US5789733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smart card with contactless optical interface
Assignee: NXP USA Inc
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Filing: 1996-09-20
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Granted: 1998-08-04
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Expires: 2016-09-20
Abstract
Abstract An optical smart card (10) including a microchip (14) having information stored thereon, an optical holographic sensor pad (16) capable of detecting and collecting light beams emitted from a remote reader/transmitter (52), a light source (18) capable of emitting dataelectronic information contained on the microchip (14) back to the remote reader/transmitter (52) and electronics (20) connected to the sensor pad (16), the light source (18) and the microchip (14).
Inventors
- 👤 Karen E. Jachimowicz
- 👤 Scott R. Novis
- 👤 Dennis Barry
- 👤 Wenbin Jiang
- 👤 Michael S. Lebby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:24
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/0723; G06K19/0728; G06K19/077; G06K19/07749; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/1097
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
155 words
A smart card comprising: a microchip embedded within the smart card, having a data input terminal and a data output terminal, and capable of storing dataelectronic information thereon; a sensor pad, including an optical hologram embedded within the smart card, capable of collecting and detecting coherent light beams and dataelectronic information submitted by a remote reader/transmitter device; a light source embedded within the smart card, capable of transmitting responsive data therebetween the smart card and the remote reader/transmitter device; and electronics mounted in the smart card and connected to the sensor pad for receiving the coherent light beams and the dataelectronic information from the remote reader/transmitter device, the electronics further connected to the data input terminal and data output terminal of the microchip for transmitting and receiving the dataelectronic information, and further connected to the light source for supplying data thereto the remote reader/transmitter device in response to the dataelectronic information stored thereon the microchip.
Claim 2
Dependent Claim
155 words
A smart card comprising: a microchip embedded within the smart card, having a data input terminal and a data output terminal, and capable of storing dataelectronic information thereon; a sensor pad, including an optical hologram embedded within the smart card, capable of collecting and detecting coherent light beams and dataelectronic information submitted by a remote reader/transmitter device; a light source embedded within the smart card, capable of transmitting responsive data therebetween the smart card and the remote reader/transmitter device; and electronics mounted in the smart card and connected to the sensor pad for receiving the coherent light beams and the dataelectronic information from the remote reader/transmitter device, the electronics further connected to the data input terminal and data output terminal of the microchip for transmitting and receiving the dataelectronic information, and further connected to the light source for supplying data thereto the remote reader/transmitter device in response to the dataelectronic information stored thereon the microchip.
Claim 3
Dependent Claim
22 words
A smart card as claimed in claim 1 wherein the light source is at least one vertical cavity surface emitting laser (VCSEL).
Claim 4
Dependent Claim
34 words
A smart card as claimed in claim 2 wherein the at least one vertical cavity surface emitting laser (VCSEL) is fabricated to emit infra-red light in a range of 750 nm to 2000 nm.
Claim 5
Dependent Claim
34 words
A smart card as claimed in claim 2 wherein the at least one vertical cavity surface emitting laser (VCSEL) is fabricated to emit visible light in a range of 350 nm to 750 nm.
Claim 6
Dependent Claim
32 words
A smart card as claimed in claim 1 further including at least one of an alphanumeric input device and a biometric input device connected to the data input terminal of the microchip.
Claim 7
Dependent Claim
23 words
A smart card as claimed in claim 1 wherein the electronics includes a central processing unit (CPU) and a random access memory (RAM).
Claim 8
Dependent Claim
163 words
An optical smart card comprising: a microchip at least partially embedded within the smart card, having a data input terminal and a data output terminal, and capable of storing dataelectronic information thereon; an optical hologram embedded within the smart card, capable of collecting and detecting coherent light beams and dataelectronic information submitted by a remote reader/transmitter device; a vertical cavity surface emitting laser (VCSEL) embedded within the smart card, capable of transmitting responsive data therebetween the smart card and the remote reader/transmitter device; and electronics mounted in the smart card and connected to the optical hologram for receiving the coherent light beams and the dataelectronic information from the remote reader/transmitter device, the electronics further connected to the data input terminal and data output terminal of the microchip for transmitting and receiving the dataelectronic information, and further connected to the vertical cavity surface emitting laser (VCSEL) for supplying data thereto the remote reader/transmitter device in response to the dataelectronic information stored thereon the microchip.
Claim 9
Dependent Claim
163 words
An optical smart card comprising: a microchip at least partially embedded within the smart card, having a data input terminal and a data output terminal, and capable of storing dataelectronic information thereon; an optical hologram embedded within the smart card, capable of collecting and detecting coherent light beams and dataelectronic information submitted by a remote reader/transmitter device; a vertical cavity surface emitting laser (VCSEL) embedded within the smart card, capable of transmitting responsive data therebetween the smart card and the remote reader/transmitter device; and electronics mounted in the smart card and connected to the optical hologram for receiving the coherent light beams and the dataelectronic information from the remote reader/transmitter device, the electronics further connected to the data input terminal and data output terminal of the microchip for transmitting and receiving the dataelectronic information, and further connected to the vertical cavity surface emitting laser (VCSEL) for supplying data thereto the remote reader/transmitter device in response to the dataelectronic information stored thereon the microchip.
Claim 10
Dependent Claim
26 words
An optical smart card as claimed in claim 7 wherein the vertical cavity surface emitting laser (VCSEL) is fabricated of a plurality of epitaxially grown layers.
Claim 11
Dependent Claim
32 words
An optical smart card as claimed in claim 8 wherein the vertical cavity surface emitting laser (VCSEL) is fabricated to emit visible light in a range of 750 nm to 2000 nm.
Claim 12
Dependent Claim
32 words
An optical smart card as claimed in claim 8 wherein the vertical cavity surface emitting laser (VCSEL) is fabricated to emit infra-red light in a range of 350 nm to 750 nm.
Claim 13
Dependent Claim
23 words
An optical smart card as claimed in claim 8 further including safety features to prevent unauthorized access of information contained on the microchip.
Claim 14
Dependent Claim
24 words
An optical smart card as claimed in claim 8 wherein the electronics includes a central processing unit (CPU) and a random access memory (RAM).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-03 | 2002-02-02 | 2002-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-03 | 2006-02-02 | 2006-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-03 | 2010-02-02 | 2010-08-04 | $7700.00 | Window Closed / Lapsed |