| 摘要 |
A data interchange device exchanges data objects with a computing device using wireless data transmission, and has a CPU; a memory, a trigger device, a wireless data transmitter and receiver, and a user signalling device. Upon activation, the CPU causes the user signalling device to indicate that the data interchange device is operative, and wireless data transmission with a computing device occurs, so that a data object is retrieved from or stored in memory. Upon completion of wireless data transmission, or after passage of a predetermined period of wireless data transmission inactivity, the CPU causes the user signalling device to turn off. Typically, there is also at least one hard-wired input port for receiving data objects from an external computing device for storage in the memory. Use of the data interchange device is one-on-one by a person who must be in close proximity to the device.
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