JPH01173867U - - Google Patents
Info
- Publication number
- JPH01173867U JPH01173867U JP6167888U JP6167888U JPH01173867U JP H01173867 U JPH01173867 U JP H01173867U JP 6167888 U JP6167888 U JP 6167888U JP 6167888 U JP6167888 U JP 6167888U JP H01173867 U JPH01173867 U JP H01173867U
- Authority
- JP
- Japan
- Prior art keywords
- power source
- control signal
- battery
- built
- signal line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Credit Cards Or The Like (AREA)
Description
第１図はこの考案の一実施例に係るメモリカー
ドの構成を示す図、第２図は従来のメモリカード
の一構成例を示す図である。
１……記憶部、１７……電池、２１……バテラ
ルスイツチ、２３……電源切換部。
FIG. 1 is a diagram showing the configuration of a memory card according to an embodiment of this invention, and FIG. 2 is a diagram showing an example of the configuration of a conventional memory card. 1...Storage unit, 17...Battery, 21...Battery switch, 23...Power switching unit.
Claims (1)
低下すると、電源を内蔵した電池に切換える電源
切換手段と、 電源が外部から供給されている時には外部から
の制御信号の入力路となる制御信号線を導通状態
とし、電源を内蔵した電池とした時には前記制御
信号線を遮断状態にする切換制御手段と を有することを特徴とするメモリカード。[Claims for Utility Model Registration] A power source switching means that switches the power source to a built-in battery when the potential of an externally supplied power source falls below a specified value, and an external control signal when the power source is externally supplied. 1. A memory card comprising switching control means for bringing a control signal line serving as an input path into a conductive state, and for turning off the control signal line when a built-in battery is used as a power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6167888U JPH01173867U (en) | 1988-05-12 | 1988-05-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6167888U JPH01173867U (en) | 1988-05-12 | 1988-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01173867U true JPH01173867U (en) | 1989-12-11 |
Family
ID=31287331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6167888U Pending JPH01173867U (en) | 1988-05-12 | 1988-05-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01173867U (en) |
-
1988
- 1988-05-12 JP JP6167888U patent/JPH01173867U/ja active Pending
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