Optical smart card system, apparatus and method

• US 6,604,685 B1
• Filed: 07/02/2001
• Issued: 08/12/2003
• Est. Priority Date: 07/02/2001
• Status: Expired due to Term

• Current Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Original Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Inventors: Norton, Stephen P.
• Primary Examiner(s): Lee, Michael G.
• Assistant Examiner(s): TAYLOR, APRIL ALICIA
• Application Number:
  US09/897,234
• Time in Patent Office: 771 Days
• Field of Search: 235/492, 235/454, 235/487
• US Class Current: 235/492
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 19/0728 the arrangement being an optical or sound-based communication interface
• CPC Class Codes: G06K 19/145 at least one of the further markings being adapted for galvanic or wireless sensing, e.g. an RFID tag with both a wireless and an optical interface or memory, or a contact type smart card with ISO 7816 contacts and an optical interface or memory
• CPC Class Codes: G06K 7/1097 Optical sensing of electronic memory record carriers, such as interrogation of RFIDs with an additional optical interface

Abstract

Disclosed are an optical smart card and an optical smart card reader, each including an optical interface for communicating information therebetween by way of an optical communication link.

Claims

1. A smart card, comprising:

an optical transceiver for transmitting a first optical signal and receiving a second optical signal;

an electronic processor in communication with the optical transceiver, wherein the electronic processor is for processing the first and second optical signals;

an antenna for receiving an electromagnetic signal; and

a power converter coupled to the electronic processor, the optical transceiver, and the antenna, wherein the power converter is for converting the electromagnetic signal to a voltage for powering the electronic processor and the optical transceiver, and

wherein the optical transceiver initiates an optical transmission upon the antenna receiving the electromagnetic signal.

2. The smart card according to claim 1, wherein the antenna is coupled to the electronic processor.

3. The smart card according to claim 1, wherein the voltage ranges from about 3 volts to 6 volts.

4. The smart card according to claim 1, wherein the electronic processor further comprises a:

CPU;

a memory circuit, and

an input/output controller.

5. The smart card according to claim 4, wherein the memory circuit is selected from the group consisting of a ROM, NVM and RAM.

6. A smart card reader, comprising:

a computer screen;

an optical transceiver forming an integral portion of the computer screen, wherein the optical transceiver is for receiving a first signal from an optical smart card and transmitting a second signal to the optical smart card;

an electronic logic circuit for processing the first and second signals in communication with the optical transceiver; and

an antenna for transmitting an electromagnetic signal to the optical smart card, wherein the optical smart card upon receiving the electromagnetic signal initiates optical transmission between the optical smart card and the card reader.

7. The smart card reader according to claim 6, further comprising an oscillator coupled to the antenna, wherein the oscillator is for generating a third signal at a first frequency, and wherein the oscillator is coupled to a source of electrical power.

8. The smart card reader according to claim 7, wherein the source of electrical power is a direct current source.

9. The smart card reader according to claim 7, wherein the source of electrical power is an alternating current source.

10. The smart card reader according to claim 7, further comprising an amplifier in communication with the oscillator.

11. The smart card reader of claim 10, wherein the antenna is in communication with one of the oscillator and the amplifier.

12. An optical smart card system, comprising:

an optical smart card including a first optical transceiver in communication with an electronic processor and a first antenna for receiving an electromagnetic signal; and

an optical smart card reader comprising;

a computer screen;

a second optical transceiver forming an integral portion of the computer screen, wherein the second optical transceiver is for receiving a first signal from the first optical transceiver and transmitting a second signal to the first optical transceiver;

an electronic logic circuit for processing the first and second signals in communication with the second optical transceiver; and

a second antenna for transmitting the electromagnetic signal to the first antenna of the optical smart card, wherein the optical smart card upon receiving the electromagnetic signal initiates optical transmission between the first optical transceiver and the second optical transceiver.

13. The optical smart card system according to claim 12, wherein the optical smart card further comprises a first antenna coupled to the electronic processor.

14. The optical smart card system according to claim 13, further comprising an external power supply for transmitting electromagnetic signals to the optical smart card for energizing the optical smart card.

15. The optical smart card system according to claim 12, wherein the optical smart card reader further comprises a second antenna.

16. The optical smart card system according to claim 15, wherein the optical smart card reader transmits an electromagnetic signal to the optical smart card for energizing the optical smart card and initiating an optical communication transaction.

17. A smart card system, comprising:

an optical smart card including;

an first optical transceiver for transmitting a first optical signal and receiving a second optical signal;

an electronic processor in communication with the first optical transceiver, wherein the electronic processor is for processing the first and second optical signals;

an antenna coupled to a power converter, wherein the antenna is for receiving an electromagnetic power signal; and

a power converter coupled to the electronic processor and the first optical transceiver, wherein the power converter is for converting the electromagnetic signal to a voltage for powering the electronic processor and the first optical transceiver; and

a portable power supply remotely disposed from the smart card, wherein the portable power supply is for wirelessly communicating the electromagnetic power signal to the optical smart card;

wherein the electromagnetic power signal is radiated from the portable power supply to the smart card; and

wherein the first optical transceiver initiates an optical transmission upon receiving the electromagnetic power signal from the portable power supply.

18. The system of claim 17, further comprising:

an optical smart card reader remotely disposed from the smart card and the portable power supply, wherein the smart card reader is for communicating information with the smart card, wherein the first optical transceiver upon receiving the electromagnetic signal initiates an optical transmission with the optical smart card reader.

19. The system of claim 18, wherein the optical smart card reader includes a computer screen and a second optical transceiver forming an integral portion of the computer screen.