JPS6189964U - - Google Patents
Info
- Publication number
- JPS6189964U JPS6189964U JP17641784U JP17641784U JPS6189964U JP S6189964 U JPS6189964 U JP S6189964U JP 17641784 U JP17641784 U JP 17641784U JP 17641784 U JP17641784 U JP 17641784U JP S6189964 U JPS6189964 U JP S6189964U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- loop
- card
- loop current
- contacts
- 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
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Credit Cards Or The Like (AREA)
- Keying Circuit Devices (AREA)
Description
第１図は本考案の実施例に使用するＩＣカード
のブロツク図、第２図は同ＩＣカードの外観図、
第３図は本考案を適用したＩＣカードリーダのブ
ロツク図、第４図は同ＩＣカードリーダの接点異
常検出部の概略構成を示す回路図、第５図は同Ｉ
Ｃカードリーダの接点状態のチエツク動作を示す
フローチヤートである。
５ａ〜５ｆ……ＩＣカードの接点。
Fig. 1 is a block diagram of an IC card used in an embodiment of the present invention, Fig. 2 is an external view of the IC card,
FIG. 3 is a block diagram of an IC card reader to which the present invention is applied, FIG. 4 is a circuit diagram showing a schematic configuration of a contact abnormality detection section of the IC card reader, and FIG.
7 is a flowchart showing the operation of checking the contact status of the C card reader. 5a to 5f...IC card contacts.
Claims (1)
のＩＣカードの接点にループ用接点を設けるとと
もに各接点を並列に接続し、前記ループ用接点と
他の接点間にループ電流を供給するループ電流供
給手段と、前記ループ電流を流したときの接点電
圧の変化により接点異常を検出知する検知手段と
を有してなる、ＩＣカードの接点異常検知装置。 Loop current supply means that provides a loop contact at a contact of an IC card for exchanging data with an IC card reader, connects each contact in parallel, and supplies a loop current between the loop contact and other contacts; A contact abnormality detection device for an IC card, comprising a detection means for detecting a contact abnormality based on a change in contact voltage when the loop current is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17641784U JPS6189964U (en) | 1984-11-19 | 1984-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17641784U JPS6189964U (en) | 1984-11-19 | 1984-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6189964U true JPS6189964U (en) | 1986-06-11 |
Family
ID=30734014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17641784U Pending JPS6189964U (en) | 1984-11-19 | 1984-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6189964U (en) |
-
1984
- 1984-11-19 JP JP17641784U patent/JPS6189964U/ja active Pending
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