Jan Ingemar Swerup

Title: Jan Ingemar Swerup: Innovator in Mobile Communication Technology

Introduction

Jan Ingemar Swerup is a notable inventor based in Knivsta, Sweden. He has made significant contributions to the field of mobile communication technology, holding a total of 5 patents. His work focuses on enhancing the functionality and efficiency of mobile devices.

Latest Patents

One of Swerup's latest patents is a method and apparatus for keypad representation in a mobile communication device. This innovation allows keys to represent different values or functions based on the occurrence of a predetermined event. A detector is employed to identify when the event occurs, enabling the keys to be assigned to a different set of values or functions accordingly.

Another significant patent involves embedding data in a coded voice channel. In this invention, a digital input symbol is transmitted to a receiver by determining formant frequencies that correspond to the symbol. A pre-programmed addressable memory maps the digital input symbols onto corresponding speech units, which are then transmitted over a voice channel. This process may also include modifications based on a forward error correction code, affecting attributes such as volume and pitch.

Career Highlights

Jan Swerup is associated with Telefonaktiebolaget LM Ericsson (publ), a leading company in telecommunications. His work at Ericsson has allowed him to contribute to advancements in mobile communication technologies, making a lasting impact in the industry.

Collaborations

Swerup has collaborated with notable colleagues, including Björn Jonsson and Krister Törnqvist. These collaborations have fostered innovation and development in their respective fields.

Conclusion

Jan Ingemar Swerup is a distinguished inventor whose work in mobile communication technology has led to several important patents. His contributions continue to influence the evolution of mobile devices and communication systems.