Abstract: Low data rate, low power, bi-directional transmissions may be provided over existing physical communication media (e.g., coaxial cables) using a portable network communications module and in the presence of higher bandwidth, higher power primary signals currently being transmitted over the communication media. The low data rate, low power, bi-directional transmissions may be accomplished using spread-spectrum modulated signals that are positioned in frequency relative to the primary signals, such that the low data rate, low power transmissions occur without detectable interference with the primary signals, which include multiplexed narrowband modulated signals. The primary signals may be modulated using quadrature amplitude modulation (QAM) and multiplexed using orthogonal frequency division multiplexing (OFDM) and the spread-spectrum modulated signals may be chirp spread spectrum (CSS) modulated signals modulated using Gaussian frequency shift keying (GFSK).

Abstract: Low data rate, low power, bi-directional transmissions may be provided over existing physical communication media (e.g., coaxial cables and/or optical fiber) and in the presence of higher bandwidth, higher power primary signals currently being transmitted over the communication media. The low data rate, low power, bi-directional transmissions may be accomplished using spread-spectrum modulated signals that are positioned in frequency relative to the primary signals, such that the low data rate, low power transmissions occur without detectable interference with the primary signals, which include multiplexed narrowband modulated signals. In some embodiments, the primary signals may be modulated using quadrature amplitude modulation (QAM) and multiplexed using orthogonal frequency division multiplexing (OFDM) and the spread-spectrum modulated signals may be chirp spread spectrum (CSS) modulated signals modulated using Gaussian frequency shift keying (GFSK).

Abstract: Low data rate, low power, bi-directional transmissions may be provided over existing physical communication media (e.g., coaxial cables and/or optical fiber) and in the presence of higher bandwidth, higher power primary signals currently being transmitted over the communication media. The low data rate, low power, bi-directional transmissions may be accomplished using spread-spectrum modulated signals that are positioned in frequency relative to the primary signals, such that the low data rate, low power transmissions occur without detectable interference with the primary signals, which include multiplexed narrowband modulated signals. In some embodiments, the primary signals may be modulated using quadrature amplitude modulation (QAM) and multiplexed using orthogonal frequency division multiplexing (OFDM) and the spread-spectrum modulated signals may be chirp spread spectrum (CSS) modulated signals modulated using Gaussian frequency shift keying (GFSK).

Abstract: The present disclosure is generally directed to utilizing capacitors stacks with capacitors mounted in a terminal-to-terminal mounting orientation to reduce overall footprint of capacitor arrays for bypass filtering circuits. In an embodiment, each capacitor stack includes at least a first capacitor, a second capacitor, and a ground plane interconnect. The first capacitor includes first and second terminals disposed opposite each other. The first terminal provides a mating surface to couple to the second capacitor, the second terminal couples to a ground plane. The second capacitor includes first and second terminals disposed opposite each other. The first terminal provides a mounting surface to electrically couple to and support the first capacitor, and the second terminal provides a mating surface to electrically and physically couple to the ground plane. Accordingly, the first capacitor can be inverted and mounted atop the second capacitor to eliminate the necessity of wire bonds, for example.

Abstract: The present disclosure is generally directed to utilizing capacitors stacks with capacitors mounted in a terminal-to-terminal mounting orientation to reduce overall footprint of capacitor arrays for bypass filtering circuits. In an embodiment, each capacitor stack includes at least a first capacitor, a second capacitor, and a ground plane interconnect. The first capacitor includes first and second terminals disposed opposite each other. The first terminal provides a mating surface to couple to the second capacitor, the second terminal couples to a ground plane. The second capacitor includes first and second terminals disposed opposite each other. The first terminal provides a mounting surface to electrically couple to and support the first capacitor, and the second terminal provides a mating surface to electrically and physically couple to the ground plane. Accordingly, the first capacitor can be inverted and mounted atop the second capacitor to eliminate the necessity of wire bonds, for example.

Abstract: An improved vibrating orthodontic device is provided wherein motor speed is controlled by capacitive sensor, and thus lacks moving parts that are required by encoder use. The improved device also uses a tungsten offset weight, reducing size by more than 50%, yet still produces the needed force. The device is thus smaller, lighter and more robust.

Abstract: A method of performing a seismic sweep determining a user-defined force at a frequency using user defined inputs; determining a maximum force at the frequency using sweep parameters; and using the maximum force to drive a seismic source if the user-defined force is greater than the maximum force.