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 18):
Method for processing a time discrete input audio signal, comprising:\n receiving, as an input of an analysis filterbank, the time discrete input audio signal; analysis filtering, by the analysis filterbank, the time discrete input audio signal to acquire a plurality of first subband signals, wherein the analysis filterbank comprises a number of analysis filterbank channels; receiving, as an input of a synthesis filterbank, a group of first subband signals of the plurality of first subband signals; synthesis filtering, by the synthesis filterbank, the group of first subband signals of the plurality of first subband signals to synthesize a time discrete audio intermediate signal, wherein the group of first subband signals comprises a smaller number of subband signals than the number of analysis filterbank channels of the analysis filterbank, wherein the time discrete audio intermediate signal has a bandwidth being smaller than a bandwidth of the input audio signal, wherein a sampling rate of the time discrete audio intermediate signal is smaller than a sampling rate of the time discrete input audio signal, and wherein at least one of the synthesis filterbank and the 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): 0.4098818654347418
- 35 USC 102 Novelty (BERT): 0.696946303749619
- Combined Prediction Score: 0.4385883092662296
- Mean Citation Score: 638.242812
- Max Citation Score: 778.68494
- Similarity Product: 722.6527425796868

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test