The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 1990
Filed:
May. 11, 1989
Robert L Nathans, Billerica, MA (US);
Other;
Abstract
A scrambled facial image of an ID card bearer is recorded upon a card and is descrambled only by using the proper descrambling control code assigned to the proper bearer upon verification of the authenticity of the bearer. The pixel scrambling method prevents card duplication, as a reproduced card will unscramble only the image of the proper bearer, and the method inherently prevents producing a card which can be unscrambled by a verifier. Updated scrambling codes are used for newly issued cards from enhanced security. Issue clerk initials are automatically recorded upon the card to deter unlawful card issuance. Also, unscrambled image portions are video recorded for investigation of unlawful use.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile