Company Filing History:
Years Active: 2004-2005
Title: Kumiko Maruo: Innovator in xDSL Technology
Introduction
Kumiko Maruo is a prominent inventor based in Kawasaki, Japan. She has made significant contributions to the field of telecommunications, particularly in the development of xDSL technology. With a total of two patents to her name, Maruo has demonstrated her expertise and innovative spirit in her work.
Latest Patents
Maruo's latest patents include an xDSL transceiver and an ADSL modem. The xDSL transceiver is designed to transmit a DMT-modulated signal through a subscriber line, featuring a transmission unit and a receiving unit. It also incorporates an echo signal suppression unit that effectively matches the phase between the transmission and receiving signals, enhancing communication quality. The ADSL modem, on the other hand, is engineered to connect to a telephone line, ensuring stable high-speed data communication even when multiple ADSL modems are connected. This modem includes an ADSL band signal detector that identifies whether the ADSL frequency band is occupied, allowing for efficient signal management.
Career Highlights
Kumiko Maruo is currently employed at Fujitsu Corporation, where she continues to innovate and contribute to advancements in telecommunications technology. Her work has been instrumental in improving data communication systems, making them more reliable and efficient.
Collaborations
Maruo has collaborated with notable colleagues such as Takashi Sasaki and Masato Hori, further enhancing her contributions to the field through teamwork and shared expertise.
Conclusion
Kumiko Maruo stands out as a key figure in the development of xDSL technology, with her patents reflecting her commitment to innovation. Her work at Fujitsu Corporation and collaborations with other professionals underscore her impact on the telecommunications industry.