PATENT CLAIM ANALYSIS

Application Number: 15989825
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["381", "307000"]

Abstract:
An apparatus for decoding a surround audio signal includes a Bitstream De-multiplexer for unpacking a bitstream into spatial parameters and core parameters, a set of core decoders for decoding the core parameters into a set of core signals, a matrix derivation unit for deriving the rendering matrix from the spatial parameters and playback speaker layout information, and a renderer for rendering of the decoded core signals to playback signals using the rendering matrix.

Claim (Index 1):
An apparatus for decoding a surround audio signal, comprising:\n a receiver that receives predominant sound parameters, ambiance parameters, channel assignment parameters, core parameters, and a rendering flag which indicates whether some data exists in a bitstream that makes decoding not practical to be implemented; a set of core decoders that decodes the core parameters into a set of core signals; a predominant sound ambiance switch that assigns the decoded core signals to predominant sound and ambiance according to the channel assignment parameters; a matrix derivation unit that derives a predominant sound rendering matrix from the predominant sound parameters and a layout of the playback speakers utilizing a computation method specified by the rendering flag; a matrix derivation unit that derives an ambiance rendering matrix from the ambiance parameters and the layout of the playback speakers; a predominant sound renderer for rendering of the predominant sound to playback signals using the predominant sound rendering matrix; an ambiance renderer that renders the ambiance to playback signals using the ambiance matrix; and an output signal composition unit that composes the playback signals using the rendered predominant sound and ambient sound.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 93.0
- Lexical Diversity: 1.97436
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15274415', '15127577', '15127545', '15127526', '15319699']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7058267185026988
- 35 USC 102 Novelty (BERT): 0.6329562280990374
- Combined Prediction Score: 0.6985396694623327
- Mean Citation Score: 346.450536
- Max Citation Score: 645.1656
- Similarity Product: 539.9173993881226

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