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:
Feb. 20, 2018
Filed:
May. 07, 2015
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventors:
Assignee:
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3185 (2006.01); H03K 3/037 (2006.01);
U.S. Cl.
CPC ...
G01R 31/318538 (2013.01); G01R 31/318555 (2013.01); H03K 3/0375 (2013.01);
Abstract
A scan chain circuit includes first through N-th flip-flops connected in series to sequentially transfer data in response to a control signal, where N is an integer greater than 1. In the first through N-th flip-flops, the data are transferred in a first direction from the first flip-flop to the N-th flip-flop. The control signal is applied to the first through N-th flip-flops in a second direction opposite to the first direction from the N-th flip-flop to the first flip-flop.