Abstract: A method practiced in connection with a computer game, video game or the like constantly evolves the game's music by permutting several basic themes and rhythms used. A harmonic pointer and rhythm pointer start the music so as to conform to a musical style desired in connection with a displayed scene or other event. Once the pointers have been set to a current musical style, the permutation process evolves the basic themes and rhythms and regenerates new music whose form is a stream of variations of the original themes thoughout the history of an individual game play experience, thus providing a large amount of musical content without having to store a large, complex, prerecorded musical score defined for each scene of the game. The amount of memory needed for musical passages is limited because a complex musical output is created from only a limited set of basic themes and rhythms. Initial musical themes are set during the game installation and musical themes evolve during the game.

Abstract: An improved, multicolored video imaging system to provide a video image on a projection surface, which system includes a red, blue and green pulsed laser as a light source to provide inlet beams, an acoustic-optical cell to receive the inlet beams, an electrical signal to a sound transducer on the cell to provide a sound-modulated outlet beam; a projection surface to display the multicolored image and a projection system to project the outlet beam onto the projection surface to display the video image. The system includes as an improvement a solid state actuator to move a distance in a 45.degree. direction to backtrack the line of image of the outlet beam and a ramp signal device to provide a ramp signal that is proportional in time to the pulse duration of the input beams when the pulse duration is longer than the pixel propagation time for a line of image to be displayed, thereby minimizing the blurring of the line of image displayed.

Abstract: A multiplexed, multicolored video imaging system which comprises a plurality of pulsed lasers to provide input beams, a single acoustic-optical cell to receive the input beams, a transducer to modulate the input beams in the cell, a signal generator to produce sound waves in the cell corresponding to the electrical signals used for a line image; data compressor to decrease the time of propagation of the sound waves in the cell; multiplexer to provide an electrical signal corresponding to each wavelength to separate and sequentially modulate the video signals to provide a multiplexed, modulated output beam, a projection surface and projector to form a line multiplexed, multicolored output on the projection surface.

Abstract: A video imaging system is disclosed. The system is responsive to electrical signals introduced into it, which electrical signals represent an image. The system includes an acoustic-optical cell, the cell including an anisotropic medium for sound transmittal. The electrical signals are received, and optionally compressed, before being introduced into transducers mounted on the cell. The transducers convert the electrical signals into sound waves which traverse the width of the cell. After substantially a full line of display of the image is traveling through the cell, a monochromatic light source, such as a metal vapor pulsed laser, is pulsed for a time duration less than the propagation time of a single pixel across or transverse to the sound signal in the cell. This modulates the monochromatic light which is then focused and displayed on the screen at the appropriate position for the line of image.