| 摘要 |
PURPOSE:To reproduce an auxiliary data with a simple construction by providing an auxiliary data recording zone on the periphery of a flange in a tape cassette, and disposing an auxiliary data detector in the loading position of the tape cassette. CONSTITUTION:In the auxiliary data recording zone 9, an auxiliary data such as time information or the like is recorded in advance by an optical bar code. When loading a tape cassette constructed in such a manner is charged into a charging section A, a reel 4 is engaged with a reel driving shaft 10 and a photo-interrupter 11 as an auxiliary data detector of a part of an auxiliary data detector takes a position opposing to an auxiliary data recording zone 9 through a transparent plate 3 of a window 1'. Under this condition, the reel 4 is suitably rotated and driven through the reel driving shaft 10. The optical bar code of the auxiliary data recording zone 9 is read as an optical information by the auxiliary data detector and converted into an electric signal.
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