PATENT CLAIM ANALYSIS

Application Number: 16379091
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-09
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, the method comprising:\n decoding a current encoded compressed frame to provide a decoded frame of channels; re-distributing the 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 at least an index of active directional signals, wherein the re-distribution creates a frame of directional signals and a frame of an ambient HOA component; re-composing a current decompressed frame of the HOA representation from the frame of directional signals and from the frame of the ambient HOA component; and wherein predicted signals with respect to uniformly distributed directions are predicted from the directional signals, and the current decompressed frame is re-composed from the frame of the directional signals, the predicted signals and the frame of the ambient HOA component.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 100.0
- Lexical Diversity: 1.45714
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15876442', '14787978', '15650674', '14651313', '15435175']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7609408297204752
- 35 USC 102 Novelty (BERT): 0.5526598142037275
- Combined Prediction Score: 0.7401127281688005
- Mean Citation Score: 382.982784
- Max Citation Score: 412.44888
- Similarity Product: 398.8260731786728

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