Abstract: A satellite communication system may include a constellation of cross-linked orbiting satellites, and an earth station gateway that includes an Internet port. Mobile wireless devices each include a satellite transceiver and a WiFi transceiver configured to communicate with another WiFi transceiver, in turn, configured to communicate with the Internet port. The mobile wireless device may also include a controller configured to communicate with other members of a respective push-to-talk (PTT) group via the satellite transceiver when a satellite link is available, communicate with the other members of the respective push-to-talk (PTT) group via the WiFi transceiver when a WiFi link is available and the satellite link is not available, maintain a first existing PTT call when switching from the satellite link to the WiFi link, and maintain a second existing PTT call when switching from the WiFi link to the satellite link.

Abstract: A satellite communication system may include a constellation of cross-linked orbiting satellites and a network manager that maintains a database of push-to-talk (PTT) groups. A plurality of mobile wireless devices may each include a satellite transceiver and a WiFi transceiver. The mobile wireless device may each also include a controller configured to communicate with other members of a respective PTT group via the satellite transceiver when a satellite link is available, determine at least one ad hoc network link with an adjacent mobile wireless device using the WiFi transceiver, and communicate with the other members of the respective PTT group via the at least one ad hoc network link when the satellite link is not available.

Abstract: Provided is a mobile satellite transceiver system for communicating with a Global Positioning System (GPS) satellite and a communications satellite. In on implementation, the mobile satellite transceiver system includes a GPS receiver configured to receive communications from the GPS satellite, a satellite modem configured to transmit and receive communications from the communications satellite, and an operating system. In some implementations, the operating system of the mobile satellite transceiver system is configured to send and receive text messages to/from the communications satellite via the satellite modem. In some implementations the mobile satellite transceiver system also includes a Radio Frequency Identification (RFID) interrogator for communicating with RFID tags.

Abstract: Provided is a mobile satellite transceiver system for communicating with a Global Positioning System (GPS) satellite and a communications satellite. In on implementation, the mobile satellite transceiver system includes a GPS receiver configured to receive communications from the GPS satellite, a satellite modem configured to transmit and receive communications from the communications satellite, and an operating system. In some implementations, the operating system of the mobile satellite transceiver system is configured to send and receive text messages to/from the communications satellite via the satellite modem. In some implementations the mobile satellite transceiver system also includes a Radio Frequency Identification (RFID) interrogator for communicating with RFID tags.

Abstract: Provided is a mobile satellite transceiver system for communicating with a Global Positioning System (GPS) satellite and a communications satellite. In on implementation, the mobile satellite transceiver system includes a GPS receiver configured to receive communications from the GPS satellite, a satellite modem configured to transmit and receive communications from the communications satellite, and an operating system. In some implementations, the operating system of the mobile satellite transceiver system is configured to send and receive text messages to/from the communications satellite via the satellite modem. In some implementations the mobile satellite transceiver system also includes a Radio Frequency Identification (RFID) interrogator for communicating with RFID tags.

Abstract: Provided is a mobile satellite transceiver system for communicating with a Global Positioning System (GPS) satellite and a communications satellite. In on implementation, the mobile satellite transceiver system includes a GPS receiver configured to receive communications from the GPS satellite, a satellite modem configured to transmit and receive communications from the communications satellite, and an operating system. In some implementations, the operating system of the mobile satellite transceiver system is configured to send and receive text messages to/from the communications satellite via the satellite modem. In some implementations the mobile satellite transceiver system also includes a Radio Frequency Identification (RFID) interrogator for communicating with RFID tags.