PATENT CLAIM ANALYSIS

Application Number: 16158500
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["381", "098000"]

Abstract:
The present technique relates to a frequency band extension apparatus, a frequency band extension method, and a program which are configured to more easily obtain a high quality sound signal. An input signal may be divided into sub-band signals of a plurality of sub-bands, powers of high frequency sub-bands of the input signal may be estimated based on feature values extracted from the input signal to obtain high frequency sub-band power estimation values, the high frequency sub-band powers obtained from the sub-band signals of high-frequency sub-bands of the input signal may be compared with the high frequency sub-band power estimation values, and a high-frequency signal of the input signal may be generated based on a result of the comparison and the sub-band signals.

Claim (Index 5):
The frequency band extension apparatus according to  claim 1 , further comprising:\n a generation unit configured to generate an output signal based on a low-frequency signal and a larger result of the comparison for each of the high frequency sub-bands and the sub-band signals of low frequency sub-bands of the input signal, wherein the generation unit is implemented via at least one processor.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 97.0
- Lexical Diversity: 2.40741
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14412037', '13640500', '13639338', '13499559', '14870268']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7414038662072018
- 35 USC 102 Novelty (BERT): 0.5381576386532151
- Combined Prediction Score: 0.7210792434518031
- Mean Citation Score: 306.6825540000001
- Max Citation Score: 385.9859
- Similarity Product: 359.0316762125075

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