A method of powering a controller using an intermediate device with power from an environmental system may include receiving current from a power wire from the environmental system; passing the current from the power wire to a second command wire from the controller; monitoring the current flowing between the power wire and the second command wire while the current is below a threshold indicative of an amount of current used to power the controller from the environmental system; detecting when the current flowing between the power wire and the second command wire exceeds the threshold indicating that the controller is sending a command to the environmental system to perform the function; and sending a command to environmental system using a first command wire from the environmental system after detecting that the current exceeds the threshold.

A method of communication along a shared voltage line is disclosed. In pulse power drilling, a generator charges applies voltage to a shared voltage line, which capacitively charges electrodes for formation drilling. While the generator controls the charging rate, charge voltage, and post-delay time between the charging cycles, a pulse power controller determines the pre-delay time by firing electrodes to discharge the stored voltage. Communication from the pulse power controller to the generator is encoded in the pre-delay time, where pre-delay times longer than a minimum pre-delay time correspond to time bins with pre-determined communications between the pulse power controller and the generator. The generator can also communicate to the pulse power controller via manipulation of the post-delay time.

An on-off keying (OOK) receiver circuit includes a band-pass filter and an envelope detector. The band-pass filter includes a high-pass filter, a low-pass filter, and a switch. The high-pass filter is configured to filter an OOK input signal. The low-pass filter is configured to filter an output signal of the high-pass filter. The switch is coupled to an output of the high-pass filter, and is configured to, with each cycle of the OOK input signal, dissipate energy stored in the band-pass filter. The envelope detector is configured to receive a filtered OOK input signal from the band-pass filter, and to generate an OOK output signal based on the filtered OOK input signal.

In a powerline communications (PLC) network having a first node and at least a second node on a PLC channel utilizing a band including a plurality of tones, based on at least one channel quality indicator (CQI), the first node allocates for a tone map response payload only a single (1) power control bit for each of a plurality of subbands having two or more tones. The power control bit indicates a first power state or a second power state. The first node transmits a frame including the tone map response payload to the second node. The second node transmits a frame having boosted signal power for the tones in the subbands which have the first power state compared to a lower signal power for the tones in the subbands which have the second power state.

A system for co-transmitting discrete power and data over a common high frequency channel includes a power transmitting node, a power receiving node, a data transmitting node, a data receiving node, a power transmitting switch, a power receiving switch, a data transmitting switch, a data receiving switch, a primary power switch, a secondary power switch, a common high frequency channel, a first control unit, and a second control unit. When the primary power switch, power transmitting switch, and power receiving switch are in an activated state, a power signal is transmitted over the common high frequency channel from the power transmitting node to the power receiving node. When the secondary power switch, data transmitting switch, and data receiving switch are in an activated state, a data signal is transmitted over the common high frequency channel from the data transmitting node to the data receiving node.

Disclosed herein are two-wire communication systems and applications thereof. In some embodiments, a slave node transceiver for low latency communication may include upstream transceiver circuitry to receive a first signal transmitted over a two-wire bus from an upstream device and to provide a second signal over the two-wire bus to the upstream device; downstream transceiver circuitry to provide a third signal downstream over the two-wire bus toward a downstream device and to receive a fourth signal over the two-wire bus from the downstream device; and clock circuitry to generate a clock signal at the slave node transceiver based on a preamble of a synchronization control frame in the first signal, wherein timing of the receipt and provision of signals over the two-wire bus by the node transceiver is based on the clock signal.

Systems and methods are disclosed for an integrated circuit (IC) comprising an oscillator, an on-off-keying modulator configured to modulate input data coupled to the oscillator, a serial communications transmitter coupled to the on-off-keying modulator, a serial communications receiver coupled to the serial communications transmitter by a set of cables, and an envelope detector coupled to the serial communications receiver. In the IC, power and data are simultaneously delivered across the same set of cables from the serial communications transmitter to the serial communications receiver.

Provided are method, apparatus and device for controlling dual-mode communication, and non-transitory computer readable storage medium. The method applied to a first communication node includes: establishing a communication connection with at least one target communication node in a target communication network through a wired communication protocol, to obtain a wired communication data packet; extracting wireless communication configuration information pre-stored in the wired communication data packet; and configuring a wireless communication port based on the wireless communication configuration information.

In a system for wirelessly transmitting electric power and data, communication quality is improved. A transfer module is for use as a power transmitting module or a power receiving module in a wireless power/data transfer apparatus that wirelessly transmits electric power and data between a power transmitting module and a power receiving module. The transfer module includes: an antenna that performs power transmission or power reception via magnetic field coupling or electric field coupling; a differential transmission line pair to perform transmission or reception via electric field coupling; and a shielding part being located between the antenna and the differential transmission line pair to reduce electromagnetic interference between the antenna and the differential transmission line pair.

A system may include a transmitter, a receiver, a cable coupled between the transmitter and the receiver and having two wires for communicating a differential signal from the transmitter to the receiver, and a direct-current (DC) voltage source coupled to a first wire of the two wires of the cable and configured to apply a variable DC offset voltage to the first wire in order to vary an impedance of the cable as a function of the variable DC offset voltage.