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Martin Cooper (inventor) Martin Cooper (born December 26, 1928) is an American engineer. He is a pioneer in the wireless communications industry, especially in radio spectrum management, with eleven patents in the field. [2][3] On April 3, 1973, he placed the first public call from a handheld portable cell phone while working at Motorola, from ...
Creating the gamma-electric cell. Henry Thomas Sampson Jr. (April 22, 1934 – June 4, 2015) was an American engineer, inventor and film historian [1] who created the gamma-electric cell in 1972 — a device with the main goal of generating auxiliary power from the shielding of a nuclear reactor. He wrote wrote Blacks in Black and White: A ...
A DynaTAC 8000X; the first commercially available mobile phone from 1983. Electrical engineer Martin Cooper of Motorola made the first publicized handheld mobile phone call on a prototype DynaTAC model on April 3, 1973. This is a reenactment in 2007. The DynaTAC is a series of cellular telephones manufactured by Motorola from 1983 to 1994.
In the 1970s engineer Marty Cooper, an executive at Motorola, fought against archrival AT&T by leading a team that designed the cordless device that made possible the explosion in cellphones. Now ...
Our modern mobile era can trace its roots to 1973 and an engineer and inventor named Martin Cooper, who developed the first hand-held cellular phone. Mobile phones had been around since the 1940s ...
Martin Cooper photographed in 2007 with his 1972 handheld mobile phone prototype. Prior to 1973, mobile telephony was limited to phones installed in cars and other vehicles. [ 22 ] The first portable cellular phone commercially available for use on a cellular network was developed by E.F. Johnson and Millicom, Inc . [ 29 ]
Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone in 1876. Elisha Gray, 1876, designed a telephone using a water microphone in Highland Park, Illinois. Tivadar Puskás proposed the telephone switchboard exchange in 1876. Thomas Edison invented the carbon microphone which produced a strong telephone ...
Scenes from the film feature Richard Frenkiel returning to Bell Labs in Holmdel, New Jersey where the basic cellular technology was developed, Martin Cooper of Motorola explaining how he made the world's first call in public from a cellular phone and Jorma Ollila describing how Nokia pioneered the transition from analog to digital cell phones.