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. 21, 2019
Filed:
May. 02, 2017
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Hye-Won Shim, Seoul, KR;
Dong-Uk Park, Hwaseong-si, KR;
Phil-Jae Jeon, Hwaseong-si, KR;
Sang-Woo Pae, Seongnam-si, KR;
Da Ahn, Cheonan-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-do, KR;
Abstract
A clock switch device includes a control circuit and a tri-state buffer. The control circuit deactivates an output enable signal when a frequency of a clock signal varies and activates the output enable signal when the frequency of the clock signal is maintained without change. The tri-state buffer maintains an output electrode at a high impedance state when the output enable signal is deactivated and buffers the clock signal and outputs the buffered clock signal through the output electrode as an output clock signal when the output enable signal is activated.