PATENT CLAIM ANALYSIS

Application Number: 15864574
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["704", "500000"]

Abstract:
An audio encoder comprises a multi-channel receiver which receives an M-channel audio signal where M>2. A down-mix processor down-mixes the M-channel audio signal to a first stereo signal and associated parametric data and a spatial processor modifies the first stereo signal to generate a second stereo signal in response to the associated parametric data and spatial parameter data for a binaural perceptual transfer function, such as a Head Related Transfer Function (HRTF). The second stereo signal is a binaural signal and may specifically be a (3D) virtual spatial signal. An output data stream comprising the encoded data and the associated parametric data is generated by an encode processor and an output processor. The HRTF processing may allow the generation of a (3D) virtual spatial signal by conventional stereo decoders. A multi-channel decoder may reverse the process of the spatial processor to generate an improved quality multi-channel signal.

Claim (Index 1):
An audio encoder comprising:\n a receiver configured to:\n receive a plurality of audio signals over a corresponding number of audio channels, wherein the audio channels are spatially diverse; \n a downmixer configured to:\n down-mix the plurality of audio signals to a stereo signal and associated parametric data containing cues and information relating the sterol signal to the original audio channels, \n a signal generator configured to:\n generate a binaural signal based on associated parametric data and a binaural perceptual transfer function, wherein the binaural perceptual transfer function comprises spatial parametric data; \n an encoder configured to:\n encode the binaural signal to generate encoded data; and \n a stream generator configured to:\n output a data stream comprising the encoded data and the associated parametric data.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 86.0
- Lexical Diversity: 2.13158
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12279856', '14679283', '12681124', '12066509', '11469799']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3479813180499681
- 35 USC 102 Novelty (BERT): 0.5803289809902614
- Combined Prediction Score: 0.3712160843439974
- Mean Citation Score: 401.842452
- Max Citation Score: 497.6578
- Similarity Product: 441.0309625087738

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

Dataset: test