| 摘要 |
The present invention is directed to a power source for use in electronic articles to assist in the location of misplaced articles, and to a method for enabling a battery-operated electronic apparatus to recognize a desired actuation sound used by a lost article detector unit in deciding whether to activate a locating signal. The power source includes a power cell for supplying electrical energy to the electronic article, and a lost article detector module mounted to the power cell. The lost article detector module includes an input transducer that generates an internal signal in response to an audible sound and a locator signal generator that generates a locator signal in response to detection by the detector module of a desired actuating frequency of the audible sound.
|
