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. 26, 2015
Filed:
Sep. 30, 2010
Applicants:
Ron Swartzentruber, Amesbury, MA (US);
Ganesh Rao, Needham, MA (US);
Inventors:
Ron Swartzentruber, Amesbury, MA (US);
Ganesh Rao, Needham, MA (US);
Assignee:
Vitesse Semiconductor Corporation, Camarillo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01); H04L 12/66 (2006.01); H04J 3/16 (2006.01); H04L 12/24 (2006.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04J 3/0685 (2013.01); H04J 3/0682 (2013.01); H04L 41/147 (2013.01); H04L 43/0852 (2013.01); H04L 43/106 (2013.01);
Abstract
A physical layer communication device (PHY) transmits and receives signal to and from a communication link using a synchronous protocol. The PHY communicates with a higher-layer device using a packet protocol. Timestamp values contained in timing-related messages in some packets are written or modified by the PHY. Delays incurred in transmitting and receiving the packets are predicted and used in setting the timestamp values.