Horology: time measuring systems or devices – Power supply details – Electrical
Patent
1996-08-09
1998-07-28
Roskoski, Bernard
Horology: time measuring systems or devices
Power supply details
Electrical
368203, G04B 100
Patent
active
057870543
ABSTRACT:
To achieve a multiple function portable electronic device providing improved ease of use by enabling the operation of selected functions to be sustained even while replacing the battery, switch end 190 is pushed out from battery housing hole 509 to one side by battery 59 when battery 59 is loaded, and is pushed by spring member 197 into battery housing hole 509 inside watch case 11 of the wristwatch-type pulse wave measuring device when battery 59 is removed from battery housing hole 509 after removing the battery cover. Switch end 190 thus automatically inputs the terminal voltage of a backup capacitance element from signal input terminal 510 to the IC. This causes the wristwatch-type pulse wave measuring device to switch from the normal operating mode to an energy conservation mode. Switch end 190 is a conductive plate 19 of which at least one part is a spring member with a chamfer 195 contacting side edge 591 of battery 59, and is used to establish an electrical connection between battery 59 and the capacitance element.
REFERENCES:
patent: 4182110 (1980-01-01), Kamiwaki et al.
patent: 4450843 (1984-05-01), Barney et al.
patent: 4733265 (1988-03-01), Haraguchi et al.
patent: 5220520 (1993-06-01), Kessoku
patent: 5328781 (1994-07-01), Mikake
patent: 5347163 (1994-09-01), Yoshimura
patent: 5375246 (1994-12-01), Kimura et al.
Nakamura Chiaki
Yasukawa Naoaki
Janofsky Eric B.
Roskoski Bernard
Seiko Epson Corporation
Seiko Instruments Inc.
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