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Multiplexer-related

System-for-translation-and-delivery-of-multimedia-streams

Arithmetic and logic computation device and control method

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System for translation and delivery of multimedia streams

Details

Inventors: Putzolu, David M.;
Assignee: Intel Corporation (Santa Clara, CA)
Primary Examiner: Cangialosi; Salvatore
Assistant Examiner:
Attorney, Agent or Firm: Kenyon & Kenyon

A multicast transmission gating system is provided as a gateway for reception of multicast transmissions for various multicast groups from a public network to a private network having a number of clients. The gating system provides transcoding capability to provide real-time sub-groups to the private network and provides control of access by network clients to prevent bandwidth conflicts and dissemination of secure information. Firewall capabilities are also supported to prevent security breaches of the private network via the multicast facilities of the public network.

DETAILED DESCRIPTION According to the present invention, a multicast transmission gating system may be implemented.
The multicast transmission gating system comprises a receiver to receive a multicast transmission in a predetermined coding format from a first network, as well as a transcoder to generate an alternate format transmission by converting the multicast transmission from the predetermined coding format into an alternate coding format.
Control logic is provided to determine the alternate coding format.
The multicast transmission gating system further comprises a transmitter to transmit the alternate format transmission to a second network.
A further embodiment of the multicast transmission gating system may also include logic to control the transmission of the alternate format transmission to at least one client connected to the second network.
A further embodiment may also include logic to generate a description message for the alternate format transmission and transmit the description message to the second network.
A further embodiment may also include a receiver to receive a client message from at least one client connected to the second network, and logic to allow the second network transmitter to transmit the alternate format transmission upon receipt of the client message.
A further embodiment may also include firewall logic to prevent unauthorized access to the second network.

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