According to one embodiment, a magnetic resonance imaging apparatus includes data acquisition circuitry configured to generate magnetic resonance data; a digital encoder connected to receive the magnetic resonance data and configured to digitally encode the magnetic resonance data using an encoding scheme having a spectral null approximately at the Larmor frequency; and an electric data transmission line connected to transmit the digitally encoded magnetic resonance data.

According to one embodiment, a magnetic resonance imaging apparatus includes data acquisition circuitry configured to generate magnetic resonance data; a digital encoder connected to receive the magnetic resonance data and configured to digitally encode the magnetic resonance data using an encoding scheme having a spectral null approximately at the Larmor frequency; and an electric data transmission line connected to transmit the digitally encoded magnetic resonance data.

An integrated densitometer-compensator system for providing a digital indication of the dielectric value and density of a fluid in a tank includes a dielectric capacitive measuring device, a vibrating spool fluid density measuring device, a signal processor, a power supply, and a remote computing device. The signal processor produces a digital signal representing the dielectric value and density of the fluid, and includes a serial driver that transmits the digital signal as a serial word by modulating a carrier signal. An unshielded interface cable transmits the serial word, which can contain a unique identifier, and also provides power to the system. Transmission can be electrically, optically, or wirelessly. The exemplary system measures aviation fuel characteristics in fuel tanks onboard an aircraft.

An integrated densitometer-compensator system for providing a digital indication of the dielectric value and density of a fluid in a tank includes a dielectric capacitive measuring device, a vibrating spool fluid density measuring device, a signal processor, a power supply, and a remote computing device. The signal processor produces a digital signal representing the dielectric value and density of the fluid, and includes a serial driver that transmits the digital signal as a serial word by modulating a carrier signal. An unshielded interface cable transmits the serial word, which can contain a unique identifier, and also provides power to the system. Transmission can be electrically, optically, or wirelessly. The exemplary system measures aviation fuel characteristics in fuel tanks onboard an aircraft.

Aspects of the subject disclosure may include, a coupler having a controller device; and a plurality of conductive members that each have a distal end, a proximal end, and a curved shape. Each of the plurality of conductive members can have an opening through a surface thereof, and each of the plurality of conductive members can be connected to the controller device. The distal end of each of the plurality of conductive members can be farther away from an outer surface of a transmission medium than the proximal end, and a width of each of the plurality of conductive members can increase in a direction from the proximal end to the distal end. The controller device can facilitate transmission of signals via the plurality of conductive members, and the signals can induce electromagnetic waves that propagate along the transmission medium without requiring an electrical return path. Other embodiments are disclosed.

Aspects of the subject disclosure may include, a coupler having a controller device; and a plurality of conductive members that each have a distal end, a proximal end, and a curved shape. Each of the plurality of conductive members can have an opening through a surface thereof, and each of the plurality of conductive members can be connected to the controller device. The distal end of each of the plurality of conductive members can be farther away from an outer surface of a transmission medium than the proximal end, and a width of each of the plurality of conductive members can increase in a direction from the proximal end to the distal end. The controller device can facilitate transmission of signals via the plurality of conductive members, and the signals can induce electromagnetic waves that propagate along the transmission medium without requiring an electrical return path. Other embodiments are disclosed.

Disclosed is an electrical module adapted to operatively connect to a transmission line. The electrical module includes a connection point adapted to connect to a network device. The electrical module is configured to receive a composite signal from the transmission line, the composite signal including a data component and a power component, and to separate the composite signal to extract the data component and the power component. The electrical module is further configured to transmit data to the network device through the connection point, and to supply power to the network device through the connection point. Also disclosed is a telecommunication system and method.

Disclosed is an electrical module adapted to operatively connect to a transmission line. The electrical module includes a connection point adapted to connect to a network device. The electrical module is configured to receive a composite signal from the transmission line, the composite signal including a data component and a power component, and to separate the composite signal to extract the data component and the power component. The electrical module is further configured to transmit data to the network device through the connection point, and to supply power to the network device through the connection point. Also disclosed is a telecommunication system and method.

A first physical layer device includes a first transmitter and a first receiver. The first transmitter transmits first data to a second physical layer device over a medium at a first line rate during a first transmit period. The first receiver is configured to not receive data during the first transmit period and an echo reflection period occurring after the first transmit period. The echo reflection period is based on a length of the medium between the first physical layer device and the second physical layer device. The first receiver is configured to, after the echo reflection period, receive second data from the second physical layer device over the medium at a second line rate that is less than the first line rate.

A first physical layer device includes a first transmitter and a first receiver. The first transmitter transmits first data to a second physical layer device over a medium at a first line rate during a first transmit period. The first receiver is configured to not receive data during the first transmit period and an echo reflection period occurring after the first transmit period. The echo reflection period is based on a length of the medium between the first physical layer device and the second physical layer device. The first receiver is configured to, after the echo reflection period, receive second data from the second physical layer device over the medium at a second line rate that is less than the first line rate.