Abstract: Systems and methods for extracting and identifying timing information from wireless signals can include a signal receiver configured to receive a communications signal; a finite impulse response (FIR) filter coupled to the signal receiver and configured to identify a set of transitions in the communications signal; an absolute value operation module coupled to the FIR filter and configured to detect energy in each of the set of transitions within the communications signal; and a comb filter coupled to the absolute value operation module and configured to combine the detected energy in each of the set of transitions within the communications signal. Exemplary systems can also include a cyclic accumulator coupled to the comb filter and a signal processor.

Abstract: Systems and methods for extracting and identifying timing information from wireless signals can include a signal receiver configured to receive a communications signal; a finite impulse response (FIR) filter coupled to the signal receiver and configured to identify a set of transitions in the communications signal; an absolute value operation module coupled to the FIR filter and configured to detect energy in each of the set of transitions within the communications signal; and a comb filter coupled to the absolute value operation module and configured to combine the detected energy in each of the set of transitions within the communications signal. Exemplary systems can also include a cyclic accumulator coupled to the comb filter and a signal processor.

Abstract: An apparatus that measures elapsed time in digital systems with multiple clocks includes a vernier reference (VREF) configured to generate a reference counter signal with a numeric output and two reference clock signals. The apparatus also includes a plurality of synchronizer VPLLs configured to receive the reference counter signal and the two reference clock signals and generate a plurality of synchronized counters, each synchronized counter being co-linear with the reference counter and operating in a respective target clock domain.

Abstract: A tracking system includes one or more cameras and machine-vision processors configured to track the position of a plurality of optical tracking emitters. Each of the plurality of tracking emitters is modulated with a message. The message includes identification information for any of the plurality of tracking cameras receiving the message, so that the cameras can track the location of each emitter.

Abstract: An apparatus that measures elapsed time in digital systems with multiple clocks includes a vernier reference (VREF) configured to generate a reference counter signal with a numeric output and two reference clock signals. The apparatus also includes a plurality of synchronizer VPLLs configured to receive the reference counter signal and the two reference clock signals and generate a plurality of synchronized counters, each synchronized counter being co-linear with the reference counter and operating in a respective target clock domain.

Abstract: A tracking system includes one or more cameras and machine-vision processors configured to track the position of a plurality of optical tracking emitters. Each of the plurality of tracking emitters is modulated with a message. The message includes identification information for any of the plurality of tracking cameras receiving the message, so that the cameras can track the location of each emitter.

Abstract: A mixed-media Ethernet switch (the “switch”) is configured to allow a variety of devices to communicate on a given network. The switch includes a plurality of ports. Each of the plurality of ports are configured to connect with, and communicate with, a corresponding traditional medium or non-traditional medium.

Abstract: A mixed-media Ethernet switch (the “switch”) is configured to allow a variety of devices to communicate on a given network. The switch includes a plurality of ports. Each of the plurality of ports are configured to connect with, and communicate with, a corresponding traditional medium or non-traditional medium.

Abstract: A tracking system includes one or more modulated projectors configured to broadcast a plurality of signals to a plurality of tracking receivers. Each of the plurality of signals is modulated with a message. The message includes positioning information for any of the plurality of tracking receivers receiving the message. The positioning information identifies a location of one or more the tracking receivers able to receive that message.

Abstract: A tracking system includes one or more modulated projectors configured to broadcast a plurality of signals to a plurality of tracking receivers. Each of the plurality of signals is modulated with a message. The message includes positioning information for any of the plurality of tracking receivers receiving the message. The positioning information identifies a location of one or more the tracking receivers able to receive that message.