| 摘要 |
<p>PURPOSE:To reduce probability that reception data from a device is lost, by preliminarily limiting the number of processing requests to be queued and substituting the processing request queued at the bottom of a queue means with a processing request if this processing request comes beyond the limit. CONSTITUTION:When receiving an interrupt report, a control part 3 interrupts the work performed till then and sends the contacting position of an electronic pen 6 to a queue means 5. The number of processing requests to be queued in the queue means 5 is preliminarily limited, and it is judged whether the number of processing requests queued there at present is larger than this limit number (n) or not, and processing requests are successively queued in the queue means 5. If the number of processing requests queued there reaches the limit number (n), the processing request queued at the bottom of the queue means 5 is substituted with a new processing request. An execution management part 4 executes coordinate analysis and required processings for n-number of processing requests in the queue means 5 in order from the top. Thus, data from various input/output devices are efficiently processed in real time.</p> |
