Charles Coleman (engineer)

Charles Hubert Coleman Jr. (October 28, 1926 – July 13, 2005) was an accomplished electronic engineer and a pioneer in the field of color video tape recording and later in high data-rate digital tape recording. He was also an amateur explorer and avid pilot.[1][2][3]

Chuck Coleman
Charles Hubert Coleman Jr.
Born(1926-10-28)October 28, 1926
Washington, D.C.
DiedJuly 13, 2005(2005-07-13) (aged 78)
San Jose, California
OccupationEngineer, Inventor
EmployerUS Marines, WBKB, CBS Television, Ampex
AwardsIEEE Vladimir K. Zworykin Award, 1970
SMPTE David Sarnoff Gold Medal, 1970

Early life

Coleman was born on October 28, 1926 in Washington, DC and, as one of three children, grew up in Charleston, Illinois. His father was a professor of history at a state teacher's college.[1] On his 17th birthday in October 1943, he joined the US Marines. Following boot camp, he was shipped to the Pacific and spent the remainder of the war teaching young Marines how to be radio technicians.[1] Upon discharge in 1946, he joined WBKB-TV (now WBBM) in Chicago. In 1953, WBKB-TV was purchased by CBS Television.[2] At CBS he quickly became a pioneer in the brand new field of video tape recording. Coleman invented Autotec[4][5] time base correction and applied it to improve the quality of the black and white TV broadcasts from WBKB[6]

Career at Ampex

By 1960, engineers at Ampex Corporation in had recognized the superior quality of the recorded TV images being shown on a certain Chicago TV station (WBKB).[1] Coleman was quickly lured to join Ampex in Redwood City, California where he spent the rest of his career on perfecting video tape recording[7] and pushing the boundaries of high data-rate tape-recording.[8] Coleman made many inventions[9][10] and received many accolades for his work. He received both the SMPTE David Sarnoff Gold Medal[11] and the IEEE Vladimir K. Zworykin Award in 1970[2] and, subsequently, the Alexander M. Poniatoff Award at Ampex in 1971[12], for his contributions to color video tape recording. Coleman was also the driving force behind the Digital Cassette Recording System.[13], Ampex' most successful digital product [14][15][16]

Other interests
Charles & Alyce Coleman with Cessna at Barker Creek Ranch looking East to Toquima Mts.

Charles Coleman was also an explorer, rancher, aviation enthusiast and avid pilot. He and his wife, Alyce, flew their Cessna from California to explore King William Island a remote, uninhabited island deep in the Arctic.[1][2] Barrels of gasoline had to be staged for the last portion of the journey. They landed successfully on a stretch of beach and upon exploring the island found a cache of British uniform metal grommets later confirmed to be from the doomed Franklin expedition (1846-1848).

Coleman purchased a property on Barker Creek near Round Mountain, Nevada, where he built an impressive off-grid ranch-house running off hydro and solar power.[1] Finally, he built his own airstrip[3] and hangar[17] so he was able to conveniently land his Cessna directly at his ranch.
Coleman died of kidney failure on July 13, 2005 aged 78. He was preceded by his wife, Alyce, in 2000. His nephew, the composer, also called Charles Coleman.[18], was a frequent visitor to Barker Creek Ranch[1]

gollark: There are thousands of people there who could have access to them!
gollark: Google is a big company!
gollark: Again, *why do you actually trust them*?
gollark: Also browser history and stuff.
gollark: RANDOM RECORDINGS OF YOU AND LOCATION DATA ARE VERY SENSITIVE.

References
  1. "Charles Coleman". www.earlytelevision.org.
  2. "Charles H. Coleman - Engineering and Technology History Wiki". ethw.org.
  3. "Barker Creek Ranch Airstrip Nevada Airport Information". FunPlacesToFly.com.
  4. Broadcast Engineering, March 1961, page 42
  5. "Google Patents". patents.google.com.
  6. "Magnetbandmuseum - Sie sind im Bereich: Timebase Correction". www.magnetbandmuseum.info.
  7. "Tonbandmuseum - Sie sind im Bereich: Ampex Story Teil 6". www.tonbandmuseum.info.
  8. Wood, R.; Petersen, D. A.; Lindholm, D. A.; Coleman, C. H. (June 1, 1985). "High data rate magnetic recording in a single channel". Journal of the Institution of Electronic and Radio Engineers. 55 (6): 229–236. doi:10.1049/jiere.1985.0075 – via digital-library.theiet.org.
  9. "Charles H. Coleman, Jr. Inventions, Patents and Patent Applications - Justia Patents Search". patents.justia.com.
  10. "Google Patents". patents.google.com.
  11. "Charles Coleman Honored For Color‐Video Inventions". September 28, 1970 – via NYTimes.com.
  12. Abramson, Albert (August 15, 2003). "The history of television, 1942 to 2000". McFarland & Co., Publishers – via Open WorldCat.
  13. "Ampex Digital Cassette Recording System (DCRS)" (PDF).
  14. "AMPEX History".
  15. "Overview of the prototype of the first commercial PRML channel | 102788145 | Computer History Museum". www.computerhistory.org.
  16. "Ampex shows heavy-duty cassette recorders". Flightglobal.com. February 25, 1998.
  17. "AOPA Airports". www.aopa.org.
  18. "Charles Coleman". classicalmatters.com.
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