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:
Sep. 08, 2009
Filed:
Nov. 01, 2004
Christopher Scott Jones, Portland, OR (US);
Jeffrey Lee Sonntag, Portland, OR (US);
John Theodore Stonick, Portland, OR (US);
Daniel Keith Weinlader, Allentown, PA (US);
Christopher Scott Jones, Portland, OR (US);
Jeffrey Lee Sonntag, Portland, OR (US);
John Theodore Stonick, Portland, OR (US);
Daniel Keith Weinlader, Allentown, PA (US);
Synopsys, Inc., Mountain View, CA (US);
Abstract
A pulse response for a receiver, as an array PR, is found from the receiver's symbol stream. For a continuous stream of arbitrary data, a value of the array PR[k] can be determined from the signal levels of the symbols received. The stream of received data is input to a FIFO. Between the first and last locations of the FIFO is the symbol referred to herein as D. Symbols located in the FIFO before Dare referred to as D. Symbols located in the FIFO after Dare referred to as D. Ddiffers from the other FIFO symbols in that its signal level can be measured with an adjustable error slicer. The ISI effect of any Dupon Dcan be measured, and thus any PR[k] measured, by measuring the average signal level of Dwhen only certain types of data streams occur in the FIFO.