Patents by Inventor Toshiki Nakai

Toshiki Nakai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Musical accompaniment playing apparatus
    Patent number: 5194682
    Abstract: In a musical accompaniment playing apparatus, a reproducing unit reproduces control information from a recording medium on which control information is recorded according to a MIDI standard, a sound source unit generates musical accompaniment information by the control information, a transducer transforms a singer's voice to voice information, a control unit controls a volume level of the musical accompaniment information according to the singer's ability, mixing unit mixes the musical accompaniment information with the voice information, and an output unit outputs the mixed information as sound.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: March 16, 1993
    Assignee: Pioneer Electronic Corporation
    Inventors: Mashiro Okamura, Masuhiro Sato, Naoto Inaba, Yoshiyuki Akiba, Toshiki Nakai