Friedhelm hillebrand biography definition

German engineer

Friedhelm Hillebrand is a German engineer who has been influential in setting mobile telecommunications standards.

Hillebrand is one of the inventors of the SMS,^[1][2] as he and Frenchman Bernard Ghillebaert created the concept for the service in ^[3] As chairman of the non-voice services committee for the Global System for Mobile Communications standard in , he conducted experiments to determine the length needed for text messages and found that characters was sufficient.^[3] This subsequently became the basis for the character limit now used by Twitter.^[3][4] Hillebrand was inducted into the Wireless Hall of Fame in for his accomplishments in the wireless industry.^[5]

Hillebrand was born in Warstein in , and as a child, was active in amateur radio.^[6] He gained a master's degree in telecommunications in , then started his career with the German post office, w