Motion picture playback apparatus and motion picture playback method
First Claim
1. A motion picture playback apparatus which plays back motion-picture data which are stored in a motion-picture data memory and represent a motion picture, and displays the motion picture on a display device, the motion picture playback apparatus comprising:
- an input circuit for receiving tempo information representing a tempo of a piece of music during playback of motion-picture data, the tempo information being one of MIDI tempo clock and MIDI time code;
a tempo value generator for generating a tempo value in accordance with the time intervals of the received tempo information; and
a playback control circuit for reading the motion-picture data from the motion-picture data memory at a read-out speed corresponding to the tempo value and for outputting the read-out motion-picture data to the display device.
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Accused Products
Abstract
The present invention is directed to a motion-picture time scale control instruction system for time-controlled playback of motion picture in accordance with a time-scale control signal. In accordance with the preferred embodiment, during playback of motion-picture data, the CPU of the system outputs to a time-scale control section a time-scale control signal corresponding to a tempo of a piece of music output from a tempo detection mechanism. The time-scale control section adjusts the playback speed of motion-picture data in accordance with the time-scale control signal. The motion-picture playback section reads the motion-picture data from a dedicated RAM while increasing or decreasing the read-out time for each unit of data in accordance with the adjusted playback speed, and outputs the read motion-picture data to the display. On the basis of the timing set information, the system can read the motion-picture data in synchronism with the specific music performance timing, and output the read motion-picture data to the display in synchronism with the played music.
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Citations
12 Claims
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1. A motion picture playback apparatus which plays back motion-picture data which are stored in a motion-picture data memory and represent a motion picture, and displays the motion picture on a display device, the motion picture playback apparatus comprising:
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an input circuit for receiving tempo information representing a tempo of a piece of music during playback of motion-picture data, the tempo information being one of MIDI tempo clock and MIDI time code; a tempo value generator for generating a tempo value in accordance with the time intervals of the received tempo information; and a playback control circuit for reading the motion-picture data from the motion-picture data memory at a read-out speed corresponding to the tempo value and for outputting the read-out motion-picture data to the display device. - View Dependent Claims (2, 3, 4)
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5. A motion picture playback apparatus which plays back a series of motion-picture data sets which are stored in a motion-picture data memory and represent a motion picture, and displays the motion picture on a display device, the motion picture playback apparatus comprising:
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a timing designation circuit for outputting timing set information for designating at least two points among a series of music data sets and at least two points among the series of motion-picture data sets for synchronizing playback timings of the at least two points among the series of music data sets with playback timings of the at least two points among the series of motion-picture data sets; and a playback control circuit for controlling, on the basis of the output timing set information, the timing of reading-out of the motion-picture data from the motion-picture data memory in such a maimer that the play back timings of the at least two points among the series of music data sets coincide with the playback timings of the at least two points among the series of motion-picture data sets, and for outputting the read-out motion-picture data to the display device. - View Dependent Claims (6)
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7. A motion picture playback method for playing back motion-picture data which are stored in a motion-picture data memory and represent a motion picture, and displaying the motion picture on a display device, the motion picture playback method comprising:
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an input step for receiving tempo information representing a tempo of a piece of music during playback of motion-picture data, the tempo information being one of MIDI tempo clock and MIDI time codes; a generating step of generating a tempo value in accordance with the time intervals of the received tempo information; and a playback control step for reading the motion-picture data from the motion-picture data memory at a read-out speed corresponding to the tempo value and for outputting the read-out motion-picture data to the display device. - View Dependent Claims (8, 9, 10)
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11. A motion picture playback apparatus for playing back a series of motion-picture data sets which are stored in a motion-picture data memory and represent a motion picture, and for displaying the motion picture on a display device, the motion picture playback method comprising:
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a timing designation step for outputting timing set information for designating at least two points among a series of music data sets and at least two points among the series of motion-picture data sets for synchronizing playback timings of the at least two points among the series of music data sets with playback timings of the at least two points among the series of motion-picture data sets; and a playback control step for controlling, on the basis of the output timing set information, the timing of reading-out of the motion-picture data from the motion-picture data memory in such a maimer that the playback timings of the at least two points among the series of music data sets coincide with the playback timings of the at least two points among the series of motion-picture data sets, and for outputting the read-out motion-picture data to the display device. - View Dependent Claims (12)
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Specification