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:
Oct. 08, 2013
Filed:
Sep. 22, 2011
Si-hong Kim, Yongin-si, KR;
Seung-jun Bae, Hwaseong-si, KR;
Jin-il Lee, Hwaseong-si, KR;
Kwang-il Park, Yongin-si, KR;
Si-Hong Kim, Yongin-si, KR;
Seung-Jun Bae, Hwaseong-si, KR;
Jin-Il Lee, Hwaseong-si, KR;
Kwang-Il Park, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A data output buffer includes a driving unit and a control unit. The driving unit selectively performs a termination operation that provides a termination impedance to a transmission line coupled to an external pin, and a driving operation that provides a drive impedance to the transmission line while outputting read data. The control unit adjusts a value of the termination impedance and a value of the drive impedance based on an output voltage at the external pin during a termination mode, and controls the driving unit to selectively perform one of the termination operation and the driving operation during a driving mode.