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 8):
A method for decoding a surround audio signal, comprising:\n receiving, using a receiver, predominant sound parameters, ambiance parameters, channel assignment parameters, core parameters, and a rendering flag which indicates whether some data exists in a bitstream which makes decoding not practical to be implemented; decoding, using a set of core decoders, the core parameters into a set of core signals; assigning, using a predominant sound ambiance switch, the decoded core signals to predominant sound and ambiance according to the channel assignment parameters; deriving, using a matrix derivation unit, 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; deriving, using a matrix derivation unit, an ambiance rendering matrix from the ambiance parameters and the layout of the playback speakers; rendering, using a predominant sound renderer, the predominant sound to playback signals using the predominant sound rendering matrix; rendering, using an ambiance renderer, the ambiance to playback signals using the ambiance rendering matrix; and composing, using an output signal composition unit, 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): 0.7063829840557376
- 35 USC 102 Novelty (BERT): 0.6312753058167782
- Combined Prediction Score: 0.6988722162318417
- Mean Citation Score: 346.450536
- Max Citation Score: 645.1656
- Similarity Product: 534.4255830064774

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