PATENT CLAIM ANALYSIS

Application Number: 16090096
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["367", "197000"]

Abstract:
A sound password unlocking method, comprises unlocking procedures: collecting a sound password signal that the user plays and performing the analog to digital conversion (11); Inputting the converted sound password signal to a reference signal input end of an adaptive noise cancellation module; inputting an original signal to an original signal input end of the adaptive noise cancellation module; producing a first output signal in adaptive noise cancellation (12); Calculating the difference between the first output signal and the original signal (13); Comparing the difference between the first output signal and the original signal with a standard difference; determining the sound password is correct if the two difference values are identical and enabling the motor to drive a lock cylinder to open otherwise no unlock operation executed (14). The sound password unlocking method provided by the present invention, based on adaptive noise cancellation is hard to be cracked, which is reliable and safe. The lock could be locked by sound password recognition.

Claim (Index 4):
The sound password unlocking method according to  claim 2 , In Step (13), the method for calculating the signal-to-noise ratio gain of the original signal before and after adaptive noise cancellation comprises the following steps:\n (131) calculating the signal-to-noise ratio of the first output signal; (132) calculating the signal-to-noise ratio of the original signal; (133) calculating the difference value between the signal-to-noise ratio of the first output signal and the signal-to-noise ratio of the original signal; obtaining the signal-to-noise ratio gain between the first output signal and the original signal.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 97.0
- Lexical Diversity: 2.07955
- Patent Class: 367.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12241801', '14015319', '13491373', '15619252', '15075635']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5474911372109287
- 35 USC 102 Novelty (BERT): 0.4815364596017147
- Combined Prediction Score: 0.5408956694500073
- Mean Citation Score: 160.51683
- Max Citation Score: 166.82626000000005
- Similarity Product: 118.67239102439645

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

Dataset: test