JP2008053971A5 - - Google Patents

Claims (12)

Is updated according to a predetermined operation of the device, and the device state information representative of the number of operations of a given operation of the device, a holding means for holding a unique device identification information to the device,
With respect to the recording data, acquisition means for acquiring, as recording information, information relating to the generation of the recording data, which is different from the number of operations ,
Generating means for generating single unique identification information of the recording data based on the device identification information, the device status information, and the recording information;
A data recording apparatus comprising: a recording unit that records the recording data and a file including the unique identification information generated by the generating unit on a recording medium. The data recording apparatus according to claim 1, wherein the device status information includes at least one of a recording count, a data creation count, a data update count, and a shutter operation count by the apparatus. The record information, the acquisition date and time of recording data, acquisition time, data recording apparatus according to claim 1 or 2, characterized in that it comprises at least one of the control information at the time of acquisition. The device identification information is a serial number assigned to the device, MAC address, the data recording apparatus according to any one of claims 1 to 3, characterized in that it comprises at least one random number. The generation unit generates new unique identification information when the content of the recording data is changed with respect to the file stored in the recording medium. The data recording device according to item . When editing is performed in which only the attribute information of the recording data and attribute information included in the file is changed with respect to the file recorded on the recording medium, the generation unit generates new unique identification information. The data recording apparatus according to claim 5, wherein the unique identification information is not updated. The data recording apparatus according to claim 6, wherein the editing in which only the attribute information is changed is an image rotation process. 8. The data recording apparatus according to claim 1, further comprising a counting unit that counts and stores the number of operations of the predetermined operation. The said generation | production means produces | generates the said single specific identification information of the said recording data by the calculation of the said apparatus identification information, the said apparatus status information, and the said recording information, The any one of Claim 1 thru | or 8 characterized by the above-mentioned. The data recording device according to item. Holding means is updated in accordance with a predetermined operation of the device, and the device state information representative of the number of operations of a given operation of the device, a holding step of holding a unique device identification information to the device,
Acquisition means, with respect to recording data, separate from the number of operations, an acquisition step of acquiring Sekiru information to generate the recording data as recorded information,
Generating means, a generating step of generating single, unique identification information of the recording data on the basis said device identification information and the device state information to said recording information,
A control method for a data recording apparatus , wherein the recording means comprises a recording step of recording the recording data and a file including the unique identification information generated in the generating step on a recording medium. A program that causes a computer to function as each unit of the data recording device according to any one of claims 1 to 9. The computer-readable recording medium which recorded the program of Claim 11.