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US006658403B1
(12) United States Patent ao) Patent No.: us 6,658,403 Bi
Kuroda et al. (45) Date of Patent: Dec. 2,2003
(54) APPARATUS AND METHOD FOR
MANAGING ELECTRONIC ORIGINAL DATA
(75) Inventors: Yasutsugu Kuroda, Kawasaki (JP);
Takashi Yoshioka, Kawasaki (JP);
Etsuo Ono, Kawasaki (JP)
(73) Assignee: Fujitsu Limited, Kawasaki (JP)
( * ) Notice: Subject to any disclaimer, the term ol this patent is extended or adjusted under 35 U.S.C. 154(b) by 466 days.
(21) Appl. No.: 09/639,762
(22) Filed: Aug. 15, 2000
(30) Foreign Application Priority Data
Oct. 15, 1999 (JP) 11-293544
(51) Int. CI.7 G06F 17/30
(52) U.S. CI 707/2; 707/1; 707/9; 707/10
(58) Field of Search 707/1-10, 100-104.1,
707/200-205; 715/5, 11, 500; 713/155-158, 165-168, 175-178, 200-202
(56) References Cited
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5,765,152 A * 6/1998 Erickson 707/9
5,872,849 A * 2/1999 Sudia 713/175
5,897,643 A * 4/1999 Matsumoto 715/511
5,937,069 A * 8/1999 Nagai et al 713/162
5,949,879 A * 9/1999 Berson et al 713/179
6,108,420 A * 8/2000 Larose et al 705/59
6,237,096 Bl * 5/2001 Bisbee et al 713/178
6,314,521 Bl * 11/2001 Debry 713/201
6,453,353 Bl * 9/2002 Win et al 709/229
6,512,915 B2 * 1/2003 Matsunoshita et al 399/366
6,513,117 B2 * 1/2003 Tarpenning et al 713/156
FOREIGN PATENT DOCUMENTS
JP 07271903 A * 10/1995 G06K/9/20
JP 09062611 A * 3/1997 G06F/13/28
* cited by examiner
Primary Examiner—Greta Robinson
Assistant Examiner—Linh Black
(74) Attorney, Agent, or Firm—Staas & Halsey LLP
(57) ABSTRACT
An electronic document is registered as electronic original data in an apparatus different from the computer environment ol a user. At this time, a registration certificate for uniquely identilying the electronic original data is issued, and the user accesses the electronic original data using the issued registration certificate.
18 Claims, 28 Drawing Sheets
