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:
Mar. 10, 1998
Filed:
Dec. 18, 1995
Applicant:
Inventors:
Donald Joseph Schulte, Eagan, MN (US);
James David Strom, Rochester, MN (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
327 65 ; 327 77 ; 327 66 ;
Abstract
A low voltage differential signal detector capable of detecting low-voltage differential signals over a large common-mode voltage range. The signal detector uses two differential pairs of opposite conductivity type, coupled to each other in a self-biasing manner to detect low voltage swings in a signal over a large common-mode voltage range. Depending upon the common-mode voltage level of the signal, the low-voltage level swings will be detected by one of the differential pairs, the other of the differential pairs or both.