PATENT CLAIM ANALYSIS

Application Number: 16194082
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["381", "313000"]

Abstract:
A hearing aid comprises a) first and second microphones b) an adaptive beamformer filtering unit comprising, b 1 ) a memory comprising a first and second sets of complex frequency dependent weighting parameters representing a first and second beam patterns, b 3 ) an adaptive beamformer processing unit providing an adaptation parameter β opt (k) representing an adaptive beam pattern, b 4 ) a memory comprising a fixed adaptation parameter β fix (k) representing a third, fixed beam pattern, b 5 ) a mixing unit providing a resulting complex, frequency dependent adaptation parameter β mix (k) as a combination of said fixed and adaptively determined frequency dependent adaptation parameters β fix (k) and β opt (k), respectively, and b 6 ) a resulting beamformer (Y) for providing a resulting beamformed signal Y BF  based on first and second microphone signals, said first and second sets of complex frequency dependent weighting parameters, and said resulting complex, frequency dependent adaptation parameter β mix (k).

Claim (Index 19):
A method of constraining an adaptive beamformer for providing a resulting beamformed signal Y BF  of a hearing aid from first IN 1  and second IN 2  electric input signals, the method comprising\n Storing first and second complex frequency dependent weighting parameters W o1 (k), W o2 (k), and W c1 (k), W c2 (k), respectively, representing first and second beam patterns O and C, respectively, where k is a frequency index, k=1, 2, . . . , K, Adaptively determining an adaptation parameter \u03b2 opt (k) representing an adaptive beam pattern, Storing a fixed frequency dependent adaptation parameter \u03b2 fix (k) representing a third fixed beam pattern (OO), Providing a complex, frequency dependent adaptation parameter \u03b2 mix (k) as a combination of said fixed frequency dependent adaptation parameter \u03b2 fix (k) and said adaptively determined frequency dependent adaptation parameter \u03b2 opt (k), Providing a resulting beamformer (Y) as a weighted combination of said first and second beam patterns O and C: Y(k)=O(k)\u2212\u03b2 mix (k)\u00b7C(k), where \u03b2 mix (k) is said complex, frequency dependent adaptation parameter, and providing said resulting beamformed signal Y BF  from the first IN 1  and second IN 2  electric input signals.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 98.0
- Lexical Diversity: 2.92308
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15482188', '15608294', '15482006', '15387124', '15601521']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6837978685331476
- 35 USC 102 Novelty (BERT): 0.6919874307915894
- Combined Prediction Score: 0.6846168247589919
- Mean Citation Score: 419.275522
- Max Citation Score: 737.1185
- Similarity Product: 682.8134205076398

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