Method and system for managing time information necessary for an embedded system
OwnerHung-Rok Kwoninventor
Life of this patent
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Abstract
A time information management method and system for providing time information necessary for an embedded system, without using a hardware real-time clock device. The method and system comprises accessing a time server providing real-time information through the Internet during system initialization; acquiring the real-time information from the time server through a message exchange with the time server; and defining the acquired real-time information as the system's time information and updating the time information depending on a timer operation of the real-time operating system.
Claims13
A method for managing time information, comprising the steps of:
- during system initialization of an embedded system employing a real-time operating system with an Internet access function, accessing a time server providing real-time information through the Internet;
- acquiring the real-time information from the time server through a message exchange with the time server;
- and
- defining the acquired real-time information as the time information and updating the time information depending on a timer operation of the real-time operating system.
A method for managing time information, comprising the steps of:
- during system initialization of an embedded system employing a real-time operating system with an Internet access function, accessing a time server providing real-time information through the Internet;
- acquiring the real-time information from the time server through a message exchange with the time server;
- upon failure to acquire the real-time information from the time server, displaying a current time information input request message and receiving current time information input by a user responding to the current time information input request message;
- and
- defining the acquired real-time information or the current time information input by the user as the time information and updating the time information depending on a timer operation of the real-time operating system.
A method for managing time information, comprising the steps of:
- during system initialization of an embedded system employing a real-time operating system with an Internet access function, analyzing system configuration information to determine a time information acquisition source;
- when the time information acquisition source is a time server providing real-time information, accessing the time server through the Internet;
- acquiring the real-time information from the time server through a message exchange with the time server;
- when the time information acquisition source is a user or upon failure to receive the real-time information from the time server, displaying a current time information input request message and receiving current time information input by the user;
- and
- defining the acquired real-time information or the current time information input by the user as the time information and updating the time information depending on a timer operation of the real-time operating system.
A system for managing time information, comprising:
- a time server providing real-time information through the Internet;
- and
- an embedded system employing a real-time operating system with an Internet access function, accessing the time server during initialization of the embedded system, acquiring the real-time information from the time server, defining the acquired real-time information as initial time information, and updating the initial time information depending on a timer operation of the real-time operating system.
Dependencies are inferred from the claim text.