Abstract: A continuously tunable radio frequency (RF) sensor system is provided. The system includes a pump laser system that includes first and second pump lasers, at least one frequency modulator to modulate frequencies of first and second laser light from the pump lasers to first and second select frequencies, a switch system to selectively pass one of the first and second laser light, an amplifier to amplify the passed laser light, a frequency doubler to double the frequency of the amplified laser light to generate pump light. A laser source lock system is in communication with the pump laser system to ensure a frequency of the pump light is referenced to atoms in a vapor cell and provide a probe light. The pump light and probe light are transmitted through the vapor cell. A detector measures the probe light that passed through the vapor cell.

Abstract: Embodiments describe a method for capturing objects in action at an earthmoving site. The method includes capturing an image of a region of the earthmoving site including an object, the image being recorded as captured digital data; identifying a classification of the object using a trained algorithm existing in memory of the image capturing device; sending the classification of the object to a remote server through a network; determining a pixel location and a boundary of the object within a field of view of the image capturing device based on positions of pixels of the object in the image; sending a set of images including the image to the remote server; determining an activity being performed by the object based on an analysis of digital data associated with the classification of the object and the movement of the object at the earthmoving site; and outputting a report to a user.

Abstract: A system for encoding a sequence of frames of a data signal. The system comprises: a first encoding system comprising at least: a first encoder configured to encode the sequence of frames according to a first encoding algorithm; and a first rate control unit configured to control a first bit rate at which the first encoder encodes said sequence of frames; a second encoding system comprising at least: a second encoder configured to encode a second sequence of frames associated with the sequence of frames according to a second encoding algorithm; and a second rate control unit configured to control a second bit rate at which the second encoder encodes said second sequence of frames associated with the sequence of frames.

Abstract: A system for encoding a sequence of frames (171) of a data signal. The system comprises: a first encoding system (120) comprising at least: a first encoder (130) configured to encode the sequence of frames (171) according to a first encoding algorithm; and a first rate control unit (135) configured to control a first bit rate at which the first encoder (130) encodes said sequence of frames (171); a second encoding system (100) comprising at least: a second encoder (116) configured to encode a second sequence of frames (175) associated with the sequence of frames (171) according to a second encoding algorithm; and a second rate control unit (135) configured to control a second bit rate at which the second encoder (130) encodes said second sequence of frames (175) associated with the sequence of frames (171).

Abstract: A system for encoding a sequence of frames (171) of a data signal. The system comprises: a first encoding system (120) comprising at least: a first encoder (130) configured to encode the sequence of frames (171) according to a first encoding algorithm; and a first rate control unit (135) configured to control a first bit rate at which the first encoder (130) encodes said sequence of frames (171); a second encoding system (100) comprising at least: a second encoder (116) configured to encode a second sequence of frames (175) associated with the sequence of frames (171) according to a second encoding algorithm; and a second rate control unit (135) configured to control a second bit rate at which the second encoder (130) encodes said second sequence of frames (175) associated with the sequence of frames (171).

Abstract: A system for encoding a sequence of frames (171) of a data signal. The system comprises: a first encoding system (120) comprising at least: a first encoder (130) configured to encode the sequence of frames (171) according to a first encoding algorithm; and a first rate control unit (135) configured to control a first bit rate at which the first encoder (130) encodes said sequence of frames (171); a second encoding system (100) comprising at least: a second encoder (116) configured to encode a second sequence of frames (175) associated with the sequence of frames (171) according to a second encoding algorithm; and a second rate control unit (135) configured to control a second bit rate at which the second encoder (130) encodes said second sequence of frames (175) associated with the sequence of frames (171).

Abstract: A system for encoding a sequence of frames (171) of a data signal. The system comprises: a first encoding system (120) comprising at least: a first encoder (130) configured to encode the sequence of frames (171) according to a first encoding algorithm; and a first rate control unit (135) configured to control a first bit rate at which the first encoder (130) encodes said sequence of frames (171); a second encoding system (100) comprising at least: a second encoder (116) configured to encode a second sequence of frames (175) associated with the sequence of frames (171) according to a second encoding algorithm; and a second rate control unit (135) configured to control a second bit rate at which the second encoder (130) encodes said second sequence of frames (175) associated with the sequence of frames (171).

Abstract: A method of synchronizing the phase of a local image synchronization signal generator of a local video data processor in communication with an asynchronous switched packet network to the phase of a reference image synchronization signal generator of a reference video data processor also coupled to the network, the local and reference processors having respective clocks, the reference and local image synchronization signal generators generating periodic image synchronization signals in synchronism with the reference and local clocks respectively including: frequency synchronizing the local and reference clocks; sending an image timing packet providing reference image synchronization data indicating the difference in timing, measured with respect to the reference processor's clock, between the time at which the image timing packet is launched onto the network and the time of production of a reference image synchronization signal; and controlling the timing of the production of the local image synchronization si

Abstract: A method of synchronizing the phase of a local image synchronization signal generator of a local video data processor in communication with an asynchronous switched packet network to the phase of a reference image synchronization signal generator of a reference video data processor also coupled to the network, the local and reference processors having respective clocks, the reference and local image synchronization signal generators generating periodic image synchronization signals in synchronism with the reference and local clocks respectively including: frequency synchronizing the local and reference clocks; sending an image timing packet providing reference image synchronization data indicating the difference in timing, measured with respect to the reference processor's clock, between the time at which the image timing packet is launched onto the network and the time of production of a reference image synchronization signal; and controlling the timing of the production of the local image synchronization si

Abstract: A method of synchronizing the phase of a local image synchronization signal generator of a local video data processor in communication with an asynchronous switched packet network to the phase of a reference image synchronization signal generator of a reference video data processor also coupled to the network, the local and reference processors having respective clocks, the reference and local image synchronization signal generators generating periodic image synchronization signals in synchronism with the reference and local clocks respectively comprises the steps of: frequency synchronizing the local and reference clocks; the reference video data processor sending, via the network, to the local data processor an image timing packet providing reference image synchronization data indicating the difference in timing, measured with respect to the reference processor's clock, between the time at which the image timing packet is launched onto the network and the time of production of a reference image synchroni

Abstract: A video data network device arranged to receive a video signal and an associated synchronisation signal and to launch video data packets representing the video signal onto a packet-based data network comprises means for detecting whether the video signal is synchronised with the synchronisation signal; and means for launching data onto the network indicating whether the video signal is synchronised with the synchronisation signal.

Abstract: A network interface device connectable to a network, the device being arranged to receive digital audio data representing an audio signal and, substantially in real time, to launch data packets representing the digital audio data onto the network, the device comprising: an attribute detector arranged to generate attribute data representing an attribute of the audio signal; and a packetiser operable: to format the digital audio data into audio data packets to be launched onto the network; and to format the attribute data into attribute data packets, separate from the audio data packets, to be launched onto the network.

Abstract: The frequency of a local clock of a local data processor in communication with an asynchronous switched packet network is synchronized to the frequency of a reference clock of a source data processor also coupled to the network. Timing packets each including a field containing the destination address of the local processor and a field containing reference clock data indicating the time at which the packet is launched onto the network are sent to the local data processor from the source data processor across the network. The frequency of the local clock is controlled in dependence on the reference clock data and the times of arrival of the packets.

Abstract: A network interface connectable to a packet-based data network on which a plurality of different types of payload data are distinguished by network-based packet header data; comprises: a plurality of data handling nodes; and a routing arrangement responsive to a packet identifier for routing data packets between the data handling nodes; in which: one of the data handling nodes is a network processor for receiving data packets from and transmitting data packets to the packet-based network; the network processor being operable: a) in the case of a data packet received from the data network, to detect the type of payload data from the network-based packet header data; to remove the network-based packet header data from the packet; and to associate with the packet an identifier which specifies a route across the routing arrangement to a target data handling node and a data handling operation to be carried out by the target data handling node; and b) in the case of a data packet received from another data handl

Abstract: A network interface device connectable to a network, the device being arranged to receive digital audio data representing an audio signal and, substantially in real time, to launch data packets representing the digital audio data onto the network, the device comprising: an attribute detector arranged to generate attribute data representing an attribute of the audio signal; and a packetiser operable: to format the digital audio data into audio data packets to be launched onto the network; and to format the attribute data into attribute data packets, separate from the audio data packets, to be launched onto the network.

Abstract: A video network comprises: a plurality of video sources to launch onto the network first, higher resolution, video data and second, lower resolution, video data providing a lower resolution representation of the higher resolution video data; at least one destination device operable to process video received via the network; a network switch for selectively routing data from the video sources to the destination devices; and a network control arrangement connected to the network switch and having: a display device; a graphical user interface (GUI) arranged to display, on the display device, the lower resolution representations of video data from at least a subset of the plurality of sources together with identifiers associating the lower resolution representations with the respective sources; means for user selection, by use of the GUI, of a source of video of the higher resolution and a corresponding destination device; and means for controlling the routing of the higher resolution video data from the selected

Abstract: A video data network device arranged to receive a video signal and an associated synchronisation signal and to launch video data packets representing the video signal onto a packet-based data network comprises means for detecting whether the video signal is synchronised with the synchronisation signal; and means for launching data onto the network indicating whether the video signal is synchronised with the synchronisation signal.

Abstract: A method of synchronising the phase of a local image synchronisation signal generator of a local video data processor in communication with an asynchronous switched packet network to the phase of a reference image synchronisation signal generator of a reference video data processor also coupled to the network, the local and reference processors having respective clocks, the reference and local image synchronisation signal generators generating periodic image synchronisation signals in synchronism with the reference and local clocks respectively comprises the steps of:

Abstract: A network interface device connectable to a network, the device being arranged to receive a digital video data stream of a first resolution and, substantially in real time, to launch data packets representing the digital video data stream onto the network, comprises:

Abstract: A network interface connectable to a packet-based data network on which a plurality of different types of payload data are distinguished by network-based packet header data; comprises: