发明名称 Camera with battery checkup function
摘要 A camera with a battery checking function is provided with a timer for generating an output signal at predetermined time intervals, a memory for storing a calculated time value, an external switch for generating an activating signal for activating the camera, and a microcomputer for activating the camera in response to the activating signal generated by the external switch, for updating the content of the memory in accordance with the output of the timer at first time intervals when the camera is activated, for placing the camera in a standby mode when the activating signal has not been detected for a predetermined period of time, and for updating the content of the memory in accordance with the output of the timer means at second time intervals, longer than the first time intervals, when the camera is in a standby mode. A voltage detector detects the voltage of a battery at third time intervals when the camera is activated and detects the voltage of the battery at fourth time intervals when the camera is in the standby mode. A display indicates the charge level of the battery.
申请公布号 US5732295(A) 申请公布日期 1998.03.24
申请号 US19960639377 申请日期 1996.04.26
申请人 SEIKO PRECISION INC. 发明人 SEKI, YOICHI;SAITO, HIROYUKI;MIYATA, TERUYO;KANEOKA, TETSUMI
分类号 G03B7/26;G03B17/18;G03B17/24;(IPC1-7):G03B7/26;G01N27/42 主分类号 G03B7/26
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