EXPERIMENT ON DIGITAL VIDEO RECORDING USING one-half -INCH METAL PARTICLE TAPE.

Abstract

The feasibility of a digital VTR using one-half inch cassettes with metal particle tape is checked. It is confirmed that it is possible to record more than 30 minutes of video data on a standard home-use VTR cassette at a data recording rate of about 96 Mb/s (effective data rate of 86 Mb/s). In particular, the following subjects concerning this experimental VTR system are investigated. 1) A new dc-free 8-9 conversion coding rule; 2) Optimization of error correcting capability by using a b-adjacent code (b equals 8) and an error-detecting code (the generator polynomial is to the 8th degree); 3) The characteristics of metal particle tape and magnetic heads at a recording area density of around 10 mu m**2/bit.