Edward W. Kellogg
Encyclopedia
Edward W. Kellogg born in Washington, a graduate of Phillips Academy
, Andover (Class of 1902), was the joint inventor of the moving coil
loudspeaker
in 1925 along with Chester W. Rice
at General Electric
, and independently by Edward Wente at Bell Labs
. Kellogg also patented an electrostatic loudspeaker in 1934.
Kellogg was the first director of the GE Advanced Technology Laboratory in Schenectady, New York
, which later became a part of RCA Victor in Camden, New Jersey
(and is now part of Lockheed Martin
). Kellogg also was also the first head of their Photophone
development group.
Phillips Academy
Phillips Academy is a selective, co-educational independent boarding high school for boarding and day students in grades 9–12, along with a post-graduate year...
, Andover (Class of 1902), was the joint inventor of the moving coil
Coil
A coil is a series of loops. A coiled coil is a structure in which the coil itself is in turn also looping.-Electromagnetic coils:An electromagnetic coil is formed when a conductor is wound around a core or form to create an inductor or electromagnet...
loudspeaker
Loudspeaker
A loudspeaker is an electroacoustic transducer that produces sound in response to an electrical audio signal input. Non-electrical loudspeakers were developed as accessories to telephone systems, but electronic amplification by vacuum tube made loudspeakers more generally useful...
in 1925 along with Chester W. Rice
Chester W. Rice
-Biography:He was the joint inventor in 1925 of the moving coil loudspeaker along with Edward W. Kellogg.-External links:*...
at General Electric
General Electric
General Electric Company , or GE, is an American multinational conglomerate corporation incorporated in Schenectady, New York and headquartered in Fairfield, Connecticut, United States...
, and independently by Edward Wente at Bell Labs
Bell Labs
Bell Laboratories is the research and development subsidiary of the French-owned Alcatel-Lucent and previously of the American Telephone & Telegraph Company , half-owned through its Western Electric manufacturing subsidiary.Bell Laboratories operates its...
. Kellogg also patented an electrostatic loudspeaker in 1934.
Kellogg was the first director of the GE Advanced Technology Laboratory in Schenectady, New York
Schenectady, New York
Schenectady is a city in Schenectady County, New York, United States, of which it is the county seat. As of the 2010 census, the city had a population of 66,135...
, which later became a part of RCA Victor in Camden, New Jersey
Camden, New Jersey
The city of Camden is the county seat of Camden County, New Jersey. It is located across the Delaware River from Philadelphia, Pennsylvania. As of the 2010 United States Census, the city had a total population of 77,344...
(and is now part of Lockheed Martin
Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....
). Kellogg also was also the first head of their Photophone
Photophone
The photophone, also known as a radiophone, was invented jointly by Alexander Graham Bell and his then-assistant Charles Sumner Tainter on February 19, 1880, at Bell's 1325 'L' Street laboratory in Washington, D.C...
development group.
External links
- Rice-Kellogg loudspeaker design "Production of Sound" (improved electrostatic design), filed September 1929, issued December 1934
- Edward W. Kellogg (1955), "History of Sound Motion Pictures", Journal of the SMPTE