ATIS Telecom Glossary
Monday, September 01, 2014

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helical scan
A method of recording video information diagonally on a tape, used in home and professional video cassette recorders (VCRs). Note: High-speed rotating video heads scan these diagonal video tracks, giving an effective tape speed much higher than the actual tape speed, allowing more information to be recorded on a given length of magnetic tape.

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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