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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]
Motorola Mobility was formed on January 4, 2011, after a split of Motorola, Inc. into two separate companies, with Motorola Mobility assuming the company's consumer-oriented product lines (including its mobile phone business, as well as its cable modems and pay television set-top boxes), while Motorola Solutions assumed the company's enterprise ...
A mobile phone or cell phone[ a] is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone ( landline phone ). The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which ...
AT&T, T-Mobile, Verizon, Boost Mobile, and uscellular also sell SIM cards through their retail channels, both in-store and online. The top five wireless providers operate nationwide wireless networks which cover most of the population in the United States, while smaller carriers provide native network coverage across selected regions of the ...
Bankruptcy in 2006, defunct in 2007. Grundig Mobile. Hagenuk Telecom GmbH. insolvency in 1997, mobile phone development and manufacturing business acquired by Telital in 1998 [9] Siemens Mobile. Acquired by BenQ Corporation in 2005 to form BenQ Mobile. Telefunken. Italy. Onda Mobile Communication.
Nokia continues to be a major patent licensor for most large mobile phone vendors. As of 2018, Nokia is the world's third-largest network equipment manufacturer. The company was viewed with national pride by Finns, as its mobile phone business made it by far the largest worldwide company and brand from Finland.
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