PATENT CLAIM ANALYSIS

Application Number: 16417195
Application Type: Utility
Filing Date: 2019-05
Publication Date: 2019-09
Patent Classification: ["704", "219000"]

Abstract:
A decoder for processing an audio signal receives an audio bitstream, decodes the bitstream to obtain a set of spectral frequency parameters that are arranged in an order of frequencies, determines a minimum spectral frequency parameter difference from a plurality of calculated spectral frequency parameter differences, determines a start frequency bin for predicting a high band excitation signal according to the minimum spectral frequency parameter difference, generates the high band excitation signal by selecting a frequency band with a preset bandwidth selected from a low band excitation signal according to the start frequency bin, and synthesizes a wideband signal based on the generated high band excitation signal.

Claim (Index 7):
The method according to  claim 1 , wherein decoding the audio bitstream comprises:\n generating a low band signal according to the audio bitstream; and processing, using a linear prediction coefficient (LPC) analysis filter, the low band signal to obtain the low band excitation signal.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 100.0
- Lexical Diversity: 2.01786
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15596078', '15080950', '15481306', '15068908', '15615810']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3815699457390286
- 35 USC 102 Novelty (BERT): 0.6032567052234641
- Combined Prediction Score: 0.4037386216874721
- Mean Citation Score: 419.537974
- Max Citation Score: 536.494
- Similarity Product: 467.0365251082181

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