PATENT CLAIM ANALYSIS

Application Number: 15862807
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["381", "098000"]

Abstract:
A sound field device is disclosed that comprises an elevation cue estimator, a low-frequency filter estimator, and a high-frequency filter estimator. The elevation cue-estimator is configured to estimate an elevation cue of a head-related transfer function (HRTF) of at least one listener. The low-frequency filter estimator is configured to estimate one or more low-frequency filter elements based on the elevation cue. The high-frequency filter estimator is configured to estimate one or more high-frequency filter elements based on the elevation cue. An estimation method of the low-frequency filter estimator is different from an estimation method of the high-frequency filter estimator. The one or more low-frequency filter elements and the one or more high-frequency filter elements are for driving an array of loudspeakers to generate an elevated sound impression at a bright zone.

Claim (Index 3):
The sound field device of  claim 2 , wherein the optimizer is configured to determine the one or more low-frequency filter elements u(k) as:\n min u(k) \u2225H b ( k ) u ( k )\u2212HRTF el (\u03b8, k ) P d \u2225 2  subject to \u2225u(k)\u2225 2 \u2264N 1  and \u2225H j (k)u(k)\u2225\u2264N j , where N j =aM 1 \u2225P d HRTF el (\u03b8,k)\u2225 2 /M j  for j\u22652, N 1  is a predetermined parameter, H b (k) is an acoustic transfer function matrix from the array of loudspeakers to the one or more bright zone control points inside the bright zone, H j (k) is an acoustic transfer function matrix from the array of loudspeakers to one or more quiet zone control points inside at least one quiet zone, P d  is a desired sound field for the one or more control points, M 1  is a number of control points within the bright zone and M j  is a number of control points within a j-th quiet zone, wherein j\u22652.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 86.0
- Lexical Diversity: 2.51786
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15786278', '14725063', '15722637', '13885392', '15123934']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6711898491972569
- 35 USC 102 Novelty (BERT): 0.498480962254297
- Combined Prediction Score: 0.6539189605029609
- Mean Citation Score: 207.299404
- Max Citation Score: 214.71515
- Similarity Product: 154.25865895916817

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test