Location History:
- Suita, JA (1977)
- Suita, JP (1978 - 1979)
Company Filing History:
Years Active: 1977-1979
Title: Masahiko Tsunoo: Innovator in Electronic Music Technology
Introduction
Masahiko Tsunoo is a prominent inventor based in Suita, Japan. He has made significant contributions to the field of electronic music instruments, holding a total of 4 patents. His innovative designs have advanced the technology used in electronic organs and musical instruments.
Latest Patents
One of Tsunoo's latest patents is a tone generator system for an electronic organ. This system is capable of being fabricated into an LSI structure and receives a saw-tooth wave or staircase wave as input. It includes a frequency divider with a ladder resistor network and complementary MOS FET devices. Additionally, it features an analog switch with a wide dynamic range and high linearity in input-output transfer characteristics. The system also incorporates a sustain means with a novel variable impedance element and an impedance converter free from D.C. level shift. This arrangement provides a high-quality tone generator system for electronic organs.
Another notable patent is for an electronic musical instrument that includes multiple tone selectors for selecting musical tones. It features a waveshape calculator that calculates waveshapes represented by amplitudes at sampled points of the selected tone. The instrument also has waveshape memories, a clock signal generator, and a reading circuit that reads out the memorized waveshape amplitudes. This innovative design allows for the generation of musical tones by repetitively reading out temporarily memorized musical waveshapes.
Career Highlights
Masahiko Tsunoo has worked at Matsushita Electric Industrial Co., Ltd., where he has been instrumental in developing cutting-edge electronic music technology. His work has significantly impacted the design and functionality of electronic musical instruments.
Collaborations
Tsunoo has collaborated with notable coworkers, including Takeji Kimura and Michihiro Inoue. Their combined expertise has contributed to the advancement of electronic music technology.
Conclusion
Masahiko Tsunoo's innovative contributions to electronic music instruments have established him as a key figure in the industry. His patents reflect a commitment to enhancing the quality and functionality of electronic organs and musical instruments.