Yasushi Katsumata

Title: Innovations of Yasushi Katsumata

Introduction

Yasushi Katsumata is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of technology, particularly in data distribution and audio processing. With a total of 3 patents to his name, Katsumata continues to push the boundaries of innovation.

Latest Patents

One of his latest patents is a data distributing apparatus and terminal apparatus for data distribution. This invention involves a contents database where data of contents enciphered by a C key is stored and provided for a contents server. The contents data enciphered by the C key are further enciphered by an M key and sent to a user machine. In the user machine, the contents data enciphered by the C key are stored in a storage device. Upon reproduction, the contents data enciphered by the C key from the storage device are sent to an enciphering/decoding processing unit, decoded, and charging is performed in accordance with the C key. A dynamic authenticating code, which changes over time, is added to the C key.

Another significant invention by Katsumata is a microphone apparatus. This apparatus includes a microphone for producing a desired audio signal and features an adaptive signal processing section. This section is supplied with a reference signal based on a vibration detected signal from a vibration detecting circuit. This circuit responds to vibrations from a vibration generating source, which are picked up by the microphone and become unnecessary noise signals. The adaptive signal processing section reduces the noise signal contained in the audio signal.

Career Highlights

Yasushi Katsumata is currently employed at Sony Corporation, a leading company in the technology and entertainment industry. His work at Sony has allowed him to develop innovative solutions that enhance user experience and improve audio quality.

Collaborations

Katsumata has collaborated with several talented individuals in his field, including Masashi Ohkubo and Tooru Sasaki. These collaborations have contributed to the success of his inventions and the advancement of technology.

Conclusion

Yasushi Katsumata is a prominent inventor whose work in data distribution and audio processing has made a significant impact in the technology sector. His innovative patents and collaborations with other professionals highlight his dedication to advancing technology.