Calculating and postal zip code-to-postal zone converting appara

Details Calculating and postal zip code-to-postal zone converting appara Calculating and postal zip code-to-postal zone converting appara

1976-12-20

1978-10-24

Malzahn, David H.

Boots, shoes, and leggings

G06F 1520

Patent

active

041225260

ABSTRACT:
An apparatus for performing mathematical calculations and for converting postal zip code information into postal zone information comprises a mathematical logic circuit which is programmed to perform mathematical calculations. A converter circuit, incorporated in the apparatus in removable, replaceable, modular form, is programmed to determine the postal zone designating each of a plurality of specific geographical destinations of mail as a function of the zip code associated with each of the geographical destinations. Since the postal zone associated with each destination zip code is also a function of the location from which mail originates, the converter logic circuit is programmed to perform the determination for a specific originating location. The apparatus may be adapted for use at different originating locations by substituting an appropriately programmed modular converter logic circuit for one which is inappropriately programmed. Alternatively, the converter logic circuit may be reprogrammed while interfaced with the remainder of the apparatus. A switching device is also provided for selectively operating the apparatus in a calculator mode or in a zip code-to-zone conversion mode.

REFERENCES:
patent: 3635297 (1972-01-01), Salava
patent: 3816730 (1974-06-01), Mititaka et al.
patent: 3816731 (1974-06-01), Jennings et al.
patent: 3938095 (1976-02-01), Check, Jr. et al.
patent: 3995123 (1976-11-01), Wilson
patent: 4002892 (1977-01-01), Zielinski

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