Dwight Isbell was a radio engineer, IEEE antennas and propagation fellow, and co-inventor of the Log-periodic antenna while a student at the University of Illinois under Raymond DuHamel.[2] The log periodic antenna made possible broadband reception of color television signals. He is notable for the invention of antenna, and the resulting lawsuits regarding the antenna.[3]
The invention of the antenna and the patents were widely ignored by Channel Master and Blonder-Tongue, and resulted in the precedent setting Blonder-Tongue doctrine of “judicial economy“, which bars defendants of patents from that have been previously ruled invalid (changing the Triplett v. Lowe precedent).
References
- ^ “Dwight Ellston Isbell Obituary ( May 23, 1929 – August 19, 2011 ) Peninsula Daily News”. Legacy.com.
- ^ ECE Alumni News. “Electrical and Computer Engineering Alumni News”, Volume XXXVIII, Summer 2004. Retrieved on May 6th, 2010.
- ^ Supreme Court Record. “BLONDER TONGUE V. UNIVERSITY OF ILLINOIS FOUND., 402 U. S. 313”, US Supreme Court, 1971. Retrieved on May 6th, 2010.