News Column

Patent Issued for Media Distribution via a Scalable Ad Hoc Geographic Protocol

June 17, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- From Alexandria, Virginia, VerticalNews journalists report that a patent by the inventors Hall, Robert (Berkeley Heights, NJ); Jamison, Richard (Santa Maria, CA), filed on December 15, 2011, was published online on June 3, 2014.

The patent's assignee for patent number 8744419 is AT&T Intellectual Property, I, L.P. (Atlanta, GA).

News editors obtained the following quote from the background information supplied by the inventors: "Scenarios can be envisioned in which it would be advantageous to be able send the same media, such as audio and/or voice communication, for example, to everyone in a geographic area. Such scenarios include, for example, gaming, emergency response, and military applications. Previous attempts to distribute voice include radio-based walkie-talkies, conference call technology, and old-style 'party lines' on wired networks. Broadcast-based walkie-talkie-like shared-radio channels distribute information to all devices in the coverage/range of transmitters but do not provide relaying to other devices. Conference call technology requires a central server that mixes signals, however it cannot be guaranteed that a central server will be in contact with every client device. Wired party lines are applicable wired telephone systems, and thus are not applicable to wireless systems."

As a supplement to the background information on this patent, VerticalNews correspondents also obtained the inventors' summary information for this patent: "The following presents a simplified summary that describes some aspects or embodiments of the subject disclosure. This summary is not an extensive overview of the disclosure. Indeed, additional or alternative embodiments of the subject disclosure may be available beyond those described in the summary.

"Media may be distributed via an ad hoc geographic routing/broadcast (geocast) protocol. The media may include any appropriate media, such as, for example, a media stream, audio data, voice-based information, image data, graphics data, video data, multimedia data, etc. Media can be in any appropriate format, such as, for example, prerecorded, live, synchronous voice conversations, or the like. The media can be provided to all devices, or a specific device(s), in a specified geographic region in an efficient and scalable manner. The distribution of media via an ad hoc geocast protocol as described herein is applicable to regions regardless as to whether a region is lightly or heavily populated. The region of interest need not align with existing coverage areas of voice and data mobile radio systems.

"In example embodiments, media may be transmitted, via a WiFi (or the like) adhoc network, from one device to a cluster of devices that is geographically located in a particular region. Devices that are located between the source and the intended recipient may act as routers with the ability to forward data packets toward the intended recipient. In effect, the devices form a geocast network cloud allowing any device within the cloud to communicate with any other device in the cloud. Devices form a network of nodes wherein the nodes of the network can constantly change position. Thus, the transmission path through the network can be constantly changing. The geocast protocol adapts to the changing conditions. The herein described distribution of voice via a geocast protocol is applicable to a large variety of devices comprising GPS and WiFi capabilities."

For additional information on this patent, see: Hall, Robert; Jamison, Richard. Media Distribution via a Scalable Ad Hoc Geographic Protocol. U.S. Patent Number 8744419, filed December 15, 2011, and published online on June 3, 2014. Patent URL:

Keywords for this news article include: Technology, AT&T Intellectual Property I L.P..

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Source: Journal of Technology

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