The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2011
Filed:
Jun. 22, 2009
Kunio Kobayashi, Yokohama, JP;
Hikaru Morita, Yokohama, JP;
Koutarou Suzuki, Yokosuka, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A bid-opening devicereceives from each bidding devicea bidding price index γ=g(h(IV)) (where IVis an initial value, hindicates k-times processing with a one-way function h and g is a one-way function) and its identifier ID. The received information is stored on a common bulletin board. D=h(IV) (where D=g(D) is generated with k set as the upper limit value K of the bidding price. The bulletin boardis checked for γwhich matches this D. If no match is found, m is incremented by one, and the check for γ−Dmatching is made for each of m bidding devices. Upon completion of the matching for all the bidding devices, k is decremented by one, and a check is made for γwhich matches D=g(h(IV)), and the index k for which they match is determined as the highest price bid. The bid-opening deviceoutputs that k and the identifier IDof γ.