Abstract: A microfiche reader transport system permitting the automatic and selective accessing of one of a plurality of microfilm frames mounted on a microfiche card. The transport system is independently actuable in the X and Y directions via stepper motor means which are, in turn, selectively controlled via an operator keyboard and a programmable microprocessor controller responsive thereto. The transport system further has the capability of accommodating microfiche cards of various frame formats, and includes means for adaptively adjusting to different magnification ratios of the reader optics and for audibly prompting and verifying operator selections and error conditions.
Type:
Grant
Filed:
November 9, 1983
Date of Patent:
July 16, 1985
Assignee:
MF Reader Development Fund
Inventors:
Terrance P. DeRoche, Thomas A. Hollander, Charles H. Smoot