Battery type electronic calculator

Abstract

Abstract PURPOSE:To avoid an inadvertent initialization of an arithmetic device in its normal use mode, by initializing the arithmetic device only when the internal state of an arithmetic processor is unstable during replacement of batteries. CONSTITUTION:When a cover 12 is slid for replacement of batteries, a contact bar 5a connected to a minus pole current supply line 6 conducts together with a switching electrode 8a of an initialization signal supply line 8. Then the minus pole current, i.e., the initialization signal is applied to the reset terminal of an arithmetic device. Thus the arithmetic device is initialized and set under a fixed state to discontinue the function of a computer. When the cover 12 is closed after replacement of batteries, the conduction is cut off for the bar 5a and the electrode 8a. Thus the initialization is released.

Inventors

• 👤 Masahiro Iwaki
• 👤 岩木　雅汎
• 👤 Hiroshi Yahiro
• 👤 八尋　博司
• 👤 Junji Kobayashi
• 👤 小林　準治
• 👤 Hidenori Mimura
• 👤 英紀 三村
• 👤 Hiroshi Nomura
• 👤 宏 野村
• 👤 Yasuo Shimizu
• 👤 康雄 清水

Bibliographic Details