Title:
DIGITAL COLOR SIGNAL PROCESSING CIRCUIT
Document Type and Number:
Japanese Patent JPH01273493
Kind Code:
A
Abstract:
PURPOSE:To generate a burst signal with a constant amplitude by adding and dividing signals during a burst signal individually to calculate a constant and selecting them switchingly. CONSTITUTION:The code of the sampled repetitive signal is arranged by a code shaping means 11 to form repetitive signal comprising 1st and 2nd color signals B-Y and R-Y. Then a 1st arithmetic means 69 adds plural number of 1st color signals, the result is divided to calculate a prescribed constant and plural 2nd color signals are added by the 2nd calculation means 71, the result is divided and a prescribed constant is calculated. Then a 1st selection means 37 uses a prescribed clock to select them alternately thereby forming a burst signal, and a 2nd selection means 51 outputs the burst signal during the burst period and outputs 1st and 2nd color signals from a 2nd delay means 21 during other period. Thus, the burst signal with a constant amplitude is obtained without giving effect on the color signal.
Inventors:
ISHIZAKA KUNIMASA
Application Number:
JP10355888A
Publication Date:
November 01, 1989
Filing Date:
April 26, 1988
Export Citation:
Assignee:
NIPPON DENKI HOME ELECTRONICS
International Classes:
H04N9/64; H04N11/04; (IPC1-7): H04N9/64; H04N11/04
Attorney, Agent or Firm:
Miharu Saito