| 摘要 |
PURPOSE:To achieve high quality reproduction, by correcting the color reproducing error of a camera due to color temperature change of a light source, in a frequency separation type single tube color TV camera. CONSTITUTION:A synchronizing signal generator 19 generates a subcarrier signal SC at a terminal 20, a burst flag at a terminal 21 and a synchronizing signal at a terminal 22. The signal SC is advanced 25 by 90 deg. and give to a balanced modulator 27, and the phase of the output of a lead device 25 is advanced by about 180 deg. to the original phase of SC at a lead device 26 and the output is given to a balanced modulator 28. The signal SC receives phase change at a burst phase adjuster 23 in interlocking with R, B gain adjusters 6, 7 in accordance with the color temperature of light source and is gated at a burst flag pulse BF outputted from a terminal 21 of a generator 19 to obtain a burst signal. The color reproducibility of high quality can be achieved by making almost equal the phase of the burst signal at 6000 deg.K and 3200 deg.K. |
