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 1):
An apparatus for outputting a stereo audio signal having a left channel and a right channel, the apparatus comprising:\n a demultiplexer configured to receive 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; a decoder configured to generate a downmix signal and a residual signal from the audio bitstream; and an upmixer configured to operate in either a prediction mode or a non-prediction mode based on a parameter encoded in the audio bitstream, and to output the left channel and the right channel as the stereo audio signal,\n wherein, when the upmixer 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 upmixer generates the left channel and the right channel from a combination of the downmix signal, the residual signal, and the prediction coefficient, and \n wherein, when the upmixer operates in the non-prediction mode, the residual signal represents the side signal, the upmixer generates the left channel based on a sum of the downmix signal and the residual signal, and the upmixer 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): 0.8150896079213695
- 35 USC 102 Novelty (BERT): 0.6768862614604072
- Combined Prediction Score: 0.8012692732752733
- Mean Citation Score: 613.271754
- Max Citation Score: 687.7579
- Similarity Product: 660.8676789049267

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