Patents by Inventor Akira MAEZAWA

Akira MAEZAWA 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).

  • Publication number: 20150277731
    Abstract: Once obtained a turn-over instruction to proceed a score on one image area to which one grand staff among plural grand staves displayed on a screen of a user I/F belongs, a controller of a score displaying apparatus performs a process of scrolling the image areas upward on the screen of the user I/F, disposing the image area on which the turn-over instruction is accepted at a highest level of the screen of the user I/F, sequentially aligning a plurality of consecutive image areas in a forward direction on a timeline of the score with respect to the image area on which the turn-over instruction is accepted below the image area on which the turn-over instruction is accepted, and displaying the image areas on the screen of the user I/F.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Norihiro UEMURA, Motoichi TAMURA, Yasuyuki UMEYAMA, Takuya FUJISHIMA, Yoshihiro KATSUMATA, Kazuki KASHIWASE, Motoji NAGATA, Akira MAEZAWA
  • Patent number: 9087501
    Abstract: A sound signal analysis apparatus 10 includes sound signal input portion for inputting a sound signal indicative of a musical piece, tempo detection portion for detecting a tempo of each of sections of the musical piece by use of the input sound signal, judgment portion for judging stability of the tempo, and control portion for controlling a certain target in accordance with a result judged by the judgment portion.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 21, 2015
    Assignee: YAMAHA CORPORATION
    Inventor: Akira Maezawa
  • Publication number: 20140260912
    Abstract: A sound signal analysis apparatus 10 includes sound signal input portion for inputting a sound signal indicative of a musical piece; feature value calculation portion for calculating a first feature value indicative of a feature relating to existence of a beat in one of sections of the musical piece and a second feature value indicative of a feature relating to tempo in one of the sections of the musical piece; and estimation portion for concurrently estimating a beat position and a change in tempo in the musical piece by selecting, from among a plurality of probability models described as sequences of states q classified according to a combination of a physical quantity relating to existence of a beat in one of the sections of the musical piece and a physical quantity relating to tempo in one of the sections of the musical piece, a probability model whose sequence of observation likelihoods each indicative of a probability of concurrent observation of the first feature value and the second feature value in c
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: YAMAHA CORPORATION
    Inventor: Akira MAEZAWA
  • Publication number: 20140260911
    Abstract: A sound signal analysis apparatus 10 includes sound signal input portion for inputting a sound signal indicative of a musical piece, tempo detection portion for detecting a tempo of each of sections of the musical piece by use of the input sound signal, judgment portion for judging stability of the tempo, and control portion for controlling a certain target in accordance with a result judged by the judgment portion.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: YAMAHA CORPORATION
    Inventor: Akira MAEZAWA