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:
Mar. 25, 2008
Filed:
Jul. 11, 2007
Masashi Shibata, Tokyo, JP;
Toshiyuki Okayasu, Tokyo, JP;
Tsutomu Akiyama, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
A test apparatus includes a test head including a plurality of test boards for applying a test pattern to a device under test, a main frame for controlling a test sequence by the test head, and a fiber optic cable unit including a plurality of flat cables for optically coupling the test head and the main frame, a plurality of fiber optic cables, a dam for coupling the fiber optic cable unit and the plurality of fiber optic cables, a circumferential difference absorption apparatus for absorbing the difference in circumferential length between the plurality of flat cables of the fiber optic cable unit, and a cable guide unit for bending and holding the fiber optic cables coupled to the test board of the main frame.