PATENT CLAIM ANALYSIS

Application Number: 15876442
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["381", "022000"]

Abstract:
Higher Order Ambisonics represents three-dimensional sound independent of a specific loudspeaker set-up. However, transmission of an HOA representation results in a very high bit rate. Therefore compression with a fixed number of channels is used, in which directional and ambient signal components are processed differently. The ambient HOA component is represented by a minimum number of HOA coefficient sequences. The remaining channels contain either directional signals or additional coefficient sequences of the ambient HOA component, depending on what will result in optimum perceptual quality. This processing can change on a frame-by-frame basis.

Claim (Index 1):
A method for decompressing a compressed Higher Order Ambisonics representation, said decompressing including:\n perceptually decoding a current encoded compressed frame to provide a perceptually decoded frame of channels; re-distributing said perceptually decoded frame of channels based on an assignment vector indicating at least an index of a possibly contained coefficient sequence of an ambient HOA component and a data set of indices of directional signals in order to determine a corresponding frame of the ambient HOA component; re-composing a current decompressed frame of the HOA representation from the recreated frame of directional signals and from the recreated frame of the ambient HOA component based on a data set of indices of detected directional signals and a set of dominant direction estimates, wherein directional signals with respect to uniformly distributed directions are predicted from said directional signals, and thereafter said current decompressed frame is re-composed from the recreated frame of directional signals, said predicted signals and said ambient HOA component.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 86.0
- Lexical Diversity: 1.44286
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15650674', '14787978', '14651313', '15435175', '14400039']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7788699057331775
- 35 USC 102 Novelty (BERT): 0.5632081642774619
- Combined Prediction Score: 0.757303731587606
- Mean Citation Score: 375.696338
- Max Citation Score: 429.72015
- Similarity Product: 414.6847231703997

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

Dataset: test