| 摘要 |
<p>In an electronic article surveillance system, a low-power supply is used to power the system during ordinary search-and-detect operation, and the increased power needed to transmit high-power signals for deactivating the tag circuit is produced by charging up a rechargable storage device, such as a capacitor or rechargable battery, in the intervals between deactivations and using the charged-up storage device to provide the high supply power needed during deactivation, to generate the deactivation transmission.</p> |
