Company Filing History:
Years Active: 1999-2000
Title: Innovations of Christer Ostberg
Introduction
Christer Ostberg is a notable inventor based in Lulea, Sweden. He has made significant contributions to the field of telecommunications, particularly in the area of data transmission technologies. With a total of three patents to his name, Ostberg's work has had a considerable impact on enhancing communication systems.
Latest Patents
One of his latest patents is focused on orthogonal frequency division multiplex systems. This invention presents a method and apparatus designed to increase the maximum available bit rate on a single data link, thereby enhancing capacity within single cells. The patent describes how an orthogonal frequency division multiplex signal is filtered through a pulse shaping operation to suppress side lobes of the signal. Although this pulse shaping introduces known inter-symbol interference (ISI) and results in a loss of orthogonality between subcarriers, the receiver can overcome ISI by applying equalization to the signal, effectively addressing the loss of orthogonality.
Another significant patent by Ostberg is a method for synchronization of transmitter and receiver in mobile radio systems. This innovation is crucial for improving the efficiency and reliability of mobile communications.
Career Highlights
Throughout his career, Christer Ostberg has worked with prominent companies in the telecommunications sector, including Telia AB and Telia Research AB. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in mobile and data communication technologies.
Collaborations
Ostberg has collaborated with several talented individuals in his field, including Roger Larsson and Bo Engstrom. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Christer Ostberg's contributions to telecommunications through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the future of data transmission and mobile communication systems.