Transponder system for transmitting key-encrypted information and associated keys

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9830481
APP PUB NO 20080199011A1
SERIAL NO

11917041

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A transponder (1) comprises at least one memory (MEM1, MEM2) for storing encrypted information (E_k(EPC, PI)) that has been encrypted by use of a key (k) and for storing the key (k) associated with the encrypted information (E_k(EPC, PI)). The transponder (1) is adapted to send the key (k) slower response than the encrypted information (E_k(EPC, PI)) in response to queries of a reading device (2), which is preferably done by delaying the transmission of the key (k) or by limiting the response rate at which the key (k) is transmitted. In particular the invention is related to RFID systems.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NXP B.V.EINDHOVEN3320

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Maubach, Stefan Nijmegen, NL 2 12
Schrijen, Geert Jan Eindhoven, NL 35 498
Skoric, Boris Den Bosch, NL 39 279
Tombeur, Antoon Marie Henrie Lommel, BE 11 73
Tuyls, Pim Mol, BE 4 6

Cited Art Landscape

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* Cited By Examiner

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