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CPU reset method and device for image display device

A technology of an image display device and a reset method, applied in directions such as a data reset device, can solve problems such as user inconvenience, and achieve the effect of improving user convenience

Inactive Publication Date: 2006-08-09
LEIJIN ELECTRONIC SHENYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In this traditional technology, the user's operation must be required, which brings inconvenience to the user, so it is urgent to develop a simpler technical method to reset the central processing unit (CPU) in the locked (Latch-Up) state.

Method used

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  • CPU reset method and device for image display device

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Embodiment Construction

[0019] With reference to Fig. 1 and embodiment, the central processing unit (CPU) resetting device of image display device of the present invention is described as follows:

[0020] The central processing unit (CPU) 100 not only fully controls each part of the image display device, but also generates a central processing unit (CPU) valid signal (CPU Alive) triggered by "0" and "1" according to a typical example of the present invention. Signal), and provide the central processing unit (CPU) effective signal to the integrator 102.

[0021] The integrator 102 integrates the central processing unit (CPU) valid signal, and if the central processing unit (CPU) valid signal is triggered normally, the integration result is an intermediate value between "0" and "1". That is, the integration result is a value between 0V-3.3V. However, if the central processing unit (CPU) 100 is in a lock-up (Latch-Up) state and the valid signal of the central processing unit (CPU) is continuously main...

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Abstract

The reset method includes following steps: generating and outputting effective signal for expressing operating states of CPU; testing whether effective signal of CPU is normal; if effective signal of CPU is not normal, the reset signal is provided for CPU. The invention is capable of carrying out automatic resetting CPU in lock status without need of userí»s operation so as to raise expedience for users.

Description

Technical field [0001] The invention relates to an image display device, in particular to a method and device for resetting a central processing unit (CPU) of the image display device. Background technique [0002] In recent years, with the development of electricity and electronic technology, the use of microprocessors in most system equipment has become a current trend. A central processing unit (CPU) is also employed in the image display device, so that the user can use the image display device more conveniently while effectively managing the image display device. [0003] However, if an abnormal signal is input to the central processing unit (CPU) of the image display device, it transitions to a locked (Latch-Up) state in which its operation is completely interrupted. When the central processing unit (CPU) is in a Latch-Up state, the central processing unit (CPU) is usually reset after the power of the image display device is turned off. [0004] Since this method of r...

Claims

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Application Information

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IPC IPC(8): G06F1/24
Inventor 李宗炯安秉洙
Owner LEIJIN ELECTRONIC SHENYANG CO LTD
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