Patent US 4,884,151

Patent №

US 4,884,151

Granted

Owner

Lab

AI components

1

vision

Assignment

None on record

Dataset

AIPD

2023_r1 edition

Application

07153564

A video recording and reproducing apparatus with photoelectric image camera in which a color signal processing circuit of a recording system is simplified. For recording, a luminance signal and a chrominance signal are produced in accordance with an image being picked up through a photoelectric transducer. The luminance signal is angle-modulated, while a carrier signal having a lower frequency than the standard carrier signal is directly modulated with the chrominance signal, whereby a chrominance recording signal equivalent to a signal obtained by a frequency conversion of the standard carrier signal to a low frequency band is obtained and added with the angle-modulated luminance signal to be recorded. Upon reproduction, the angle-modulated luminance signal undergoes angle-demodulation to be converted to a reproduced luminance signal, while the color (chrominance) recording signal is frequency-converted to a high frequency band to be reproduced color signal. The reproduced luminance and color signals are added together to obtain a reproduced color video signal.

VisionH04N 9/84H04N 5/77Y10S 358/906

AI classification

Vision0.87
AI hardware0.00
Evolutionary computation0.00
Natural language0.00
Speech0.00
Knowledge representation0.00
Machine learning0.00
Planning0.00
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