PATENT CLAIM ANALYSIS

Application Number: 16141934
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["704", "205000"]

Abstract:
Provided are a voice audio encoding device, voice audio decoding device, voice audio encoding method, and voice audio decoding method that efficiently perform bit distribution and improve sound quality. Dominant frequency band identification unit identifies a dominant frequency band having a norm factor value that is the maximum value within the spectrum of an input voice audio signal. Dominant group determination units and non-dominant group determination unit group all sub-bands into a dominant group that contains the dominant frequency band and a non-dominant group that contains no dominant frequency band. Group bit distribution unit distributes bits to each group on the basis of the energy and norm variance of each group. Sub-band bit distribution unit redistributes the bits that have been distributed to each group to each sub-band in accordance with the ratio of the norm to the energy of the groups.

Claim (Index 2):
The speech/audio coding apparatus according to  claim 1 , further comprising a dominant frequency band identification section that identifies a dominant frequency band which is a subband in which an energy envelope of the frequency spectrum exhibits a local maximum value, wherein\n the group determining section determines the dominant frequency band and subbands on both sides of the dominant frequency band each forming a descending slope of an energy envelope as dominant groups and determines continuous subbands other than the dominant frequency band as non-dominant groups.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 97.0
- Lexical Diversity: 2.17391
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14650093', '15673957', '15358184', '14001977', '15650714']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2959484994816523
- 35 USC 102 Novelty (BERT): 0.5865098483708345
- Combined Prediction Score: 0.3250046343705705
- Mean Citation Score: 404.073764
- Max Citation Score: 522.5373
- Similarity Product: 412.3299742324233

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