Location History:
- Wako, JP (1995 - 1996)
- Saitama-ken, JP (2003)
Company Filing History:
2 out of 10,092 
1 out of 937 
1 out of 832,880 Years Active: 1995-2003
Title: Akira Suto: Innovator in Noise-Canceling Technology
Introduction
Akira Suto is a notable inventor based in Wako, Japan, recognized for his contributions to noise-canceling technology. With a total of 3 patents, Suto has made significant advancements in methods and apparatuses that enhance vehicle interior noise prediction and cancellation.
Latest Patents
One of Suto's latest patents is a method of and apparatus for predicting vehicle interior noise. This innovative approach involves mounting a jig on each of the four wheels of a vehicle, which is then struck in three orthogonal directions. A microphone inside the vehicle measures the sound pressure generated by the exciting force. An FFT analyzer operates a frequency response function from the exciting force to the sound pressure. In a drum testing machine, a tire subject to noise prediction is mounted on a shaft, rotated, and the axial force in three orthogonal directions is measured. The axial force signal is input to the FFT analyzer, which operates the auto power spectrum in the three orthogonal directions and the cross power spectrum between two different axial directions. The frequency response functions are synthesized with the auto power and cross power spectrums, leading to the operation of the power spectrum of the road noise.
Another significant patent is a noise-canceling apparatus. This device includes a canceling-sound generating source that outputs a canceling sound, along with a sensor that senses a composite sound at a noise-canceling point. The noise-canceling controller generates a noise-canceling signal through adaptive signal processing to cancel out the noise at the designated point. A frequency-characteristic correcting unit is also included, which has a frequency characteristic that is substantially symmetrical about a 0 dB line, relative to the frequency characteristic of the canceling-sound propagation system.
Career Highlights
Throughout his career, Akira Suto has worked with prominent companies such as Honda and Alpine Electronics. His experience in these organizations has allowed him to refine his skills and contribute to the development of innovative technologies in the automotive industry.
Collaborations
Suto has collaborated with notable individuals in his field, including Masaichi Akiho and Kunio Miyauchi. These partnerships have fostered a creative environment that has led to the advancement of noise-canceling technologies.
Conclusion
Akira Suto's work in noise-cancel