Recording/reproducing device, recording/reproducing method, and program recording medium

Abstract

There is provided a recording / reproducing device for recording digital data by a rotary head on an inclined track formed with inclination with respect to the longitudinal direction of a magnetic tape or reproducing the digital data recorded on the inclined track. When control is performed so that a capstan servo calculation unit (71) of a reproduction system (20) performs phase lock at a speed multiplied by +-24 and the rotary head traces search data for reproduction, lock is performed to the inclined track of a predetermined track number and the search data detection result is checked. If no search data can be acquired, the speed is kept at a predetermined direction so that lock is performed with the next error correction block. This is repeated twice at the position farthest from the target position and lock is performed when the search data is acquired.

Description

technical field [0001] The present invention relates to a recording / reproducing apparatus, a recording / reproducing method, and a recording program medium each for recording or reproducing digital data to or from inclined tracks formed and inclined at The lengthwise direction of the tape. [0002] This application is based on and claims priority from Japanese Patent Application No. 2004-176146 filed on June 14, 2004, the entire contents of which are hereby incorporated by reference. Background technique [0003] In a digital video tape recorder, video data is compressed into, for example, MPEG (Moving Picture Experts Group) format, and recorded in a magnetic tape. 1A and 1B show an example of digital data compressed into an MPEG format, in which 15 frames of video stream data are regarded as one GOP (Group of Pictures). FIG. 1A shows original video data including video data items arranged in time order. No. 0 to No. 14 indicate serial numbers of frames of video data. [0...

AI Technical Summary

Problems solved by technology

However, this method does not reliably guarantee acquisition of subcode data recorded near the point where the tape leaves the drum

Therefore, the corrected position information cannot be obtained, and the tracking accuracy is inevitably reduced

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