Abstract: A touch key control and icon display apparatus includes a first substrate, a light-emitting element, a second substrate, and a body portion. The light-emitting element is disposed adjacent to the first substrate. The second substrate includes a circuit layer configured to sense a touch. The body portion is disposed between the first and second substrates and includes a reflective surface that defines a chamber. The chamber is formed through the body portion and configured to receive the light-emitting element. The circuit layer includes an icon disposed adjacent to an opening of the chamber. A portion of light, from the light-emitting element, incident on the circuit layer can pass through the circuit layer, and another portion of the light can be reflected by the circuit layer.

Abstract: A transceiver includes a control module and a transceiving module. The control module is configured to generate a control signal in response to a signal from a micro-control unit. The transceiving module is integrated with the control module. The transceiving module is configured to, in response to the control signal, broadcast a first electrical signal to a bus and receive a second electrical signal from the bus.

Abstract: An electronic device comprises a control module, a transceiving module, a first isolator, and a second isolator. The control module is configured to generate a control signal in response to a signal from an MCU. The transceiving module comprises a transceiving unit, which further comprises a first switch and a second switch. The electronic device further comprises a first isolator and a second isolator. The first isolator is external to the transceiving unit and is coupled between the first switch and a bus. Moreover, the first isolator is configured to isolate a first spike current coming from the bus. The second isolator is external to the transceiving unit and is coupled between a terminal of the second switch and the bus. Moreover, the second isolator is configured to direct a second spike current coming from the bus to the ground.

Abstract: A signal conversion control circuit comprises an analog-to-digital converter, a first sample-and-hold circuit, a second sample-and-hold circuit, a first switch, a second switch, a third switch, and a fourth switch. The analog-to-digital converter has an input end for receiving an output signal of a touch screen. The first sample-and-hold circuit is configured to provide the analog-to-digital converter with a high-level reference voltage. The second sample-and-hold circuit is configured to provide the analog-to-digital converter with a low-level reference voltage. The first switch connects a supplied voltage to the touch screen. The second switch connects the touch screen to a ground potential. The third switch connects the supplied voltage to the first sample-and-hold circuit through the first switch. The fourth switch connects the ground potential to the second sample-and-hold circuit through the second switch.

Abstract: The method for automatically dispatching frames applied to a gateway comprises the steps of: using a first transceiver module to receive a plurality of frames from a network system; storing the frames in corresponding dispatch registers if at least a portion of the bits of the frames match one of a plurality of predetermined values; scheduling a dispatch order of the dispatch registers in accordance with a dispatch request; and dispatching frames stored in the dispatch registers to a second transceiver module in accordance with the dispatch order.

Abstract: An optical navigator sensor for sensing an image of an object comprises a substrate, a laser diode, an optical sensor device and a housing. The optical sensor device and the laser diode are fixed on the base plate and covered by the housing. The housing guides the light emitted from the laser diode to the object and guides the light reflected from the object to the optical sensor device.

Abstract: A signal conversion control circuit comprises an analog-to-digital converter, a first sample-and-hold circuit, a second sample-and-hold circuit, a first switch, a second switch, a third switch, and a fourth switch. The analog-to-digital converter has an input end for receiving an output signal of a touch screen. The first sample-and-hold circuit is configured to provide the analog-to-digital converter with a high-level reference voltage. The second sample-and-hold circuit is configured to provide the analog-to-digital converter with a low-level reference voltage. The first switch connects a supplied voltage to the touch screen. The second switch connects the touch screen to a ground potential. The third switch connects the supplied voltage to the first sample-and-hold circuit through the first switch. The fourth switch connects the ground potential to the second sample-and-hold circuit through the second switch.

Abstract: An on-screen display (OSD) circuit comprises a microprocessor, a serial peripheral interface (SPI) controller, an upload controller and an OSD controller. The SPI controller is connected to the microprocessor for receiving data of an external flash memory. The upload controller is configured to control data access between the SPI controller and the memory. The OSD controller is configured to control a display of an operating screen by the data stored in the memory. The upload controller stores a font table or an icon table and background screen data in the memory while the OSD controller is active.

Abstract: The method for automatically dispatching frames applied to a gateway comprises the steps of: using a first transceiver module to receive a plurality of frames from a network system; storing the frames in corresponding dispatch registers if at least a portion of the bits of the frames match one of a plurality of predetermined values; scheduling a dispatch order of the dispatch registers in accordance with a dispatch request; and dispatching frames stored in the dispatch registers to a second transceiver module in accordance with the dispatch order.

Abstract: An optical navigator sensor for sensing an image of an object comprises a substrate, a laser diode, an optical sensor device and a housing. The optical sensor device and the laser diode are fixed on the base plate and covered by the housing. The housing guides the light emitted from the laser diode to the object and guides the light reflected from the object to the optical sensor device.

Abstract: A method, an apparatus and a system for call forwarding through the Internet such that an incoming call transmitted by a caller can be forwarded to communication apparatuses connected to the Internet. The system comprises a first communication apparatus connected to an originating end of the caller, at least one second communication apparatus connected to the Internet, and a gateway apparatus. The gateway apparatus comprises a first port connected to the Internet, and a second port connected to the caller and the first communication apparatus. When the first communication apparatus receives an incoming call message, the gateway apparatus transmits the incoming call message to the second communication apparatus through the Internet, and then connects the call between the caller and the user of the second communication apparatus.

Abstract: The present invention discloses a method for prevention of distorted sub-picture display on a flat panel display. The display image of the flat panel display comprises a main picture and a sub-picture. While a drop line is performed on the main picture, image data output of the sub-picture is stopped. As the drop line is finished, image data output of the sub-picture is resumed. The method of stopping the output of image data of the sub-picture is adopted as a way to stop outputting a timing control signal used for controlling the image data output of the sub-picture, wherein the timing control signal is a horizontal synchronization signal or a clock signal. The timing control signal does not change logic state level while the drop line occurs. The image data of the sub-picture will not be discarded or masked while the drop line occurs. This prevents a distorted sub-picture on the flat panel display.

Abstract: A clock multiplier capable of modulating the duty cycle of the output clock comprises a first clock multiplication circuit, an inverter, a first low pass filter, a second low pass filter and an amplifier, the first multiplication clock being operative to multiply the frequency of an input clock, the inverter being operative to invert the input clock, the first low pass filter receiving the output clock of the inverter for being charged or discharged, the second low pass filter receiving the output clock of the first clock multiplication circuit for being charged or discharged, the amplifier being operative to compare the output voltages of the first low pass filter and the second low pass filter to perform a feedback control, so as to modulate the duty cycle of the output clock of the first multiplication clock to approach 50%.

Abstract: A clock multiplier capable of modulating the duty cycle of the output clock comprises a first clock multiplication circuit, an inverter, a first low pass filter, a second low pass filter and an amplifier, the first multiplication clock being operative to multiply the frequency of an input clock, the inverter being operative to invert the input clock, the first low pass filter receiving the output clock of the inverter for being charged or discharged, the second low pass filter receiving the output clock of the first clock multiplication circuit for being charged or discharged, the amplifier being operative to compare the output voltages of the first low pass filter and the second low pass filter to perform a feedback control, so as to modulate the duty cycle of the output clock of the first multiplication clock to approach 50%.

Abstract: A single-ended high-voltage level shifter for a TFT-LCD gate driver comprises a high-voltage power supply and a low-voltage power supply, a low-voltage NMOS transistor, a high-voltage NMOS transistor, and a high-voltage PMOS transistor. An input signal is applied at the gate of the low-voltage NMOS transistor. The source of the low-voltage NMOS transistor is connected to the low-voltage power supply. The source of the high-voltage NMOS transistor is connected to the drain of the low-voltage NMOS transistor. The high-voltage NMOS transistor has a first reference voltage applied at its gate. The level of the first reference voltage is between the input-signal level and the high-voltage power supply. The drain of the high-voltage PMOS transistor is connected to the drain of the high-voltage NMOS transistor. The source of the high-voltage PMOS transistor is connected to the high-voltage power supply. The high-voltage PMOS transistor has a second reference voltage applied at its gate.

Abstract: The embedded micro-controller unit includes a serial interface according to the present invention. A program control device connects the embedded micro-controller unit. The serial interface will send a request signal to a micro-processor while renewing program codes. The micro-processor will transfer the power of controlling program memory to the serial interface and then go into idle state or halt state after receiving the request signal. The program control device may directly write new program codes into the program memory through the serial interface.

Abstract: A method and apparatus is provided for interpolating a digital image in response to a requested degree of sharpness. An adjusting signal representing the requested degree of sharpness will then be generated. The interpolated pixel data are computed based on a 3 order or 4 order interpolation function for three sampling input pixels with an adjustable weight coefficient representing the selected degree of sharpness. The apparatus of the present invention mainly includes: a control interface, a control unit, a vertical interpolation computation module, and a horizontal interpolation module. The vertical interpolation computation module and the horizontal interpolation module are implemented according to an interpolation function derived by the present invention. The control unit comprises a lookup table built according to a scaling function of the present invention.