Abstract: There is provided a simulation-based Computer Generated Force (CGF) system for tactical training in a training field including a receiver for receiving information on the training field, a database for storing a library of CGF behaviours for one or more robots in the training field, a CGF module, coupled with the receiver and the database, for processing the information on the training field and selecting a behaviour for each of the one or more robots in the training field from the library of CGF behaviours stored in the database, a controller, coupled with the CGF module, for sending commands based on the selected behaviours to the one or more robots in the training field. The information on the training field includes location of one or more trainees and the commands include shooting the one or more trainees.

Abstract: A control moment gyroscope (CMG) module for use in a satellite comprising a CMG, the CMG comprising a flywheel assembly mounted on a gimbal assembly, the flywheel assembly comprising a flywheel rim, a flywheel spokes member and a flywheel shaft, the flywheel rim circumscribing the flywheel shaft, and the flywheel spokes member extending between the flywheel shaft and the flywheel rim. The gimbal assembly comprises at least one gimbal and a spin motor, the spin motor for rotating the flywheel assembly about a first axis. The CMG further comprises a torque shaft and a torque motor for rotating the at least one gimbal about a second axis. The CMG module further comprises a hermetic first shell housing; and a hermetic second shell housing; wherein the second shell housing is joined to the first shell housing by a hermetic seal to form an airtight interior of the CMG module, the interior of the CMG module containing the CMG.

Abstract: The present invention relates to an information management system, and in particular to a portable information management device. The device includes a housing having a first surface and a second surface, said first and second surfaces securely enclosing electronic componentry of the device, wherein the electronic componentry includes: a data storage device for storing information about a person or asset; and a processor for transferring the information from the data storage device to an external device via a communication means, wherein the communication means includes: an antenna to allow contactless transfer of the information; and an input/output interface to allow transfer of the information via physical means.

Abstract: A voice-over-internet system and method is disclosed which comprises a gateway (40) and a separate remote gateway (50) which can each provide signals between a radio (12) and a user terminal (24) via the internet (22). If one of the gateways fails, the other gateway is able to take over the communication role. Data is synchronised between the gateways and a polling protocol is used to determine whether one of the gateways remains active or whether the other gateway should assume the active role.

Abstract: A grid-based transmission system for determining relative positions of vehicles in a grid quadrangle of a reference grid, each vehicle having a transmitter and a receiver, comprising determining an absolute position of a vehicle. A reference grid is obtained. A reference point for the reference grid is assigned; and a relative position of the vehicle relative to the reference point is generated. The reference grid is a stored and previously generated reference grid, or is generated based on the absolute position and a transmission range of a transmitter. The vehicle sends a position message containing the relative position; the transmission range; an identity of the vehicle; an identity for all other vehicles that have previously sent a position message received by the vehicle; and the relative position of the all other vehicles.

Abstract: A grid-based transmission system for determining relative positions of vehicles in a grid quadrangle of a reference grid, each vehicle having a transmitter and a receiver, comprising determining an absolute position of a vehicle. A reference grid is obtained. A reference point for the reference grid is assigned; and a relative position of the vehicle relative to the reference point is generated. The reference grid is a stored and previously generated reference grid, or is generated based on the absolute position and a transmission range of a transmitter. The vehicle sends a position message containing the relative position; the transmission range; an identity of the vehicle; an identity for all other vehicles that have previously sent a position message received by the vehicle; and the relative position of the all other vehicles.

Abstract: A method for communication between a number of participants in a region, the number of participants being unlimited, the method comprising the steps: (a) allocating a unique identity to each participant; (b) allocating an order of priority for transmission by the participants based on an order of the unique identities; and (c) in each transmission of each participant there is included: (i) the unique identity of the participant; and (ii) a list of unique identities of all participants in the region.

Abstract: Method for predicting a future position of an aircraft based on the physical characteristics of the aircraft, and by monitoring aircraft manoeuvres, the system analyzes pilot controls movements to predict future pilot control movements. The set of such future commands are fed to a 6-Degree Of Freedom (DOF) simulation to enable the determination of future aircraft position. A corresponding system is also disclosed.

Abstract: A portable satellite antenna terminal, comprising a body (620) and a unit (637) within the body (620) for controlling the terminal and terminal functions. Also provided is an antenna (607) mounted to the body (620) for movement (633, 635) relative thereto. The antenna (607) is able to be stowed within the body (620) when not in use. The antenna (607) may be a flat panel antenna (624) and is moveable relative to the body (620) from a stowed position to an in-use position.

Abstract: The present invention provides a wireless communications system comprising a first radio transceiver configured to communicate on a first radio channel, a second radio transceiver configured to communicate on a second radio channel, a first base transceiver unit (BTU) configured to communicate with the first radio transceiver, a second BTU configured to communicate with the second radio transceiver, and a client transceiver unit (CTU) configured to communicate with both the first BTU and the second BTU. The CTU is thereby configured to communicate on the first radio channel via the first radio transceiver and the first BTU. The CTU is also configured to communicate on the second radio channel via the second radio transceiver and the second BTU. The CTU comprises at least one speaker for enabling a user to listen to communications on the first and second radio channels concurrently.

Abstract: A voice over internet method and system is disclosed to enable radio devices to initiate or terminate a session initiation protocol for transmission of audio data over the internet. A gateway (12) is provided which includes a processor (50) and a software layer (70) to enable signals other than conventional off-hook and on-hook signals to initiate a session. The processor (50) and software (70) detect a control signal which includes data to identify the signal as a request to initiate or terminate a session. The control signal may have a control tone followed by at least one signal tone followed by one further control tone. The control tones represent the data identifying the signal as a request to initiate or terminate a session, and the signal tone identifies the end destination of the call.

Abstract: Techniques for providing a redundant power supply for an Ethernet device are provided. A first flyback switching regulator draws power from a first Ethernet port. A second flyback switching regulator draws power from a second Ethernet port. Drawn power is regulated by each regulator and sent to a power combiner. The power combiner combines power from each regulator and supplies the combined power to the Ethernet device.