Patent ID: 6330514
Filing Date: 2001-12-11
Classification: G01M

Abstract:
A keyboard testing system adapted to test a keyboard having a microprocessor, indicators and keys, the keyboard testing system comprising:a processor-based test unit electrically coupled to the keyboard to control the microprocessor of the keyboard and to receive a response signal therefrom;an indicator sensing device coupled to said test unit, said indicator sensing device being adapted to sense the status of indicators of the keyboard, and said indicator sensing device comprising light detecting means for detecting light emitted from the indicators of the keyboard and for generating an indicator signal corresponding to the status of the indicators of the keyboard, said indicator signal being supplied to said test unit;a key testing device comprising key actuation means controlled by said test unit for actuating/de-actuating each of the keys of the keyboard in a predetermined sequence, wherein a key signal corresponding to the status of each tested key is generated and applied to said test unit;a conveying device controlled by said test unit and operatively coupled to said key testing device to sequentially move said key testing device into proximity to each of the keys of the keyboard in said predetermined sequence in order to actuate/de-actuate the keys of the keyboard by said key testing device; anda warning device driven by said test unit to generate a warning signal when a fault condition is determined by said test unit upon receiving of said response signal from the microprocessor, said indicator signal corresponding to the status of the indicators of the keyboard, and said key signal.