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. 28, 1994
Filed:
Jun. 07, 1991
Deok W Kim, Seoul, KR;
Other;
Abstract
A semiconductor device with an error detecting and displaying circuit included in the device for detecting whether or not a semiconductor unit within the device has a predetermined output according to a given input value, and for displaying the outputted results indicating an error state of the device. The error detecting and displaying circuit for a semiconductor unit having an input circuit, a logic processing circuit and an output circuit comprises an additional logic processing circuit connected to the semiconductor unit for logically operating logic signals sent from said semiconductor device. A comparison circuit is also connected both to the additional logic processing circuit and to the output circuit of said semiconductor unit for comparing signals from the additional logic processing circuit with signals from the output circuit to thereby output the compared results. A driver is connected to the comparison circuit for producing an enabling signal depending upon the compared results applied from the comparison circuit. A display is connected to the driver for indicating whether an error occurred in the semiconductor unit, depending upon the enabling signal sent from the driver.