PATENT CLAIM ANALYSIS

Application Number: 16016284
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["704", "500000"]

Abstract:
An apparatus for processing an input audio signal relies on a cascade of filterbanks, the cascade having a synthesis filterbank for synthesizing an audio intermediate signal from the input audio signal, the input audio signal being represented by a plurality of first subband signals generated by an analysis filterbank, wherein a number of filterbank channels of the synthesis filterbank is smaller than a number of channels of the analysis filterbank. The apparatus furthermore has a further analysis filterbank for generating a plurality of second subband signals from the audio intermediate signal, wherein the further analysis filterbank has a number of channels being different from the number of channels of the synthesis filterbank, so that a sampling rate of a subband signal of the plurality of second subband signals is different from a sampling rate of a first subband signal of the plurality of first subband signals.

Claim (Index 17):
Method of processing a time discrete input audio signal, comprising:\n receiving, by a synthesis filterbank, as an input of the synthesis filterbank, a plurality of time discrete first subband signals representing the time discrete input audio signal and having been generated by an analysis filterbank, synthesizing, by the synthesis filterbank, an audio intermediate signal from the plurality of time discrete first subband signals, wherein a number of filterbank channels of the synthesis filterbank is smaller than a number of channels of the analysis filterbank; and receiving, by a further analysis filterbank, as an input of the further analysis filterbank, the audio intermediate signal; generating, by the further analysis filterbank, a plurality of time discrete second subband signals from the audio intermediate signal, wherein the further analysis filterbank comprises a number of channels being different from the number of channels of the synthesis filterbank, wherein a sampling rate of a time discrete subband signal of the plurality of second time discrete subband signals is different from a sampling rate of a time discrete first subband signal of the plurality of time discrete first subband signals, and wherein at least one of the synthesis filterbank and the further analysis filterbank comprises a hardware implementation.

Metadata:
- Claim Count in Document: 27.0
- Percentile: 94.0
- Lexical Diversity: 3.12245
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15459520', '13604364', '13604336', '13514896', '15226272']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4119270501609837
- 35 USC 102 Novelty (BERT): 0.6919051299616505
- Combined Prediction Score: 0.4399248581410504
- Mean Citation Score: 638.242812
- Max Citation Score: 778.68494
- Similarity Product: 708.0182305279577

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