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 12):
The echo time delay detection method according to  claim 5 , further comprising:\n recording an output time point of each frame of the reference signal and an acquisition time point of each frame of the signal to be processed, and wherein the determining the time delay value corresponding to the frame number corresponding to the selected processing result comprises: determining the frame number corresponding to the selected processing result; and determining a difference between the acquisition time point of the signal to be processed corresponding to the frame number and the output time of the reference signal corresponding to the frame number as the time delay value corresponding to the frame number.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 90.0
- Lexical Diversity: 2.27083
- Patent Class: 455.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14060141', '14400289', '15651757', '13933005', '15341520']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6764825228088737
- 35 USC 102 Novelty (BERT): 0.4803861469362865
- Combined Prediction Score: 0.656872885221615
- Mean Citation Score: 165.783996
- Max Citation Score: 169.41493
- Similarity Product: 116.79549379344463

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