Patent ID: 7342603

Claim:
An image output test method for an image output device installed with an image detection software, wherein the image detection software comprises at least one unit to be tested, the image output device is connected with an image output test device via an image output terminal of the image output device, the image output test device is further connected with a data transmit terminal of the image output device via a signal output terminal of the image output test device, so that after the image output device executes the image detection software, the processes proceeded between the image output device and the image output test device comprises the steps of: Firstly, the image output device generates a S-Video Y/C signal and a reference value corresponding to a unit to be tested; then the image output terminal of the image output device outputs the S-Video Y/C signal; after a S-Video of the image output test device receives the S-Video Y/C signal, the S-Video Y/C signal is converted into a RGB565 signal; the image output test device further acquires a sampling result from the RGB565 signal; then the signal output terminal of the image output test device transmits the sampling result to the data transmit terminal of the image output; the image output device compares the reference value with the sampling result to record as a comparison result; then the image output device further generates another S-Video Y/C signal and another reference value corresponding to another unit to be tested, and outputs another S-Video Y/C signal to the image output test device until finishing the processes for obtaining another record of another comparison result; and after all units are tested, the image output device utilizes the image detection software to determine whether the reference value and the sampling result in any comparison result are inconsistent, if yes, the image output device outputs a message for failing to pass the test.