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:
Aug. 03, 1993
Filed:
Nov. 25, 1991
Hiroaki Nishimori, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A semicustom made integrated circuit is fabricated from first function blocks completed before acceptance of an order from a customer, second function blocks completed after the acceptance of order, input/output buffer circuits coupled with the first function blocks, buffer circuits respectively associated with the second function blocks, and controlling circuits provided in association with the buffer circuits for shifting the associated buffer circuits between input buffer circuits, output buffer circuits, bidirectional buffer circuits and three-state buffer circuits, and the controlling circuits are instructed by the second function blocks while the manufacturer is designing the wiring arrangement of the second function blocks so that the manufacturer does not need to individually tailor the wiring arrangement between the second function blocks and the associated buffer circuits.