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 5):
The audio signal processing apparatus ( 100 ) of  claim 2 , wherein the output audio signal ( 111 ) for the 1-th transducer of the transducer array ( 123 a,b,  223 a,b ) is defined by the following equation or an equation derived therefrom:\n z 1 ( t )=\u03a3 n=0 L\u22121 [x ( t )\u2297 R n ( t )] G n,1 , wherein z 1 (t) denotes the output signal as a function of time, x(t) denotes the input audio signal as a function of time, \u2297 denotes the convolution operator, where n can range from 0 to N and N depends on the beam directivity pattern, and G n,1  denotes the n-th gain coefficient for the 1-th transducer.

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): 0.711807209551497
- 35 USC 102 Novelty (BERT): 0.5043221476070252
- Combined Prediction Score: 0.6910587033570498
- Mean Citation Score: 208.22868
- Max Citation Score: 224.01048
- Similarity Product: 140.98330696932794

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