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:
Jan. 01, 2008
Filed:
Apr. 26, 2005
Mohamed M. Hafed, Montreal, CA;
Geoffrey D. Duerden, Montreal, CA;
Gordon W. Roberts, Montreal, CA;
DFT Microsystems, Inc., Norristown, PA (US);
Abstract
A multi-speed jittered signal generator () that generates a full-speed jittered signal () by scaling a low-speed jittered signal () using a frequency scaler (). The low-speed jittered signal is created by injecting a modulation signal () into a reference signal () using a jitter injector (). Injecting jitter into a low-speed reference signal allows the full-speed jittered signal to be of higher quality than conventional jitter signals created by injecting jitter information into a full-speed reference signal. The multi-speed jittered signal generator may be used as part of a testing system () for testing various circuitry, such as high-speed serializer/deserializer circuitry ().