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:
Jan. 30, 2007
Filed:
Jul. 15, 2004
Carol Ann Huber, Macungie, PA (US);
John C. Kriz, Palmerton, PA (US);
Brian C. Lacey, Kunkletown, PA (US);
Bernard L. Morris, Emmaus, PA (US);
Carol Ann Huber, Macungie, PA (US);
John C. Kriz, Palmerton, PA (US);
Brian C. Lacey, Kunkletown, PA (US);
Bernard L. Morris, Emmaus, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
A buffer design for an integrated circuit that has adjustable slew rate control, yet requires significantly less space to fabricate than does a conventional buffer with slew rate control. A new slew rate control circuit design is added to a Complementary Metal Oxide Semiconductor CMOS buffer to implement slew rate control in the buffer (e.g., selection between a high slew rate and a low slew rate). The new slew rate control circuit requires significantly less space to fabricate, and when applied to each buffer in an given integrated circuit, e.g., input/output buffers that may be placed along the periphery of the integrated circuit, the savings can be extraordinary.