Apparatus for identifying a mis-oriented tape cassette in a load

Details Apparatus for identifying a mis-oriented tape cassette in a load Apparatus for identifying a mis-oriented tape cassette in a load

1994-10-25

1998-11-10

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 965, G11B 15675

Patent

active

058360069

ABSTRACT:
The orientation of a tape cassette is automatically determined as it is being loaded into the tape drive by the transport mechanism. A reference edge of the cassette (for example, a predetermined lower edge of a DAT tape cassette) is characterized by a distinctive non-symmetrical profile of transparent and opaque edge portions, and a radiation source and sensor are positioned within the transport mechanism along a radiation axis that intersects an adjacent edge of the cassette as it is being loaded into the tape drive. The sensor output thereby produces a signal from which it can be determined whether the cassette is oriented with its reference edge intersecting the radiation axis. In a preferred embodiment, the output of the sensor is converted into a digital signature which is compared with a stored signature corresponding to the distinctive profile associated with the reference edge. The tape cassette may be ejected for possible manual re-orientation if the output signal from the sensor indicates the tape cassette is not properly oriented.

REFERENCES:
patent: 4636903 (1987-01-01), Rudi
patent: 4947277 (1990-08-01), Kubota
patent: 5032939 (1991-07-01), Mihara et al.
patent: 5089920 (1992-02-01), Bryer et al.
patent: 5231553 (1993-07-01), Weber et al.
patent: 5264974 (1993-11-01), Campbell et al.

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