Digital color encoder

Details Digital color encoder Digital color encoder

1984-12-04

1987-08-11

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340701, 358 27, 358 30, G09G 128

Patent

active

046865209

ABSTRACT:
A digital color encoder for producing color TV signal comprises primary color image signal sources, a sampling signal generator, coefficient memories, multipliers and an adder. The primary color image signal sources provide digitized color image signals respectively of red, green and blue. The sampling signal generator generates a sampling clock having a frequency three times as high as that of the chrominence subcarrier and provide three phase sampling signals for 0.degree., 120.degree. and 240.degree. having a frequency as same as that of the chrominence subcarrier. The coefficient memories provide coefficients for 0.degree., 120.degree. and 240.degree. for the respective color of red, green and blue according to the formula of NTSC color picture signal. The respective color image signals are sampled at the sampling clock frequency and respectively multipled with the respective coefficients in the multipliers, and then added together in the adder. This a composite color video signal is synthesized without use of ordinary subcarrier modulators for B-Y and R-Y.

REFERENCES:
patent: 4278972 (1981-07-01), Wozniak
patent: 4303912 (1981-12-01), Stafford et al.
patent: 4355327 (1982-10-01), Nagumo et al.
patent: 4442428 (1984-04-01), Dean et al.
patent: 4533909 (1985-08-01), Sauder
patent: 4578673 (1986-03-01), Yianilos et al.

Affiliated with

Also associated with

Rating

Digital color encoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital color encoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital color encoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-405493