PATENT CLAIM ANALYSIS

Application Number: 16370748
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["704", "500000"]

Abstract:
An audio signal coding apparatus includes a time-frequency transformer that outputs sub-band spectra from an input signal; a sub-band energy quantizer; a tonality calculator that analyzes tonality of the sub-band spectra; a bit allocator that selects a second sub-band on which quantization is performed by a second quantizer on the basis of the analysis result of the tonality and quantized sub-band energy, and determines a first number of bits to be allocated to a first sub-band on which quantization is performed by a first quantizer; the first quantizer that performs first coding using the first number of bits; the second quantizer that performs coding using a second coding method; and a multiplexer.

Claim (Index 6):
The audio signal coding apparatus according to  claim 5 , wherein\n the processor calculates a third number of bits, among the tonal number of bits, to be allocated to a third sub-band selected from among the sub-bands on the basis of the analysis result of the tonality, selects as a fourth sub-band a sub-band, among the sub-bands, to which no bit is allocated when a number of bits obtained by subtracting the third number of bits from the total number of bits are allocated to the first sub-band on the basis of the quantized sub-band energy, and calculates a fourth number of bits to be allocated in a case where coding is performed on the fourth sub-band, and selects the third sub-band and the fourth sub-band as other second sub-bands on which quantization is performed by the second quantizer, and determines a number of bits obtained by subtracting the third number of bits and the fourth number of bits from the total number of bits to be the first number of bits to be allocated to the first sub-band.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 99.0
- Lexical Diversity: 2.30769
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15353780', '13977906', '16215079', '13499534', '11183087']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3349999721652193
- 35 USC 102 Novelty (BERT): 0.6393534730972323
- Combined Prediction Score: 0.3654353222584206
- Mean Citation Score: 392.746186
- Max Citation Score: 587.0851
- Similarity Product: 580.5571560666917

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