| 摘要 |
<p>A receiver (14) receives at least one message containing a visual message. A display device (16), in communication with the receiver (14), displays the visual message of a selected one of the at least one message. A first housing (20) houses the receiver and the display device to form a self-contained, viable receiver unit (10). A camera (22) captures at least one image. A transmitter (24) transmits a signal based upon the at least one image captured by the camera (22). A second housing (26) houses the camera (22) and the transmitter (24) to form a self-contained, viable transmitter unit (12). The second housing (26) is selectively attachable and detachable from the first housing (20). As a result, the transmitter unit (12) may be selectively attached to the receiver unit (10) and detached from the receiver unit (10).</p> |
