Information security – Access control or authentication
Reexamination Certificate
2011-01-04
2011-01-04
Vu, Kimyen (Department: 2435)
Information security
Access control or authentication
Reexamination Certificate
active
07865935
ABSTRACT:
When an electronic apparatus is forcibly put into an inoperable state by theft, the inoperable state is canceled using a code from a dealer, without carrying the electronic apparatus into the dealer. After electric power is supplied again, a CD reproduction apparatus is used to playback a CD, and TOC information is used as a code C1. When code C1is identical to an authorized code A21,the electronic apparatus is made operable. To cancel the inoperable state after the number of inconsistencies becomes 10 or more, a code A22is notified to the dealer. The dealer carries out a calculation using the code A22,and a result B2of the calculation is notified to the user. An individual code calculating means carries out the same calculation as the above-mentioned calculation and obtains calculation result B3.When calculation result B2coincides with calculation result B3,the inoperable state is canceled.
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Harada Minoru
Kamino Masaru
Watabe Hiroyuki
Fujitsu Ten Limited
Truvan Leynna T
Vu Kimyen
Wenderoth , Lind & Ponack, L.L.P.
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