JP2010152641A5 - - Google Patents

Claims (9)

An antenna unit that receives electromagnetic waves transmitted from a wireless reader / writer that rewrites data, and power transmission from the electromagnetic waves received by the antenna unit and data communication are written to the memory on a board that has electronic components incorporated into the product. Connection between the microcomputer and a wireless rewriting unit comprising a communication I / F for transmitting information stored in the wireless function unit and the memory to the microcomputer, the wireless function unit performing and a microcomputer for controlling the product A data rewriting system comprising a circuit separation device in a part. 2. The data rewriting system according to claim 1, further comprising means for not writing the data to the memory unless the data sent from the wireless reader / writer is predetermined. When the wireless reader / writer is connected to a network, appropriate data is downloaded from the server to the wireless reader / writer based on the identification information read from the substrate, and written to the memory of the substrate by data communication. The data rewriting system according to claim 1. 2. The board according to claim 1, wherein when the board is connected to a network, when accessed only from a specific wireless reader / writer, the server takes data and automatically rewrites the memory of the board. Data rewriting system. The data rewriting system according to claim 1, wherein when the wireless rewriting unit is powered from a product body, the antenna unit connected from the wireless rewriting unit is energized to extend a communication distance. The data rewriting system according to claim 1, further comprising a plurality of switchable antenna units connected to the wireless rewriting unit, wherein an antenna unit corresponding to a transmission / reception frequency is selected. When the distance from the wireless reader / writer to the substrate is large, the antenna unit is disposed separately from the substrate, or the housing is transmitted through a dedicated I / F provided in the wireless function unit. The data rewriting system according to claim 1, wherein the data rewriting system is used as a data rewriting system. The data rewriting system according to any one of claims 1 to 6, wherein the wireless rewriting unit includes a changeable H / W such as a programmable array, and rewrites data in the memory. A light-receiving unit that receives visible light transmitted from a reader / writer that rewrites data on a board that has electronic components incorporated into the product, and a wireless device that writes to the memory using pulse signals from the visible light received by the light-receiving unit A data rewriting system comprising: a functional unit; and a microcomputer that takes in data from the memory and controls the product.