Qeys Instruments developed new sensors, including RFID sensing tags and fingerprint sensors based on pulse processing technologies. The unique pulse processing technology introduces a new method of communication and signal conversion, and enables a new format of signal, in which digital signals are mixed with discrete signals carrying analog sensing values. This new signal format makes the communications among digital devices and analog sensors efficient and reliable.
A fingerprint sensing device that measures the capacitance between an array of electrode
plates and finger skin using pulse processing, in which pulse width rather than voltage
level, is used for capacitance measurement and digital signal conversionmore