An antenna system includes an antenna and an antenna control apparatus. The antenna control apparatus includes a control circuit, i.e., a control integrated circuit. The control circuit adjusts and boosts an antenna voltage to supply a required current to the antenna. The antenna voltage is maintained so as not to exceed a predetermined upper limit voltage threshold value. The control circuit is configured to determine a disconnection failure on the antenna when the antenna voltage detected by an overvoltage detection circuit reaches the upper limit voltage threshold value, or is boosted beyond the upper limit voltage threshold value.

Provided are embodiments for circuit for detecting an open-wire condition for a differential input. Embodiments include a sensor, and a line replaceable unit (LRU) coupled to the sensor, wherein the LRU comprises a differential amplifier to provide a sensor output. Embodiments can also include a synchronous demodulator coupled to an output of the differential amplifier through an alternating current (AC) coupling network, wherein the synchronous demodulator is configured to receive the differential amplifier output and a reference signal at the synchronous demodulator signal input and reference input, and provide a synchronous demodulator output voltage to indicate an open-wire condition. Also provided are embodiments of a method for detecting an open-wire condition for a differential input.

An electronic module assembly (EMA) for use in controlling one or more personal restraint systems. A programmed processor within the EMA is configured to determine when a personal restraint system associated with each seat in a vehicle should be deployed. In addition, the programmed processor is configured to perform a diagnostic self-test to determine if the EMA and the personal restraint systems are operational. In one embodiment, results of the diagnostic self-test routine are displayed on a display included on the electronic module assembly. In an alternative embodiment, the results of the diagnostic self-test routine are transmitted via a wireless transceiver to a remote device. The remote device can include a wireless interrogator or can be a remote computer system such as a cabin management computer system.

An electronic module assembly (EMA) for use in controlling one or more personal restraint systems. A programmed processor within the EMA is configured to determine when a personal restraint system associated with each seat in a vehicle should be deployed. In addition, the programmed processor is configured to perform a diagnostic self-test to determine if the EMA and the personal restraint systems are operational. In one embodiment, results of the diagnostic self-test routine are displayed on a display included on the electronic module assembly. In an alternative embodiment, the results of the diagnostic self-test routine are transmitted via a wireless transceiver to a remote device. The remote device can include a wireless interrogator or can be a remote computer system such as a cabin management computer system.

Connection normality check of a pair of electric wires is simplified. A circuit check device 1 that checks connection normality of a pair of electric wires L1 and L2 includes, when the pair of electric wires is connected to an exchange 2, a voltmeter 11 that measures a first inter-wire potential difference between one end of an electric wire portion p1 of the electric wire L1 and one end of an electric wire portion p2 of the electric wire L2, a voltmeter 12 that measures a second inter-wire potential difference between the other end of the electric wire portion p1 of the electric wire L1 and the other end of the electric wire portion p2 of the electric wire L2, and a determiner 13 that determines whether the measured first inter-wire potential difference agrees with the measured second inter-wire potential difference.

Apparatuses and techniques are presented for detecting bit line open circuits and short circuits in a memory device in which a memory die is inverted and bonded to a control die. In one approach, the control die comprises a set of bit lines which are connected to a set of bit lines of the memory die, and the set of bit lines of the control die comprise ground transistors, e.g., transistors connected to a ground node. Ground transistors of even-numbered bit lines may be commonly controlled, while ground transistors of odd-numbered bit lines are commonly controlled. The ground transistors may be controlled to detect open circuits and short circuits in the bit lines of the control die and the memory die. A laser scanning technique can also be used to determine a physical location of a defect of a bit line.

An apparatus for smart frequency selection in a ground monitor apparatus is disclosed. The apparatus includes an energy measurement circuit that measures an energy level at a test frequency in an equipment grounding conductor between a load and a power source and an energy comparator that compares the measured energy level with an energy threshold. The apparatus includes a continuity signal circuit that injects a continuity signal with a frequency at the test frequency in the equipment grounding conductor at an energy level above the energy threshold in response to the energy comparator determining that the measured energy level is below the energy threshold. The continuity signal is an indicator for continuity of the equipment grounding conductor between the power source and load.

An apparatus for smart frequency selection in a ground monitor apparatus is disclosed. The apparatus includes an energy measurement circuit that measures an energy level at a test frequency in an equipment grounding conductor between a load and a power source and an energy comparator that compares the measured energy level with an energy threshold. The apparatus includes a continuity signal circuit that injects a continuity signal with a frequency at the test frequency in the equipment grounding conductor at an energy level above the energy threshold in response to the energy comparator determining that the measured energy level is below the energy threshold. The continuity signal is an indicator for continuity of the equipment grounding conductor between the power source and load.

A combiner lens system includes a lens and a lightguide in stack with the lens. The lightguide carries one or more electrically conductive traces. A detector circuit is electrically coupled to the one or more electrically conductive traces to form an electrical circuit. The detector circuit monitors the electrical circuit for an open circuit or a short circuit and generates an output signal that is indicative of a state of the electrical circuit.

A power receiving apparatus includes a determination unit and a display unit. The determination unit determines whether or not each of a power transmitting apparatus and a cable connected to the power receiving apparatus meets a predetermined condition relating to safety of power transmission. The display unit displays first information indicating that the power transmitting apparatus does not meet the predetermined condition in a case where the power transmitting apparatus does not meet the predetermined condition. The display unit displays second information indicating that the cable does not meet the predetermined condition in a case where the cable does not meet the predetermined condition.