PATENT CLAIM ANALYSIS

Application Number: 15761448
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-02
Patent Classification: ["381", "066000"]

Abstract:
An audio signal processing apparatus comprises a receiver ( 403 ) receiving an audio signal sampled at a first sampling frequency, the audio signal having a maximum frequency below half the first sampling frequency by a first frequency margin. A tilter bank ( 405 ) generates subband signals for the digital audio signal using overlapping sub-filters. A first frequency shifter ( 407 ) applies a frequency shift to at least one subband of the set of subbands and a decimator ( 409 ) decimates the subband signals by a N decimation factor resulting in a decimated sampling frequency being at least twice a bandwidth of each of the overlapping sub-filters. The frequency shift for a subband is arranged to shift the subband to a frequency interval being a multiple of a frequency interval from zero to half the decimated sample frequency. The subband may be individually processed and the processed subbands may subsequently be combined to generate a full band output signal.

Claim (Index 12):
The audio signal processing apparatus of  claim 1  wherein the threshold frequency is no less than 10% lower than half the first sampling frequency.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 2.07407
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14824998', '15214694', '15470786', '14807554', '11834608']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7289954326748992
- 35 USC 102 Novelty (BERT): 0.5371910745803395
- Combined Prediction Score: 0.7098149968654432
- Mean Citation Score: 339.96639399999987
- Max Citation Score: 356.3304
- Similarity Product: 243.3560661377907

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