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A kind of Quick Response Code noise-reduction method and system based on crisscross quick binaryzation
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A kind of Quick Response Code extracting method and system in the case where uneven illumination is even
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A kind of ASK demodulator circuits without low pass filter
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A kind of card reader of the Contact Type Ic Card for being embedded in safe module
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A kind of card reader of compatible contact and non-contact IC card
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The card reader circuit and card reader of compatible magnetic stripe card and Contact Type Ic Card
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A kind of three-in-one Table top type reader
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Multifunctional LDO circuit applicable to low-power-consumption RFID reader
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A kind of social security card reader
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