Radio frequency identification tag on flexible substrate
First Claim
1. An identification tag for producing a radio frequency identification signal, said tag comprising:
- a flexible substrate;
programmable encoder circuitry formed on said substrate for defining identification information;
an antenna; and
signal generator circuitry carried by said substrate responsive to said encoder circuitry for applying a radio frequency signal bearing said identification information to said antenna.
3 Assignments
0 Petitions
Reexamination
Accused Products
Abstract
An enhanced identification tag produces an identification (ID) signal, i.e., a radio frequency (RF) signal carrying identification information, capable of being interpreted by an electronic reader device. An identification tag in accordance with the invention is characterized by a flexible substrate, programmable encoder circuitry formed on said substrate defining identification information, an antenna, and signal generator circuitry carried by said substrate responsive to said encoder circuitry for applying a radio frequency signal bearing said identification information to said antenna. A preferred tag is fabricated using a printing process to mark a conductive pattern, e.g., comprised of a conductive ink based on silver, carbon, etc., on a flexible substrate, e.g., polytethyline, polyvinyl chloride or other plastic type material. In a typical application, the flexible substrate is then preferably used to form a wrist band that can be used to identify an individual to permit, deny or otherwise determine the level of access to an area, e.g., a concert, a work area or other restricted environment.
503 Citations
20 Claims
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1. An identification tag for producing a radio frequency identification signal, said tag comprising:
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a flexible substrate; programmable encoder circuitry formed on said substrate for defining identification information; an antenna; and signal generator circuitry carried by said substrate responsive to said encoder circuitry for applying a radio frequency signal bearing said identification information to said antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for providing identification information, said system comprising:
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a reader for emitting an electromagnetic signal; a tag responsive to said electromagnetic signal for producing an identification signal in response thereto, said tag comprising; a flexible substrate; an antenna for receiving said electromagnetic signal mounted on said flexible substrate; circuitry coupled to said antenna for generating said signal in response to said electromagnetic signal received by said antenna; and a first pattern of conductive ink printed on said flexible substrate defining at least one of a plurality of selectable electrical connections coupled to said circuitry for defining said identification signal; and wherein said reader is responsive to said identification signal. - View Dependent Claims (11, 12, 13)
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14. A method of forming an identification tag for producing a radio frequency identification signal, said method comprising the steps:
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dispensing a continuous strip of flexible substrate from a dispensing assembly; depositing a first pattern of conductive ink on said flexible substrate to form an antenna; depositing a second pattern of conductive ink on said flexible substrate to form signal generator circuitry for applying said radio frequency identification signal bearing identification information to said antenna; and separating a portion of said flexible substrate including said deposited first and second patterns to define said identification tag. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification