Abstract: A light emitting device, a light receiving device and a data transmission system and a data transmission method using the same are provided. The data transmission system includes the light emitting device and the light receiving device. The light emitting device includes a light emitting unit and a control circuit, and the light receiving device includes an image capture unit, a recognition unit and a decoding unit. The control circuit controls the light emitting unit to sequentially display a plurality of pattern images in a plurality of frame times to form a spatiotemporal pattern image according to setting data corresponding to a temporal domain and a spatial domain. The image capture unit captures the spatiotemporal pattern image. The recognition unit recognizes the spatiotemporal pattern image to output recognized data. The decoding unit decodes the recognized data to output decoded data.

Abstract: A light emitting device, a light receiving device and a data transmission system and a data transmission method using the same are provided. The data transmission system includes the light emitting device and the light receiving device. The light emitting device includes a light emitting unit and a control circuit, and the light receiving device includes an image capture unit, a recognition unit and a decoding unit. The control circuit controls the light emitting unit to sequentially display a plurality of pattern images in a plurality of frame times to form a spatiotemporal pattern image according to setting data corresponding to a temporal domain and a spatial domain. The image capture unit captures the spatiotemporal pattern image. The recognition unit recognizes the spatiotemporal pattern image to output recognized data. The decoding unit decodes the recognized data to output decoded data.

Abstract: A tax refund system and method are disclosed. By the tax refund system of the present invention, a tax refund card embedded with memory is utilized to purchase merchandises in a tax-free shop so that the work of the tax-free shop can record the information relating to those purchased merchandises matching tax-refund regulations into the memory of the tax refund card for enabling the recorded information to be used as refund basis. The tax refund system and method can avoid the trouble of safekeeping many tax-return receipts while purchasing merchandises, and also it can facilitate tax refund procedure and thus enhanced the service convenience. Moreover, the tax refund card can be integrated with passports so that the certification of identity for tax-refund can be facilitated.

Abstract: A pallet apparatus equipped with a radio frequency recognition module includes a radio recognition device in a conventional pallet to equip container carriers such as pallets with information recognition capability. The information is attached to the pallet container. The information may be captured quickly in the distribution process to enhance operation efficiency and management control in the transportation and distribution.

Abstract: A pallet apparatus equipped with a radio frequency recognition module includes a radio recognition device in a conventional pallet to equip container carriers such as pallets with information recognition capability. The information is attached to the pallet container. The information may be captured quickly in the distribution process to enhance operation efficiency and management control in the transportation and distribution.