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US4675746A
Expired / Lapsed
US
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System for forming picture, alphanumeric and micrographic images on the surface of a plastic card
Assignee: Entrust Corp
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Filing: 1986-06-30
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Granted: 1987-06-23
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Expires: 2006-06-30
Abstract
Abstract A system for forming an image on the outer surface of a plastic card and for correlating image data with corresponding alphanumeric data, comprises a data acquisition subsystem shown in FIG. 1, an encoder shown in FIG. 2, an exposure station for scanning an electrophotographic medium in accordance with digital image data generated by the data acquisition system, and a toning station for toning the electrophotographic medium to produce a toner image. The encoder forms identifying information corresponding to the alphanumeric data on the card and provides the encoded card to an image transfer station. At the image transfer station, the toner image on the electrophotographic medium is transferred to a portion of the card through heat and pressure. A protective layer is placed over the fused toner image.
Inventors
- 👤 Kenneth H. Tetrick
- 👤 Randall L. McCoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:59
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/3871; B; B42; B42D; B42D25/00; B42D25/30; B42D25/309; B42D25/40; B42D25/405; B42D25/415; B42D25/42; G; G06; G06K; G06K19/00; G06K19/06; G06K19/06009; G06K19/06046; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/347; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253; G07F; G07F7/00; G07F7/08; G07F7/12; B42D2035/08; B42D2035/44; B42D2035/50; B42D25/48; B42D25/485
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
87 words
A method of applying an array of macrographic and micrographic characters to a surface comprising the steps of: (a) generating a digital image from the array of data wherein the macrographic data is represented by a plurality of pixels to define a varying grey scale image and the micrographic data includes alphanumeric characters in one pixel; (b) modifying the digital image by replacing at least one pixel in the digital image with micrographic data pixels; and (c) applying the digital image in visible form to the surface.
Claim 2
Independent Claim
87 words
A method of applying an array of macrographic and micrographic characters to a surface comprising the steps of: (a) generating a digital image from the array of data wherein the macrographic data is represented by a plurality of pixels to define a varying grey scale image and the micrographic data includes alphanumeric characters in one pixel; (b) modifying the digital image by replacing at least one pixel in the digital image with micrographic data pixels; and (c) applying the digital image in visible form to the surface.
Claim 3
Dependent Claim
20 words
The invention of claim 1 wherein the micrographic character embedded in a particular macrographic character corresponds to that macrographic character.
Claim 4
Dependent Claim
23 words
The invention of claim 1 wherein the entirety of macrographic alphanumeric characters are reproduced in micrographic and both macrographic form on the card.
Claim 5
Dependent Claim
28 words
The invention of claim 1 wherein the macrographic data includes a picture printed on the card having certain pixels wherein the picture data is replaced with micrographic characters.
Claim 6
Dependent Claim
16 words
The invention of claim 4 wherein the micrographic security data corresponds to the alphanumeric macrographic data.
Claim 7
Independent Claim
206 words
A system for applying data to a card, comprising: (a) an electrophotographic medium; (b) a light source for generating a coherent light beam; (c) electronic means for receiving and storing a digital image signal in a plurality of memory locations corresponding to pixels of a macrographic digital image; (d) means for altering the digital image signal by replacing digital image data from selected pixels thereof with pixels representative of micrographic data to form a modified digital image signal having micrographic data embedded within a macrographic data image; (e) modulation means operatively coupled to the electronic means and positioned in the path of the coherent light beam for modulating the coherent light beam in accordance with the modified digital image signal; (f) scanning means for scanning the modulated coherent light beam across the electrophotographic medium to selectively expose the electrophotographic medium and form a latent image thereon in conformance with the modified digital image; (g) toner applying means for applying a toner image on the electrophotographic medium; and (h) transfer means for transferring the toner image to a predetermined portion of the card through heat and pressure thereby forming a visible data array thereon having micrographic data pixels embedded at predetermined locations of the macrographic digital image.
Claim 8
Independent Claim
206 words
A system for applying data to a card, comprising: (a) an electrophotographic medium; (b) a light source for generating a coherent light beam; (c) electronic means for receiving and storing a digital image signal in a plurality of memory locations corresponding to pixels of a macrographic digital image; (d) means for altering the digital image signal by replacing digital image data from selected pixels thereof with pixels representative of micrographic data to form a modified digital image signal having micrographic data embedded within a macrographic data image; (e) modulation means operatively coupled to the electronic means and positioned in the path of the coherent light beam for modulating the coherent light beam in accordance with the modified digital image signal; (f) scanning means for scanning the modulated coherent light beam across the electrophotographic medium to selectively expose the electrophotographic medium and form a latent image thereon in conformance with the modified digital image; (g) toner applying means for applying a toner image on the electrophotographic medium; and (h) transfer means for transferring the toner image to a predetermined portion of the card through heat and pressure thereby forming a visible data array thereon having micrographic data pixels embedded at predetermined locations of the macrographic digital image.
Claim 9
Dependent Claim
22 words
The invention of claim 6 wherein the macrographic data is a photographic image and the micrographic data is comprised of alphanumeric characters.
Claim 10
Dependent Claim
18 words
The invention of claim 7 wherein there is one alphanumeric character in each pixel of the micrographic data.
Claim 11
Dependent Claim
27 words
The invention of claim 6 wherein the macrographic data comprises alphanumeric characters comprised of a plurality of pixels and the micrographic data is comprised of alphanumeric characters.
Claim 12
Dependent Claim
17 words
The invention of claim 9 wherein the micrographic data has one alphanumeric character in each micrographic pixel.
Claim 13
Dependent Claim
42 words
The invention of claim 10 wherein one micrographic pixel is embedded in each alphanumeric character of the macrographic data and the alphanumeric character of the pixel of micrographic data bears a predetermined relationship to the alphanumeric character in which it is embedded.
Claim 14
Dependent Claim
26 words
The invention of claim 11 wherein the alphanumeric characters of the macrographic data have embedded therein a pixel of micrographic data containing the same alphanumeric character.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |