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:
Nov. 19, 2002
Filed:
Oct. 15, 1999
Masaru Tsuto, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A test pattern generator for generating a plurality of test patterns to test a memory comprising: a control memory for storing plural kinds of control instructions to generate the test patterns; a vector memory for storing vector instructions indicating an order of the control instructions to be read out from the control memory; a plurality of bank memories for alternately storing vector instructions read out from vector memory and bank memories; an address expander for generating an address of each of control instructions in control memory in accordance with vector instructions stored in a plurality of bank memories; and a test pattern calculator for generating test patterns based on control instructions read out from an address generated by an address expander stored in the control memory.