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:
Aug. 10, 2010
Filed:
Feb. 02, 2007
Daniel M. Dreps, Georgetown, TX (US);
Dhaval R. Sejpal, Austin, TX (US);
Glen A. Wiedemeier, Austin, TX (US);
Daniel M. Dreps, Georgetown, TX (US);
Dhaval R. Sejpal, Austin, TX (US);
Glen A. Wiedemeier, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Multimodal memory controllers are disclosed that include: a transmitter having a first input signal line, a second input signal line, a first output signal line, a second output signal line, a first single-ended driver, a second single-ended driver, a differential transmitter, and a mode control signal line, the mode control signal line having asserted upon it a mode control signal, the transmitter configured to operate the output signal lines using the single-ended drivers at a first voltage when the mode control signal is a first value and to operate the output signal lines using the differential transmitter at a second voltage when the mode control signal is a second value, and the transmitter configured to protect the differential transmitter from the first voltage when the mode control signal is the first value.