PATENT CLAIM ANALYSIS

Application Number: 15761694
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-12
Patent Classification: ["455", "570000"]

Abstract:
An echo time delay detection method, an echo elimination device, and terminal equipment are provided. The echo time delay detection method includes: obtaining an audio signal transmitted through air and acquired by an audio input device of terminal equipment when detecting a call access request, the audio signal corresponding to an audio output by an audio output device of the terminal equipment; converting the audio signal to obtain a signal to be processed; determining a reference signal corresponding to the audio signal; and determining an echo time delay value according to the reference signal and the signal to be processed.

Claim (Index 6):
The echo time delay detection method according to  claim 5 , wherein the selecting comprises:\n determining a weighting factor corresponding to each frame of the signal to be processed; performing smooth processing on the XOR accumulation processing result of a corresponding frame according to the weighting factor corresponding to each frame of the signal to be processed, to obtain a smooth XOR accumulation processing result of each frame; and selecting a smooth XOR accumulation processing result that meets the set condition from smooth XOR accumulation processing results of all the frames.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 90.0
- Lexical Diversity: 2.27083
- Patent Class: 455.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14060141', '14400289', '15651757', '13933005', '15341520']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7007789086398571
- 35 USC 102 Novelty (BERT): 0.4879479287409063
- Combined Prediction Score: 0.679495810649962
- Mean Citation Score: 165.783996
- Max Citation Score: 169.41493
- Similarity Product: 111.11856618716958

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