| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to use an operating means for inputting information to a computer irrespective of the sequence of starting of the device in a picture display device. SOLUTION: Sources PCV and GND are supplied to a mouse connector 228 via a connecting cable 12 from a PC 10. These sources PCV, GND are defined as sources to operate each block forming a mouse function part 220, i.e., an IR light receiving part 222, selector 224 and mouse I/F controller 226. Thus, source is supplied to each configuration part of the mouse function part 220 at the almost same time as the starting of the PC 10, and they are to be operable. At this time, the PC 10 checks a prescribed signal which is included in a mouse data signal MSDATA and confirms whether or not to be in a mouse operable state. Thus, the mouse function is used as well as the PC 10 is started irrespective of that the picture display device is operated or not.</p> |
