Company Filing History:
Years Active: 1998-2000
Title: Shigehide Sawayanagi: Innovator in Mobile Communication Technology
Introduction
Shigehide Sawayanagi is a notable inventor based in Yokosuka, Japan. He has made significant contributions to the field of mobile communications, particularly in the area of control channel searching methods. With a total of 3 patents to his name, his work has had a considerable impact on the efficiency of mobile communication systems.
Latest Patents
One of his latest patents is a method for searching a control channel in a mobile station. This innovative approach allows for the power supply of the receiving circuit to be turned off during a break time of receiving level measurements. In the first control channel selection mode, all control channels are divided into multiple groups. The receiving levels of these channels are measured group by group, intermittently and sequentially. This process is repeated until a control channel with a receiving level equal to or greater than a predetermined value is detected. Once this threshold is met, the receiving levels of all control channels are measured in a second selection mode.
Career Highlights
Shigehide Sawayanagi has been instrumental in advancing mobile communication technologies through his inventive methods. His work at NTT Mobile Communications Network, Inc. has positioned him as a key player in the industry. His patents reflect a deep understanding of mobile communication systems and their operational efficiencies.
Collaborations
Throughout his career, Sawayanagi has collaborated with talented individuals such as Hidetoshi Yazaki and Kouji Chiba. These partnerships have fostered innovation and have contributed to the successful development of his patented technologies.
Conclusion
Shigehide Sawayanagi's contributions to mobile communication technology are noteworthy. His innovative methods for control channel searching have enhanced the efficiency of mobile stations. With a solid foundation of patents and collaborations, he continues to be a significant figure in the field of telecommunications.