Harman International Industries, Inc.

David Olsen

Levi Gene Pearson

Craig Gunther

Levi Pearson

A network communication system may include talkers, listeners, and bridges configured to begin communication of a data stream without first establishing a reservation for the communication. Thereafter, a reservation protocol may be used to confirm the communication, and tear down the communication if the communication is not confirmed or when the communication is complete.

Rapid startup with dynamic reservation capabilities for network communication systems

A network communication system includes a network address management and functional object discovery system. The network address management and functional object discovery system includes a network manager that manages network addresses for functional objects of electronic devices that communicate with each other over a network. The network manager may maintain a database that maps or associates unique IDs of the functional objects with associated network addresses. The network manager may provide non-conflicting instance IDs and network addresses to the electronic devices. The network manager may also provide instance IDs and/or network addresses for other electronic devices so that the electronic devices may communicate with each other over the network.

Network address management and functional object discovery system

A system that includes a transmitting apparatus and a receiving apparatus may communicate over an Ethernet Audio/Video Bridging network. The transmitting apparatus and the receiving apparatus may each include an application layer module in communication with an application interface module. The application layer module of the transmitting apparatus may interface with the application interface module to send a control message over the network to control flow of a data stream over the network. The application layer module of the receiving apparatus may interface with the application to interface module to receive the control message.

System for communicating control messages in an AVB network

A network communication system includes a network node that is configured to create and terminate sessions between talkers and listeners connected to different Layer 2 networks. The talkers and listeners may be configured to reserve network paths and communicate data streams in accordance with a Layer 2 reservation protocol, such as Stream Reservation Protocol. The talkers and listeners in the different Layer 2 networks may reserve network paths and communicate data streams through a network node configured to manage sessions using a Layer 3 session protocol, such as Session Initiation Protocol. The network node may reserve the network paths and enforce quality of service in accordance with the Layer 2 reservation protocol so that the talkers and listeners in the different Layer 2 networks may communicate data streams to each other.

Quality of service for streams over multiple audio video bridging networks

A system that includes a talker, a listener, and a controller may communicate over an Ethernet Audio/Video Bridging network. The controller may communicate control messages to manage data streams between the talker and the listener through one or more application layer interfaces of the talker and the listener. Based on the control messages, the talker and the listener may communicate using a Stream Reservation Protocol to reserve connection for, or remove connection from, the data streams. The talker and listener may communicate the success of reserving or removing the connections to the controller through the application layer interfaces.

System for managing audio/video streams using non-avb application layer structures in listener devices of an avb network

Media Clock Negotiation (MCN) Advertise packets may advertise one or more media clock streams. Each media clock stream may include values of a real-time clock sampled according to a first media clock. A second media clock may be recoverable from the media clock stream such that the second media clock is synchronized with the first media clock. One or more transmitters that receive the packets may determine whether the advertised media clock stream meets a set of media clock conditions. If the advertised media clock stream meets the set of media clock conditions, then the transmitter may add the advertised media clock stream to a set of qualified streams. Each transmitter may select a reference media clock stream from the set of qualified streams. By selecting the same reference media clock stream, media clocks at two or more transmitters may be synchronized.

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Kaysville, UT, United States of America

David Olsen