JPS641979U - - Google Patents
Info
- Publication number
- JPS641979U JPS641979U JP9516987U JP9516987U JPS641979U JP S641979 U JPS641979 U JP S641979U JP 9516987 U JP9516987 U JP 9516987U JP 9516987 U JP9516987 U JP 9516987U JP S641979 U JPS641979 U JP S641979U
- Authority
- JP
- Japan
- Prior art keywords
- battery
- volatile memory
- voltage
- detected voltage
- card
- 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
Classifications
-
- Y02E60/12—
Landscapes
- Credit Cards Or The Like (AREA)
- Primary Cells (AREA)
Description
第１図は本考案を具体化した一実施例の電池内
蔵ＩＣカードの主要電気回路図、第２図は上記電
池内蔵ＩＣカードの外観平面図である。
図中、１２はＲＡＭ、１６はバツクアツプ可能
時間の記載、Ｂは電池、ＺＤ１乃至ＺＤ５はツエ
ナーダイオード、ＬＥＤ１乃至ＬＥＤ５は発光ダ
イオードである。
FIG. 1 is a main electrical circuit diagram of a battery built-in IC card according to an embodiment of the present invention, and FIG. 2 is an external plan view of the battery built-in IC card. In the figure, 12 is a RAM, 16 is a description of the backup available time, B is a battery, ZD1 to ZD5 are Zener diodes, and LED1 to LED5 are light emitting diodes.
Claims (1)
ツプする電池と、 その電池の電圧値を検出する電圧検出手段と、 前記検出電圧に対応して可変表示可能であり、
その検出電圧を前記電池により揮発性メモリをバ
ツクアツプ可能な時間値に変換して表示する表示
手段と を備えたことを特徴とする電池内蔵ＩＣカード。[Claims for Utility Model Registration] A volatile memory, a battery for backing up the contents stored in the volatile memory, a voltage detection means for detecting the voltage value of the battery, and a variable display according to the detected voltage. It is possible and
An IC card with a built-in battery, comprising display means for converting the detected voltage into a time value that can be backed up from volatile memory using the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9516987U JPS641979U (en) | 1987-06-19 | 1987-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9516987U JPS641979U (en) | 1987-06-19 | 1987-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS641979U true JPS641979U (en) | 1989-01-09 |
Family
ID=30959414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9516987U Pending JPS641979U (en) | 1987-06-19 | 1987-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS641979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0430285A (en) * | 1990-05-25 | 1992-02-03 | Hitachi Ltd | Memory card |
-
1987
- 1987-06-19 JP JP9516987U patent/JPS641979U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0430285A (en) * | 1990-05-25 | 1992-02-03 | Hitachi Ltd | Memory card |
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