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. 28, 2012
Filed:
May. 16, 2006
Mohammad S. Mobin, Orefield, PA (US);
Gregory W. Sheets, Bangor, PA (US);
Lane A. Smith, Easton, PA (US);
Craig B. Ziemer, Fleetwood, PA (US);
Mohammad S. Mobin, Orefield, PA (US);
Gregory W. Sheets, Bangor, PA (US);
Lane A. Smith, Easton, PA (US);
Craig B. Ziemer, Fleetwood, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
Methods and apparatus are provided for evaluating the eye margin of a communications device using a data eye monitor. The quality of a data eye associated with a signal is evaluated by sampling the signal for a plurality of different phases; evaluating the samples to evaluate one or more of a height and width of the data eye; and determining whether the one or more of the height and width satisfy one or more predefined criteria. One or more parameters of the communications device can optionally be adjusted if the communications device does not satisfy the one or more predefined criteria. The communications device can optionally be assigned to a quality category based on the evaluation. A phase offset between a first clock signal used to sample the signal and one or more clocks used to sample data is reduced.