PATENT CLAIM ANALYSIS

Application Number: 16222721
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
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 for each of a plurality of frequency bands; generating in a decoder a downmix signal and a residual signal from the encoded 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 upmixing generates the left channel and the right channel from a combination of the downmix signal, the residual signal, and the prediction coefficients for each of the plurality of frequency bands, and wherein, when the upmixing operates in the non-prediction mode, 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 passed through from the decoder.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 98.0
- Lexical Diversity: 1.47368
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15849653', '13638898', '15849645', '13638900', '15849622']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8320486469416443
- 35 USC 102 Novelty (BERT): 0.6208099841848926
- Combined Prediction Score: 0.8109247806659691
- Mean Citation Score: 599.490758
- Max Citation Score: 602.64996
- Similarity Product: 512.4510861220049

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test