| 摘要 |
<p>A novelty device, which may be portable and connected to an article of clothing, includes an antenna that receives an operating signal carrying an activation command. A receiver the within novelty device is coupled to the antenna and demodulates the modulated operating signal to produce an operating signal, which in turn, is decoded by a decoder to detect the presence or absence of the activation command. An operator-controlled signal source sends an activation command to a transmitting unit, which in turn, modulates the activation command to provide a modulated operating signal to one or more novelty devices via an over-the-air channel. When the decoder detects the presence of the activation command, the decoder operates a switch to activate an indicator, which may produce lights, emit sounds, or perform some mechanical action or any other visual or audio effect. To activate the novelty device, in this manner, a plurality of remotely activated novelty devices may be simultaneously activated before, during, or after an occurrence of an event or an activity by a centralized operator, such as an announcer at a sporting event, someone watching the sporting event via television, a computer, etc., to produce an interesting effect. The indicators may be deactivated after a specific period of time, or when the decoders detect the absence of an activation command or the presence of an activation command to deactivate the novelty devices.</p> |
