Method for unlocking door, method for renting asset and system thereof
US9466160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2014 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Sep 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/215
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for unlocking a door, a method for renting asset and a system thereof are provided in the present invention. The door includes an audio receiver, and the method includes the steps of: storing a unlock sequence into a mobile device; performing a audio modulation to generates a audio modulation voiceprint signal, wherein the frequency range of the audio modulation voiceprint signal is in the audio frequency; playing the audio modulation voiceprint signal by using the speaker of the mobile device; when the audio receiver receives the audio modulation voiceprint signal, the method further includes: performing a audio demodulation to obtain the unlock sequence; and determining whether the door is unlock or not according to the unlock sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.