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Jesse Eugene Russell (born April 26, 1948) is an American inventor. He was trained as an electrical engineer at Tennessee State University and Stanford University, and worked in the field of wireless communication for over 20 years.
Wireless communication (or just wireless, when the context allows) is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves.
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 a Manhattan sidewalk to his counterpart at competitor Bell Labs.
Before the discovery of electromagnetic waves and the development of radio communication, there were many wireless telegraph systems proposed and tested. [4] In April 1872 William Henry Ward received U.S. patent 126,356 for a wireless telegraphy system where he theorized that convection currents in the atmosphere could carry signals like a telegraph wire. [5]
the first wireless telephone message in the history of the world. the apparatus used in sending the message was the photophone invented by alexander graham bell inventor of the telephone this plaque was placed here by alexander graham bell chapter telephone pioneers of america march 3, 1947 the centennial of dr. bell's birth
The electric telephone was invented in the 1870s, based on earlier work with harmonic (multi-signal) telegraphs. The first commercial telephone services were set up in 1878 and 1879 on both sides of the Atlantic in the cities of New Haven, Connecticut in the US and London, England in the UK.
Wireless communication Irving " Al " Gross ( / ɡ r oʊ s / ; February 22, 1918 – December 21, 2000) was a pioneer in mobile wireless communication . He created and patented many communications devices, specifically in relation to an early version of the walkie-talkie , [ 1 ] Citizens' Band radio , [ 2 ] the telephone pager [ 2 ] and the ...
Nathan Beverly Stubblefield [1] (November 22, 1860 – March 28, 1928) was an American inventor best known for his wireless telephone work. Self-described as a "practical farmer, fruit grower and electrician", [2] he received widespread attention in early 1902 when he gave a series of public demonstrations of a battery-operated wireless telephone, which could be transported to different ...