Location History:
- Tokyo, JP (1981 - 1984)
- Saitama, JP (1994 - 1995)
Company Filing History:
Years Active: 1981-1995
Title: Hitoshi Hirata: Innovator in Audio Signal Technology
Introduction
Hitoshi Hirata is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of audio signal technology, holding a total of 12 patents. His work has greatly influenced the way audio systems operate, particularly in the realm of FM audio systems.
Latest Patents
Hitoshi Hirata's latest patents include an innovative audio signal modulating system with pre-emphasis. This FM audio system features an FM tuner, a CD player, and a stereo modulator that modulates audio signals from the CD player to create a composite signal. This composite signal can be received by the FM tuner, allowing for high-quality audio reproduction. Additionally, a control circuit, such as an automatic level controller, is integrated to manage the audio signal level, ensuring that the sound quality remains intact.
Another notable patent is a notification system with voice in an audio system. This system also incorporates an FM tuner and a CD player, along with a stereo modulator. The notification system includes a controller that generates control signals in response to changes in the CD player's functions. A muting circuit is employed to attenuate the audio signal from the CD player based on these control signals. The resulting speech information is then added to the attenuated audio signal, allowing for a seamless reproduction of audio along with verbal notifications.
Career Highlights
Hitoshi Hirata is currently employed at Pioneer Electronic Corporation, where he continues to innovate in audio technology. His work has not only advanced the capabilities of audio systems but has also set new standards in sound quality and user interaction.
Collaborations
Hitoshi has collaborated with notable coworkers such as Akira Nishioka and Tatsuo Numata, contributing to various projects that enhance audio technology.
Conclusion
Hitoshi Hirata's contributions to audio signal technology through his patents and work at Pioneer Electronic Corporation highlight his role as a key innovator in the field. His inventions continue to shape the future of audio systems, ensuring high-quality sound experiences for users.