Abstract: A buzzer circuit includes a control unit, a constant current unit, and a buzzer. The buzzer circuit is coupled to a drive circuit. The buzzer includes a power pin and a ground pin. The constant current unit includes a constant voltage component and a first resistor. When the power pin of the buzzer receives a high level drive signal, the constant voltage component provides a constant voltage, controlled by the control unit, to the first resistor, and the ground pin is coupled to ground through the first resistor, and the buzzer buzzes steadily.

Abstract: A buzzer circuit includes an amplifier U, a first electronic switch and a second electronic switch, a first resistor and a second resistor, and a buzzer. The buzzer circuit is coupled to a drive circuit for receiving a drive signal. The first electronic is turned on and when the power pin of the buzzer receives a high level drive signal, the second electronic switch is turned on, and the buzzer buzzes steadily.

Abstract: A controlling circuit for a fan includes three comparators, a capacitor, and a thermistor. When the temperature around the thermistor changes, the resistance of the thermistor changes. The comparators control the charging and discharging time of the capacitor, thereby generating a corresponding pulse width modulation signal to the fan according to the temperature, to adjust the speed of the fan.

Abstract: A method for automatically diagnosing inherited retinal disease includes receiving a plurality of dissimilar types of data and pre-processing at least one of the plurality of dissimilar types of data to generate a feature vector descriptive of a patient. Further, the method includes, for each of the plurality of dissimilar types of data: (i) comparing portions of the respective type of data or a corresponding feature vector to data in a mutation proven database; (ii) generating a ranked list of matches between the patient and the plurality of patients with known diagnoses; and (iii) storing the ranked list of matches in an output database. A diagnosis routine then aggregates a plurality of ranked lists of matches in the output database to generate a ranked list of genetic diagnoses corresponding to the patient and sends an indication of the ranked list of genetic diagnoses to the end user device.

Abstract: An indicator light control circuit includes a basic input output system (BIOS) integrated circuit (IC), a microcontroller, a signal control unit, an electronic switch, and an indicator light. The microcontroller includes a general purpose input output (GPIO) pin. When different operating options of the indicator light are set into and by the BIOS IC, the BIOS IC controls the GPIO pin of the microcontroller to output command signals, such as a low voltage signal, a high voltage signal and pulse signals, then the signal control unit generates and outputs signals according to the command signals. Thus, the electronic switch is operated to turn on or turn off or to pulse when controlling the operation of the indicator light(s).

Abstract: An all-in-one (AIO) computer with a fixed and simple connection includes a panel, a motherboard, and a connector. The connector includes a male connector and a female connector. The male connector is mounted on the motherboard and the female connector is mounted on the panel. The panel communicates with the motherboard through the connector.

Abstract: An alternating current (AC) power cable includes discharge electrodes, a relay, and an electromagnetic coil with two windings. The relay includes an induction coil with two ends. The two ends of the induction coil are respectively connected to two ends of the electromagnetic coil. The discharge electrodes include a first discharge electrode and a second discharge electrode. The first discharge electrode is connected to the neutral wire of the AC power cable. The second discharge electrode is connected to the relay. When the AC power cable has residual charge, current is induced by the electromagnetic in the induction coil. The induction coil converts the current to magnetic force to close the relay. The residual charge is transmitted to the discharge electrodes through the relay.

Abstract: An interface detection circuit is used for detecting whether an interface of an electronic device is in good contact with an interface of a connection device. The interface detection circuit includes a pressure sensing module, a signal processing module, and a warning module. The pressure sensing module detects whether the pins of the interface of the electronic device is suffered pressure and transmits the detecting results to the signal processing module. The signal processing module magnifies and calculates the detecting results. The signal processing module outputs a control signal to the warning module. The warning module alerts the user whether the two interfaces make good contact with each other.

Abstract: A linear voltage stabilizing circuit includes a main stabilizing unit, a first resistor, a second resistor, and a sub-stabilizing unit. The main stabilizing unit includes a first transistor connected between a signal input terminal and a signal output terminal, and a first comparator controlling the first transistor. The first and the second resistor are connected between the signal input terminal and ground. The voltage between the first resistor and the second resistor is equal to a first reference voltage. The sub-stabilizing unit includes a third resistor, a fourth resistor, a second transistor connected between the signal input terminal and the first transistor, and a second comparator. The third and fourth resistor are connected between the second comparator and ground. The node of the third and fourth resistor is connected to the node between the first and the second resistor. The second comparator controls the second transistor turn on or off.

Abstract: An all in one (AIO) computer implemented as a personal computer (PC) or a display includes a high definition multimedia interface, a speaker, and a speaker control circuit. The speaker control circuit includes an earphone interface circuit, a main controller, a signal processing unit, and a signal control circuit. The earphone interface circuit detects whether an earphone is inserted into the AIO computer. When the earphone interface circuit detects the earphone is connected to the AIO computer, if the AIO computer is implemented as the PC, the main controller sends a first muting signal. If the AIO computer is implemented as the display, the main controller sends a second muting signal, and the signal control circuit controls and mutes the speaker according to the first muting signal and the second muting signal.

Abstract: An indicating circuit for indicating the rotation speed of a fan includes a rotation speed indicating module connected to the fan and receiving rotation speed signals from the fan. The indicating circuit includes a switch and a light emitting element. If the received signal is a high level signal, the switch is turned on, and the light emitting element emits light. If the reeived signal is a low level signal, the switch is turned off, and the light emitting element does not emit light.

Abstract: A power on circuit is connected between a video graphics array (VGA) connector of a display and a super input output (SIO) chip of a motherboard. The power on circuit includes first to fourth electronic switches and a timer. When a power button of the display is pressed, a serial data line pin of the VGA connector outputs a high level signal to turn on the first electronic switch, the second electronic switch is turned on, the fourth electronic switch is turned on, and the timer outputs a periodic pulse signal. When the pulse signal outputted from the timer is at a high level, the third electronic switch is turned on, the SIO chip receives a low level signal from the fourth and third electronic switches, and the motherboard is turned on.

Abstract: A voltage measuring circuit includes a voltage measuring port, a voltage reference unit, a first voltage comparing unit and a light emitting diode. The voltage measuring port is for receiving an external voltage to be measured. The voltage reference unit includes a port providing a reference voltage. The first voltage comparing unit includes a reference port connected to the voltage reference unit, a measuring port connected to the voltage measuring port, and an output port for outputting a high/low level voltage when the external voltage is lower/higher than the reference voltage. The light emitting diode includes a cathode connected to the output port of the first voltage comparing unit and an anode connected to an external voltage port.

Abstract: A protection circuit includes a coding chip, a digital-to-analog converter (DAC), and a control circuit. The coding chip receives parallel voltage identification definition (PVID) signals or serial voltage identification definition (SVID) signals from a central processing unit (CPU), and converts the PVID signals or the SVID signals to voltage identification definition (VID) signals. The DAC receives the VID signals from the coding chip, and converts the VID signals to an analog voltage. The control circuit receives the analog voltage from the DAC and a voltage received by the CPU, and compares the analog voltage from the DAC with the voltage received by the CPU. When the voltage received by the CPU is greater than the analog voltage from the DAC, the control circuit disconnects the CPU from a first power supply.

Abstract: A key button mechanism includes a retaining board, a sliding board, a key button and a stopping member. The sliding board is slidably mounted to the retaining board. The sliding board is capable of sliding between a first configuration and a second configuration. The key button is fixed to the sliding board so the key button can be slid relative to the retaining board. The stopping member is located between the retaining board and the sliding board. The stopping member, which can be overcome with fingernail pressure, holds the sliding board in either the first configuration or the second configuration.

Abstract: A voltage stabilizing circuit including an input port, an output port, a transistor, a diode, a three-terminal voltage regulating reference source, a first resistor, and a second resistor. The transistor has a collector terminal and an emitter terminal connected to the input port and the output port, respectively. The diode has an anode connected to the input port and a base terminal of the transistor. The three-terminal voltage regulating reference source has an anode connected to ground, a cathode connected to the input port and a cathode of the diode, and a reference terminal The first resistor is connected between the cathode of the diode and the reference terminal of the three-terminal voltage regulating reference source. The second resistor is connected between ground and the reference terminal of the three-terminal voltage regulating reference source.

Abstract: A controlling circuit for a fan includes three comparators, a capacitor, and a thermistor. When the temperature around the thermistor changes, the resistance of the thermistor changes. The comparators control the charging and discharging time of the capacitor, thereby generating a corresponding pulse width modulation signal to the fan according to the temperature, to adjust the speed of the fan.

Abstract: A voltage detection circuit used to detect a voltage source includes a Zener diode, a thyristor, a first resistor, a second resistor, a first light-emitting diode (LED), and a second LED. A cathode of the Zener diode is connected to the voltage source. An anode of the Zener diode is connected to a control terminal of the thyristor through a first resistor. An anode of the thyristor is connected to the voltage source through a second resistor. The anode of the thyristor is connected to an anode of the first LED. A cathode of the thyristor is connected to a cathode of the first LED. The cathode of the thyristor is connected to an anode of the second LED, and a cathode of the second LED is grounded.

Abstract: A system for adjusting the light uniformity of a monitor. The system comprises a camera for capturing a test pattern image on a display of the monitor and a controller configured to select the test pattern image and to cause the monitor to display the selected test pattern image. The controller receives the captured image from the camera and compares pixel values from the captured image to known pixel values associated with the selected test pattern image. The selected test pattern image has an ideal uniform light distribution and the captured image has a non-uniform light distribution. In response to the comparison, the controller calculates a compensation light distribution that may be combined with the non-uniform light distribution to generate a resulting image on the display of the monitor having a resulting light distribution that approximates the ideal uniform light distribution.

Abstract: A socket connector packaging includes a main body and a cover. The main body includes a first sidewall and a pivot positioned on the first sidewall. The cover includes a second sidewall, a coupling portion and a stop portion. The coupling portion and the stop portion are positioned on the second sidewall and opposite to each other. The pivot is placed over the coupling portion, thereby making the cover to be rotatable relative to the main body through the pivot. The stop portion is configured for preventing the cover from further rotating when the pivot contacts with the stop portion.