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:
Feb. 15, 2000
Filed:
Dec. 31, 1997
Francis H Chan, Williston, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A low voltage differential swing driver circuit comprises first and second serially connected field effect transistors connected in series through first and second resistors. Third and fourth field effect transistors are serially connected together through third and fourth resistors. A diode connects one side of each of the serially connected transistors to one side of a source of regulated low voltage. A remaining side of the regulated low voltage source is connected to a remaining side of the serially connected transistors whereby differential currents are produced through the pairs of transistors. A voltage bias source is connected to a junction of said first and second resistors and to the junction of said third and fourth resistors. Control logic supplies a data switching signal to a gate of the first and fourth transistors, and a complementary data switching signal to a gate of said second and third transistors. A differential signal is produced between said junctions which are connected to first and second transmission lines.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile