Apparatus for reading electronic memory cards

• US 4,675,516 A
• Filed: 10/25/1984
• Issued: 06/23/1987
• Est. Priority Date: 10/27/1983
• Status: Expired due to Fees

• Current Assignee: Flonic SA
• Original Assignee: Flonic SA
• Inventors: Guion, Christian
• Primary Examiner(s): Pitts, Harold I.
• Application Number:
  US06/664,716
• Time in Patent Office: 971 Days
• Field of Search: 235/441, 235/485, 235/444, 235/492
• US Class Current: 235/441
• CPC Class Codes: G06K 7/0021 for reading/sensing record carriers having surface contacts
• CPC Class Codes: G06K 7/0069 including means for detecting correct insertion of the card, e.g. end detection switches notifying that the card has been inserted completely and correctly

Abstract

A card reader for electronic memory cards of the type which include a integrated circuit and integral electrical contact pads. The card reader includes a slot for introduction of the card. Within the slot are a series of contact elements for supplying power and information signals to the contact pads on the memory card. A card position detector, e.g. a microswitch, detects when the card is in the correct position, i.e. when the contact elements are contacting the electric contact pads of the memory card. When the card is so positioned, electric power and information signals are applied to the contact elements and then to the integrated circuit of the memory card via the electric contact pads.

Claims

1. A reader for electronic memory cards of the type including an integrated circuit and electric contact pads, comprising:

a card introduction slot;

electrical power means for supplying electrical power to said integrated circuit;

an information treatment circuit for delivering information signals to said integrated circuit;

contact elements disposed in said introduction slot;

detector means located within said introduction slot for detecting when said card is in a predetermined position such that each one of said contact elements is in physical contact with a corresponding electric contact pad; and

control means responsive to said detector means for controlling said electrical power means and said information treatment circuit and for applying said electrical power and said information signals to said contact elements only when said detector means detects that said card is in said predetermined position.

2. Apparatus as in claim 1, wherein the detector means comprises an electrical contactor delivering an electrical detection signal when the rear edge of a card touches the contactor, and wherein the detection signal activates the information treatment circuit and the electrical power means.

3. Apparatus according to claim 1, wherein the connector means includes a plurality of interruptors mounted between at least some outputs of the information treatment circuit and the electrical power means and the corresponding electrical contact elements and responsive to the detector means to apply electrical power to the contact elements only when a card is in said predetermined position.

4. Apparatus as in claim 1, wherein the electrical contact elements comprise a plurality of flexible conductive leaves fixed on an isolating partition, a first end of each leaf protruding into the introduction slot, a second end of each leaf being electrically connected to a conductive strip disposed on a face of the isolating support.

5. Apparatus as in claim 1, wherein the detector means detects if the card is in a position within a predetermined range of positions.