Patent Document ID: 8799317
Application ID: 13514966

Base Claim:
1. A forensic system configured to acquire digital information recorded on a plurality of computers or a server to analyze the acquired digital information, the forensic system comprising: a digital information acquiring unit configured to acquire digital information containing digital document information composed of a plurality of document files, to acquire user information about users using the plurality of computers or the server, and to acquire access history information which shows a fact that the users accessed a document file recorded in the server; a recording unit configured to record therein digital information acquired by the digital information acquiring unit; a first display unit usable by a first operator configured to display the recorded digital information; a second display unit usable by a second operator configured to display the recorded digital information; a specific-individual selecting unit configured to select, via at least one of the first display unit or the second display unit, a specific first individual and a specific second individual from the users contained in the user information, wherein the first operator, the second operator, the specific first individual, and the specific second individual are different from each other; a control unit including: a digital document information extracting unit operable on a first server and configured to extract only digital document information which was accessed by the specific first individual and the specific second individual based on the access history information related with the selected specific first individual and the selected specific second individual; a file analysis function configured to analyze a kind of document file which was accessed or possessed by the specific first individual and the specific second individual; a kind selection function configured to cause the extraction unit to extract a particular kind of document file; a preservation function configured to preserve the extracted document file as a separate file and to control the status thereof; and a clock unit which, when newly acquiring digital information, is configured to clock a time and date of the acquisition of the digital information, the digital information further including folder information saving digital document information, wherein the digital information acquiring unit is configured to acquire the digital document information and the folder information which were produced after a time and date previously clocked by the clock unit, and wherein the digital information acquiring unit is configured to acquire user information and access history information related with the acquired digital document information and the folder information; a first additional information setting unit usable by the first operator and a second additional information setting unit usable by the second operator configured to simultaneously set, via the first display unit and the second display unit, respectively, additional information indicating which document files in the extracted digital document information are each related with litigation, and which document files in the extracted digital document information are each not related with litigation; the control unit further including: a multi-language full-text searching unit operable on a second server and configured to perform a multi-language full-text search of the document files based on the extracted digital document information; and a managing unit including an access right control function configured to set one or more rights for each account of a browser; and an output unit configured to output a document file related with the litigation based on the additional information.

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Claim 5:
5. The forensic system according to claim 1 , further comprising: a statistical data producing unit configured to produce statistical data represented by data size for each data format of the acquired digital document information or statistical data represented by data size for each data format of the searched digital document information.