Abstract:
A receiving module, checking module, and a controller are provided. The receiving module is configured for receiving external wireless signals. The checking module is configured for checking whether a current wireless signal comprises checking codes of a control signal which is configured for controlling the electronic device and, if yes, generating an activation signal. The controller is configured for switching the electronic device into a power-saving mode if no external wireless signal is received after a predetermined time period and switching the electronic device into a normal mode if the activation signal is received.
Abstract:
An electronic candle includes a main body, a lamp unit fixed on the main body; and a detecting system received in the main body. The main body includes a top plate. The top plate defines a plurality of air ducts communicating with the inside of the main body. The detecting system includes a temperature detector configured for detecting an air temperature traveling through the air ducts from the lamp unit of the inside of the main body and outputting the temperature as an analog electrical signal, an analog-to-digital convertor configured for converting analog electrical signal into a digital signal, a storage unit configured for buffering the digital signal and storing a predetermined temperature value, a switching unit continuing or discontinuing the power to the lamp unit; and a processor for comparing the digital signal with the predetermined temperature and instructing the switching unit to turn off the lamp unit.
Abstract:
A method for encrypting electronic files includes: receiving a request signal consisting of an IP address of a receiver and information about a desired electronic file; obtaining a function and the desired electronic file from a storage unit, and starting to time; obtaining a timing length when the electronic file has been obtained completely; substituting the timing length into the function to obtain an encryption key via an encryption module; and encrypting the electronic file using the encryption key.
Abstract:
A password registering method used in an electronic device includes generating and outputting indicating information according to at least one program as an indicating command executed to indicate the user to input a password; detecting and outputting first input information, recording a first time value when the first input information is detected; detecting and outputting second input information, recording a second time value when the second input information is detected; recording time period between the first time value and the second time value; generating password information according to the input operations and the time period; and registering the password information as a password to unlock the electronic device. A password protection method for unlocking the electronic device and the electronic device are also provided.