Abstract: Various embodiments for protecting keyboard data inputted by a user in a computer having a keyboard hardware are disclosed. According to one exemplary embodiment, a method for protecting keyboard data, where the keyboard hardware comprises an I/O port having an input buffer and an output buffer, includes: receiving scan code data based on keyboard data inputted by the user, wherein the scan code data are latched in the output buffer of the I/O port; executing an interrupt routine to fetch the scan code data from the output buffer to a CPU of the computer, wherein the latched scan code data remains in the output buffer after the latched scan code data are read from the output buffer; transmitting a control command to the keyboard hardware through the input buffer of the I/O port; and receiving from the keyboard hardware a response signal generated in response to the control command, wherein the keyboard hardware is configured to transmit the response signal to the output buffer of the I/O port.

Abstract: Various embodiments for protecting keyboard data inputted by a user in a computer having a keyboard hardware are disclosed. According to one exemplary embodiment, a method for protecting keyboard data, where the keyboard hardware comprises an I/O port having an input buffer and an output buffer, includes: receiving scan code data based on keyboard data inputted by the user, wherein the scan code data are latched in the output buffer of the I/O port; executing an interrupt routine to fetch the scan code data from the output buffer to a CPU of the computer, wherein the latched scan code data remains in the output buffer after the latched scan code data are read from the output buffer; transmitting a control command to the keyboard hardware through the input buffer of the I/O port; and receiving from the keyboard hardware a response signal generated in response to the control command, wherein the keyboard hardware is configured to transmit the response signal to the output buffer of the I/O port.

Abstract: Various embodiments for protecting keyboard data inputted by a user in a computer having a keyboard hardware are disclosed. According to one exemplary embodiment, a method for protecting keyboard data, where the keyboard hardware comprises an I/O port having an input buffer and an output buffer, includes: receiving scan code data based on keyboard data inputted by the user, wherein the scan code data are latched in the output buffer of the I/O port; executing an interrupt routine to fetch the scan code data from the output buffer to a CPU of the computer, wherein the latched scan code data remains in the output buffer after the latched scan code data are read from the output buffer; transmitting a control command to the keyboard hardware through the input buffer of the I/O port; and receiving from the keyboard hardware a response signal generated in response to the control command, wherein the keyboard hardware is configured to transmit the response signal to the output buffer of the I/O port.

Abstract: A security program has an ActiveX format for web browsers and application programs, and comprises a software security input window for preventing leakage of keyboard data without an additional hardware device but rather by using a conventional keyboard. Therefore, the present invention protects keyboard data on the web browsers or application programs.

Abstract: The present invention relates to a system and a method for synthesizing music and voice, and a service system and a service method using the same. The system and method according to the present invention is capable of making a listener feel maximum synthesizing effects to mix the voice and the music. Also, the system and method according to the present invention is capable of synthesizing the voice and music with various effects without the professional synthesizer's volume control.

Abstract: Disclosed is a total system for preventing an online and off-line leakage of information, which includes a security maintenance client having a program storing a file in a storing device and a file security control part which encodes the file content to be stored in the storing device and stores a log information, and security maintenance server which receives the log information and a decoding key and decodes the encoded file. The security maintenance client further includes a communication security control part which has a communication program transmitting a file and encodes the file content to be transmitted to a transmission destination of a network and stores a log information. The security maintenance server further includes an automatic key transmission part which receives a decoding key to be transmitted to the transmission destination according to a file transmission security policy after receiving the log information and the transmission destination.

Abstract: A system and method for providing a service of playing an accompaniment/musical performance is disclosed. In order to embody the system and method for providing the service of playing the accompaniment/musical performance, virtual orchestra system (VOS) files, which is converted from digital music files, e.g., musical instrument digital interface (MIDI) files and includes play order notes and sound data for each musical instrument capable of being played, are used. A server provides the VOS files through a network, e.g., a local area network (LAN), an Intranet, a value added network (VAN), an Internet or a public switched telephone network. A music is selected by a user through at least a client terminal. The play order note for each musical instrument is provided and the sound data for each musical instrument is played based on the play order note, thereby playing in solo or in concert. (At this time, sound for the others musical instrument is silent or used as a background music.