Douglas H. Ring
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Douglas H. Ring (March 28, 1907 in
Montana Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columb ...
– September 8, 2000 in Red Bank,
New Jersey New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delaware ...
) was one of the
Bell Labs Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984), then AT&T Bell Laboratories (1984–1996) and Bell Labs Innovations (1996–2007), is an American industrial Research and development, research and scientific developm ...
engineers that invented the cell phone. The history of cellular phone technology began on December 11, 1947 with an internal memo written by Douglas H. Ring in which he proposed development of a cellular telephone system by AT&T."The 1947 Paper That First Described a Cell-Phone Network"
Sep 16, 2011, Alexis C. Madrigal, The Atlantic Although Martin Cooper of
Motorola Motorola, Inc. () was an American multinational telecommunications company based in Schaumburg, Illinois, United States. After having lost $4.3 billion from 2007 to 2009, the company split into two independent public companies, Motorol ...
is considered the inventor of the first handheld cellular telephone and the first person to demonstrate to reporters a handheld cell phone call, Cooper's April 1973 call used cellular telephone technology invented and developed by Bell Labs engineers.


See also

*
History of mobile phones The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network. While the transmission of speech by signal has a long history, the first devices that were wireless, mobile, and ...
*
W. Rae Young William Rae Young, Jr. (October 30, 1915 – March 7, 2008) was one of the Bell Labs engineers that invented the cell phone. The history of cellular phone technology began on December 11, 1947 with a Bell Labs internal memo written by Douglas H ...
* Amos E. Joel, Jr.


References


Patents of Douglas H. Ring

* -- ''Volume Control Circuits'', filed May 26, 1934 * -- ''Oscillation Generator'', filed Apr 22, 1938 * -- ''Multiple Unit Steerable Antenna System'', filed July 14, 1939 * -- ''Frequency Adjustment of Resonant Cavities'', filed Sep 3, 1941 * -- ''Microwave Coupling System'', filed Mar 26, 1942 * -- ''Microwave Transmission System'', filed Dec 23, 1942 * -- ''Guided Wave Frequency Range'', filed Dec 30, 1948 * -- ''Reduction of Phase Distortion'', filed Aug 20, 1949 * -- ''Microwave Frequency Structure Using Hybrid Junctions'', filed Mar 6, 1951 * -- ''Reduction of Phase Distortion'', filed Sep 21, 1951 * -- ''Frequency Stabilized Oscillator'', filed Oct 1, 1953 * -- ''High Speed Microwave Switching Networks'', filed May 31, 1960


External links


1947 memo by Douglas H. Ring proposing hexagonal cells



Ring Family history


Further reading

* Brodsky, Ira. "The History of Wireless: How Creative Minds Produced Technology for the Masses" (Telescope Books, 2008) 1907 births 2000 deaths 20th-century American engineers 20th-century American inventors {{telecomm-stub