Stored program selector for electronic calculator

Details Stored program selector for electronic calculator Stored program selector for electronic calculator

1973-10-15

1976-11-02

Shaw, Gareth D.

Communications: electrical

Digital comparator systems

340147P, 340365R, G06F 900

Patent

active

039900533

ABSTRACT:
A program selector in an electronic calculator has a number of formulas which are printed in human readable form. When a formula is selected by the operator a machine readable representation of the formula is positioned adjacent a transducer. The transducer generates an electrical signal which represents an identification of the particular mathematical formula or other type of program to be executed by the electronic calculator. The electrical signal is decoded by a decoder which generates a storage address for the starting point of the formula or program to be executed.

REFERENCES:
patent: 3248703 (1966-04-01), Moore et al.
patent: 3511974 (1970-05-01), An Wang
patent: 3533076 (1970-10-01), Perkins et al.
patent: 3533078 (1970-10-01), Perkins et al.
patent: 3593313 (1971-07-01), Tomaszewski
patent: 3660645 (1972-05-01), Lecht et al.
patent: 3686639 (1972-08-01), Fletcher et al.
patent: 3774164 (1973-11-01), Osterberg et al.

Affiliated with

Also associated with

Rating

Stored program selector for electronic calculator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stored program selector for electronic calculator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stored program selector for electronic calculator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1162679