发明名称 Information processing apparatus
摘要 An information processing apparatus is capable of using more than one type of keyboard with a single keyboard controller without increasing the production cost. In a keyboard matrix, a key scanning line C0 is arranged so that the key scanning line C0 is only connected to any one of key return lines R0 to R7 through a key switch having a key switch number G01. The key switch number G01 is assigned for the key [F1] which is common to keyboards having different key arrangements. When the information processing apparatus is activated, a keyboard initializing program is activated by depressing the [F1] key. As a result, the information processing apparatus identifies the type of the keyboard by detecting a key return line R from which a signal is returned when scanning is made upon the depression of the [F1] key.
申请公布号 US5973675(A) 申请公布日期 1999.10.26
申请号 US19970858760 申请日期 1997.05.19
申请人 SHARP KABUSHIKI KAISHA 发明人 JOTO, TAKUMA;SAKAI, TAKESHI
分类号 G06F3/02;G06F3/023;H03M11/20;(IPC1-7):G09G5/00 主分类号 G06F3/02
代理机构 代理人
主权项
地址