H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/61
H04N 11/00 (2006.01)
Patent
CA 1115829
COLOR TELEVISION RECEIVING SYSTEM UTILIZING INFERRED HIGH FREQUENCY SIGNAL COMPONENTS TO REDUCE COLOR INFIDELITIES IN REGIONS OF HIGH COLOR SATURATION ABSTRACT OF THE DISCLOSURE A color television receiving system for NTSC-type signals is provided with signal processing circuitry and methods for reducing the visibility of color infidelities, such as over-modulation, rectification, desaturation, and inadequate highs, which are visible in regions of high color saturation. Such infidelities are substantially reduced by effectively supple- menting either the chrominance or the primary color signals with inferred high frequency chrominance components derived from signal information discovered to be inherently available in NTSC-type signals and their implicit constraints. Specifically, it has been found that in regions of high color saturation, high frequency chrominance components can be scaled from the high frequency portion of the received monochrome signal in accordance with the respective ratios of the value of the received reduced bandwidth chrominance signal to the value of a comparable low frequency component of the received monochrome signal, Alternatively, inferred high frequency primary color components can be analogously derived. A variety of specific circuit embodiments and methods can be used to derive suitable inferred high frequency components.
306582
Macrae & Co.
Quadricolor Technology L.p.
LandOfFree
Color television receiving system utilizing inferred high... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Color television receiving system utilizing inferred high..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color television receiving system utilizing inferred high... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-864568