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:
Jul. 29, 2003
Filed:
Jun. 10, 2002
Peter Korger, Frederick, CO (US);
Robert W. Moss, Longmont, CO (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
A method an apparatus are provided for calibrating a mask signal which is used for masking a data strobe signal that is received from a memory device with read data. According to the method, one or more read operations are performed with the memory device, and the data strobe signal is sampled at a plurality of different time delays relative to a local clock signal to produce a plurality of data strobe sample values. The plurality of data strobe sample values are searched to identify a temporal location within a preamble phase of the data strobe sample values and one of the time delays that corresponds to the temporal location. A delay at which the mask signal is disabled in response to a read operation is then set relative to the local clock signal based on the time delay corresponding to the temporal location.