Patent ID: 6727893
Filing Date: 2004-04-27
Classification: G06F

Abstract:
A converter capable of making a five-wire or six-wire resistive touch screen compatible with a four-wire controller is characterized that:an encode-decode circuit composed by at least two multiplexers for outputting re-encoded voltage signals has a conduct port at one end connecting with a conduct port of a five-wire or six-wire touch screen; a conduct port at the other end respectively connects with a signal amplification analog circuit and a conduct port of a four-wire controller; wherein the amplification circuit receives, amplifies and inputs the signals transmitted by the four-wire controller to the encode-decode circuit thereby controlling the multiplexers whether to receive or process the non-encoded and non-decoded voltage signals; it also controls the input and output of the voltage signals re-encoded by the multiplexers thereby recomposing, re-encoding or re-decoding the voltage signals (I/O signals) output or input by the five-wire or six-wire touch screen so as to make the processed voltage signals compatible with the four-wire controller.