Method and apparatus for recording a digital information...

G - Physics – 11 – B

Patent

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352/17, 352/18

G11B 27/10 (2006.01) H04N 5/76 (2006.01)

Patent

CA 1182209

ABSTRACT OF THE DISCLOSURE Apparatus for performing a method of recording a color video signal on a magnetic tape includes an analog-to-digital converter which samples the video signal at a frequency which is at least three times the color subcarrier frequency of the color video signal and converts the sampled color video signal to digital form; an interface which sequentially distributes the digitized samples to, for example, four channels, each channel including a time base compressor for compressing the digitized samples supplied thereto, an error control encoder for generating error control data from the respective compressed samples and adding the error control data thereto, and a recording processor for adding synchronizing, identifying and address signals to the compressed digitized samples supplied thereto and for code converting the digitized video signal in the form of 8-bit words to a respective 10-bit word code to reduce the low frequency components of the digitized video signal; and four recording transducers, each associated with one of the channels, for recording the digitized video signal from the four channels in a plurality of parallel tracks extending obliquely on the magnetic tape without guard bands between, preferably, any adjacent ones of the tracks and with the digitized video signal being recorded in alternate ones of the tracks with a first azimuth angle and the digitized video signal being recorded in the remaining alternate ones of the tracks with a second azimuth angle which is different from the first azimuth angle.

365871

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