发明授权
- 专利标题： Power supply device for a multifunction apparatus having a plurality of power sources
- 专利标题（中）： 具有多个电源的多功能设备的电源装置
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申请号： US136447申请日： 1980-04-02
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公开(公告)号： US4345286A公开(公告)日： 1982-08-17
- 发明人: Katsumi Kanayama , Kenzi Furuta , Kazuyasu Motoyama
- 申请人： Katsumi Kanayama , Kenzi Furuta , Kazuyasu Motoyama
- 申请人地址： JPX Tokyo
- 专利权人： Olympus Optical Co., Ltd.
- 当前专利权人： Olympus Optical Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54/43291 19790410
- 主分类号： G04G19/00
- IPC分类号： G04G19/00 ; G11B15/03 ; G11B27/11 ; G11B27/34 ; G11B33/00 ; G11B33/10 ; G11B33/12 ; G11B23/00
摘要：
A tape recorder with electronic counter having a counter portion (14) furnished with power from a first battery (18) and serving to display the extent of tape drive, a tape recorder portion (20) furnished with power from a second battery (22) and switched from one operation mode over to another according to the count value in the counter portion (14) and a switch (17) for permitting the power supply to the counter portion (14) from the second battery (22) when the counter portion (14) becomes inoperative with the exhaustion of the first battery (18).
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