Chrominance signal frequency converter as for a pix-in-pix telev

Details Chrominance signal frequency converter as for a pix-in-pix telev Chrominance signal frequency converter as for a pix-in-pix telev

1986-08-29

1987-12-08

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358183, H04N 5265

Patent

active

047121300

ABSTRACT:
A pix-in-pix television signal processing system develops a composite video pix-in-pix signal representing a reduced-size auxiliary image insert in a full-sized main image. The auxiliary video signal is separated into luminance and chrominance components by filtering circuitry. The luminance signal is subsampled in a ratio of one to four and the chrominance signal, which is composed of two color difference signals modulating quadrature phase related subcarrier signals, is applied to circuitry which interpolates between selected pairs of samples to develop a frequency converted chrominance signal, representing the two quadrature phase related color difference signals modulating quadrature phase related subcarrier signals having frequencies that are one-quarter the frequency of the original subcarrier signal. The frequency converted chrominance signal and subsampled luminance signal are combined to generate a composite video signal representing the reduced-size auxiliary image. This signal is combined with the main signal to develop the composite video pix-in-pix signal.

REFERENCES:
patent: 4063280 (1977-12-01), Hattori et al.
patent: 4134128 (1979-01-01), Hurst
patent: 4204227 (1980-05-01), Gurley
patent: 4282546 (1981-08-01), Reitmeier
patent: 4367484 (1983-01-01), Kuroyanagi et al.
patent: 4656515 (1987-04-01), Christopher

Affiliated with

Also associated with

Rating

Chrominance signal frequency converter as for a pix-in-pix telev does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chrominance signal frequency converter as for a pix-in-pix telev, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chrominance signal frequency converter as for a pix-in-pix telev will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-24604