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Wednesday, 26 January 2011

Unknown inventors

Richard H.Frienkel

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Richard H. Frenkiel is an American engineer, known for development of cellular telephone networks.
Born (March 4, 1943) in Brooklyn, New York, Frenkiel earned a bachelor's degree in mechanical engineering at Tufts University and earned a master's degree at Rutgers University in 1965. Beginning in 1963, he worked for Bell Labs where he first designed recorded announcement machines. In late 1965, he was invited to get involved in the early planning of cellular telephone systems along with Bell Labs engineers Joel S. Engel and Philip T. Porter, an effort which lasted more than sixteen years. They worked on cell geometry, vehicle locating, and call handoff. In 1971 Porter, Engel, and Frenkiel authored a cellular system feasibility study and proposal that was submitted to the Federal Communications Commission (FCC)

First Cell phone

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Though the basics are provided by Richard H Frienkel but credit of inventing cell phone goes to Martin Cooper.Martin Cooper (born December 26, 1928 in Chicago, Illinois, USA) is a former Motorola vice president and division manager of Ukrainian ethnicity who in the 1970s led the team that developed the handheld mobile phone (as distinct from the car phone).Cooper is the CEO and founder of ArrayComm, a company that works on researching smart antenna technology and improving wireless networks, and was the corporate director of Research and Development for Motorola.

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