PTC R&D Center has been awarded a patent for "Audio Playing System " in China.

 

 

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R&D Center Mr. De-Yu Kao have been awarded a patent for "Sigma-Delta Circuit And Related Method with Time Sharing Architecture" in USA.

 

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R&D Center Mr. Robert Li have been awarded a patent for "Audio Amplifier Driven by Single Voltage Source" in USA.

 

 

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R&D Center Ms. Vicky Chiang, Mr. Boer Wu and Mr. Kenny Chen have been awarded a patent for "Testing Circuit Board" in China.

 

 

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PTC R&D Center has been awarded a patent for "ESD Circuit" in Taiwan.

 

 

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PTC R&D Center has been awarded a patent for "Charging circuit, integrated circuit and controlling method" in Taiwan.

 

 

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PTC R&D Center has been awarded a patent for "CONTROLLING APPARATUS FOR AN ELECTRONIC SYSTEM" in Taiwan.

 

 

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Mr. Leo Chou of R&D Center has been awarded a patent for "Vacuum Fluorescent Display Controlling Circuit" in Taiwan.

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PTC R&D Center has been awarded a patent for "Circuit Testing Apparatus" in Taiwan.

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PTC has been awarded a patent for "Light emitting diode driver circuit with current Compensation" in China.

 

 

 

 

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