| 摘要 |
<p>An alphanumeric keyboard has a plurality of alphanumeric keys and includes at least one built-in microphone. The at least one microphone is controlled by a processor such that the at least one microphone is able to be operated in an automatic mode. When in the automatic mode and an alphanumeric key is activated, the at least one microphone is deactivated for a predetermined period. The predetermined period is controlled by a timer. Also disclosed is the inclusion in the keyboard of one or more of: echo cancellation; a card reader; a wireless data receiver; and a contactless induction charger.</p> |
