SECURITY FOR BLISTER PACKS
First Claim
1. A blister pack, comprising:
- a base having a plurality of cavities formed therein, each of said cavities holding one of a plurality of products;
a sealing sheet provided on top of said base and covering said cavities;
a network provided on or within one of said sealing sheet and said base, said network being structured to receive one or more RF interrogation signals from a reader device, said network including a plurality of chips, each of said chips being provided adjacent to a respective one of said products, said network having one or more conductors provided on or within said sealing sheet and operatively coupled to one or more of said chips, wherein said network, in response to receiving said one or more RF interrogation signals, provides an indication to said reader device as to whether said network is intact.
1 Assignment
0 Petitions
Accused Products
Abstract
Various RFID based blister pack embodiments are provided for improving the ability to detect and prevent tampering and counterfeiting of blister packs and/or facilitating the chain of custody tracking of blister packs during manufacture. Some embodiments employ an RFID chip network on the blister pack and some embodiments employ an RFID strap network on the blister pack, wherein the integrity of the network (or lack thereof) is used to indicate the possibility of tampering. Other embodiments determine the possibility of tampering based on the frequency of an RF signal that is received from a chip provided on the blister pack, which will vary depending on whether the associated antenna has been detuned as a result of some type of tampering.
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Citations
31 Claims
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1. A blister pack, comprising:
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a base having a plurality of cavities formed therein, each of said cavities holding one of a plurality of products; a sealing sheet provided on top of said base and covering said cavities; a network provided on or within one of said sealing sheet and said base, said network being structured to receive one or more RF interrogation signals from a reader device, said network including a plurality of chips, each of said chips being provided adjacent to a respective one of said products, said network having one or more conductors provided on or within said sealing sheet and operatively coupled to one or more of said chips, wherein said network, in response to receiving said one or more RF interrogation signals, provides an indication to said reader device as to whether said network is intact. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A blister pack, comprising:
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a base having a plurality of cavities formed therein, each of said cavities holding one of a plurality of products; a sealing sheet provided on top of said base and covering said cavities; one or more networks provided on or within said sealing sheet and on or within said base, each of said one or more networks being structured to receive one or more RF interrogation signals from a reader device, each of said one or more networks including a plurality of chips, each of said chips being provided adjacent to a respective one of said products, each of said one or more networks having one or more conductors provided on or within one or both of said sealing sheet and said base and operatively coupled to one or more of said chips, wherein each of said one or more networks, in response to receiving said one or more RF interrogation signals, provides an indication to said reader device as to whether the network is intact. - View Dependent Claims (24, 25, 26, 27)
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28. A method of detecting that a blister pack may have been tampered with, said blister pack having a base having a plurality of cavities formed therein, each of said cavities holding one of a plurality of products, and a sealing sheet provided on top of said base and covering said cavities, the method comprising;
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providing a chip and an antenna on said blister pack, said chip being operatively coupled to said antenna, said antenna being structured to transmit RF signals having a frequency within a predetermined frequency range when in an undamaged condition and to be detuned when damaged, said antenna, when detuned, being structured to transmit RF signals having a frequency outside of said predetermined frequency range; transmitting an RF interrogation signal from a reader device to said chip; in response to said RF interrogation signal, receiving an RF response signal from said chip that is transmitted through the antenna; and determining whether said blister pack may have been tampered with based on a frequency of said RF response signal. - View Dependent Claims (29, 30, 31)
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Specification