Everyday, we use cellphones to talk to family, friends, colleagues. It seems that we cannot live without cellphones. But do you know who made it possible? I do not, either, until I read a news online at nytiimes.com: Amos E. Joel Jr., Cellphone Pioneer, Dies at 90. It is a pity that we know his name after he passed away.
Amos E. Joel Jr., an inventor whose switching device opened the way for the cellular phone business, died Oct. 25 at his home in Maplewood, N.J. He was 90.
Mr. Joel received more than 70 patents, but he was perhaps best known for No. 3,663,762, a 1972 patent that allows a cellphone user to make an uninterrupted call while moving from one cell region to another. “Without his invention, there wouldn’t be all these people walking around with cellphones,” said Frank Vigilante, who was one of Mr. Joel’s supervisor at Bell Labs. “He really allowed that business to form and to be a business.”
for more information, please visit the link above to nytimes.com.