PATENT CLAIM ANALYSIS

Application Number: 15981645
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["704", "500000"]

Abstract:
A audio signal encoding method includes: dividing a frequency band of an audio signal into a plurality of sub-bands, and quantifying a sub-band normalization factor of each sub-band; determining signal bandwidth of bit allocation according to the quantified sub-band normalization factor, or according to the quantified sub-band normalization factor and bit rate information; allocating bits for a sub-band within the determined signal bandwidth; and coding a spectrum coefficient of the audio signal according to the bits allocated for each sub-band. According to embodiments of the present disclosure, during coding and decoding, signal bandwidth of bit allocation is determined according to the quantified sub-band normalization factor and bit rate information. In this manner, the determined signal bandwidth is effectively coded and decoded by centralizing the bits, and audio quality is improved.

Claim (Index 13):
The method according to  claim 12 , wherein the index of the highest sub-band to be allocated bits is less than an index of a highest sub-band of the digital audio signal.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 93.0
- Lexical Diversity: 2.30645
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14789755', '13532237', '15354641', '14675031', '14595672']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3017721779660288
- 35 USC 102 Novelty (BERT): 0.5830542269323019
- Combined Prediction Score: 0.3299003828626561
- Mean Citation Score: 368.81412
- Max Citation Score: 469.9539
- Similarity Product: 441.5495483271538

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