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:
Mar. 14, 2000
Filed:
Jul. 22, 1998
Yoram Ofek, Riverdale, NY (US);
Synchrodyne, Inc., Riverdale, NY (US);
Abstract
The invention describes a method for transmitting and forwarding packets over a packet switching network wherein the delay between two switches increases, decreases, or changes arbitrarily over time. Packets are being forwarded over each link inside the network in predefined periodic time intervals. The switches of the network maintain a common time reference, which is obtained either from an external source (such as GPS--Global Positioning System) or is generated and distributed internally. The time intervals are arranged with simple periodicity and complex periodicity (like seconds and minutes of a clock). When the delay increases at some point of time, a packet may be late for its predefined forwarding time interval. In such case, the packet is delayed until the next time interval of its virtual pipe. When the link delay decreases, packets are buffered until the first time interval of its virtual pipe.