PATENT CLAIM ANALYSIS

Application Number: 15986839
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["704", "500000"]

Abstract:
An audio encoding method and a related apparatus are disclosed. The audio coding method includes: obtaining an audio signal; obtaining spectral coefficients of a current frame of the audio signal; obtaining a set of reference coding parameters of the current frame; determining whether the set of reference coding parameters satisfy a preset parameter condition; when it is determined that the reference coding parameters satisfy the preset parameter condition, encoding the spectral coefficients of the current frame using a transform coded excitation (TCX) algorithm. The audio encoding method and the related apparatus help improve encoding quality or encoding efficiency in audio signal encoding.

Claim (Index 15):
The audio signal encoder according to  claim 11 , wherein the current frame comprises a subband i, a subband j and a subband y;\n wherein the highest frequency bin of the subband i is lower than the lowest frequency bin of the subband j, the highest frequency bin of the subband j is higher than a critical frequency bin F2, and F2 is in a range of 4.8 kHz to 8 kHz; wherein the reference coding parameters comprise:\n a subband average energy of spectral coefficients in the subband i, and a subband average energy of spectral coefficients in the subband j; and \n a spectral peak of spectral coefficients in the subband y, and a spectral average of the spectral coefficients in the subband y; \n wherein the preset parameter condition comprises:\n the subband average energy of the spectral coefficients in the subband j is greater than a product of the subband average energy of the spectral coefficients in the subband i multipled by a constant T4; and \n the spectral peak of the spectral coefficients in the subband y is less than a product of the spectral average of the spectral coefficients in the subband y multipled by a constant T45.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 93.0
- Lexical Diversity: 2.09259
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15408442', '14952902', '14781219', '15650714', '13173367']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2957097515188279
- 35 USC 102 Novelty (BERT): 0.5640211737922795
- Combined Prediction Score: 0.322540893746173
- Mean Citation Score: 255.92221000000004
- Max Citation Score: 409.44153
- Similarity Product: 299.96600583227814

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