Abstract: An interactive system is provided. The interactive system includes an electronic device, a first image display device and a second image display device. The electronic device transmits a first image information to the first image display device for display. The electronic device transmits a second image information to the second image display device for display. Through the second image display device, a three-dimensional second image information is displayed in a space on one side of the second image display device. The three-dimensional second image information at least interacts with an object.

Abstract: An interactive system is provided. The interactive system includes an electronic device, a first image display device and a second image display device. The electronic device transmits a first image information to the first image display device for display. The electronic device transmits a second image information to the second image display device for display. Through the second image display device, a three-dimensional second image information is displayed in a space on one side of the second image display device. The three-dimensional second image information at least interacts with an object.

Abstract: A music accompaniment machine processes a music accompaniment file to alter a stored beat of the music accompaniment file to match a beat established by a user. The machine identifies the beat of the user using a voice analyzer. The voice analyzer isolates the user's singing signal from excess background noise and appends segment position information to the singing signal, which is indicative of the beat established by the singer. A MIDI controller alters the musical beat of the music accompaniment file so that it matches the beat established by the user.

Abstract: A real time dynamic MIDI controller pre-processes MIDI files to facilitate playback by re-formatting stored MIDI files into a modified MIDI file format and simultaneously eliminating MIDI META events that are stored in the file, but unnecessary for playback. The MIDI controller includes an administrator to effect channel grouping, channel voice message grouping, or a combination thereof, to facilitate the control of selected MIDI file parameters. The real time dynamic MIDI controller also includes an output interface circuit to coordinate the transmission of one or more MIDI file that the MIDI controller has processed.

Abstract: A cover-actuated keyboard encoding system is disclosed which can be used either alone or as a part of a universal remote control unit. It contains (a) a keyboard; (b) a memory for storing a plurality of control codes; (c) a special keyboard cover for covering the first keyboard; and (d) a computer program to convert the covered keys of the first keyboard into a control code. The keyboard cover is designed such that it contains one or more key-seat protrusions which are arranged such that they will be pressing against one or more of the first keys when the keyboard cover is closed. A CPU is programmed to scan the key board and convert the scanned keyboard value to a control code, in accordance with the number and locations of the keys that are being pressed during a power-on or a reset.