| 摘要 |
A communication device capable of selectively communicating control signals to a computer and transmitting a narrow beam of light. A cordless communication device is provided having operational buttons and a port. The communication device may function as a computer mouse, a trackball apparatus, or a touch pad apparatus. Operational signals are generated by a signal generator in response to activation of the operational buttons or movement of a mouse ball. The communication device further includes a light generating apparatus in communication with the port which generates the narrow beam of light. A selectively operable switch is provided for selectively transmitting the operational signals or the beam of light. The communication device includes an independent power supply as well as a power level monitor and switching apparatus. Preferably, the beam of light is a laser beam or other focused beam of light. |
