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 3):
The speech/audio coding apparatus according to  claim 1 , further comprising:\n an energy calculation section that calculates group-specific energy; and a distribution calculation section that calculates a group-specific energy envelope distribution, wherein the first bit allocation section allocates, based on the calculated group-specific energy and the group-specific energy envelope distribution, more bits to a group when at least one of the energy and the energy envelope distribution is greater and allocates fewer bits to a group when at least one of the energy and the energy envelope distribution is smaller.

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): 0.291218116407887
- 35 USC 102 Novelty (BERT): 0.5999819339226076
- Combined Prediction Score: 0.322094498159359
- Mean Citation Score: 404.073764
- Max Citation Score: 522.5373
- Similarity Product: 474.65933451368807

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