Patents by Inventor Yoshinori Tajika

Yoshinori Tajika 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: 10304432
    Abstract: An electronic musical instrument includes a keyboard, a sound-producing system, and a control unit. A panning value indicating a left-right balance of sound outputted from a left speaker and a right speaker in stereo sound production is assigned to each key of the keyboard such that the left-right balance of soundboard resonant sound waveform data for certain higher-pitch keys is shifted towards the left-speaker as compared with the left-right balance of soundboard resonant sound waveform data for certain lower-pitch keys that are located to the left of the higher-pitch keys so as to produce realistic piano sound mimicking an actual piano.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: May 28, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Yoshinori Tajika
  • Patent number: 10304436
    Abstract: An electronic musical instrument includes a plurality of keys respectively specifying different pitches when operated; a memory; and a sound processor. In response to a current operation of a current key, which is one of the plurality of keys, the sound processor retrieves the information stored in the memory for a previous operation, if any, of a previous key, which is a same as the current key or is another one of the plurality of keys, and performs a prescribed processing on a beginning part of the waveform data generated for the current operation of the current key in accordance with the retrieved information stored in the memory for the previous operation of the previous key so as to generate processed waveform data in response to the current operation of the current key. The resulting processed waveform data can be configured to better mimic artists' performance of an original instrument.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: May 28, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Yoshinori Tajika
  • Publication number: 20180261196
    Abstract: An electronic musical instrument includes a keyboard, a sound-producing system, and a control unit. A panning value indicating a left-right balance of sound outputted from a left speaker and a right speaker in stereo sound production is assigned to each key of the keyboard such that the left-right balance of soundboard resonant sound waveform data for certain higher-pitch keys is shifted towards the left-speaker as compared with the left-right balance of soundboard resonant sound waveform data for certain lower-pitch keys that are located to the left of the higher-pitch keys so as to produce realistic piano sound mimicking an actual piano.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 13, 2018
    Applicant: CASIO COMPUTER CO., LTD.
    Inventor: Yoshinori TAJIKA
  • Publication number: 20180261198
    Abstract: An electronic musical instrument includes a plurality of keys respectively specifying different pitches when operated; a memory; and a sound processor. In response to a current operation of a current key, which is one of the plurality of keys, the sound processor retrieves the information stored in the memory for a previous operation, if any, of a previous key, which is a same as the current key or is another one of the plurality of keys, and performs a prescribed processing on a beginning part of the waveform data generated for the current operation of the current key in accordance with the retrieved information stored in the memory for the previous operation of the previous key so as to generate processed waveform data in response to the current operation of the current key. The resulting processed waveform data can be configured to better mimic artists' performance of an original instrument.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 13, 2018
    Applicant: CASIO COMPUTER CO., LTD.
    Inventor: Yoshinori TAJIKA
  • Patent number: 7429699
    Abstract: In an electronic musical instrument, when a musical tone delay time T1 read from a delay time table TBL depending on a velocity generated by a key being pressed has elapsed, a hammer string-striking sound is generated from musical tone waveform data selected in correspondence with the velocity. At the same time, when an impact delay time T2 read from the delay time table depending on the velocity has elapsed, a shelf board impulsive sound is generated from impact waveform data. The generated hammer string-striking sound and shelf board impulsive sound are added and outputted. As a result, a relationship between the shelf board impulsive sound and the hammer string-striking sound is simulated, and tone variations of an acoustic piano are reproduced.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: September 30, 2008
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yoshinori Tajika
  • Publication number: 20070289435
    Abstract: In an electronic musical instrument, when a musical tone delay time T1 read from a delay time table TBL depending on a velocity generated by a key being pressed has elapsed, a hammer string-striking sound is generated from musical tone waveform data selected in correspondence with the velocity. At the same time, when an impact delay time T2 read from the delay time table depending on the velocity has elapsed, a shelf board impulsive sound is generated from impact waveform data. The generated hammer string-striking sound and shelf board impulsive sound are added and outputted. As a result, a relationship between the shelf board impulsive sound and the hammer string-striking sound is simulated, and tone variations of an acoustic piano are reproduced.
    Type: Application
    Filed: May 24, 2007
    Publication date: December 20, 2007
    Applicant: Casio Computer Co., Ltd.
    Inventor: Yoshinori Tajika