PATENT CLAIM ANALYSIS

Application Number: 16047986
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2020-01
Patent Classification: ["381", "316000"]

Abstract:
Disclosed are systems and methods for processing an audio signal on a stereo audio device. Left and right audio signals are encoded as mid and side channel signals by taking the sum and difference of the left and right audio signals, respectively. The side channel is outputted to a first signal pathway that features a dynamic range compressor. The mid channel is outputted to a second signal pathway which is then spectrally decomposed into a plurality of sub-band signals using one or more bandpass filters. Each sub-band signal is then provided to a dynamic range compressor, compressed and outputted to a gain stage. Subsequently, each compressed sub-band signal is outputted from the gain stage and recombined. The outputs of the first and second signal pathways are then recombined and decoded in order to produce left and right audio signals. The left and right audio signals are then outputted.

Claim (Index 18):
At least one non-transitory computer readable storage medium storing instructions, which when executed by at least one processor cause the at least one processor to perform actions comprising:\n encoding a mid channel signal by calculating the sum of a left and right channel of the audio signal and encoding a side channel signal by calculating the difference of a left and right channel of the audio signal; transmitting the side channel to a first signal pathway, wherein the first signal pathway includes a first dynamic range compressor and outputs a processed side channel as a first signal pathway output; transmitting the mid channel to a second signal pathway and performing a spectral decomposition of the mid channel into a plurality of sub-band signals, the spectral decomposition using at least one bandpass filter; processing the plurality of sub-band signals by:\n providing each sub-band signal to a dynamic range compressor (DRC) and compressing the sub-band signal; \n providing each compressed sub-band signal to a gain stage to thereby form a plurality of gain-adjusted sub-band signals; \n combining the plurality of gain-adjusted sub-band signals into a processed mid channel; and \n outputting the processed mid channel as a second signal pathway output; \n recombining the first and second signal pathway outputs and decoding the recombination into a processed left audio signal and a processed right audio signal; and outputting the processed left and right audio signals.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 95.0
- Lexical Diversity: 2.20833
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16047990', '11693835', '16019230', '13332699', '11333459']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6560251939603667
- 35 USC 102 Novelty (BERT): 0.5861817477962948
- Combined Prediction Score: 0.6490408493439596
- Mean Citation Score: 284.225742
- Max Citation Score: 506.2111
- Similarity Product: 402.71720042947527

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