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. 27, 2024
Filed:
Oct. 05, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Dongho Shin, Yongin-si, KR;
Jungjune Park, Seoul, KR;
Kyoungtae Kang, Seoul, KR;
Chiweon Yoon, Seoul, KR;
Junha Lee, Seoul, KR;
Byunghoon Jeong, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
An apparatus and method for ZQ calibration, including determining a strong driver circuit and a weak driver circuit, which are related to an input/output (I/O) circuit connected to a signal pin, at power-up of the I/O circuit; providing a ZQ calibration code related to a sweep code to one from among the strong driver circuit and the weak driver circuit according to ZQ calibration conditions; and providing a ZQ calibration code related to a fixed code to an unselected circuit, thereby adjusting a termination resistance of the signal pin.