Time information amending system and method thereof

Abstract

This invention discloses a kind of time information modified system which is used to the electronic equipment at least includes an external device, a timing unit, a first time working-storage section, a second time working-storage section and a control unit. The timing unit is used to calculate the time information. The first time working-storage section provides the timing unit storage time information and provides the external device fetching time information. The second time working-storage section is used that when the external device is fetching the time information of the first time working-storage section switch to the second time working-storage section and then provides the timing unit storage time information. So this invention can protect and modify the fetching time information of the device through a time movement working-storage section. Besides that, when the time of fetching the information for the device exceeds the preinstall time with still unfinished the system can return the count of time movement working-storage section to the time working-storage section automatically at the same time count the time information endurance that can ensure the correction of the electronic device time information effectively.

Description

technical field [0001] The present invention provides a system and method for correcting time information, which uses a time shifting register to correct errors in time information. Background technique [0002] see Figure 1 , is a block diagram showing the time information system of the known technology electronic device, which includes an external device 11, a real-time timer 12 and a time temporary storage area 13, the real-time timer 12 is used to calculate a time information 121, the time temporary The storage area 13 is used for the real-time timer 12 to store the time information 121 and for the external device 11 to read the time information 121 . However, in this way, when the external device reads the time information, the situation of reading the wrong time information may occur. Please refer to FIG. The time information stored in the temporary storage area is arranged in the order of year, month, day, hour, minute, and second, and the external device also reads...

AI Technical Summary

Problems solved by technology

However, in this way, when the external device reads the time information, the situation of reading the wrong time information may occur. Please refer to FIG. The time information stored in the temporary storage area is arranged in the order of year, month, day, hour, minute, and second, and the external device also reads the time information in the order of year, month, day, hour, minute, and second. Suppose it is at 23:59:59 on May 11, 2006 The external device is reading the third field of the time information. At this time, the real-time timer updates the time information to 0:00:00 on May 12, 2006, causing the external device to read the fourth and subsequent fields. Errors will occur, and the read time information will become 0:00:00 on May 11, 2006, which is very different from the correct time, which may cause errors in the setting or operation of electronic devices

If when the external device reads the time information, stop the real-time timer to update the time temporary storage area until the external device completes the reading of the time information, it will affect the accuracy of the time information counting, and if the external device reads the time information due to a communication error The time expires, the time information will stop and cannot be updated

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