1
Dennis L Workman: Video information bandwidth compression. Bell & Howell Company, Benoit Law Corporation, December 18, 1979: US04179709 (50 worldwide citation)

Methods and apparatus for video information bandwidth compression arrange the video information in image fields and subfields and provide for the subfields a system of coefficients having a first coefficient indicative of average subfield luminance as to any given subfield and including a selected n ...


2
Dennis L Workman: Bandsplitter systems. Bell & Howell Company, Benoit Law Corporation, January 1, 1980: US04181822 (18 worldwide citation)

Methods and apparatus for partitioning a wide-band signal into a plurality of separate narrow-band signals partition the wide-band signal into a low-frequency component and a high-frequency component at least partially above the low-frequency component in the spectrum of the wide-band signal. The lo ...