PATENT CLAIM ANALYSIS

Application Number: 16429387
Application Type: Utility
Filing Date: 2019-06
Publication Date: 2019-09
Patent Classification: ["704", "500000"]

Abstract:
A technology of accurately coding and decoding coefficients which are convertible into linear prediction coefficients even for a frame in which the spectrum variation is great while suppressing an increase in the code amount as a whole is provided. A coding device includes: a first coding unit that obtains a first code by coding coefficients which are convertible into linear prediction coefficients of more than one order; and a second coding unit that obtains a second code by coding at least quantization errors of the first coding unit if (A-1) an index Q commensurate with how high the peak-to-valley height of a spectral envelope is, the spectral envelope corresponding to the coefficients which are convertible into the linear prediction coefficients of more than one order, is larger than or equal to a predetermined threshold value Th1 and/or (B-1) an index Q′ commensurate with how short the peak-to-valley height of the spectral envelope is, is smaller than or equal to a predetermined threshold value Th1'.

Claim (Index 1):
A decoding device comprising:\n circuitry configured to: execute first decoding processing in which the circuitry obtains first decoded values by decoding a first code, the first decoded values corresponding to coefficients which are convertible into linear prediction coefficients of more than one order; execute second decoding processing in which the circuitry obtains second decoded values of more than one order by decoding a second code if (A) an index Q commensurate with how high a peak-to-valley height of a spectral envelope is, the spectral envelope corresponding to the first decoded values of the coefficients which are convertible into the linear prediction coefficients of more than one order, is larger than or equal to a predetermined threshold value Th1 and/or (B) an index Q\u2032 commensurate with how short the peak-to-valley height of the spectral envelope is, is smaller than or equal to a predetermined threshold value Thl'; and execute addition processing in which the circuitry obtains third decoded values corresponding to the coefficients which are convertible into the linear prediction coefficients of more than one order by adding the first decoded values and the second decoded values of corresponding orders if (A) the index Q commensurate with how high the peak-to-valley height of the spectral envelope is, the spectral envelope corresponding to the first decoded values of the coefficients which are convertible into the linear prediction coefficients of more than one order, is larger than or equal to the predetermined threshold value Th1 and/or (B) the index Q\u2032 commensurate with how short the peak-to-valley height of the spectral envelope is, is smaller than or equal to the predetermined threshold value Th1\u2032, wherein orders of the second decoded values are lower than orders of the first decoded values, and as for orders higher than the orders of the second decoded values, the addition processing uses the first decoded values of corresponding orders as the third decoded values without change.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 100.0
- Lexical Diversity: 2.14634
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16429590', '16044678', '15306622', '15307059', '16398429']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3207409666865976
- 35 USC 102 Novelty (BERT): 0.669290494893517
- Combined Prediction Score: 0.3555959195072895
- Mean Citation Score: 518.8408939999998
- Max Citation Score: 656.2731
- Similarity Product: 651.0356566777467

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