| 11. | No other companies at NAB showed a helical scan VTR, so the VR-8000 stayed hidden.
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| 12. | To facilitate digital recording on existing Hi8 videocassettes the helical scan video head drum spins 2.5?faster.
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| 13. | This method was called quadrature scanning, as opposed to the helical scan transport used by later videotape formats.
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| 14. | A DDS tape drive uses helical scan recording, the same process used by a video cassette recorder ( VCR ).
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| 15. | A miniature " video cartridge " contained thirty minutes of Hi8 tape permanently loaded around a conventional helical scan record head.
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| 16. | His main research interests is in medical imaging, the development and introduction of helical scan CT was a particular focus.
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| 17. | The helical scan method reduces the X-ray dose to the patient required for a given resolution while scanning more quickly.
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| 18. | Subsequent videotape systems have used helical scan, where the video heads record diagonal tracks ( of complete fields ) onto the tape.
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| 19. | The helical scan VTR ( the HDV-100 ) used magnetic tape similar to 1 " type C videotape for analog recording.
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| 20. | This is known as a helical scan because the tape wraps around the circular drum at an angle, travelling up like a helix.
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