PATENT CLAIM ANALYSIS

Application Number: 16038946
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["381", "320000"]

Abstract:
The application relates to a filter bank for an audio processing device, e.g. a hearing aid. The filter bank comprises an analysis filter bank comprising a plurality of M first filters h m (n), where m=0, 1, . . . , M−1 is a frequency band index, n being a time index, the first filters h m (n) having a first filter length of L hm ; a synthesis filter bank comprising a plurality of M second filters g m (n), m=0, 1, . . . , M−1, the second filters g m (n) having second filter lengths of L gm ; the plurality of first and second filters being arranged in pairs, each pair forming a frequency channel. the first filters h m (n) exhibiting a first filter delay τ h , the second filters g m (n) exhibiting a second filter delay τ g , each of the first filter lengths L hm  and the second filter lengths L gm  is uneven, and wherein the first filters are subject to the constraint that the sum of the first filters h m (n) of the analysis filter bank is a delta function δ(n−τ h ).

Claim (Index 7):
A method of implementing a filter bank for an audio processing device comprising\n providing an analysis filter bank comprising a plurality of M first filters h m (n), where m=0, 1, . . . , M\u22121 is a frequency band index, n being a time index, the first filters h m (n) having first filter lengths of L hm ; providing a synthesis filter bank comprising a plurality of M second filters g m (n), m=0, 1, . . . , M\u22121, the second filters g m (n) having second filter lengths of L gm ; arranging the plurality of first and second filters in pairs, each pair forming a frequency channel, arranging that the first filters h m (n) exhibit a first filter delay \u03c4 h , arranging that the second filters g m (n) exhibit a second filter delay \u03c4 g , arranging that each of the first filter lengths L hm  and the second filter lengths L gm  is uneven, and arranging that the first filters are subject to the constraint that the sum of the first filters h m (n) of the analysis filter bank is a delta function, \u03b4(n\u2212\u03c4 h ).

Metadata:
- Claim Count in Document: 5.0
- Percentile: 95.0
- Lexical Diversity: 3.12329
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15482049', '12833171', '10479952', '15441652', '15586480']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.655162679281004
- 35 USC 102 Novelty (BERT): 0.553070050039291
- Combined Prediction Score: 0.6449534163568327
- Mean Citation Score: 263.314328
- Max Citation Score: 400.8222
- Similarity Product: 366.1086300290824

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