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:
Oct. 22, 2002
Filed:
Sep. 05, 2000
Dietmar Loy, Sausalito, CA (US);
Thomas Reitmayr, San Francisco, CA (US);
Coactive Networks, Inc., Sausalito, CA (US);
Abstract
The present invention provides a method and apparatus for accurate packet time stamping in a network. The apparatus includes a time stamping logic, where the time stamping logic detects when a packet is transmitted or received; and a time source, where time information from the time source is latched when the time stamping logic detects the packet. In the preferred embodiment, the time stamping logic monitors packet traffic on a bus. When the time stamping logic detects a packet, a time stamping signal is generated which latches time information from the time source. The time information may then be used to measure the transmission delay for the packet for synchronizing the clocks at the transmitting and receiving nodes.