Self-testing video display devices and method of use thereof
AssigneeHewlett-Packard Development Company, L.P.
InventorDavid A. Braun
Life of this patent
Estimating the term…
Abstract
A self-testing video display device and method of use. A video display test program is stored in a video processing unit inside a video display device. The test program includes a plurality of video test patterns and is accessible by entering a “secret” keycode combination on a keypad of the video display device. The self-testing video display device allows a service center operator to evaluate a malfunctioned video display device at the user's location through telephone or internet. An end user may also use the video display test process to set up, evaluate, and calibrate the self-testing video display device at the user's location.
Claims21
A method of testing a video display device at a remote site using internally generated test patterns, said method comprises:
- receiving a request for service on a video display device from an end user at a remote site;
- providing an access code to the end user at the remote site to initiate a video display test on the video display device using information stored inside the video display device;
- receiving reports from the end user at the remote site;
- and
- diagnosing on a functionality of the video display device based on the reports received from the end user.
A method for testing a video display device using internally generated test patterns, the method comprising:
- contacting a service center to obtain a test code,
- entering the test code from a keypad on a video display device to initiate a visual test that displays a plurality of video display test patterns on a video display screen using information stored inside the video display device;
- examining each video display test pattern to generate an evaluation;
- reporting the evaluation to the service center;
- and
- receiving a diagnosis from the service center.
A self-testing video display device, comprising:
- a keypad;
- a video display screen;
- a memory that stores information for a video display test program;
- a processor that extracts the information for video display test program from the memory, converts the information into video display test signals, and executes the video display test program, wherein the information for the video display test program comprises at least one test pattern and a description on how to properly examine the at least one test pattern, and the description is displayed on the video display screen to instruct a user on how to properly examine the at least one test pattern when the at least one pattern is displayed on the video display test screen;
- a controller that sends the video display test signals in a proper format to the video display screen.
A video display device, comprising:
- data entry means;
- means for storing information for a video display test program;
- means for determining if an access code entered using the data entry means is valid;
- and
- means for executing the video display test program in response to determining that the access code is valid.
Dependencies are inferred from the claim text.