Kunio Sekimoto

Editing Interchangeability of the Narrow Track Digital VTR.

Editing interchangeability is one of the most important factors in narrow-track digital VTRs for broadcast use. The worst degradation of the recording foot print occurs during insert editing. This work investigates all factors that can lead to format errors. Several new technologies, such as a head pair configuration, a distinctive audio sector arrangement, using a guard band only at the editing point and so on, are proposed as ways to reduce the influences of these errors. Moreover, a new definition for the tolerance zones of helical tracks is recommended. As an example of an application, the interchangeability of the D-3 format is identified.