Abstract: A light-adjusting device having first regions and second regions is provided. The light-adjusting device includes pillars that form several groups of meta structures. The groups of meta structures correspond to the first regions, and from a top view, the first regions and the second regions are arranged in a checkerboard pattern.

Abstract: A micro-electro-mechanical system (MEMS) microphone is provided. The MEMS microphone includes a substrate, a diaphragm, a backplate and a first protrusion. The substrate has an opening portion. The diaphragm is disposed on one side of the substrate and extends across the opening portion of the substrate. The backplate includes a plurality of acoustic holes. The backplate is disposed on one side of the diaphragm. An air gap is formed between the backplate and the diaphragm. The first protrusion extends from the backplate towards the air gap.

Abstract: The embodiments described herein are directed to a method for reducing fin oxidation during the formation of fin isolation regions. The method includes providing a semiconductor substrate with an n-doped region and a p-doped region formed on a top portion of the semiconductor substrate; epitaxially growing a first layer on the p-doped region; epitaxially growing a second layer different from the first layer on the n-doped region; epitaxially growing a third layer on top surfaces of the first and second layers, where the third layer is thinner than the first and second layers. The method further includes etching the first, second, and third layers to form fin structures on the semiconductor substrate and forming an isolation region between the fin structures.

Abstract: The embodiments described herein are directed to a method for reducing fin oxidation during the formation of fin isolation regions. The method includes providing a semiconductor substrate with an n-doped region and a p-doped region formed on a top portion of the semiconductor substrate; epitaxially growing a first layer on the p-doped region; epitaxially growing a second layer different from the first layer on the n-doped region; epitaxially growing a third layer on top surfaces of the first and second layers, where the third layer is thinner than the first and second layers. The method further includes etching the first, second, and third layers to form fin structures on the semiconductor substrate and forming an isolation region between the fin structures.

Abstract: A reciprocating aquaponic device includes a housing, a bell-shaped siphon, and a water pump. The housing defines a water inlet space, and a tidal space and a planting space in fluid communication with the water inlet space. The housing includes a mounting wall over the tidal space, and an inclined wall under the tidal space. The inclined wall is inclined downward toward the planting space. The bell-shaped siphon is dispose on the mounting wall and is disposed for moving water from the water inlet space through the siphon opening and into the tidal space. The water pump is disposed in the fish tank for drawing water from the fish tank into the water inlet space.

Abstract: An over-voltage protection circuit includes an over-voltage detection circuit, a voltage generator and a switch for providing over-voltage protection between two pins of a USB Type-C port. The over-voltage detection circuit provides an over-voltage signal according to the level of the second pin. The switch includes a first end coupled to the first pin, a second end coupled to the second pin and a control end coupled to a control signal. When the over-voltage signal does not indicate an over-voltage occurrence at the second pin, the voltage generator provides the control signal having a first level for operating the switch in a first region. When the over-voltage signal indicates an over-voltage occurrence at the second pin, the voltage generator adjusts the control signal to a second level for cutting off the switch. The switch operates in a second region after the over-voltage occurrence and before the switch is cut off.

Abstract: An over-voltage protection circuit includes an over-voltage detection circuit, a voltage generator and a switch for providing over-voltage protection between two pins of a USB Type-C port. The over-voltage detection circuit provides an over-voltage signal according to the level of the second pin. The switch includes a first end coupled to the first pin, a second end coupled to the second pin and a control end coupled to a control signal. When the over-voltage signal does not indicate an over-voltage occurrence at the second pin, the voltage generator provides the control signal having a first level for operating the switch in a first region. When the over-voltage signal indicates an over-voltage occurrence at the second pin, the voltage generator adjusts the control signal to a second level for cutting off the switch. The switch operates in a second region after the over-voltage occurrence and before the switch is cut off.

Abstract: A system for producing biomass vinegar and charcoal includes a furnace, which has an outer shell defining a lower combustion chamber and an upper heating chamber, and an inner tank removably received in the heating chamber. A cooling pond has a cooling region to accommodate the inner tank. A condenser in a collection barrel condenses smoke gases from the inner tank to produce biomass vinegar. A first temperature sensing pipeline removably connects the inner tank, After the biomass is carbonized, the first temperature sensing pipeline is removed from the inner tank, and the inner tank is moved to the cooling region to be cooled by a sprinkler.

Abstract: A system for producing biomass vinegar and charcoal includes a furnace, which has an outer shell defining a lower combustion chamber and an upper heating chamber, and an inner tank removably received in the heating chamber. A cooling pond has a cooling region to accommodate the inner tank. A condenser in a collection barrel condenses smoke gases from the inner tank to produce biomass vinegar. A first temperature sensing pipeline removably connects the inner tank, After the biomass is carbonized, the first temperature sensing pipeline is removed from the inner tank, and the inner tank is moved to the cooling region to be cooled by a sprinkler.

Abstract: A water purification tumbler includes a main body and a filtration unit. The filtration unit includes an annular wall, a flow conducting member, a high-temperature bamboo charcoal layer, and a low-temperature bamboo charcoal layer. The flow conducting member is disposed inside of the annular wall and defines a flow channel communicating with an opening of the main body. The flow channel has a water inlet section and a water outlet section. The water inlet section gradually narrows downward. The high-temperature bamboo charcoal layer and low-temperature bamboo charcoal layer are connected to the flow conducting member and are disposed respectively above and under the flow channel.

Abstract: A voltage generation device and a voltage generation method are provided. The voltage generation device includes a first voltage generator, a second voltage generator, a third voltage generator and an output voltage generator. The first to third voltage generators respectively generate first to third voltages. The output voltage generator generates an output voltage at an output end according to the first voltage, the second voltage and the third voltage. When the output voltage is converted between the first voltage and the second voltage, during a first time period, the first voltage generator provides the first voltage to a first capacitor, and the third voltage generator causes the output voltage to change from the second voltage to the third voltage. During a second time period, the first voltage generator and the first capacitor cause the output voltage to change from the third voltage to the first voltage.

Abstract: A touch pad driving device and a touch driving method are provided. The touch pad driving device is configured to scan a plurality of sensing channels of a touch pad, cause the selected sensing channel in the plurality of sensing channels receive a touch driving signal, cause the sensing channels adjacent to or around the selected sensing channel receive a shielding signal, and cause the remaining sensing channels receive a reference signal, so as to reduce electromagnetic interference generated by the touch pad.

Abstract: A touch pad driving device and a touch driving method are provided. The touch pad driving device is configured to scan a plurality of sensing channels of a touch pad, cause the selected sensing channel in the plurality of sensing channels receive a touch driving signal, cause the sensing channels adjacent to or around the selected sensing channel receive a shielding signal, and cause the remaining sensing channels receive a reference signal, so as to reduce electromagnetic interference generated by the touch pad.

Abstract: A gate driving circuit for providing a high driving voltage includes a first N-type high-voltage transistor and a second N-type high-voltage transistor connected in series between a driving voltage output node and a system low-voltage source. A voltage difference between a system high-voltage source and the system low-voltage source is greater than a withstand voltage of the first or second N-type high-voltage transistor. When the driving voltage output node is to output a system high voltage, the first N-type high-voltage transistor and the second N-type high-voltage transistor are turned off. Deep N-type well regions of the first N-type high-voltage transistor and the second N-type high-voltage transistor are applied with a first bias voltage. A voltage difference between the first bias voltage and the system low-voltage source is smaller than an interface breakdown voltage between the deep N-type well region and a P-type well region of the second N-type high-voltage transistor.

Abstract: In a method for generating an electronic signature, a web server provides a webpage to be displayed on a touch screen of an electronic device, receives a representative signal of a handwritten signature inputted by a signer and a dynamic image that presents a motion of the signer during signing the handwritten signature captured by the dynamic image capturing module simultaneously with the inputting of the handwritten signature. Afterward, the web server stores the dynamic image as a streaming file, compiles a data file that includes the representative signal and the streaming file, and executes the data file in the webpage as an electronic signature.

Abstract: In a method for generating an electronic signature, a web server provides a webpage to be displayed on a touch screen of an electronic device, receives a representative signal of a handwritten signature inputted by a signer and a dynamic image that presents a motion of the signer during signing the handwritten signature captured by the dynamic image capturing module simultaneously with the inputting of the handwritten signature. Afterward, the web server stores the dynamic image as a streaming file, compiles a data file that includes the representative signal and the streaming file, and executes the data file in the webpage as an electronic signature.

Abstract: An electrophoretic display module includes an electrophoretic display panel, a driving circuit, and a power converter. The electrophoretic display panel includes a plurality of display units. Each of the display units is configured to display images according to a display voltage. The driving circuit is electrically connected to the plurality of display units for outputting the display voltage to the corresponding display unit according to a first driving voltage and a second driving voltage, and changing the display voltage according to a display signal. The power converter is configured to output the first driving voltage and the second driving voltage to the driving circuit according to a power source during a frame refreshing period, wherein the power converter is turned off after a predetermined length of time following the driving circuit changing the display voltage.

Abstract: A battery charger with an overvoltage protection circuitry is electrically coupled to a power source and a battery. The battery charger with the overvoltage protection circuitry includes a switching circuit. The switching circuit comprises a first switching element, a second switching element, a Zener diode, and a resistor. The first switching element includes a first terminal coupled to the power source, a control terminal, and a second terminal coupled to the battery. The second switching element includes a first terminal coupled to the control terminal of the first switching element, a control terminal, and a second terminal coupled to the first terminal of the first switching element. The Zener diode includes a cathode coupled to the control terminal of the second switching element and an anode grounded. The resistor includes a first terminal coupled to the control terminal of the first switching element and a second terminal grounded.

Abstract: A controlling circuit and a controlling method are disclosed. The controlling circuit includes a plurality of switches and a comparator. The first terminals of the switches are respectively coupled to one of a plurality of LED channels. The switches are conducted according to a plurality of switching signals respectively, wherein the switching signals are asserted alternately. The first input terminal of the comparator is coupled to the second terminals of the switches and the second input terminal of the comparator receives a reference voltage for the comparator to compare the voltage of the first input terminal with the voltage of the second input terminal so as to output a comparison result. In this way, whether the LED channels work abnormally or not may be detected. In addition, the hardware cost may also be reduced by employing fewer comparators through a sharing mode.

Abstract: A communication apparatus includes a communication unit, an operation unit, and a recording unit. The communication unit is for communicating with other communication apparatuses. The operation unit is for generating an operation signal corresponding to a user's operation. The recording unit is for recording immediate environmental sound and generating an audio file. The audio file is sent to the other communication apparatuses when the communication unit receives an incoming call from the other communication apparatuses and the operation unit does not receive a user's operation responding to the incoming call. A communication method is also provided.