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The Philips Electronics company has received all of the credit and a
patent for their work on the "philips color seporation prism." However: Work I performed in th late 1960's invalidated the "Philips
Patent." In the late 1960's I invented what I thought was a new & unique
internal airgap color seporation prism for color television.
I soon found out that Philips had alredy patented the idea and therefore
I could not receive another patent for this concept. However: I also
discovered that this same color seporation technique was first used in
the late 1800's with three sheets of B&W photographic plates for color
photography. This patent was missed when Philips did their patent
search and applied for their patent, thus: Philips was granted their
patent erroniously. I designed and used several "Philips" like color
seporation prism's in broadcast quality color television cameras during
the late 1960's and early 1970's while I worked at a company known as "TELEMATION." We never paid Philips a penny in royalties. Philips
legal dept. demanded royalties from us but when we showed them the late
1800's patent Philips dropped the suit.
Joseph Labrum

The Cable Center

June 1990
Les Read
Position at time of interview: HBO, Director of Special Projects and Promotions, Interviewer: E. Stratford Smith
...I was involved with one of the first weather machines in Great Falls, Montana with a company called Telemation run by Lyle Keys. Lyle had this neat little camera that would go back and forth. I was able to talk to Pacific Northwest- -I'm getting way ahead of myself on this one. We brought all the cable operators into Great Falls, Montana, which was a new system and we showed them at the same time this new Telemation unit. It was the first one operating on that system.