Location History:
- Solna, SE (1999 - 2000)
- Akersberga, SE (2013)
Company Filing History:
2 out of 25,688 
1 out of 228 
Years Active: 1999-2013
Title: The Innovations of Stefan Barkaro
Introduction
Stefan Barkaro is a notable inventor based in Solna, Sweden. He has made significant contributions to the field of telecommunications, holding a total of 3 patents. His work focuses on enhancing communication systems, particularly in the areas of echo cancellation and signal generation.
Latest Patents
One of Barkaro's latest patents is an "Echo canceling arrangement." This invention involves a line driver/receiver circuit designed to improve the quality of transmitted signals by canceling out unwanted echoes. The arrangement connects the output terminals of the line driver to a load using equal complex sense impedances, which are much smaller than the load impedance. This innovative approach allows for better matching of the load impedance and enhances the performance of the receiver.
Another significant patent is the "Method and apparatus for generating a ringing signal." This invention pertains to generating a ringing signal of predetermined frequency and shape in a telephone network. The method involves directly injecting the ringing signal into the DC levels of the A- and B-wires, utilizing a voltage difference converting device and a signal generating device to create the desired ringing signal. This invention improves the efficiency and effectiveness of signaling in telecommunication systems.
Career Highlights
Throughout his career, Stefan Barkaro has worked with prominent companies in the telecommunications industry. He has been associated with Telefonaktiebolaget LM Ericsson and Lantiq Deutschland GmbH. His experience in these organizations has contributed to his expertise and innovative capabilities in the field.
Collaborations
Barkaro has collaborated with notable professionals, including Torbjorn Ivar Randahl and Berndt Wallin. These collaborations have likely enriched his work and led to further advancements in his inventions.
Conclusion
Stefan Barkaro's contributions to telecommunications through his patents and collaborations highlight his innovative spirit and dedication to improving communication technologies. His work continues to influence the industry and pave the way for future advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.