PATENT CLAIM ANALYSIS

Application Number: 15775462
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["704", "500000"]

Abstract:
A voice communication system is equipped with a voice encoder which classifies respective bits of a voice information bit string in accordance with the degree of importance which is the magnitude of auditory influence when there is an error therein, classifies a group of bits which are high in degree of importance into a core layer and classifies a group of bits which are not high into an extension layer and a voice decoder which decodes a voice by using the bit strings in both of the core layer and the extension layer on the basis of frequency that the error is detected by error detection processing and when the frequency is low and decodes the voice using all bits or only some bets in the core layer when the frequency is high.

Claim (Index 9):
The voice communication system according to  claim 1 , wherein\n the voice decoder separates and decodes respective parameters of spectrum envelope information, low frequency band voiced/voiceless discrimination information, high frequency band voiced/voiceless discrimination information, pitch period information and gain information included in the voice information bit string, in the low frequency band, determines a mixing ratio when mixing a pitch pulse which is generated in a pitch period that the pitch period information indicates with a white noise on the basis of the low frequency band voiced/voiceless discrimination information and prepares a mixed signal in the low frequency band, in the high frequency band, obtains a spectrum envelope amplitude from the spectrum envelope information, obtains an average value of the spectrum envelope amplitudes per band which is divided on a frequency axis, determines the mixing ratio when mixing the pitch pulse with the white noise per band on the basis of a result of determination of a band in which the average value of the spectrum envelope amplitudes is maximized and the high frequency band voiced/voiceless discrimination information and generates the mixed signal, and adds together the mixed signals in all bands which are divided in the high frequency band and generates the mixed signal in the high frequency band, adds together the mixed signal in the low frequency band and the mixed signal in the high frequency band and generates a mixed sound source signal, and adds the spectrum envelope information and the gain information to the mixed sound source signal and generates a reproduced voice.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 93.0
- Lexical Diversity: 2.25
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['09401068', '09915893', '10615268', '14478839', '10292460']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2619501241727496
- 35 USC 102 Novelty (BERT): 0.5056557134122203
- Combined Prediction Score: 0.2863206830966966
- Mean Citation Score: 229.928128
- Max Citation Score: 261.23724
- Similarity Product: 197.0952687673831

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