Abstract: A device and method selects an antenna configuration. The method performed at a user equipment includes determining at least one communication functionality that is being used, each communication functionality configured to utilize at least one antenna in a multi-antenna arrangement of the user equipment. The method includes receiving a first indication of whether a cellular communication functionality is being used, the cellular communication functionality configured to utilize at least one antenna in the multi-antenna arrangement. The method includes receiving a second indication of whether a coexistence condition is present. The method includes determining an antenna configuration for the multi-antenna arrangement to be used by the determined communication functionality based upon the determined communication functionality, the first indication, and the second indication.

Abstract: A detection circuit for an AC-to-AC power converter includes a voltage divider circuit that has three AC input terminal coupled respectively to three input ends of a power converter which are to receive respectively three AC input power signals with different phases, and that receives a predetermined first reference voltage. Upon receiving one AC input power signal, the voltage divider circuit outputs a divided voltage, which during an active period of the one AC input power signal, is greater than a predetermined second reference voltage, to a comparator, which also receives the predetermined second reference voltage, such that the comparator outputs a detection signal that is in an active state when the one AC input power signal is.

Abstract: A phase-locked loop circuit includes a phase detector, a charge pump, a capacitor, and a capacitor multiplier. The phase detector receives a reference frequency and a feedback frequency to generate a up/down signal. The charge pump, which includes a positive node and a negative node, receives the up/down signal to generate a first current. The capacitor is coupled to the negative node. The capacitor multiplier, coupled to the negative node, generates a second current which is the first current divided by a first scaling number.

Abstract: A phase-locked loop circuit includes a phase detector, a charge pump, a capacitor, and a capacitor multiplier. The phase detector receives a reference frequency and a feedback frequency to generate a up/down signal. The charge pump, which includes a positive node and a negative node, receives the up/down signal to generate a first current. The capacitor is coupled to the negative node. The capacitor multiplier, coupled to the negative node, generates a second current which is the first current divided by a first scaling number.

Abstract: A voltage-controlled oscillator gain measurement system includes a voltage-controlled oscillator, a voltage detector, and a processor. The voltage-controlled oscillator, which is configured in a phase-locked loop circuit, generates an output signal with an output frequency according to a control signal. The control signal is generated according to the output signal divided by a scaling number. The voltage detector is configured to measure a voltage difference of the control signal. The processor adjusts the scaling number to generate an output frequency difference of the output signal, and obtains a reciprocal gain of the voltage-controlled oscillator by dividing the voltage difference by the output frequency difference.

Abstract: Chipless RFID nanotube tags (300, 400, 500, 600, 700, 800, 900) with anti-counterfeiting capability are designed into one piece, mostly two pieces, three pieces, or multiple pieces of nanotube antenna elements on at least two dielectric substrates (310/312, 510/512, 810/812, 910/912/913/916 etc.) for providing brand product protection, authorization, anti-counterfeiting, and even recycling, and tag process control purposes.

Abstract: A vehicle safeguard device includes a setting unit, which is operative to set a vehicle that is in a parked state in a safeguard state; a detection unit, which is electrically connected to the setting unit to detect a horizon state and a signal interrupted state of the vehicle when the vehicle is in the safeguard state; a sensing unit, which receives the horizon state and the signal interrupted state of the vehicle detected by the detection unit; and a signal processing and control unit, which is electrically connected to the sensing unit to receive an abnormality signal of the horizon state and the signal interrupted state of vehicle sensed by the sensing unit and convert the abnormality signal into an alarm signal and transmit the alarm signal to an external management center.

Abstract: A fan light apparatus comprises: a ceiling mount disk; a light frame, coupled to the ceiling mount disk; a lamp, fixed onto the light frame; a fan installing case, installed to the bottom of the light frame; a fan motor, installed in the fan installing case; a vane, pivotally coupled to the fan motor spindle; a support, movably coupled to an internal side of the bottom of the fan installing case; a wind-guide fan motor, fixed to the center of the support; a wind-guide vane, sheathed on a spindle of the wind-guide fan motor; a latch, pivotally coupled to the spindle of the wind-guide fan motor for supporting the wind-guide vane; and an anion generator, installed in a space between the vane and the wind-guide vane.

Abstract: High-speed transceiver devices, such as GBIC-type transceivers, are accessed and addressed. Identification information (including manufacturer name, model, compliance codes) is placed in data fields of the transceivers. An algorithm checks each port in each module of a host system to determine if a transceiver is present. If a particular transceiver is present, then algorithms store the port address of the transceiver in memory and enable the transceiver to be read from or written to. Reading from the transceiver includes reading the identification information, and writing to the transceiver includes writing the identification information. If a transceiver is initially determined not to be present or if the reading/writing/enabling processes fail, then a recovery process determines if the transceiver was present the last time it was checked. If it was present the last time, then the process continues to try to recover the transceiver data—otherwise, the port is marked as empty.

Abstract: A fan light apparatus comprises: a ceiling mount disk; a light frame, coupled to the ceiling mount disk; a lamp, fixed onto the light frame; a fan installing case, installed to the bottom of the light frame; a fan motor, installed in the fan installing case; a vane, pivotally coupled to the fan motor spindle; a support, movably coupled to an internal side of the bottom of the fan installing case; a wind-guide fan motor, fixed to the center of the support; a wind-guide vane, sheathed on a spindle of the wind-guide fan motor; a latch, pivotally coupled to the spindle of the wind-guide fan motor for supporting the wind-guide vane; and an anion generator, installed in a space between the vane and the wind-guide vane.

Abstract: High-speed transceiver devices, such as GBIC-type transceivers, are accessed and addressed. Identification information (including manufacturer name, model, compliance codes) is placed in data fields of the transceivers. An algorithm checks each port in each module of a host system to determine if a transceiver is present. If a particular transceiver is present, then algorithms store the port address of the transceiver in memory and enable the transceiver to be read from or written to. Reading from the transceiver includes reading the identification information, and writing to the transceiver includes writing the identification information. If a transceiver is initially determined not to be present or if the reading/writing/enabling processes fail, then a recovery process determines if the transceiver was present the last time it was checked. If it was present the last time, then the process continues to try to recover the transceiver data—otherwise, the port is marked as empty.

Abstract: An endurance testing system is configured to test endurance of a first detecting apparatus. The endurance testing system includes a second detecting apparatus, a movement module, a processor, and a storage module. The movement module includes a first inductive object and a second inductive object. The processor is connected to the first and second detecting apparatuses, and the movement module, for controlling the movement module and counting a first number of times the first detecting apparatus detects the first inductive object, and a second number of times the second detecting apparatus detects the second inductive object. The storage module is connected to the processor, for storing the first and second numbers of times from the processor. The first detecting apparatus fails the testing upon the condition that the first number of times is not equal to the second number of times.

Abstract: High-speed transceiver devices, such as GBIC-type transceivers, are accessed and addressed. Identification information (including manufacturer name, model, compliance codes) is placed in data fields of the transceivers. An algorithm checks each port in each module of a host system to determine if a transceiver is present. If a particular transceiver is present, then algorithms store the port address of the transceiver in memory and enable the transceiver to be read from or written to. Reading from the transceiver includes reading the identification information, and writing to the transceiver includes writing the identification information. If a transceiver is initially determined not to be present or if the reading/writing/enabling processes fail, then a recovery process determines if the transceiver was present the last time it was checked. If it was present the last time, then the process continues to try to recover the transceiver data—otherwise, the port is marked as empty.

Abstract: An exemplary metal detector includes a detecting circuit, a SCM, a converting circuit, and a cymometer. The SCM cooperates with the detecting circuit to generate a current signal with a specific frequency, the converting circuit transforms the current signal received from the SCM to a voltage signal, and the cymometer displays a value of a frequency of the current signal according to the voltage signal. When the detecting circuit detects a metal nearby, the value of the frequency of the current signal displayed on the cymometer changes.

Abstract: A luminous intensity measuring device includes a photoresistor, a number of voltage-dividing resistors, a plurality of comparators, a micro control unit (MCU), and an indicator. The photoresistor is connected to a current-limiting resistor in series between a direct current (DC) power supply and ground. The voltage-dividing resistors are connected in series, and together are connected parallel to the photoresistor and the current-limiting resistor located between the DC power supply and ground. A non-inverting node between the photoresistor and the current-limiting resistor is connected to the non-inverting input terminals of the comparators. The inverting terminals of the comparators are respectively connected to inverting nodes between every two adjacent voltage-dividing resistors. The output terminals of the comparators are connected to the input terminals of the MCU. The indicator is connected to the output terminals of the MCU. The MCU controls the indicator to indicate luminous intensity.

Abstract: A system and method automatically maintains data indicating a type of transmission medium connected at a port in a data switch device. The method comprises reading first transmission medium type data representing whether a first transmission medium type is connected to the port. A check is performed to determine whether a stored first transmission medium value is updated based at least in part on the first transmission medium type data, the first transmission medium value representing whether the first transmission medium type is actively connected. The method also involves reading second transmission medium type data representing whether a second transmission medium type is connected to the port. A check is performed to determine whether a stored second transmission medium value is updated based at least in part on the second transmission medium type data, the second transmission medium value representing whether the second transmission medium type is actively connected.

Abstract: An endurance testing system is configured to test endurance of a first detecting apparatus. The endurance testing system includes a second detecting apparatus, a movement module, a processor, and a storage module. The movement module includes a first inductive object and a second inductive object. The processor is connected to the first and second detecting apparatuses, and the movement module, for controlling the movement module and counting a first number of times the first detecting apparatus detects the first inductive object, and a second number of times the second detecting apparatus detects the second inductive object. The storage module is connected to the processor, for storing the first and second numbers of times from the processor. The first detecting apparatus fails the testing upon the condition that the first number of times is not equal to the second number of times.

Abstract: A metal detecting apparatus includes a sensor, a current signal outputting circuit, a transforming circuit, and a micro processing unit (MPU). The sensor is configured to sense metal objects in close proximity. The current signal outputting circuit is configured to generate alternative current signals. The alternative current signals are converted to digital voltage signals via the transforming circuit. The MPU is configured to obtain a specific frequency value of the alternative current signals according to the digital voltage signals. When the sensor senses a metal object in close proximity, the specific frequency value obtained by the MPU changes. The MPU is configured to determine if a metal object has been detected by determining if the obtained specific frequency value has changed.

Abstract: An exemplary metal detector includes a detecting circuit, a SCM, a converting circuit, and a cymometer. The SCM cooperates with the detecting circuit to generate a current signal with a specific frequency, the converting circuit transforms the current signal received from the SCM to a voltage signal, and the cymometer displays a value of a frequency of the current signal according to the voltage signal. When the detecting circuit detects a metal nearby, the value of the frequency of the current signal displayed on the cymometer changes.

Abstract: A luminous intensity measuring device includes a photoresistor, a number of voltage-dividing resistors, a plurality of comparators, a micro control unit (MCU), and an indicator. The photoresistor is connected to a current-limiting resistor in series between a direct current (DC) power supply and ground. The voltage-dividing resistors are connected in series, and together are connected parallel to the photoresistor and the current-limiting resistor located between the DC power supply and ground. A non-inverting node between the photoresistor and the current-limiting resistor is connected to the non-inverting input terminals of the comparators. The inverting terminals of the comparators are respectively connected to inverting nodes between every two adjacent voltage-dividing resistors. The output terminals of the comparators are connected to the input terminals of the MCU. The indicator is connected to the output terminals of the MCU. The MCU controls the indicator to indicate luminous intensity.