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.
Patent No.:
Date of Patent:
May. 09, 1995
Filed:
Aug. 13, 1993
Daniel W Staudacher, Denton, TX (US);
Frank P Mimick, Watauga, TX (US);
Tandy Corporation, Fort Worth, TX (US);
Abstract
A communications protocol for use in a main control processor used in an electronic product, which includes at least a second processor to control the user interface, such as a keyboard and a data display. The protocol gives the main control processor the ability to interpret commands received accurately and to disregard those commands that are erroneous. In addition, the protocol provides the user interface processor with all necessary feedback information it needs to determine its mode of operation or any possible error conditions that may have occurred. Furthermore, the protocol provides each processor the ability to utilize its own resources independently, while at the same time communicating with the coprocessor in a manner that treats the other processors as extended subsets of itself.