Chip card and chip card reader

US6112997A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Egbert Jelinek · Sarstedt, DE
• Stefan Goss · Hildesheim, DE

Key dates

• Filing date: Oct 6, 1997
• Grant date: Sep 5, 2000
• Expiry date: Oct 6, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G06K19/07743
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A chip card (1) has reading and/or writing contacts (10, . . . , 17) to provide electrical contact with corresponding fixed countercontacts (20, . . . , 27) of a card reader with a card slot for receiving the chip card (1). The contacts (10, . . . , 17) are formed so that they maintain the electrical contact during an overshot, which occurs particularly when the chip card (1) is inserted into the card slot, and/or during a time required to end a writing operation on removal of the chip card (1) from the card slot, and/or during reciprocation occurring crosswise to the direction of insertion of the chip card (1) into the card reader, especially upon insertion or removal of the chip card (1). The contacts (10, . . . , 17) are formed so that, when the countercontacts (20, . . . , 27) sweep over the contacts (10, . . . , 17), no short circuit occurs between individual contacts (10, . . . , 17). A card reader for the chip card has a card slot for receiving the chip card (1) and countercontacts (20, . . . , 27) for mechanical cooperation with the reading and/or writing contacts (10, . . . , 17) on the chip card and for electrically conductive connection of a computer to the contacts (10,…