| 摘要 |
PURPOSE: A device for displaying a dialer and a dial number of a cellular phone for car, is provided to confirm and originate a dial number displayed in a driving seat window, by inputting the dial number through a keypad attached to the driving seat. CONSTITUTION: A device for displaying a dialer and a dial number of a cellular phone for car, comprises the five devices as follows. (1)A part reflection board is attached to a driving seat, forms one dot by reflecting and scattering laser beam. A driver simultaneously sees a front visual field and a dial number through the part reflection board. A laser beam projection module comprises 8-laser projection beam part lengthwise and a motor rotating the part to 360-degree. A projection module is rotated to 360-degree every 1/16 second, and projects a dial number from left to right in a projection angle with the part reflection board. A keypad module is attached to a driving seat, receives a dial number, and generates keys of 0-9, star, sharp, clear(removal of one number), send(SND) and END. A cellular phone and interface is operated, as a dial number and send-key inputted by the driver is inputted through a keypad attached to a driving seat, is converted to key definition data of the cellular phone, and is formed with a packet instruction word according to a direct mail(DM) protocol of the cellular phone. An instruction word is transmitted to the cellular phone by a physical RS-232C interface. And a one-chip microcomputer controller simplifies a device by using a one-chip microcomputer, to control a laser beam projection module, a keypad input part and a dial number transmission part of the cellular phone.
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