Patent ID: 7255274

Claim:
A data exchanging system, comprising: a first IC chip that is built into a first portable instrument; a second IC chip that is different from the first IC chip, and is built into a second portable instrument; and a reader for exchanging data with the first IC chip and with the second IC chip, respectively; wherein the first IC chip has first receiving means for receiving an electric wave from the reader, power generating means for performing self-energizing power generation using the electric wave received, first memory means for storing data, and first radio output means for receiving a power source voltage from the power generating means to output the data stored in the first memory means to the reader by radio, the second IC chip has second receiving means for receiving data from the reader, and second memory means for storing a data group, and the reader has identifying means for identifying whether an IC chip with which data is exchanged is the first IC chip or the second IC chip, reader-side receiving means for receiving data sent by radio from the first IC chip when an IC chip with which data is exchanged is the first IC chip, reader-side memory means for storing the data, and reader-side radio output means for outputting the data stored in the reader-side memory means to the second IC chip by radio when the IC chip with which data is exchanged is the second IC chip; wherein the first portable instrument comprises detection means and sends data detected by the detection means to the reader by radio, and the second portable instrument is connected to a computer in a wired or wireless manner and sends the data sent from the reader to the computer by radio; and wherein the first portable instrument comprises a temperature detector for measuring a patient's temperature and sends measured temperature data to the reader by radio, the reader receives the measured temperature data and stores the measured temperature data in the reader-side memory means, and the second portable instrument outputs the measured temperature data sent by radio from the reader to the computer.