Abstract: This invention provides karaoke system that reduces declination between playing melody signaling an incoming call and displaying characters or pictures. To this end, the karaoke system of this invention plays karaoke song comprising contents with karaoke event data, and synchronization of karaoke events are achieved by executing the events described in time order in the contents of the karaoke by following a timing dictated by synchronization data.

Abstract: A music playback unit for correcting the frequency characteristics of a speaker installed in a portable telephone, without using an equalizer. The musical score data is stored in the SMF memory, and data for correcting the velocity of musical score data for each velocity of each note is stored in a DB memory. The sound generator driver reads the musical score data from the SMF memory, and reads the correction data from the DB memory, and also corrects the velocity of the musical score data by substituting the musical score data and correction data in a predetermined calculation formula. The musical score data after the velocity is corrected is played by the MIDI sound generator, amplifier and speaker.

Abstract: Graphite powder for a negative electrode in prior arts, which allows lithium ions to repeat intercalation and deintercalation reversibly by charge and discharge, has failed to attain a specific capacity close to the theoretical capacity of 372 mAh per 1 g. Also, there was a problem in storage property at a high temperature when it is attempted to improve the high rate charge and discharge characteristics. An object of the present invention is to solve these problems. In the process of pulverizing flaky graphite particles of which plane interval (d002) of (002) plane is 3.350 to 3.