The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 20, 1983

Filed:

Jun. 25, 1979
Applicant:
Inventors:

Ronald E Lange, Phoenix, AZ (US);

Steve E King, Phoenix, AZ (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract

An apparatus for conducting input output operations with another data processing device in a flexible and low cost manner is comprised of a programmed microprocessor coupled to a keyboard, a parallel port, and a modem. The microprocessor is programmed to periodically scan the keyboard to determine what keys if any are depressed. It also scans the parallel port for incoming data and senses incoming data from the modem by sensing a start bit. Control characters from the keyboard can set options such that incoming data from an input can be simultaneously sent out from the modem and/or parallel port.


Find Patent Forward Citations

Lange, Ronald. (1983). Microprocessor based computer terminal (U.S. Patent No. 4405978). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4405978

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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