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:
Apr. 22, 1986
Filed:
Nov. 22, 1983
Applicant:
Inventor:
Masao Shimizu, Gyoda, JP;
Assignee:
Takeda Riken Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
371 25 ; 371 27 ;
Abstract
A test pattern generator for providing test patterns to a logic circuit under test, wherein the logic circuit to be tested does not have a terminal for being set to an initial state before starting the test patterns. The initial state of the logic circuit is detected while supplying an increment pattern to increment the internal state, and the test patterns are supplied a predetermined number of clock pulses after the initial state is detected. The length of the period of the clock pulses for the test can be varied.