| 摘要 |
A presentation instrument is described which includes an input sensor, a memory unit, and an antenna configured to wirelessly transmit and receive data. The antenna is configured to receive a request for data stored on the memory unit, and may also be configured to induce a voltage from a magnetic field to power the presentation instrument. The input sensor may control whether the presentation instrument can be so powered from the magnetic field. Alternatively, input from the input sensor may otherwise control the functionality of the presentation instrument. By way of example, an input received by the input sensor may be transmitted in addition to the requested data. Additionally, a system is described to process the requested data and additional input data, in accordance with a rules data store. |
