The portable communication device 10 includes a central processor 13, an input unit 14, a display unit 15, a communication unit 16, an image capturing unit 17, and a seal 18.
The input unit 14 is configured for receiving operational inputs to operate the portable communication device 10, such as an input for activating the image capturing unit 18, an input for sending a file code generation request to the server 12, and an input for sending a log file generation request to the server 12.
The communication unit 16 is configured for transferring data between the portable communication device 10 and the server 12 through the wireless network 11.
The image capturing unit 17, such as a built-in camera, is used for capturing a digital image of a paper document.
Referring to
Referring to
The server 12 stores a computer program for generating a file code and a log file. The file code is a unique code and is generated randomly after the server 12 receives the file code generation request. The file code can be a combination of digits, a combination of alphabets, a combination of alphanumeric characters, or a combination of characters. The file code is stored in a specific folder on the server 12.
After receiving the file code, the central processor 13 generates a control signal according to the file code and sends the control signal to the seal 18. The motors 186 then correspondingly drive the rotatable discs 185, rotating the discs 185 to expose corresponding raised mirrored digits 184 through the openings 183 according to the control signal, thus, a combination of raised mirrored digits 184 corresponding to the file code protrudes out of the openings 183. As a result, a seal impression, including the engravings 182 and the combination of raised mirrored digits 184 according to the file code, is obtained on the engraved surface 181, thereby yielding a generated seal impression.
After the generated seal impression is obtained, the engraved surface 181 of the seal 18 is pressed on an inkpad and then pressed on the paper document, thus affixing a print of the generated impression on the paper document.
After the seal impression is affixed on the paper document, the digital image of the paper document can be captured and sent to the server 12 via the portable communication device 10. The digital image is then stored in the specific folder containing the file code.
After the digital image is sent to the server 12, the log file generation request can be sent to the server 12. After receiving the log file code generation request, the server 12 generates the log file.
The log file includes the user name in the user profile, the date of receiving the log file generation request, and the file code and the digital image stored in the specific folder. The user name is the name of a person who approves the paper document. The date of receiving the log file generation request is the date of approving the paper document.
The file code is unique and so the seal impression includes the combination of digits is unique. If a seal impression on a paper document does not correspond with the seal impression in the digital image of a corresponding log file, the seal impression on the paper document is counterfeited. So when verifying a seal impression on a paper document, accessing the server 12 and comparing the seal impression on the paper document with the digital image of the corresponding log file stored on the server 12.
In step S22, the server 11 verifies the user name and the user password according to the user profile. If the user name and the user password are valid, the server 11 sends a confirmation signal to the portable communication device 10.
In step S23, the communication unit 17 sends the file code generation request to the server 12. In step S24, the server 11 generates the file code in response to the file code generation request and sends the file code to the portable communication device 10.
In step S25, the central processor 13 sends the control signal to the seal 18. In step S26, the seal 18 generates the combination of digits 184 which corresponds to the file code. As a result, the combination of digits 184 accompanying with the engravings 182 forms the seal impression.
In step S27, the image capturing unit 14 is activated to capture an image of the paper document with the seal impression. In step S28, the communication unit 16 sends the log file generation request to the server 11. In step S29, the server 11 generates the log file in response to the log file generation request.
Although the present invention has been specifically described on the basis of a preferred embodiment including preferred methods thereof, the invention is not to be construed as being limited thereto. Various changes or modifications may be made to the embodiment including the methods without departing from the scope and spirit of the invention.
Number | Date | Country | Kind |
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200610062448.1 | Sep 2006 | CN | national |