Method to provide ad hoc and password protected digital and voice networks

What is this patent about?

'838 is related to the field of mobile communication systems, particularly those used in ad hoc networks for coordinating activities among a group of users. The background involves scenarios where rapid deployment and coordination are critical, such as emergency response, military operations, or large-scale events. Traditional communication methods often require pre-configuration and knowledge of contact information, which can be cumbersome and time-consuming in dynamic situations.

The underlying idea behind '838 is to enable the rapid formation of a communication network by leveraging a central server to manage user locations and data exchange. Users join a network by providing a group identifier (e.g., an event name and password), and the system automatically shares location and status information among participants. The key inventive insight is to use a georeferenced map interface where users can interact with symbols representing other participants, enabling intuitive communication and coordination.

The claims of '838 focus on a system and method where a device joins a communication network by transmitting a group identifier. The device then sends its location to a server and receives location information from other devices in the group. The device displays a georeferenced map with symbols representing other users, allowing a user to select a symbol and initiate an action (e.g., sending data) to the corresponding device. The claims also cover requesting and displaying different georeferenced map data from a second server.

In practice, the invention allows first responders at a disaster scene to quickly establish a communication network by entering a common event name and password. Each user's device displays a map showing the location of other team members, and users can tap on a team member's icon to send a message or initiate a voice call. The system also supports switching between different map sources, such as satellite imagery or building floor plans, to provide more relevant situational awareness. This eliminates the need for manual contact entry and facilitates real-time coordination.

The invention differentiates itself from prior approaches by providing a seamless and intuitive way to establish and manage ad hoc communication networks. Unlike traditional systems that require pre-configured contact lists or complex setup procedures, '838 enables users to quickly join a network and begin communicating with others based on their location and role. The use of a georeferenced map interface further enhances situational awareness and simplifies communication, making it easier for users to coordinate their activities in dynamic and time-sensitive environments. The ability to switch map data sources adds another layer of adaptability.