Imation Corporation

Minnesota Mining and Manufacturing Company

Robert E Wolff

Theodore A Schwarz

Robert J Youngquist

Jerry Lee Alexander

Gary D Moeller

A drive and tape cartridge provide motor control for the tape tension in a belt-driven tape cartridge. Two different rollers drive the belt, and are controlled by two separate motors. This allows reduction in the friction required in the system and allows optimal sizing of the motors.

Motor control of tape tension in a belt cartridge

A direct file access system for a magnetic tape where all data files begin at a designated location on the tape. The direct file access system may be used with a reduced rewind data configuration to decrease data access time. The reduced rewind data configuration divides data files into generally equal portions so that data files begin and end at the designated location on the tape, eliminating rewind sequences. A method and system for reducing the number of tape retensioning passes is included to further decrease access time.

Direct file access system for magnetic tape

A data cartridge recorder is disclosed in which a preformatted tape is employed to enable automatic detection of the beginning of the tape and the end of the tape as well as of the location of preidentifiable record locations positioned along a plurality of parallel tracks.

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Edina, MN, United States of America

Robert E Wolff