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. 14, 2012
Filed:
Feb. 18, 2009
Hoe-ju Chung, Yongin-si, KR;
Hoe-ju Chung, Yongin-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
Provided is a memory system for seamless switching. The memory system includes first through mth chips, where m is a natural number, connected in the form of a daisy chain and configured to transmit at least one of signals and data, a (k−1)th chip of the first through mth chips, where k is a natural number and 2≦k≦m, configured to output a (k−1)th detection signal corresponding to a phase difference between (k−1)th test data of the (k−1)th chip and kth test data of a kth chip of the first through mth chips, and the kth chip including a clock phase control unit configured to control a phase of a received clock signal and to output the phase-controlled clock signal as a kth clock signal, where the clock phase control unit of the kth chip outputs the kth clock signal in response to the (k−1)th detection signal.