Helical Scanning

Helical scanning is a method used in tape recording and data storage where the tape moves diagonally across a rotating drum or head assembly. This setup creates a helical (spiral) path, allowing the recording or reading head to cover a larger area of the tape efficiently. It enables high data transfer rates and compact storage, making it ideal for professional video and high-capacity data backup systems. The process combines linear tape movement with rotation, allowing continuous, fast, and high-quality data recording or playback without the need for multiple tape passes.