PATENT CLAIM ANALYSIS

Application Number: 16427735
Application Type: Utility
Filing Date: 2019-05
Publication Date: 2019-09
Patent Classification: ["381", "022000"]

Abstract:
The invention provides methods and devices for outputting a stereo audio signal having a left channel and a right channel. The apparatus includes a demultiplexer, decoder, and upmixer. The upmixer is configured operate either in a prediction mode or a non-prediction mode based on a parameter encoded in the audio bitstream.

Claim (Index 14):
A method for outputting a stereo audio signal having a left channel and a right channel, the method comprising:\n receiving an audio bitstream and extract therefrom a prediction coefficient, wherein the audio bitstream is segmented into frames and a value of the prediction coefficient may change for each of the frames; generating in a decoder a downmix signal and a residual signal from the audio bitstream; upmixing in either a prediction mode or a non-prediction mode based on a parameter encoded in the audio bitstream; and outputting the left channel and the right channel as the stereo audio signal, wherein, when the upmixing 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 upmixing generates the left channel and the right channel from a combination of the downmix signal, the residual signal, and the prediction coefficient, and wherein, when the upmixing operates in the non-prediction mode, the residual signal represents the side signal, and the upmixing generates the left channel based on a sum of the downmix signal and the residual signal passed through from the decoder, and generates the right channel based on a difference of the downmix signal and the residual signal.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 100.0
- Lexical Diversity: 1.47368
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16222721', '15849653', '13638898', '15849645', '13638900']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8162235731204444
- 35 USC 102 Novelty (BERT): 0.6723459378834296
- Combined Prediction Score: 0.8018358095967429
- Mean Citation Score: 613.271754
- Max Citation Score: 687.7579
- Similarity Product: 646.3741579243064

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