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:
Jun. 30, 1987
Filed:
Sep. 26, 1984
John J Bradley, Framingham, MA (US);
Honeywell Information Systems Inc., Waltham, MA (US);
Abstract
A chip implemented in new technology is designed to include expandable levels of new functionality. The chip includes compatibility circuits which connect to a number of pins which are unused in the chip it replaces in an existing computer system. The compatibility circuits connect to those internal parts of the new chip that contain the newly added or altered levels of functionality. The new chip is installed in the existing computer system just as the prior chip. When so installed, the compatibility circuits enable the new chip to operate in the same manner as the replaced chip but at high speed and with improved performance. When the new chip is installed in the system for which it was designed, the compatibility circuits enable the chip to operate with a selectable level of new functionality at the same higher speed and improved performance.