Radio frequency identification tag with emulated multiple-time programmable memory
First Claim
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1. A method, comprising:
- providing a radio frequency identification (RFID) tag comprising a memory, the memory comprising a plurality of one time programmable (OTP) non-volatile memory locations configured to enable the memory to emulate a hardened memory;
receiving, at the RFID tag, an interrogation signal from an RFID interrogator comprising a command to store data to the RFID tag, wherein the RFID tag stores the data to a first OTP non-volatile memory location and a second OTP non-volatile memory location where the data stored to the second OTP non-volatile memory location is redundant with the data stored to the first OTP non-volatile memory location;
receiving, at the RFID tag, an interrogation signal from the RFID interrogator comprising a command to read the data from the RFID tag;
running a memory test to determine if the first OTP non-volatile memory location has been damaged; and
reading and transmitting the data from the second OTP non-volatile memory location if the first OTP non-volatile memory location is damaged.
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Abstract
In embodiments of the present invention improved capabilities are described for a Radio Frequency Identification (RFID) tag comprising a memory system with a plurality of one time programmable (OTP) non-volatile memory locations configured to emulate at least one multiple time programmable (MTP) memory location, wherein the plurality of OTP non-volatile memory locations configured to emulate the at least one MTP memory location are associated with one address, the one address being readable and writable.
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Citations
32 Claims
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1. A method, comprising:
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providing a radio frequency identification (RFID) tag comprising a memory, the memory comprising a plurality of one time programmable (OTP) non-volatile memory locations configured to enable the memory to emulate a hardened memory; receiving, at the RFID tag, an interrogation signal from an RFID interrogator comprising a command to store data to the RFID tag, wherein the RFID tag stores the data to a first OTP non-volatile memory location and a second OTP non-volatile memory location where the data stored to the second OTP non-volatile memory location is redundant with the data stored to the first OTP non-volatile memory location; receiving, at the RFID tag, an interrogation signal from the RFID interrogator comprising a command to read the data from the RFID tag; running a memory test to determine if the first OTP non-volatile memory location has been damaged; and reading and transmitting the data from the second OTP non-volatile memory location if the first OTP non-volatile memory location is damaged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system, comprising:
a radio frequency identification (RFID) tag comprising a memory, the memory comprising a plurality of one time programmable (OTP) non-volatile memory locations configured to emulate at least one multiple time programmable (MTP) memory location, wherein the plurality of OTP non-volatile memory locations configured to emulate the at least one MTP memory location are associated with one address, the one address being readable and writable. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 31)
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20. A method, comprising:
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providing a radio frequency identification (RFID) tag comprising a memory, the memory comprising a plurality of one time programmable (OTP) non-volatile memory locations, wherein the plurality of OTP non-volatile memory locations are configured to emulate at least one multiple time programmable (MTP) memory location for storing data, wherein the plurality of OTP non-volatile memory locations configured to emulate the at least one MTP memory location are associated with one address, the one address being readable and writable. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32)
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Specification