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:
Jul. 28, 2009
Filed:
Mar. 19, 2002
John Grass, Fremont, CA (US);
John Grass, Fremont, CA (US);
Network Equipment Technologies, Inc., Fremont, CA (US);
Abstract
Systems and methods are presented for transporting a TDM data stream over a packet network, involving buffering an input TDM data stream to fill a data frame on a sending side, assigning a sequence number to the data frame, sending the data frame in a packet across the network to a receiving side, setting a timer corresponding to the data frame, storing a copy the data frame in a sending side buffer, receiving the packet and removing the data frame at the receiving side, sending an acknowledgement frame to the sending side, buffering received data frames in a sequence order in a receive buffer, and sending a data frame with a lowest sequence number to an output TDM data stream, wherein if an acknowledgement frame is not received before an expiration of the timer, a copy of a corresponding data frame is resent to the receiving side.