Registers – Coded record sensors – Feed mechanisms
Patent
1976-11-03
1978-02-21
Cook, Daryl W.
Registers
Coded record sensors
Feed mechanisms
235494, 353 26A, G06K 1326, G06K 1906, G03B 2312
Patent
active
040748537
ABSTRACT:
The disclosure relates to a control system for use in an information retrieval system. The control system adapts the retrieval system for locating a preselected information bearing element wherein the information bearing elements comprise a first set of elements numbered consecutively in a first direction for identification and a second set of elements numbered consecutively in a second direction for identification and wherein each element of the first set is associated with an identifiable marker comprising a first set of markers and each element of the second set is associated with an identifiable marker comprising a second set of markers. The control system includes a marker sensor for sensing the first and second sets of markers, a marker sensor detector for detecting which set of markers is being sensed and interface means for selectively coupling the marker sensor to the retrieval system counter in response to the detector to enable the counter to maintain the location of the elements as the elements are driven. The control system also adapts the retrieval system for locating a preselected group of elements and a preselected element in the preselected group where the elements are divided in a plurality of consecutively numbered groups and the elements within each group are consecutively numbered for identification.
REFERENCES:
patent: 2749533 (1956-06-01), Daniels
patent: 2782398 (1957-02-01), West et al.
patent: 2820907 (1958-01-01), Silverman
patent: 3757091 (1973-09-01), Baker
patent: 3835297 (1974-09-01), Inove et al.
Bell & Howell Company
Cook Daryl W.
Walsh Robert A.
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