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:
Aug. 28, 2007
Filed:
Nov. 10, 2004
Frederick A. Ware, Los Altos Hills, CA (US);
Kevin S. Donnelly, San Francisco, CA (US);
Ely K. Tsern, Los Altos, CA (US);
Srinivas Nimmagadda, Santa Clara, CA (US);
Frederick A. Ware, Los Altos Hills, CA (US);
Kevin S. Donnelly, San Francisco, CA (US);
Ely K. Tsern, Los Altos, CA (US);
Srinivas Nimmagadda, Santa Clara, CA (US);
Rambus Inc., Los Altos, CA (US);
Abstract
The present invention provides a method and apparatus for synchronizing signal transfers between two clock domains, where the clock domains have a gear ratio relationship. A gear ratio means that the clocks are related by a ratio, such that each clock has a different integer number of clock cycles in a common period. Also, in addition to a gear ratio relationship, the clocks may have a synchronized edge at the end of the common period. For each clock, the cycles in the common period are 'colored', i.e., identified by a number (1st, 2nd, etc.). By using the coloring technique, the appropriate clock edge to perform a data or control signal transfer can be identified. The edges are preferably chosen to minimize the latency of the transfer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile