Patents by Inventor Kouichi Kashiwazaki

Kouichi Kashiwazaki 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).

  • Patent number: 8389844
    Abstract: In response to detection of a note-on instruction, a CPU assigns a tone generating unit comprising two tone generating channels and sets tone color control data of the assigned tone generating unit into tone generator registers. The tone color control data includes a parameter common to the two channels. Once the CPU gives a tone generation start instruction to a tone generator, the tone generator accumulates a frequency number common to the two channels to thereby generate a progressive phase common to the two channels. Waveform readout section reads out left-channel and right-channel waveform data from a waveform memory on the basis of the phase and waveform selecting information of the left and right channels. Tone characteristics of the read-out left- and right-channel waveform data are controlled by a characteristic control section on the basis of a characteristic control parameter common to the two channels.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: March 5, 2013
    Assignee: Yamaha Corporation
    Inventors: Hiroyuki Tsuchiya, Kazuyuki Ito, Masahiko Hasebe, Kouichi Kashiwazaki, Hiroyuki Iwase
  • Patent number: 8383924
    Abstract: A CPU 19a supplies parameters on musical tone signals to a tone generator 17 having a plurality of tone generation channels CH0, CH1, . . . , CH127 each generating a musical tone signal. The parameters include channel information which designates one or more of the tone generation channels, and musical tone information which defines respective musical tone signals which are to be generated in the respective tone generation channels designated by the channel information. The tone generator 17 has a tone generation reservation circuit 17b which makes the designated tone generation channels start generation of the musical tone signals defined by the musical tone information when the respective tone volume levels of musical tone signals currently generated in the tone generation channels designated by the channel information are equal to or below a certain tone volume level.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: February 26, 2013
    Assignee: Yamaha Corporation
    Inventors: Hiroyuki Tsuchiya, Kouichi Kashiwazaki
  • Publication number: 20120031256
    Abstract: In response to detection of a note-on instruction, a CPU assigns a tone generating unit comprising two tone generating channels and sets tone color control data of the assigned tone generating unit into tone generator registers. The tone color control data includes a parameter common to the two channels. Once the CPU gives a tone generation start instruction to a tone generator, the tone generator accumulates a frequency number common to the two channels to thereby generate a progressive phase common to the two channels. Waveform readout section reads out left-channel and right-channel waveform data from a waveform memory on the basis of the phase and waveform selecting information of the left and right channels. Tone characteristics of the read-out left- and right-channel waveform data are controlled by a characteristic control section on the basis of a characteristic control parameter common to the two channels.
    Type: Application
    Filed: August 2, 2011
    Publication date: February 9, 2012
    Applicant: YAMAHA CORPORATION
    Inventors: Hiroyuki TSUCHIYA, Kazuyuki ITO, Masahiko HASEBE, Kouichi KASHIWAZAKI, Hiroyuki IWASE
  • Publication number: 20110219941
    Abstract: A CPU 19a supplies parameters on musical tone signals to a tone generator 17 having a plurality of tone generation channels CH0, CH1, . . . , CH127 each generating a musical tone signal. The parameters include channel information which designates one or more of the tone generation channels, and musical tone information which defines respective musical tone signals which are to be generated in the respective tone generation channels designated by the channel information. The tone generator 17 has a tone generation reservation circuit 17b which makes the designated tone generation channels start generation of the musical tone signals defined by the musical tone information when the respective tone volume levels of musical tone signals currently generated in the tone generation channels designated by the channel information are equal to or below a certain tone volume level.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 15, 2011
    Applicant: YAMAHA CORPORATION
    Inventors: Hiroyuki TSUCHIYA, Kouichi Kashiwazaki
  • Patent number: 7960639
    Abstract: First display object associated with a control operating member and a second display object associated with a tone color effect parameter are displayed, and variation of a displayed position of the first display object is controlled in accordance with operation of the control operating member. Control value of the tone color effect parameter is determined in response to variation in relationship between the first and second display objects, and tone control is performed on the basis of the determined control value. Further, the variation of the displayed position of the first display object is controlled so as to move on and along a set path, so that displayable positions of the first display object is limited to the set path. Control value of the tone color effect parameter is determined on the basis of relationship between displayed position of the first and second display objects to perform tone control.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: June 14, 2011
    Assignee: Yamaha Corporation
    Inventors: Takashi Mizuhiki, Kouichi Kashiwazaki
  • Publication number: 20090308231
    Abstract: First display object associated with a control operating member and a second display object associated with a tone color effect parameter are displayed, and variation of a displayed position of the first display object is controlled in accordance with operation of the control operating member. Control value of the tone color effect parameter is determined in response to variation in relationship between the first and second display objects, and tone control is performed on the basis of the determined control value. Further, the variation of the displayed position of the first display object is controlled so as to move on and along a set path, so that displayable positions of the first display object is limited to the set path. Control value of the tone color effect parameter is determined on the basis of relationship between displayed position of the first and second display objects to perform tone control.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 17, 2009
    Applicant: YAMAHA CORPORATION
    Inventors: Takashi MIZUHIKI, Kouichi KASHIWAZAKI
  • Publication number: 20080163744
    Abstract: In a musical sound generator that generates plural element tones based on plural pieces of element data and generates a musical sound by combining the generated element tones, a selector selects, upon detecting a sound generation control event, one or more pieces of element data among the plural pieces of element data according to the sound generation control event and in the way corresponding to the sound generation type of each of the plural pieces of element data, and a generator generates, in accordance with each of the element data selected by the selector, an element tone having sound characteristics corresponding to the parameter included in the detected sound generation control event and the characteristic control data included in each of the selected element data.
    Type: Application
    Filed: January 7, 2008
    Publication date: July 10, 2008
    Applicant: Yamaha Corporation
    Inventors: Kouichi Kashiwazaki, Takehiko Nakao