This inventor holds 2 USPTO granted patents. Top assignees: Flintab Ab, Trancom Ab. Active years: 1983-1985.
Company Filing History:
Years Active: 1983-1985
Title: Krister Karlstrom: Innovator in Vehicle Communication Systems
Introduction
Krister Karlstrom is a notable inventor based in Stockholm, Sweden. He has made significant contributions to the field of vehicle communication systems, holding 2 patents that showcase his innovative ideas and technical expertise.
Latest Patents
One of his latest patents is a vehicle locating system. This system involves communicating location-representative signals to vehicles by modifying existing traffic detector stations that utilize an inductive coil embedded in the roadway. The circuitry generates a carrier signal modulated according to a modulating signal representative of the location of the associated traffic detector station. A transformer couples the modulated carrier signal into the existing inductive coil, establishing a magnetic field above the roadway that is modulated by the location-representative signals. Vehicles equipped with inductive coils can sense these modulated magnetic fields and extract the location-representative signals, which can then be transmitted to a central dispatching station.
Another significant patent is for an apparatus for communicating with a fleet of vehicles. This communication system features multiple base stations that communicate with several associated mobile stations in a well-disciplined single-channel time division multiplexing arrangement. Each base station communicates with its mobile stations in a unitary communication cycle, with time segments of variable size allotted for specific purposes. The mobile stations are synchronized periodically by the base station, which transmits cycle timing information at the beginning of each cycle. This allows the mobile stations to determine when various cycle segments begin and end. A central traffic control center mediates the operation of the system, ensuring that communication cycles of adjacent base stations occur sequentially to avoid interference.
Career Highlights
Throughout his career, Krister has worked with notable companies such as Trancom AB and Flintab AB. His experience in these organizations has contributed to his development as an inventor and innovator in the field of vehicle communication systems.
Collaborations
Krister has collaborated with various professionals in his field, including his coworker Rolf Fabricius-Hansen. Their joint efforts have likely contributed to the advancements in the technologies they have developed.
Conclusion
Krister Karlstrom is a distinguished inventor whose work in vehicle communication systems has led to innovative patents that enhance the efficiency and functionality of vehicle locating and communication technologies. His contributions continue to influence the industry and pave the way for future advancements.