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. 28, 2017
Filed:
Jan. 17, 2014
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Lukas Kull, Zurich, CH;
Thomas Toifl, Zurich, CH;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/30 (2006.01); H03M 1/06 (2006.01); H03G 1/00 (2006.01); H03M 1/50 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3042 (2013.01); H03G 1/0029 (2013.01); H03M 1/0607 (2013.01); H03G 1/0005 (2013.01); H03G 3/3005 (2013.01); H03M 1/50 (2013.01);
Abstract
A zero-crossing amplifier unit for use in high speed analog-digital-converters. A gain stage compares a sampling voltage at an input node with a provided threshold voltage to obtain a gain stage output signal. A voltage controlled current source provides a load current depending on a time window between an initial slope and an end slope of the gain stage output signal. A slope control means increases a duration of a rise and/or fall time of at least one of the initial and end slopes of the gain stage output signal.