PATENT CLAIM ANALYSIS

Application Number: 15771084
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["704", "500000"]

Abstract:
For converting a channel-based 3D audio signal to a higher-order Ambisonics HOA audio signal, the channel-based 3D audio signal is transformed ( 21 ) from time domain to frequency domain. A primary ambient decomposition ( 22 ) is carried out for three-channel triplets of blocks of the domain channel-based 3D audio signal, wherein directional signals and ambient signals are provided ( 37 ) for each triplet. From the directional signals directional information of a total directional signal for each triple is derived ( 23 ). That total directional signal is HOA encoded ( 25 ) according to the derived directions, and ambient signals are HOA encoded ( 24 ) according to channel positions. The HOA coefficients of the HOA encoded directional signal and the HOA coefficients of the HOA encoded ambient signal are superimposed ( 27 ) in order to obtain a HOA coefficients signal for the channel-based 3D audio signal, followed by a transformation ( 26 ) into time domain.

Claim (Index 6):
The method of  claim 1 , wherein said primary ambient decomposition includes a directional and ambient power estimation, a linear spectral estimation based on minimum mean square error principle, and a post-scaling of the estimated spectra such that power maintenance is achieved.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 91.0
- Lexical Diversity: 2.42857
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15761351', '15509596', '14400039', '15927985', '14787978']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3191446139059489
- 35 USC 102 Novelty (BERT): 0.5219690308062729
- Combined Prediction Score: 0.3394270555959813
- Mean Citation Score: 282.4110740000001
- Max Citation Score: 330.25522
- Similarity Product: 228.7119940274036

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