: 0.7981679304164846
- Mean Citation Score: 589.87554
- Max Citation Score: 629.5656
- Similarity Product: 581.8074142407418

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