Rotary switch simulator
AssigneeBurroughs Corporation
InventorIra P. Shapiro
Life of this patent
Estimating the term…
Abstract
A rotary-type switch simulator includes a shift register and a counter, both clocked by a momentary contact switch. The shift register outputs drive visual indicators indicating the selected switch position, while the counter provides a binary output corresponding to the indicated switch position. Logic circuitry, responsive to selected data bits at the outputs of the shift register and counter, reset the shift register and counter respectively to their initial states after the highest switch position has been accessed.
Claims12
An apparatus for simulating an n-position rotary-type switch, said apparatus providing an ordered set of n outputs, a next sequential one of said n outputs being selected each time said apparatus is actuated, the sequence of outputs selected being repeated after n actuations of said apparatus, said apparatus comprising:
- input means for initiating the actuation of said apparatus to its next sequential position;
- shift register means, responsive to said input means, for specifying which one of said n sequential positions is selected;
- and
- enabling means, responsive to the selected one of said n sequential positions from said shift register means, for enabling a preset of said shift register means for subsequently loading a set of preset data into said shift register means upon the n.sup.th actuation of the said input means to repeat the said sequence.
Dependencies are inferred from the claim text.