Automobile identification system

• US 4,368,979 A
• Filed: 05/22/1980
• Issued: 01/18/1983
• Est. Priority Date: 05/22/1980
• Status: Expired due to Term

• Current Assignee: Siemens Corp. (Siemens AG)
• Original Assignee: Siemens Corp. (Siemens AG)
• Inventors: Ruell, Hartwig
• Primary Examiner(s): McGraw, Vincent P.
• Application Number:
  US06/152,512
• Time in Patent Office: 971 Days
• Field of Search: 356/71, 356/71 T, 40/201, 40/202, 40/206, 40/210, 116/33, 250/330, 250/332, 250/271, 340/146.3 P
• US Class Current: 356/71
• CPC Class Codes: B60R 13/10 Registration, licensing, or like devices
• CPC Class Codes: G03H 1/0011 for security or authentication holograms on information-bearing cards B42D25/328; testing papers with holograms G07D7/0032
• CPC Class Codes: G03H 1/041 Optical element in the object space affecting the object beam, not otherwise provided for
• CPC Class Codes: G03H 2222/16 Infra Red [IR]
• CPC Class Codes: G06K 1/126 by photographic or thermographic registration recording apparatus for measuring instruments G01D15/00
• CPC Class Codes: G06K 19/16 the marking being a hologram or diffraction grating
• CPC Class Codes: G06K 7/10861 sensing of data fields affixed to objects or articles, e.g. coded labels postal sorting B07C3/14, conveying articles B65G47/48
• CPC Class Codes: G08G 1/017 identifying vehicles G08G1/015, G08G1/054 take precedence
• CPC Class Codes: Y10S 283/901 Concealed data
• CPC Class Codes: Y10S 40/911 Automobile body identification

Abstract

An automobile identification system and a method for producing it are disclosed. The system utilizes a conventional license plate with alpha-numeric characters conveying identifying information perceptible by the unaided eye in combination with a hologram embodying encoded identifying information which cannot be decoded by the unaided eye.

Claims

1. In an identification system for an automobile, said system having an automobile license plate provided with clear information which is readable by the unaided human eye for identification of said automobile, the improvement comprising an additional information carrier which contains a coded information not decodable with the unaided human eye and which can be affixed on said automobile.

2. The automobile identification system according to claim 1, wherein said additional information carrier is applied near said license plate.

3. The automobile identification system according to claim 1, wherein said additional information carrier forms a structural unit with said license plate.

4. The automobile identification system according to claim 1, wherein said coded information of said additional information carrier is identical with said clear information of said license plate.

5. The automobile identification system according to claim 1, wherein said coded information contains besides the information content of said clear information a supplementary information.

6. The automobile identification system according to claim 3, wherein said coded information is distributed over at least the greater part of said license plate.

7. The automobile identification system according to claim 3, wherein a base plate is provided having a surface, said coded information being engraved into said surface and said clear information being stamped into said base plate in alpha-numeric form.

8. The automobile identification system according to claim 3, wherein a base plate is provided having a surface, wherein said clear information is stamped in alpha-numeric form into said base plate, and wherein a thin foil is applied on the surface of said base plate, said foil containing said coded information.

9. The automobile identification system according to claim 2, wherein said additional information carrier is applied on the bumper of said automobile.

10. The automobile identification system according to claim 1, wherein said additional information carrier is provided with a protective coating.

11. A method for producing an automobile identification system comprising the steps of first providing the surface of a base plate at least partially with a coded information, and thereafter providing said base plate with a clear information recognizable by the unaided human eye for identifying said automobile, in such a way that said base plate is an information carrier for said coded information and at the same time is an automobile license plate.

13. The method according to claim 11, wherein providing said surface with said coded information comprises the steps of entering the information to be encoded into a computer, calculating therefrom a hologram according to a given program, and engraving said hologram thereafter into the surface of said base plate.

15. The method according to claim 13 or 14, comprising the step of additionally coding said holographic information on being entered into said surface.

12. A method for producing an automobile identification system comprising the steps of first producing an automobile license plate containing a clear information recognizable by the unaided human eye for identification of the respective automobile, and thereafter applying a thin foil on said license plate, said foil containing a coded information which is not decodable by the unaided human eye.

14. The method according to claim 12, wherein the step of providing said surface with said coded information comprises the steps of entering the information to be encoded into a computer, calculating therefrom a hologram according to a given program, and engraving said hologram into the surface of said foil.

16. An apparatus for producing an automobile identification system comprising, in combination, an engraving tool engraving of a hologram into a surface, a control device for controlling said engraving tool, a Fourier processor for calculating said hologram, said processor being connected to said control device, and an input device for entering an information to be encoded into said processor.

17. A method for the retrieval of a coded information in an automobile identification system, said coded information being stored in an additional information carrier in the form of a hologram, comprising the steps of irradiation said hologram of said additional information carrier with measuring laser light, picking up the reflected light by a sensor, and transforming said light by an image converter into an image that can be evaluated visually.

18. An apparatus for the retrieval of a coded information in an automobile identification system, said coded information being stored in an additional information carrier in the form of a hologram, comprising in combination:

(a) a measuring laser for the irradiation of said hologram with measuring laser light;

(b) an optical system for receiving the reflected measuring laser light;

(c) a system for inverse Fourier transformation; and

(d) a monitor for the visual representation of an image.

19. The apparatus according to claim 18 for an infrared hologram, wherein said measuring laser is an IR laser and said optical system in an IR lens.

20. The apparatus according to claim 18 for an infrared hologram, wherein said optical system includes an image converter, and wherein said system for inverse Fourier transformation includes a Fourier processor.

21. The apparatus according to claim 18, wherein a field glass is coupled with said measuring laser.

22. The apparatus according to claim 19, wherein said measuring laser is a CO₂ laser.

23. In an identification system for an automobile, said system having an automobile license plate provided with clear information which is readable by the unaided human eye for identification of said automobile, the improvement comprising an additional information carrier which contains a coded information in the form of a hologram which is not decodable with the unaided human eye and which can be affixed on said automobile;

said means mounting said additional information carrier onto said automobile.

24. The automobile identification system according to claim 23, wherein said hologram is an infrared hologram.

25. A method for producing an automobile identification system comprising the steps of first providing the surface of a base plate at least partially with a coded information in the form of a hologram, and thereafter providing said base plate with a clear information recognizable by the unaided human eye for identifying said automobile, in such a way that said base plate is an information carrier for said coded information and at the same time is an automobile license plate.

26. A method for producing an automobile identification system comprising the steps of first producing an automobile license plate containing a clear information recognizable by the unaided human eye for identification of the respective automobile, and thereafter applying a thin foil on said license plate, said foil containing a coded information in the form of a hologram which is not decodable by the unaided human eye.

27. An identification system for an automobile including an automobile license plate, comprising:

a base plate having indicia thereon to present identifying information for perception by an unaided human eye; and

a layer of transparent material located on the base plate and embodying coded identifying information in the form of a hologram not decodable by the unaided human eye.