PATENT CLAIM ANALYSIS

Application Number: 15894485
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["381", "300000"]

Abstract:
The disclosure relates to an audio signal processing apparatus for processing an input audio signal, comprising a filter unit comprising a plurality of filters, each filter configured to filter the input audio signal to obtain a plurality of filtered audio signals, each filter designed according to an extended mode matching beamforming applied to a surface of a half revolution, the surface partially characterizing a loudspeaker enclosure shape, a plurality of scaling units, each scaling unit configured to scale the plurality of filtered audio signals using a plurality of gain coefficients to obtain a plurality of scaled filtered audio signals, and a plurality of adders, each adder configured to combine the plurality of scaled filtered audio signals, thereby providing an output audio signal for producing a sound field having a beam directivity pattern defined by the plurality of gain coefficients.

Claim (Index 7):
The audio signal processing apparatus ( 100 ) of  claim 6 , wherein the beam directivity pattern is a single beam in a direction defined by an angle \u03c6 0  and wherein the n-th directivity coefficient \u0192 n  is defined by the following equation or an equation derived therefrom:\n \u0192 n =\u221a{square root over (2\u2212\u03b4 n )}\u03b3(\u03c6 0 )cos( n\u03c6 0 ), wherein \u03b3(\u03c6 0 ) is an angular dependent factor given by the following equation or an equation derived therefrom: \u03b3 \ue8a0 ( \u03c6 0 ) = 1 \u2211 n = 0 N \ue89e \ue89e ( 2 - \u03b4 n ) \ue89e cos \ue8a0 ( n \ue89e \ue89e \u03c6 0 ) 2 .

Metadata:
- Claim Count in Document: 2.0
- Percentile: 88.0
- Lexical Diversity: 2.32812
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15619058', '13817945', '14600768', '14040549', '15089879']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7116185616146965
- 35 USC 102 Novelty (BERT): 0.5052835079588096
- Combined Prediction Score: 0.6909850562491078
- Mean Citation Score: 208.22868
- Max Citation Score: 224.01048
- Similarity Product: 139.1088906642437

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