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| Image recording apparatus |
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| Apparatus for recording and reproducing a video signal |
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Method of recording and reproducing color video signals
| Details |
Inventors: Kanamaru, Hitoshi;
Assignee: Pioneer Electronic Corporation (Tokyo, JP)
Primary Examiner: McElheny, Jr.; Donald
Assistant Examiner:
Attorney, Agent or Firm: Fleit, Jacobson, Cohn, Price, Holman & Stern
A method for recording broad-band color video signals in which the broad-band 3-color signals are separated into narrow-band 3-color signals and a high-band monochrome signal having a higher frequency band. The high-band monochrome signal is divided into three bands and frequency-converted respectively. The frequency-converted three bands of the high-band monochrome signal are merged into the narrow-band 3-color signals, while maintaining the frequency interlace relationship, so that three composite color video signals are produced. The thus produced three composite color video signals are recorded on different regions of recording medium. |
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DETAILED DESCRIPTION The present invention therefore contemplates to alleviate the drawbacks described above, and a prime object of the present invention is to provide a recording system capable of recording broad-band color video signals having a band width of 20 MHz on recording media.
Another object of the present invention is to provide a method of recording and reproducing broad-band color video signals using the conventional signal write and read units without incurring the deterioration of resolution, and in playback operation, reproducing pictures based on the broad-band color video signals continuously over a long period of time.
According to the present invention, the color video signal recording method comprises the steps of separating broad-band 3-color video signals into narrow-band 3-color signals and a high-band monochrome signal having a frequency band higher than the narrow-band signals, dividing the high-band monochrome signal into three bands and, after implementing frequency conversion, merging (convolving) the band-divided, frequency-converted monochrome signals into the narrow-band 3-color signals, while maintaining the frequency interlace relationship, thereby producing three composite color video signals, and recording the three composite color video signals in different regions of recording medium.
According to another aspect of the invention, a method of recording and reproducing a color video signal comprises the steps of separating broad-band 3-color video signals into narrow-band 3-color signals and a high-band monochrome signal having a frequency band higher than the narrow-band signals, dividing the high-band monochrome signal into three bands and, after implementing frequency conversion, merging (convolving) the band-divided, frequency-converted monochrome signals into the narrow-band 3-color signals, while maintaining the frequency interlace relationship, thereby producing three composite color video signals, and recording the three composite color video signals in different regions of a recording medium, and for playback, retrieving recorded information from the three recording regions concurrently in synchronism with a predetermined reference signal, and reproducing the original broad-band 3-color signals from the three composite color video signals
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TV Signal 
