Antiforgery security system

• US 6,254,002 B1
• Filed: 07/27/1999
• Issued: 07/03/2001
• Est. Priority Date: 05/17/1996
• Status: Expired due to Fees

• Current Assignee: Mark A. Litman
• Original Assignee: Mark A. Litman
• Inventors: Litman, Mark A.
• Primary Examiner(s): Frech, Karl D.
• Assistant Examiner(s): St. Cyr, Daniel
• Application Number:
  US09/361,473
• Time in Patent Office: 707 Days
• Field of Search: 235/450, 235/449, 235/453, 235/491, 235/493
• US Class Current: 235/450
• CPC Class Codes: G06K 19/06196 Constructional details
• CPC Class Codes: G06K 19/12 the marking being sensed by magnetic means
• CPC Class Codes: G06K 7/084 sensing magnetic material by relative movement detecting flux changes without altering its magnetised state
• CPC Class Codes: G07F 1/06 Coins specially adapted to operate coin-freed mechanisms

Abstract

Security can be enhanced for any circular casino chip, betting chip or token by a magnetically readable system that may be applied to circular casino chip, betting chip or token. A circular casino chip, betting chip or token could be constructed and having at least a first, second and third set of magnetic readable information permanently attached to the circular casino chip, betting chip or token to form a source of magnetically readable information. Each set of magnetic information may have magnetic elements comprising a fiber, magnetic material filled binder, filament or strip, said first magnetic element having at least one magnetic property along the length of said fiber, magnetic filled binder, filament or strip, or physical spacing between said first magnetic element and said second magnetic element which can be mechanically read as different from the magnetic property or position of the second magnetic element. The information can be read from the side of the chip, so that stacks of chips may be read.

Claims

1. A method for authenticating or identifying a circular casino chip, betting chip or token having mechanically readable information thereon to identify or authenticate the casino chip, betting chip or token, wherein said chip or token is circular and wherein magnetic information is present in said casino chip, betting chip or token and said magnetic information at least in part comprises a mass of binder containing magnetic material which forms a part of said circular casino chip, betting chip or token, said information comprising encoded information identifying or authenticating said casino chip, betting chip or token which is readable at a radial distance from a central area of said casino chip, betting chip or token by a single pass relative to a mechanical reading element, at least some of said information extending radially to a face of said casino chip, betting chip or token comprising

placing said casino chip, betting chip or token in position relative to a reading element for reading said information on said circular casino chip, betting chip or token,

moving said circular casino chip, betting chip or token relative to said reading element, reading said information from said circular casino chip, betting chip or token, and

comparing said information from said reading to second information relating to authenticity or identifying data for circular casino chips, betting chips or tokens and determining if said circular casino chip, betting chip or token is authentic or specifically identified wherein said circular casino chip, betting chip or token has at least a first and a second magnetic element permanently attached to the casino chip, betting chip or token forming a first source of magnetic information, each magnetic element having at least one mechanically readable magnetic property along the length of said fiber, filament, magnetic mass, or strip or physical spacing from said second magnetic element that is readable as different from a magnetic property or position of the second magnetic element.

2. A circular casino chip, betting chip or token having at least a first source of mechanically readable information permanently attached to the circular casino chip, betting chip or token to form a source of mechanically readable information on said circular casino chip, betting chip or token that is detectable by relative movement of said circular casino chip, betting chip or token past a reading device, with said relative movement occurring along a path,

said circular casino chip, betting chip or token also having a second area of mechanically readable information readable during relative movement of said circular casino chip, betting chip or token along said path, said second area of mechanically readable information having a known pattern of information useful in determining the instantaneous speed of said relative movement at any time during said relative movement of said circular casino chip, betting chip or token.

3. The circular casino chip, betting chip or token of claim 2 wherein at least one set of magnetic information is within a wafer laminated to at least one face of said circular casino chip, betting chip or token.