PATENT CLAIM ANALYSIS

Application Number: 15903591
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["704", "500000"]

Abstract:
An audio processing system ( 100 ) accepts an audio bitstream having one of a plurality of predefined audio frame rates. The system comprises a front-end component ( 110 ), which receives a variable number of quantized spectral components, corresponding to one audio frame in any of the predefined audio frame rates, and performs an inverse quantization according to predetermined, frequency-dependent quantization levels. The front-end component may be agnostic of the audio frame rate. The audio processing system further comprises a frequency-domain processing stage ( 120 ) and a sample rate converter ( 130 ), which provide a reconstructed audio signal sampled at a target sampling frequency independent of the audio frame rate. By its frame-rate adaptability, the system can be configured to operate frame-synchronously in parallel with a video processing system that accepts plural video frame rates.

Claim (Index 5):
A method of processing an audio bitstream segmented into audio frames carrying audio data, the method comprising:\n receiving, in a front-end component, the audio frames at a first audio frame rate; processing the audio frames to output a first time-domain representation of an intermediate signal using a first mode; receiving, in an analysis filterbank, the time domain representation of the intermediate signal and outputting a second frequency domain representation of the intermediate signal; receiving the second frequency domain representation of the intermediate signal and outputting a frequency domain representation of a processed audio signal; receiving, in a synthesis filterbank, the frequency domain representation of the processed audio signal and outputting a time-domain representation of the processed audio signal; and receiving, in a sample rate converter, the time-domain representation of the processed audio signal and outputting the reconstructed audio signal sampled at the target sampling frequency, wherein the first mode is different than a second mode utilized by the sample rate converter, and wherein the first mode is selected for the first audio frame rate of the audio bitstream.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 88.0
- Lexical Diversity: 1.91026
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14779170', '14781232', '15519007', '15255009', '12811419']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2875885680564338
- 35 USC 102 Novelty (BERT): 0.5325712014755004
- Combined Prediction Score: 0.3120868313983405
- Mean Citation Score: 272.311018
- Max Citation Score: 372.59528
- Similarity Product: 324.28403914155007

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