PATENT CLAIM ANALYSIS

Application Number: 16001638
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["381", "303000"]

Abstract:
The disclosure relates to an apparatus for generating a sound field on the basis of an input audio signal. The apparatus comprises a plurality of transducers, wherein each transducer is configured to be driven by a transducer driving signal q l  of the respective transducer; a plurality of filters configured to generate for each transducer the transducer driving signal q l  of the respective transducer; and a control unit configured to provide or receive a first transducer driving signal vector q 0  of dimension L such that the gradient of J(q;Ψ) with respect to q is zero in (q 0 ;Ψ 0 ), the control unit is further configured to provide a second transducer driving signal vector {tilde over (q)} of dimension L such that the gradient of the cost function J(q;Ψ) with respect to q is [approximately] zero in ({tilde over (q)};{tilde over (Ψ)}), the control unit is configured to provide the second transducer driving signal vector {tilde over (q)}.

Claim (Index 4):
The apparatus of  claim 3 , wherein the sound field comprises an acoustically bright zone, an acoustically dark zone and an acoustically grey zone and wherein the cost function J(q;\u03a8) is given by the following equation:\n \u2225 p B \u2212{tilde over (p)} B \u2225 2 +\u03a8 D \u2225p D \u2225 2+\u03a8 G \u2225p G \u2225 2 +\u03b2\u2225q\u2225 2 , and wherein the gradient of J(q;\u03a8) with respect to q is zero in (q n ;\u03a8 n ) under the constraint that |\u03a3 l=1 L Z ml q l | 2 =|p m | 2 \u2265|p m,min | 2  for each m \u03b5 B where B is the set of indices of control points in the bright zone and |p m,min | 2  is a positive real number associated with the respective desired minimum level of sound energy at a respective control point in the bright zone, wherein p B  denotes a sound pressure at a control point in the bright zone, {circumflex over (p)} B  denotes a desired sound pressure at the control point in the bright zone, p D  denotes a respective sound pressure at a plurality of control points in the dark zone, p G  denotes a respective sound pressure at a plurality of control points in the grey zone, Z ml  denotes the element in the m-th row and the l-th column of the transfer matrix Z \u03a8 D  denotes a dark zone weighting parameter, \u03a8 G  denotes a grey zone weighting parameter and p B,min  denotes a desired minimum level of sound energy at the control point in the bright zone.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 94.0
- Lexical Diversity: 2.84507
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14965144', '12832289', '15920849', '15619935', '14767018']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6782128105896121
- 35 USC 102 Novelty (BERT): 0.5199988405559622
- Combined Prediction Score: 0.6623914135862471
- Mean Citation Score: 222.746918
- Max Citation Score: 228.16168
- Similarity Product: 127.09119212640285

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