Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for filtering media packets

A technology of media grouping and equipment, applied in television, transmission systems, instruments, etc., can solve problems such as system slowdown and processor burden

Active Publication Date: 2012-12-12
CISCO SYST INT R L
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this architecture is a great improvement over existing technologies because board-to-board communication is greatly reduced, board-to-board communication still relies on the processor to filter packets and redistribute media packets to the DSP with a full network stack
This places an unnecessary load on the processor, slowing down the system
despite the contact image 3 and 4 The architecture is specifically mentioned, but this is not relevant for the figure 2 The PCI bus-based MCU architecture shown in the even bigger problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for filtering media packets
  • Method and device for filtering media packets
  • Method and device for filtering media packets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following description is presented to enable one of ordinary skill in the art to make and use the various aspects and examples of the invention. Descriptions of specific devices, techniques, and applications are provided as examples only. Various modifications to the examples described herein will be readily apparent to those of ordinary skill in the art, and the generic principles defined herein may be applied to other examples and applications without departing from the spirit and scope of the invention. Accordingly, the invention is not intended to be limited to the examples shown and described herein, but is to be accorded scope consistent with the claims.

[0024] refer to Figure 5 , the media packet filtering unit 50 includes three FIFOs 51 , a soft core processor 52 and a lookup table LUT 59 . The triple FIFO 51 is a synchronous or asynchronous FIFO (first in first out) with three ports 53 , 54 and 55 . The first port is a data input port 53 usually conne...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method in a video conferencing device for filtering media packets from a video conferencing data stream. The video conferencing device comprises a media processing network, a general purpose network, a soft-core processor, a Look-up Table memory (LUT), and a full network stack. The method comprises receiving at the soft-core processor a packet of a video conferencing media stream, determining whether the length of the packet is sufficiently long to contain media, determining whether the protocol of the packet is supported by the soft-core processor, finding a media stream ID for the packet, sending a request to the LUT using the stream ID as an input value while in parallel determining whether the packet is a valid media packet; and when receiving an destination address in the media processing network from the LUT and determining that the packet is a valid media packet, modifying the header of the packet with the destination address received from the LUT; and routing the packet to the modified destination address. A video conferencing device is adapted to perform the method.

Description

technical field [0001] The present invention relates generally to the processing of videoconferencing data. More particularly, the present invention relates to a method of filtering media packets from a videoconferencing data stream, and a videoconferencing device, such as a multipoint control unit, that implements the method. Background technique [0002] Video conferencing and related hardware generally fall into two camps. In the first camp, a "conference" takes place between just two participants, and the participants are directly connected to each other through some form of data network. In this form of networking, only two endpoints are involved, and a real meeting only takes place if there are multiple participants at one of the two endpoint sites. Examples of such conferencing on the low-tech end are or Skype PC-enabled endpoints interconnected by software such as SNAP, and at the higher end are devices utilizing dedicated endpoint hardware interconnected eg vi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04N7/15G06F15/163H04L29/08H04L45/16H04L45/74H04L49/111
CPCH04L49/55H04L49/201H04L49/3009H04L69/22H04L45/16H04L45/74H04L49/9057H04L65/403H04N7/152
Inventor 西蒙·罗宾斯
Owner CISCO SYST INT R L