Source: https://patents.google.com/patent/US8375441
Timestamp: 2018-02-25 08:14:40
Document Index: 783256648

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 2007290325', 'Application No. 2007261035', 'Application No. 2007290325', 'Application No. 2007261035', 'Application No. 200780027259', 'Application No. 200780027259', 'Application No. 07812194', 'Application No. 07853494', 'Application No. 2009', 'Application No. 2007261035', 'Application No. 2009101311', 'Application No. 2009101311']

US8375441B2 - Portable consumer device configured to generate dynamic authentication data - Google Patents
US8375441B2
US8375441B2 US12874008 US87400810A US8375441B2 US 8375441 B2 US8375441 B2 US 8375441B2 US 12874008 US12874008 US 12874008 US 87400810 A US87400810 A US 87400810A US 8375441 B2 US8375441 B2 US 8375441B2
US20110066516A1 (en )
This application is a continuation of U.S. patent application Ser. No. 11/764,622, filed Jun. 18, 2007, now U.S. Pat. No. 7,810,165, issued Oct. 5, 2010, which claims the benefit of U.S. Provisional Patent Application No. 60/815,059, filed Jun. 19, 2006, U.S. Provisional Patent Application No. 60/815,430, filed Jun. 20, 2006, and U.S. Provisional Patent Application No. 60/884,089, filed Jan. 9, 2007. The entire contents of these applications are herein incorporated by reference for all purposes.
a read-write device housed by the portable body and coupled to the memory, the read-write device being configured to change the dynamic authentication data each time the portable consumer device is temporarily powered by an external device, wherein the read-write device is configured to read the dynamic authentication data from the memory before a transaction, and write updated dynamic authentication data to the memory after the transaction; and
an antenna coupled to the portable body and coupled to the read-write device,
wherein the read-write device is configured to function only when receiving power from the external device that is not of the consumer.
2. The portable consumer device of claim 1, wherein each and every time the antenna is within range of an active energy field of the external device, the dynamic authentication data is communicated to the external device via the antenna.
3. The portable consumer device of claim 2, wherein external device comprises a contactless point-of-sale device which requires no physical contact with the portable body in order to communicate to the antenna.
4. The portable consumer device of claim 2, wherein the contactless point-of-sale device generates the active energy field in order to conduct a transaction with the consumer.
5. The portable consumer device of claim 1, wherein the antenna comprises a coil which generates a charge to power the read-write device each and every time the charge is generated via an electromagnetic field generated by the external device.
6. The portable consumer device of claim 1, wherein the portable body comprises a payment card.
7. The portable consumer device of claim 6, wherein the external device is one of an ATM device and point-of-sale device.
8. The portable consumer device of claim 1, wherein electrical energy used to temporarily power the read-write device is only sourced from the external device.
9. The portable consumer device of claim 8, wherein the electrical energy is temporarily stored in an energy storage device within the portable body, and wherein the temporarily stored electrical energy is completely discharged from the energy storage device by the end of a transaction with the external device.
10. The portable consumer device of claim 9, wherein each time the electrical energy is used to temporarily power the read-write device, the read-write device is further configured to generate a verification value based on the updated authentication data.
11. The portable consumer device of claim 1, further comprising:
a processor housed by the portable consumer device, configured to generate the dynamic verification value using an algorithm stored in the memory.
12. The portable consumer device of claim 1, wherein the portable consumer device is configured to receive power from the external device when the portable consumer device is positioned within or adjacent to the external device.
US20110066516A1 true US20110066516A1 (en) 2011-03-17
US8375441B2 true US8375441B2 (en) 2013-02-12
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