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:
Apr. 25, 2006
Filed:
Aug. 17, 2004
Zhongmin LI, Pocatello, ID (US);
Zhongmin Li, Pocatello, ID (US);
AMI Semiconductor, Inc., Pocatello, ID (US);
Abstract
A differential signal output driver circuit having four switching transistors and having a bias transistor that shields each of the switching transistors from the corresponding output terminal thereby blocking the Miller capacitance of the switching capacitor from generating overshoot or undershoot in the output differential voltage. Also, the output driver circuit may be driven by a differential skew cancellation circuit that generates a balanced differential signal to drive the switching transistors to further improve signal integrity. The signal path for generating each signal in the differential signal goes through a similar structure thereby ensuring similar slew in each differential signal provided to the output driver circuit.