Nuvoton Technology Corporation

Hsinchu, Taiwan

Nuvoton Technology Corporation

Hsinchu, Taiwan
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Patent
Nuvoton Technology Corporation | Date: 2016-07-12

A switch-scanning circuit includes a chip and switching units. The chip includes pins having an output operation mode and an input operation mode, and a processing unit. The processing unit sets one of the pins as an input pin and the rest of the pins as output pins sequentially according to a clock signal, uses a scan signal to provide different voltages to the output pins, and then determines states of button switches according to a voltage of the input pin. The switching unit includes a power source resistance, switches and resistors. A first terminal and a second terminal of the power source resistance are electrically connected to a power source and a first pin respectively. The resistors have terminals electrically connected the first pin and terminals of the switches. The other terminals of the switches are connected to the pins other than the first pin.


Patent
Nuvoton Technology Corporation | Date: 2017-01-04

A reference voltage circuit is provided, which includes bandgap reference circuit, bias current generator, first capacitor, second capacitor, comparator and control logic circuit. In the active mode of the control logic circuit, the control logic circuit controls the bandgap reference circuit to deliver bandgap reference voltage. The comparator transmits first comparison signal to control logic circuit when the first and second capacitors are charged to the bandgap reference voltage. The control logic circuit enters low power mode and controls the bandgap reference circuit to stop delivering the bandgap reference voltage. If the comparator detects the potential difference between the first capacitor and second capacitor exceeds the threshold value, the control logic circuit returns to active mode according to the second comparison signal transmitted form the comparator.


Patent
Nuvoton Technology Corporation | Date: 2017-01-25

A non-volatile memory (NVM) device includes a logic memory circuit, a NVM element, a writing circuit and a reading circuit. The input terminal of the writing circuit and the output terminal of the reading circuit are coupled to the output terminal of the logic memory circuit. The first output terminal of the writing circuit and the first input terminal of the reading circuit are coupled to the first terminal of the NVM element. The second output terminal of the writing circuit and the second input terminal of the reading circuit are coupled to the second terminal of the NVM element. During a writing period, the writing circuit writes the stored data of the logic memory circuit into the NVM element. During a reading period, the reading circuit restores the data of the NVM element to the output terminal of the logic memory circuit.


Patent
Nuvoton Technology Corporation | Date: 2016-06-07

A debugging system includes an embedded device and a terminal computer. The embedded device includes a memory unit, and the memory unit includes a first buffer, the embedded device is configured for executing at least one instruction to generate at least one real-time debugging information, and writing the real-time debugging information into the first buffer. The terminal computer is connected to an in-circuit emulator (ICE) via a first interface, and the ICE is connected to the embedded device via a second interface. The terminal computer uses polling to read the real-time debugging information stored in the first buffer via the ICE, and deletes the real-time debugging information stored in the first buffer afterwards.


Patent
Nuvoton Technology Corporation | Date: 2016-05-17

An embodiment of a driving circuit is provided. The driving circuit is coupled to an I/O pad. The driving circuit includes an output driver, a first termination resistor, a second termination resistor and a monitoring circuit. The output driver outputs an output data via the I/O pad. The first termination resistor and the second termination resistor are coupled to a node between the output driver and the I/O pad. The monitoring circuit monitors a first current passing through the first termination resistor and adjusts resistance of the first termination resistor and the second termination resistor according to the first current.


Patent
Nuvoton Technology Corporation | Date: 2016-07-26

A home appliance control system is provided. The home appliance control system includes a portable device and a home appliance device. The portable device includes a first microphone, a first speaker, and a first processor. The first processor provides a first packet formed by a plurality of first audio signals through the first speaker according to an instruction. The home appliance device includes a second microphone, a second speaker, and a second processor. The second microphone receives the first packet from the first speaker of the portable device. The second processor obtains the instruction according to the first audio signals of the first packet received by the second microphone, and controls the home appliance device to perform an operational program according to the instruction.


Patent
Nuvoton Technology Corporation | Date: 2016-08-10

A charging method, a charging controller and a charging system are provided. The method includes the following steps: when a power receiving device is charged by a charging device through a transmission cable with a charging voltage, a current passing through a battery charging circuit is detected by a sensor. The charging information associated with the current is sent to a transmission module of the power receiving device through a monitoring program, and then the charging information is sent back to the charging device by the transmission module through the communication channel of the transmission cable. The transmission module of the charging device determines whether the charging information is satisfied with the stop condition. If so, the charging voltage is maintained to charge the power receiving device continuously. If not, the output charging voltage is gradually adjusted until the stop condition is satisfied.


A control method of over-temperature protection, a driver chip and a control system of over-temperature protection are disclosed. The control method includes the following steps: a driver chip provides an output voltage to drive a DC fan. A temperature of the driver chip is detected by an over-temperature detection module. When the temperature of the driver chip is higher than a first threshold value, the power supplying to the driver chip is stopped, so that the driver chip can cool down. After the temperature of the driver chip is lower than a second threshold value, the driver chip is restarted. A preset voltage is provided to the DC fan by the driver chip and the DC fan rotates at a preset rotational speed which is higher than the rotational speed.


Patent
Nuvoton Technology Corporation | Date: 2016-05-18

A computer status diagnosis chip and a computer status diagnosis system including the same are provided. The chip is connected with the computer chip set and the first audio generator, and includes a receiving unit, an audio encoder and a driving unit. The receiving unit receives a detection signal from the computer chip set, and the audio encoder is connected to the receiving unit and encodes the detection signal as a first audio signal. The driving unit drives the first audio generator according to the first audio signal. By acoustic wave, the first audio generator transmits the first audio signal to a first audio receiver. Upon receipt of the first audio signal, an application program installed in the smart device is used to decode the first audio signal to obtain the detection signal, and a computer status is displayed on the smart device.


Patent
Nuvoton Technology Corporation | Date: 2016-05-05

A master electronic device used to perform communication with a slave electronic device is provided. The master electronic device includes a power module, an input and output (I/O) module, a processing module, a sample and hold module and a control module. The power module outputs power having a default operation voltage. The I/O module operates according to the power having the default operation voltage. The processing module controls the I/O module to generate and transmit a command signal to the slave electronic device. The sample and hold module receives and samples a response signal from the slave electronic device. The control module determines a slave operation voltage according to a high state voltage level of the response signal, so as to further control the power module to generate power having the slave operation voltage such that the I/O module operates accordingly.

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