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:
Sep. 29, 2009
Filed:
Apr. 04, 2008
Robert Haig, Austin, TX (US);
Patrick T. Chuang, Cupertino, CA (US);
Robert Haig, Austin, TX (US);
Patrick T. Chuang, Cupertino, CA (US);
Sony Corporation, Tokyo, JP;
Sony Electronics Inc., Park Ridge, NJ (US);
Abstract
Controlling on-die termination on a bi-directional single-ended data bus carrying data between a controller and a memory device. The controller and the memory device respectively include input termination pull-ups and input termination pull-downs. An enabled state is maintained for the input termination pull-downs of the controller except when data is driven on the bi-directional single ended data bus by the controller. Similarly, an enabled state is maintained for the set of input termination pull-downs of the memory device except when data is driven on the bi-directional single ended data bus by the memory device. In conjunction with this, a disabled state is maintained for the input termination pull-ups of the memory device (or controller) except when data is being received from the bi-directional single-ended data bus by the memory device (or controller).