Company Filing History:
2 out of 149 
2 out of 29,302 
1 out of 25,721 
Years Active: 1997-2010
Title: Franz-Josef Hagmanns: Innovator in Radio Signal Technology
Introduction
Franz-Josef Hagmanns is a notable inventor based in Backnang, Germany. He has made significant contributions to the field of radio signal technology, holding a total of 5 patents. His work focuses on improving the efficiency and accuracy of radio signal transmission and reception.
Latest Patents
Hagmanns' latest patents include an "Apparatus for monitoring non-linear distortions of radio signals and a method therefor." This invention features a transmitter designed to transmit radio signals, which comprises a digital signal source, a compensation unit, two digital-to-analogue converters, an analogue modulator, an amplifier, and an antenna connected to the amplifier. Additionally, the transmitter includes a front-end unit connected to an estimator, which comprises a mixer operably connected to a local oscillator, an analogue-to-digital converter for processing signals received from the mixer, and a first digital filter for converting signals to a baseband signal. An adaptive digital filter is also included to time-synchronize its output signal to a reference signal and to remove linear distortions from the signal received from the first digital filter.
Another significant patent is the "Calibration method and arrangement." This method calibrates a transmitter and/or sender for controlling a beam-forming network by dividing each control signal into multiple frequency segments. The control signal of each frequency segment is multiplied by complex coefficients to ensure that the transmitter output signals are identical to the respective control signals after passing through a reference receiver. This method allows for consistent beam characteristics in both transmission and reception.
Career Highlights
Throughout his career, Franz-Josef Hagmanns has worked with prominent companies in the technology sector, including Ant Nachrichtentechnik GmbH and Robert Bosch GmbH. His experience in these organizations has contributed to his expertise in radio signal technology and innovation.
Collaborations
Hagmanns has collaborated with notable colleagues such as Thomas Alberty and Waldemar Hauk. These partnerships have likely enhanced his work and contributed to the development of his patents.
Conclusion
Franz-Josef Hagmanns is a distinguished inventor whose work in radio signal technology has led to several important patents. His innovative approaches to monitoring and calibrating radio signals continue to influence the field.