Abstract: In one embodiment, a charged-particle trajectory measurement apparatus for measuring a trajectory of a cosmic ray muon as a charged particle includes: a plurality of detectors, each of which generates a detection signal at the time of detecting a cosmic ray muon; a signal processing circuit that processes the detection signal from the detector; a time calculator that calculates the generation time point of the detection signal from the detector on the basis of the signal outputted from the signal processing circuit; a trajectory calculator that calculates the trajectory of the cosmic ray muon on the basis of the generation time point of the detection signal and the positional information of the detector having detected the cosmic ray muon, wherein the signal processing circuit and each of the detectors are integrally configured by being coupled to each other.

Abstract: An audio data processing means registers one of audio data extracted from a music CD as one of sound sources for an entertainment apparatus. The audio data processing means has an audio data extracting means for sampling desired audio data from the audio data introduced via an optical disk drive based on a control input entered from a manual controller, and an audio data registering means for registering the sampled audio data as one of the sound sources.

Abstract: A music information processing means comprises a music editing means for assigning an arbitrary sound pattern selected from a plurality of sound patterns in a sound buffer to at least one track, a sound presentation trial processing means for outputting the sound pattern assigned to the track on a speaker of a display monitor via SPU when a control input of the user satisfies a predetermined condition, and an audio data processing means for registering audio data extracted from audio data introduced from a music CD (Compact Disc) or the like loaded in an optical disk drive as one of the sound patterns in a sound pattern file in the sound buffer.