PTC has been awarded "METHODS FOR DETECTING TOUCH POINTS ON TOUCH PANEL AND TOUCH DEVICES" in USA.

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PTC has been awarded "LED Driver Apparatus" in China.

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PTC has been awarded "LED Driver Circuit" in China.

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PTC has been awarded "METHOD AND APPARATUS FOR DRIVING LIGHT EMITTING DIODE" in China.

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PTC has been awarded "TOUCH SENSING CIRCUIT AND METHOD" in USA.

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PTC has been awarded "A lighting system and controlling method thereof" in China.

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PTC has been awarded "TOUCH SENSOR CIRCUIT AND TOUCH DISPLAY DEVICE" in USA.

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PTC has been awarded "CURRENT MIRROR CIRCUITS" in China.

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PTC has been awarded "Relaxation Oscillator" in ROC.

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