This inventor holds 4 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1997-1998.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1997-1998
Title: Michitaka Sisido: Innovator in Noise Reduction Technology
Introduction
Michitaka Sisido is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of noise reduction technology, holding a total of 4 patents. His innovative work focuses on improving communication devices by minimizing unwanted noise.
Latest Patents
One of his latest patents is a noise removing apparatus using a microphone. This invention features an arrangement that includes a microphone and an acoustic high-pass filter positioned in front of it. The filter consists of a combination of acoustic resistance, compliance, and inertance. The acoustic resistance is made from nonwoven fabric, while the compliance is a cavity, and the inertance is a thin cavity connected to the main cavity. This design effectively reduces unpleasant noise caused by low-frequency high-pressure air streams, such as a speaker's breath hitting the mouthpiece of a telephone.
Another notable patent is for a telephone set in which an echo signal is effectively canceled. This invention includes a receiver and a loudspeaker, with a switch circuit that selects the supply of a reception speech signal to either the receiver or the loudspeaker. A first adaptive echo canceller produces a pseudo echo signal based on the reception speech signal. The controller optimizes the operation of the echo canceller in response to a selection signal, ensuring clear communication.
Career Highlights
Michitaka Sisido is associated with NEC Corporation, a leading technology company known for its innovations in telecommunications and information technology. His work at NEC has allowed him to develop cutting-edge solutions that enhance the performance of communication devices.
Collaborations
One of his notable coworkers is Toshio Yoshida, with whom he has collaborated on various projects aimed at advancing noise reduction technologies.
Conclusion
Michitaka Sisido's contributions to noise reduction technology have significantly impacted the telecommunications industry. His innovative patents demonstrate his commitment to improving communication quality and user experience.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile