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:
Jul. 23, 2002
Filed:
May. 25, 2001
Michael S. Quimby, Austin, TX (US);
Bruce A. Loyer, Austin, TX (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A circuit for dynamic signal drive strength compensation. A circuit for compensating the drive strength of an output signal includes an output driver stage including a driver circuit and a drive strength control circuit. The driver circuit may be selectively enabled depending upon a drive strength indicator signal. The driver circuit includes a P-channel transistor which has a P input which is controlled by a P-channel control signal. The driver circuit also includes an N-channel transistor which has an N input which is controlled by an N-channel control signal. The drive strength control circuit may generate the respective P-channel and N-channel control signals. The P-channel control signal is prevented from changing while the P-channel transistor is turned on. The N-channel control signal is prevented from changing while the N-channel transistor is turned on.