Company Filing History:
Years Active: 2023
Title: Tetsuo Watanabe: Innovator in Acoustic Technology
Introduction
Tetsuo Watanabe is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of acoustic technology, holding three patents that showcase his innovative spirit and technical expertise.
Latest Patents
Watanabe's latest patents include a filter generation apparatus and a recording medium. This apparatus features a coefficient calculation unit that performs Inverse Fast Fourier Transform (IFFT) on a frequency characteristic of a frequency domain filter. It calculates a filter coefficient of a linear phase Finite Impulse Response (FIR) filter. Additionally, it includes a conversion unit that transforms the filter coefficient into a minimum phase FIR filter. Another key aspect is the coefficient generation unit, which generates a filter coefficient of an approximation filter through cut-out processing and rounding processing performed by a window function. An error calculation unit is also present, which calculates the error of a frequency characteristic corresponding to the approximation filter. This is done in relation to the frequency characteristic of the frequency domain filter. Finally, a filter storage unit stores the filter coefficient as a new filter when the error is equal to or less than a predetermined threshold value.
Another significant patent is for an acoustic device that includes a first sound outputting device for input signals, a second outputting device for monaural signals, and a third sound outputting device for stereo components. This device generates a monaural signal based on left and right stereo signals in a low-frequency band. It also extracts stereo components for both channels based on high-frequency signals, combining them effectively to enhance sound quality.
Career Highlights
Watanabe is currently employed at Faurecia Clarion Electronics Co., Ltd., where he continues to innovate in the field of acoustic technology. His work has contributed to advancements in sound systems and audio devices, making them more efficient and effective.
Collaborations
Watanabe collaborates with Yasuhiro Fujita, a fellow innovator in the field. Their partnership has led to the development of cutting-edge technologies that push the boundaries of acoustic engineering.
Conclusion
Tetsuo Watanabe is a distinguished inventor whose work in acoustic technology has led to significant advancements in the industry. His patents reflect a deep understanding of sound engineering and a commitment to innovation.