Location History:
- Saltsjöbaden, SE (2003 - 2004)
- Hagersten, SE (2003 - 2006)
- Stockholm, SE (2006)
- Saltsjobaden, SE (1995 - 2008)
Company Filing History:
5 out of 25,736 
2 out of 2 
2 out of 20,382 
Years Active: 1995-2008
Title: The Innovative Contributions of Lars Egnell
Introduction
Lars Egnell is a notable inventor based in Saltsjöbaden, Sweden. He has made significant contributions to the field of telecommunications, particularly in the development of optical networks. With a total of 10 patents to his name, Egnell's work has had a profound impact on the efficiency and reliability of data transmission.
Latest Patents
One of Egnell's latest patents is a receiver transponder designed for protected networks. This innovative device is utilized in optical add and drop multiplexers (OADMs) within short haul type networks. The receiver transponder is capable of receiving light signals from two opposite directions on input fibers. The optical input signals are converted to electrical signals by optical-to-electrical (O/E) converters. The output terminals of these converters are connected to an electronic switch, which facilitates protection switching in a protected ring type network. The output signal from the switch can be monitored before it enters a reshaping circuit. In this circuit, the signal is reshaped, cleansed from a supervisory channel, and adjusted to a proper drive level for a laser. The optical signal from the laser can travel significant distances through fiber optics, ensuring reliable detection even with various forms of attenuation. The reshaping circuit can also provide an electrical output signal. Egnell's design allows the converters to protect one another and detect channel signal power and supervisory channels at electric outputs. The laser used can be a low-cost type, as it is typically employed for moderate distance transmission.
Career Highlights
Throughout his career, Lars Egnell has worked with prominent companies in the telecommunications industry. Notably, he has been associated with Telefonaktiebolaget LM Ericsson and Cisco Systems (Sweden) Aktiebolag. His experience in these organizations has contributed to his expertise in developing advanced communication technologies.
Collaborations
Egnell has collaborated with several professionals in his field, including Bengt Johansson and Robert Batchellor. These collaborations have further enriched his work and innovations in telecommunications.
Conclusion
Lars Egnell's contributions to the field of telecommunications through his patents and career achievements highlight his role as a significant inventor. His innovative designs continue to influence the efficiency of optical networks and data transmission technologies.