PATENT CLAIM ANALYSIS

Application Number: 15867977
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["704", "226000"]

Abstract:
A method for processing audio data includes obtaining a noise frame of an audio signal, and decomposing the current noise frame into a noise low-band signal and a noise high-band signal; and encoding and transmitting the noise low-band signal by using a first discontinuous transmission mechanism, and encoding and transmitting the noise high-band signal by using a second discontinuous transmission mechanism. According to the present disclosure, different processing manners are used for the high-band signal and the low-band signal, calculation loads and encoded bits may be saved under a premise of not lowering subjective quality of a codec, and bits that are saved may help to achieve an objective of reducing a transmission bandwidth or improving overall encoding quality.

Claim (Index 1):
A method for an encoder to process audio data, comprising:\n obtaining a current noise frame of an audio signal, wherein the current noise frame includes a current noise low-band signal and a current noise high-band signal, wherein a previous noise low-band signal and a previous noise high-band signal were associated with a previous noise frame of the audio signal when a last time a silence insertion descriptor (SID) comprising a noise high-band parameter of the previous noise high-band signal was transmitted, the previous noise frame being prior to the current noise frame in the audio signal; determining, according to a log-domain energy of the current noise low-band signal, a log-domain energy of the current noise high-band signal, a log-domain energy of the previous noise low-band signal, and a log-domain energy of the previous noise high-band signal, whether to encode a first SID corresponding to the current noise frame or a second SID corresponding to the current noise frame, wherein the first SID comprises a noise low-band parameter of the current noise low-band signal and a noise high-band parameter of the current noise high-band signal, wherein the second SID comprises the noise low-band parameter of the current noise low-band signal, the second SID not comprising the noise high-band parameter of the current noise high-band signal; and encoding the first SID or the second SID according to the determination.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 1.98438
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15188518', '14318899', '12820805', '12881926', '12886159']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3060426611404601
- 35 USC 102 Novelty (BERT): 0.5740901872737857
- Combined Prediction Score: 0.3328474137537927
- Mean Citation Score: 346.50774
- Max Citation Score: 487.7086
- Similarity Product: 412.8921221135735

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test