US 6,608,646 B1 · Method and device for detecting and correcting a malfunction of a horizontal/vertical processor used in an image display device

Abstract

A method for detecting and correcting an error of a device in which a malfunction of a horizontal/vertical processor used in an image display device is detected and corrected. A microcomputer initializes the horizontal/vertical processor, determines whether the horizontal/vertical processor is activated, sets an error check state for a malfunction check of the horizontal/vertical processor if the horizontal/vertical processor is activated, checks whether the horizontal/vertical processor has malfunctioned, and returns to the initialization step if the horizontal/vertical processor has malfunctioned. Accordingly, a malfunctioning horizontal/vertical processor can be rapidly converted to a normal operation state, and a damage to a product occurring due to the malfunction is prevented in advance to stabilize the quality of the product.

Claims17

Dependent claims

A method for detecting and correcting an error of a device, comprising steps of:

initializing the device;
determining whether the device is activated;
setting an error check state for a malfunction check of the device if the device is activated;
checking whether the device is of malfunction;
returning to the step of setting an error check state if the device is normally activated;
and
returning to the initializing step if the device is of malfunction.

4 more elements

An apparatus for detecting and correcting an error of a device, comprising:

a horizontal/vertical processor operated in response to a received clock signal and a received data signal, and outputting a vertical blanking signal in response to an external vertical synchronization signal;
a signal generation part inputting an applied electric power, and outputting the electric power as a vertical blanking signal for an error detection in response to the vertical blanking signal;
and
a microcomputer for checking whether the vertical blanking signal for an error detection is generated based on a predetermined first check reference time period, comparing the vertical blanking signal for an error detection with a predetermined reference level, performing a counting operation in response to the vertical blanking signal for an error detection during a second check reference time period based on a result of the comparison, and performing one of initializing the horizontal/vertical processor and checking whether the vertical blanking signal for an error detection is generated based on whether the counted value of the vertical blanking signal for an error detection is larger than a predetermined reference counting value.

1 more element

Dependencies are inferred from the claim text.

Method and device for detecting and correcting a malfunction of a horizontal/vertical processor used in an image display device

Life of this patent

Method and device for detecting and correcting a malfunction of a horizontal/vertical processor used in an image display device

Life of this patent

Abstract

Claims17