Patent No. US7812717 (titled "Situational network") on Oct 26, 2007. The application was issued on Oct 12, 2010.
'717 is related to the field of computer networking and social networking, specifically to the formation and maintenance of ad-hoc networks in response to real-world events. The background involves the increasing prevalence of mobile devices and the desire to leverage these devices to share information and coordinate actions during situations like natural disasters, traffic incidents, or social gatherings. Existing social networks are not always suitable for these scenarios because they rely on pre-existing relationships and may not be relevant to the specific situation.
The underlying idea behind '717 is to create a dynamic network of individuals who are affected by a common situation, enabling them to share information and coordinate actions. This is achieved by automatically establishing connections between devices based on a determination that the individuals are affected by the situation. The system facilitates both direct connections to a central authority (e.g., a news agency) and peer-to-peer connections between individuals, allowing for a flexible and resilient network architecture.
The claims of '717 focus on methods and systems for forming a situational network. This includes receiving an indication of a situation, establishing a first set of connections with devices corresponding to individuals affected by the situation, and facilitating a second set of connections between those devices. The claims also cover variations such as using a centralized service to collect and distribute information, periodically updating the connections based on changes in the situation, and determining affected individuals based on their proximity to the situation.
In practice, the invention works by having a situation authority (e.g., a weather service or emergency response agency) detect an event. This triggers the establishment of a central server that collects information about the event. The server then automatically connects to devices belonging to individuals deemed to be affected, perhaps based on location data or pre-existing profiles. These individuals can then share information with each other and with the central authority, creating a dynamic network that adapts to the evolving situation.
This approach differs from prior solutions by creating a network that is situation-aware and dynamically reconfigurable. Traditional social networks rely on pre-existing relationships, while '717 creates connections based on the relevance of the situation. Furthermore, the system can adapt to changes in the situation by adding or removing connections as needed, ensuring that the network remains focused on the individuals who are most affected.
In the mid-2000s when ’717 was filed, mobile data networking was at a time when location-based services were typically implemented using static, pre-defined points of interest rather than dynamic, event-driven peer groups. When systems commonly relied on centralized client-server architectures for information distribution, the coordination of ad-hoc communication between arbitrary mobile users based on a shared external event was limited by existing network protocols. Furthermore, hardware and software constraints made the real-time discovery and automated linking of disparate user devices non-trivial, as mobile platforms often lacked the integrated processing power to autonomously manage complex situational network topologies without significant latency.
The examiner allowed the application primarily because the claims specify a method for building a situational network that facilitates a secondary set of direct connections between user devices. This architecture allows a subset of individuals to exchange event-specific information through these secondary links after an initial connection is established. Additionally, the examiner noted the importance of the system's ability to automatically identify and connect a group of users predicted to be impacted by a specific situation, and to dynamically update these connections and information sets as the situation evolves or as the proximity of users changes over time.
This patent contains 50 claims, with independent claims numbered 1, 7, 18, 22, 25, 26, 32, 43, 46, and 50. The independent claims generally focus on methods and systems for forming situational networks to share information related to a situation among a plurality of users. The dependent claims generally elaborate on the specifics of the connections, information sharing, and user characteristics within these situational networks.
Definitions of key terms used in the patent claims.
US Latest litigation cases involving this patent.

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Get instant alerts for new documents