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:
Jan. 24, 2006
Filed:
May. 06, 2004
Masaru Doi, Tokyo, JP;
Shinya Sato, Tokyo, JP;
Masaru Doi, Tokyo, JP;
Shinya Sato, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A test apparatus for testing an electronic device includes a pattern generating unit for generating a test pattern to test the electronic device, a reference clock generating unit for generating a reference clock, a timing generator for generating a timing signal, an output signal sampling circuit for sampling the output signal outputted by the electronic device in response to the test pattern at the timing based on the timing signal generated by the timing generator, wherein the timing generator includes a variable delay circuit unit for receiving, delaying and outputting the reference clock, and a delay control unit for controlling the delay amount of the variable delay circuit unit, and the delay control unit controls the delay amount based on the basic timing data and the variable delay amount which is smaller than the basic timing data.