PATENT CLAIM ANALYSIS

Application Number: 15747022
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["704", "500000"]

Abstract:
From an HOA signal representation (c(t)) of a sound field having an order of N and a number 0=(N+1) 2  of coefficient sequences a mezzanine HOA signal representation (w MEZZ (t)) is generated that consists of an arbitrary number I<0 of virtual loudspeaker signals W MEZZ1 (t), W MEZZ,2 (t), . . . , W MEZZ,I (t). 0 directions are computed which are nearly uniformly distributed on the unit sphere. The mode vectors with respect to these directions are linearly weighted for constructing a matrix, of which the pseudo-inverse is used for multiplying the HOA signal representation (c(t)) in order to form (11) the mezzanine HOA signal representation (W MEZZ (t)).

Claim (Index 16):
A method for generating, from an HOA signal representation c(t) of a sound field having an order of N and a number 0=(N+1) 2  of coefficient sequences, a mezzanine HOA signal representation w MEZZ (t) consisting of a number I of virtual loudspeaker signals w MEZZ,1 (t), w MEZZ,2 (t) . . . , w MEZZ,I (t), the method comprising:\n determining directions \u03a9 i (N) =i=1, . . . , 0, of the virtual loudspeaker signals, wherein the directions \u03a9 i (N)  are targeted to be uniformly distributed on an unit sphere; sub-dividing the directions \u03a9 i (N)  into groups g i , i=1, . . . , I of neighboring directions; linearly combining mode vectors S n :=[S 0 0 (\u03a9 n (N) ) S 1 \u22121 (\u03a9 n (N) ) S 1 0 (\u03a9 n (N) ) S 1 1 (\u03a9 n (N) ) . . . S N N\u22121 (\u03a9 n (N) ) S N N (\u03a9 n (N) )] T  \u2208 0  for said directions \u03a9 i (N) within each group g i , resulting in vectors V i =\u03a3 n\u2208g i  \u03b1 n S n  \u2208 0 , where \u03b1 n \u22650 denotes a weight of S n  for said combining; determining from the vectors V i  a matrix V:=K\u00b7[V 1 V 2 . . . V 1 ] \u2208 0\u00d71  with an arbitrary positive real-valued scaling factor K>0; and determining for a current section of c(t) the mezzanine HOA representation w MEZZ (t) based on the matrix V.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 86.0
- Lexical Diversity: 2.11268
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15319707', '15319699', '15702418', '15319353', '15320461']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3045272316022257
- 35 USC 102 Novelty (BERT): 0.5157147563214988
- Combined Prediction Score: 0.325645984074153
- Mean Citation Score: 298.875148
- Max Citation Score: 319.6929
- Similarity Product: 227.7518195928633

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