Ұялы телефонның әкесі: Мартин Купер өмірі мен жетістіктері

American engineer (born 1928)

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. 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. Cooper reprised the first handheld cellular mobile phone (distinct from the car phone) in 1973 and led the team that re developed it and brought it to market in 1983. He is considered the "father of the (handheld) cell phone". Cooper is co founder of numerous communications companies with his wife and business partner Arlene Harris; He is co founder and current Chairman of Dyna LLC, in Del Mar, California. Cooper also sits on committees supporting the U. S. Federal Communications Commission and the United States Department of Commerce. In 2010, Cooper was elected a member of the National Academy of Engineering for leadership in the creation and deployment of the cellular portable hand held telephone.

Cooper was born in Chicago to Ukrainian Jewish immigrants. He graduated from Illinois Institute of Technology (IIT) in 1950 and served as a submarine officer during the Korean War. By the early 1970s, Cooper headed Motorola's communications systems division. He believed the cellular phone should be a "personal telephone – something that would represent an individual so you could assign a number; not to a place, not to a desk, not to a home, but to a person." Cooper himself later said that his actual inspiration was Dick Tracy's wrist radio. Top management at Motorola supported Cooper's mobile phone concept, investing $100 million between 1973 and 1993 before any revenues were realized. Cooper assembled a team that designed and assembled a product in less than 90 days. That original handset, called the DynaTAC 8000x (DYNamic Adaptive Total Area Coverage) weighed 2.5 pounds (1.1 kg), measured 10 inches (25 cm) long and was dubbed "the brick" or "the shoe" phone. A very substantial part of the DynaTAC was the battery, which weighed four to five times more than a modern cell phone. John Francis Mitchell, Motorola's Chief of Portable Communication Products (and Cooper's Manager and Mentor) and the engineers who worked for Cooper and Mitchell are also named on the patent. On April 3, 1973, Cooper and Mitchell demonstrated two working phones to the media and to passers by prior to walking into a scheduled press conference at the New York City Hilton in midtown Manhattan. Standing on Sixth avenue near the Hilton, Cooper made the first handheld cellular phone call in public from the prototype DynaTAC. The call connected him to a base station Motorola had installed on the roof of the Burlington House (now the AllianceBernstein Building) and into the AT&T land line telephone system. "Joel, this is Marty. I'm calling you from a cell phone, a real handheld portable cell phone." That public demonstration landed the DynaTAC on the July 1973 cover of Popular Science Magazine. GreatCall is the first complete end to end value added service provider in the cellular industry to focus on simplicity with its primary emphasis on senior citizens.

In 1992 Cooper co founded Arraycomm a developer of software for mobile antenna technologies. Under his leadership, the Company grew from a seed funded startup in San Jose, California, into the world leader in smart antenna technology with 400 patents issued or pending, worldwide.

Cooper joined the board of directors from 2015 to 2019.

Cooper found that the ability to transmit different radio communications simultaneously and in the same place has grown at the same pace since Guglielmo Marconi's first transmissions in 1895. This led Cooper to formulate the Law of Spectral Efficiency, otherwise known as Cooper's Law. The law states that the maximum number of voice conversations or equivalent data transactions that can be conducted in all of the useful radio spectrum over a given area doubles every 30 months.