| 摘要 |
<p>PURPOSE:To efficiently and smoothly input keys by discriminating a command to change the screen independently of the releasing state of a key at the time of instructing the screen change by this key inputted from a transparent touch panel. CONSTITUTION:Contents of the command from a host device 33 are decided by a command processing means 26. If a key on a transparent touch panel 12 is depressed at the time of deciding that the picture change is commanded, the command processing means 26 generates releasing information of the key and sends this information to the host device 33 through a sending means 24 together with the key number of execute the screen change. Sending of the releasing information of this key number is stored in an item key information storage means 27. If any key is not depressed then, the screen change is immediately executed. Thereafter, a touch panel key detecting means 21 checks the stored information of the storage means 27 in the case of detecting the release of the depressed key, and the releasing information of the key is not sent to the host device 33 if this information is already sent.</p> |
