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:
May. 20, 2008
Filed:
May. 20, 2004
Claude R. Gauthier, Cupertino, CA (US);
Aninda K. Roy, Hillsboro, OR (US);
Claude R. Gauthier, Cupertino, CA (US);
Aninda K. Roy, Hillsboro, OR (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
Input/output data transmission between a transmitting integrated circuit and a receiving integrated circuit requires a clock domain synchronizer to synchronize incoming data aligned to a clock signal of the transmitting integrated circuit to a clock signal of the receiving integrated circuit. During a start-up routine, the clock domain synchronizer propagates a pre-determined pattern of data bits through a first circuit path designed to reduce or eliminate metastability. During a normal operations mode, the clock domain synchronizer synchronizes the data signal to the clock signal of the receiving integrated circuit through a second circuit path.