Arbiter for serial data bus-based streaming media transmission system terminal equipment

A terminal equipment and bus arbitration technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of small average waiting time, complex control logic, difficult implementation, etc., and achieve the effect of short waiting time, simple implementation, and increased utilization

Active Publication Date: 2010-12-29
BEIJING PHILISENSE TECH
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  • Abstract
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Problems solved by technology

The advantage of the dynamic priority algorithm is that it takes into account the advantages and disadvantages of the first two algorithms, that is, it has a smaller average waiting time and allows each processor in the system to have a more equal opportunity to use t

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  • Arbiter for serial data bus-based streaming media transmission system terminal equipment
  • Arbiter for serial data bus-based streaming media transmission system terminal equipment
  • Arbiter for serial data bus-based streaming media transmission system terminal equipment

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Embodiment Construction

[0025] The specific implementation manners of the present invention will be explained below in conjunction with the accompanying drawings. In all the drawings illustrating the embodiments, parts having the same functions are assigned the same symbols, and repeated descriptions are omitted.

[0026] The present invention can flexibly implement bus arbitration with low cost and simple structure, and can be widely used in on-site conference systems in combination with serial streaming media real-time buses in consideration of conference application scenarios.

[0027] The data arbitration in the present invention is mainly aimed at the serial cascaded conference system, and arbitrates multiple signals for data transmission using the bus inside the terminal equipment. The basic structure of the serial cascaded conference system is as attached figure 1 shown. Different from the traditional star LAN topology, this system for digital streaming media transmission adopts a serial ca...

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Abstract

The invention discloses an arbiter for serial data bus-based streaming media transmission system terminal equipment and provides a bus arbiter in the terminal equipment. Multiple sets of terminal equipment are connected in series through a serial bus and the frontmost terminal equipment is connected in series with central control equipment. The bus arbiter comprises a data reading unit, at least one storage, at least one priority calculator, a comparator and an upstream port. The bus arbiter is used for arbitrating data using the serial bus, overcomes the shortcomings of both static priority arbitration algorithm and equalization algorithm, takes advantage of the advantage of short average waiting time of the dynamic priority algorithm, ensures that each module has equal chance of using the bus, increases the utilization rate of the bus and is simple to implement.

Description

technical field [0001] The technology belongs to the technical field of data forwarding and switching, and relates to a bus arbitration method for sending and receiving multiple stream media data on the same bus. Background technique [0002] In today's information age, people communicate more and more frequently in real time, and their requirements for fast information communication are also getting higher and higher. From large-scale international political meetings to small corporate business negotiations, our communication depends on meetings all the time. With the rapid development of our needs, the conference system gradually develops from a single point-to-point mode to a point-to-multipoint mode, and even a multi-point-to-multipoint mode. The rapid development of IT technology makes us get used to it and very Relying on the convenient, fast and cheap working mode brought to us by this technology, the integration of IT, audio, video and the network has transformed us...

Claims

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Application Information

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IPC IPC(8): G06F13/362
Inventor 杨振华曹忻军施亮
Owner BEIJING PHILISENSE TECH
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