PATENT CLAIM ANALYSIS

Application Number: 16362056
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["381", "313000"]

Abstract:
A hearing aid comprises a BTE-part adapted for being located behind an ear (ear) of a user, and comprising a) a multitude M of microphones, which—when located behind the ear of the user—are characterized by respective transfer functions, H BTEi (θ, φ, r, k), representative of propagation of sound from sound sources S to the respective microphones b) a memory unit comprising complex, frequency dependent constants W i (k)′, i− 1,  . . . , M, c) a beamformer filtering unit for providing a beamformed signal Y as a weighted combination of the microphone signals using said complex, frequency dependent constants The frequency dependent constants are determined to provide a resulting transfer function H pinna (θ, φ,  r, k )=Σ i=1 M W i ( k )· H BTEi (θ, φ,  r, k ), so that a difference between the resulting transfer function H pinna (θ, φ, r, k) and a transfer function H ITE (θ, φ, r, k) of a microphone located close to or in the ear canal fulfils a predefined criterion.

Claim (Index 1):
A hearing aid (HD) comprising a part, termed a BTE-part (BTE), adapted for being located in an operational position at of behind an ear (Ear) of a user, the BTE-part comprising\n A multitude M of microphones (M BTEi , i=1, . . . , M) for converting an input sound to respective electric input signals (IN i , i=1, . . . , M), the multitude of microphones of the BTE-part, when located behind the ear of the user being characterized by transfer functions H BTEi (\u03b8, \u03c6, r, k), i=1, . . . , M, representative of propagation of sound from sound sources S located at (\u03b8, \u03c6, r) around the hearing aid to the respective microphones (M BTEi , i\u22121, . . . , M), when the BTE-part is located at its operational position, (\u03b8, \u03c6, r) representing spatial coordinates and k is a frequency index, a memory unit comprising complex, frequency dependent constants W i (k)\u2032, i=1, . . . , M, a beamformer filtering unit (BFU) for providing a beamformed signal Y as a weighted combination of said multitude of electric input signals using said complex, frequency dependent constants W i (k)\u2032, i =1, . . . , M: Y(k)=W 1 (k)\u2032\u00b7IN 1 + . . . +W M (k)\u2032\u00b7IN M , and wherein said frequency dependent constants W i (k)\u2032, i\u22121, . . . , M, are determined to provide a resulting transfer function\n H pinna (\u03b8, \u03c6,  r, k )=\u03a3 i=1 M W i ( k )\u00b7 H BTEi (\u03b8, \u03c6,  r, k ), \n so that a difference between the resulting transfer function H pinna (\u03b8, \u03c6, r, k) and a transfer function H ITE (\u03b8, \u03c6, r, k) of a microphone located close to or in the ear canal (ITE) fulfils a predefined criterion, wherein the predefined criterion comprises determining said frequency dependent constants W i (k), i=1, . . . , M, to minimize a cost function comprising the resulting transfer function H pinna (\u03b8, \u03c6, r, k), the transfer function H ITE (\u03b8, \u03c6, r, k) of a microphone located close to or in the ear canal, and a weighting function, \u03c1(\u03b8, \u03c6, r, k).

Metadata:
- Claim Count in Document: 4.0
- Percentile: 99.0
- Lexical Diversity: 2.34409
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15482006', '15482188', '13872459', '13872720', '16194082']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7039563673097862
- 35 USC 102 Novelty (BERT): 0.7159563562617901
- Combined Prediction Score: 0.7051563662049866
- Mean Citation Score: 487.438498
- Max Citation Score: 775.2109
- Similarity Product: 749.7923312326433

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