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:
May. 08, 2007
Filed:
Jan. 11, 2005
Bor-sung Liang, Kaohsiung, TW;
Bor-Sung Liang, Kaohsiung, TW;
Sunplus Technology Co., Ltd., Hsinchu, TW;
Abstract
An apparatus and method for accessing hidden data in a boundary scan test interface is disclosed, which defines an invalid state transition loop in a boundary scan test interface and initially monitors an input of state transition diagram of the boundary scan test interface so that an output of a first data is generated when a first predetermined input stream conforming to the invalid state transition loop is detected and next an output of a second data is generated when a second predetermined input stream conforming to the invalid state transition loop is detected, wherein when an input key included in a combination of the first and the second data is matched with a predetermined write key, a specific write data is loaded into a hidden register.