JPS6429589A - Card lock - Google Patents
Card lockInfo
- Publication number
- JPS6429589A JPS6429589A JP18495487A JP18495487A JPS6429589A JP S6429589 A JPS6429589 A JP S6429589A JP 18495487 A JP18495487 A JP 18495487A JP 18495487 A JP18495487 A JP 18495487A JP S6429589 A JPS6429589 A JP S6429589A
- Authority
- JP
- Japan
- Prior art keywords
- card
- slot
- pulses
- switch
- clock pulses
- 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.)
- Granted
Links
Landscapes
- Lock And Its Accessories (AREA)
Abstract
PURPOSE: To reduce costs by verifying the sufficient insertion of a card into a card reader on the basis of clock pulses and data pulses outputted from the card reader and eliminating the need for a switch for detecting the completion of insertion. CONSTITUTION: A slot 3 into which a magnetic card 2 is inserted is provided at the front surface of a housing 1, a card insertion detecting switch 4 is provided at the entrance of the slot 3, and a magnetic head 5 is provided inside the slot 3. Next, the card 2 is inserted to turn the switch 4 on, and card data is reproduced on the basis of clock pulses and data pulses outputted from the head 5. Then the sufficient insertion of the card 2 is detected by counting the number of the clock pulses only when a signal indicating that the card 4 is in operation is in an ON state and verifying that the number of continuously generated card pulses is equal to a number generated at a normal time or more. Therefore, it is possible to reduce costs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184954A JP2540873B2 (en) | 1987-07-24 | 1987-07-24 | Card lock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184954A JP2540873B2 (en) | 1987-07-24 | 1987-07-24 | Card lock |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6429589A true JPS6429589A (en) | 1989-01-31 |
JP2540873B2 JP2540873B2 (en) | 1996-10-09 |
Family
ID=16162255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62184954A Expired - Lifetime JP2540873B2 (en) | 1987-07-24 | 1987-07-24 | Card lock |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2540873B2 (en) |
-
1987
- 1987-07-24 JP JP62184954A patent/JP2540873B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2540873B2 (en) | 1996-10-09 |
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