Company Filing History:
Years Active: 1995-2015
Title: Innovations of Tokio Shirakawa
Introduction
Tokio Shirakawa is a prominent inventor based in Hamamatsu, Japan. He has made significant contributions to the field of musical tone generation, holding a total of 9 patents. His work focuses on enhancing the technology behind musical instruments, particularly in the area of sound synthesis.
Latest Patents
One of his latest inventions is a musical tone signal generating apparatus. This apparatus features a waveform memory that stores multiple compressed data sets obtained through linear prediction of sampled musical tones. The device includes a cache circuit that retrieves compressed data from the waveform memory during a designated computing period to generate musical tones. Additionally, it has a decoding circuit that decodes this compressed data, outputting it as sample values. The apparatus also incorporates a CPU that inputs tone pitch information, identifies the necessary waveform data, and determines the length of the computing period accordingly.
Another notable patent is the tone generation apparatus, which allows for the reading of waveform data stored in a NAND-type flash memory without interrupting the CPU. This system reads data on a page-by-page basis, supplying a buffer with waveform sample data. It ensures high-speed access to the waveform data by preloading the next page into the buffer before the current page's readout is complete.
Career Highlights
Tokio Shirakawa is currently employed at Yamaha Corporation, a leading company in the musical instrument industry. His innovative work has contributed to the advancement of sound technology, making musical instruments more versatile and efficient.
Collaborations
Throughout his career, Shirakawa has collaborated with notable colleagues, including Masaki Kudo and Masatsugu Okazaki. These partnerships have fostered a creative environment that has led to groundbreaking advancements in musical technology.
Conclusion
Tokio Shirakawa's contributions to the field of musical tone generation exemplify the spirit of innovation. His patents reflect a deep understanding of sound synthesis and technology, making a lasting impact on the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.