PATENT CLAIM ANALYSIS

Application Number: 15891606
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["381", "022000"]

Abstract:
A method for compressing a HOA signal being an input HOA representation with input time frames (C(k)) of HOA coefficient sequences comprises spatial HOA encoding of the input time frames and subsequent perceptual encoding and source encoding. Each input time frame is decomposed ( 802 ) into a frame of predominant sound signals (X PS (k−1)) and a frame of an ambient HOA component ({tilde over (C)} AMB (k−1)). The ambient HOA component ({tilde over (C)} AMB (k−1)) comprises, in a layered mode, first HOA coefficient sequences of the input HOA representation (c AMB,n (k−1)) in lower positions and second HOA coefficient sequences (c AMB,n (k−1)) in remaining higher positions. The second HOA coefficient sequences are part of an HOA representation of a residual between the input HOA representation and the HOA representation of the predominant sound signals.

Claim (Index 2):
An apparatus for decoding a compressed Higher Order Ambisonics (HOA) representation of a sound or a soundfield, the apparatus comprising:\n a receiver for receiving a bit stream containing the compressed HOA representation; an audio decoder for decoding, based on a determination that there are multiple layers, the compressed HOA representation from the bitstream to obtain a sequence of decoded HOA representations, wherein a first subset of the sequence of decoded HOA representations corresponds to a first set of indices and a second subset of the sequence of decoded HOA representations corresponds to a second set of indices, wherein the first set of indices is based on O MIN  channels, wherein, for each index in the first set of indices, a corresponding decoded HOA representation in the first subset is determined based on only a corresponding ambient HOA component, and wherein the second set of indices is determined based on at least one of the multiple layers.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 88.0
- Lexical Diversity: 2.74242
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15713174', '15127577', '15127526', '15127545', '15319699']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7477544153073418
- 35 USC 102 Novelty (BERT): 0.6183241806360192
- Combined Prediction Score: 0.7348113918402096
- Mean Citation Score: 489.831484
- Max Citation Score: 540.1248
- Similarity Product: 535.5683585100174

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