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.

Date of Patent:
May. 17, 2022

Filed:

Mar. 27, 2019
Applicant:

Grass Valley Canada, Montreal, CA;

Inventor:

Charles S. Meyer, Crystal Bay, NV (US);

Assignee:

GRASS VALLEY CANADA, Montreal, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/755 (2013.01); H04L 45/00 (2022.01); H04J 3/06 (2006.01); H04L 65/65 (2022.01); H04L 69/22 (2022.01); H04L 45/7453 (2022.01); H04L 45/745 (2022.01);
U.S. Cl.
CPC ...
H04L 45/22 (2013.01); H04J 3/0667 (2013.01); H04L 45/00 (2013.01); H04L 65/608 (2013.01); H04L 69/22 (2013.01); H04L 45/7453 (2013.01); H04L 45/7457 (2013.01);
Abstract

An IP router capable of isochronous switching of a packetized media stream. According to an example, the IP router parses the RTP header within an incoming IP datagram to extract the RTP time stamp, which provides a time value for a unique IP Flow. By inspecting the header, the IP router can switch the flow at the point in time that the RTP time stamp value changes, or matches a target value. In one aspect, the IP router looks for the change in the RTP time stamp value and performs the switch based on the detected change. In another aspect, the IP router performs the switch at a specified time stamp value that can be unique to a group of signals or based on a common 'sync' value published to all the ports of the IP router.


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