Abstract: A programmable amplifier circuit includes an amplifier, an input capacitor coupled to an input of the amplifier, a feedback capacitor coupled to the input of the amplifier and an output of the amplifier, and a switched-capacitor resistor circuit. The switched-capacitor resistor circuit is coupled between the input of the amplifier and the output of the amplifier, and configured for simulating a feedback resistor element to provide a resistance for a feedback path of the amplifier by using at least one capacitor placed between the input of the amplifier and the output of the amplifier to avoid leakage current(s) flowing back to an input of the amplifier.

Abstract: A voltage regulation circuit for LED tube coupled to an energy input terminal being an AC source, a CCG or a ECG, comprising: a controlling part, including: a first impedance unit coupled to the energy input terminal; a second impedance unit coupled to the first impedance unit; and a third impedance unit coupled to the second impedance unit; and a controlled part including at least an LED unit and coupled to the controlling part; wherein a first terminal of the first impedance unit is coupled to a first terminal of the second impedance unit, a second terminal of the second impedance unit is coupled to a first terminal of the third impedance unit through a node, and the node is coupled to the controlled part.

Abstract: A device for removing crosstalk includes a jack to form an electrical connection with a plug, and an audio unit to provide a left audio channel and a right audio channel to the plug. The audio unit includes a crosstalk cancellation circuit. The crosstalk cancellation circuit estimates the crosstalk between the left audio channel and the right audio channel to obtain an estimated right-to-left crosstalk and an estimated left-to-right crosstalk, and to remove the crosstalk by subtracting the estimated right-to-left crosstalk and the estimated left-to-right crosstalk from digital signals in the left audio channel and the right audio channel, respectively.

Abstract: A system for accessing data among at least two different electronic devices is provided. The system includes a demanding electronic device and a providing electronic device. The demanding electronic device is utilized to establish an input virtual device to execute an application on the demanding electronic device. The providing electronic device is utilized to establish an output virtual device for transmitting data from the providing electronic device to the demanding electronic device via the output virtual device, wherein the data corresponds to the application, and the providing electronic device is physically separated from the demanding electronic device. The input virtual device is established to use a first peripheral of the providing electronic device as a built-in peripheral of the demanding electronic device.

Abstract: A device for removing crosstalk includes a jack to form an electrical connection with a plug, and an audio unit to provide a left audio channel and a right audio channel to the plug. The audio unit includes a crosstalk cancellation circuit. The crosstalk cancellation circuit estimates the crosstalk between the left audio channel and the right audio channel to obtain an estimated right-to-left crosstalk and an estimated left-to-right crosstalk, and to remove the crosstalk by subtracting the estimated right-to-left crosstalk and the estimated left-to-right crosstalk from digital signals in the left audio channel and the right audio channel, respectively.

Abstract: A technique, as well as select implementations thereof, pertaining to cross-mounting a device is described. The technique may involve an apparatus detecting a presence of a device not a part of the apparatus. The technique may also involve the apparatus performing an update in response to the detecting of the presence of the device. The technique may additionally involve the apparatus establishing a communication connection with the device. The technique may further involve the apparatus utilizing the device to perform one or more tasks.

Abstract: A pivot assembly adapted to an electronic device is provided. The electronic device includes a first device body including a first pivot side edge and a second device body including a second pivot side edge. The pivot assembly comprises a first pivot pivotally disposed inside the first device body, a second pivot pivotally disposed at the second device body, a first connecting member pivotally connected to the first pivot and the second pivot, a third pivot pivotally disposed at the second device body, a fourth pivot pivotally disposed inside the first device body, and a second connecting member pivotally connected to the third pivot and the fourth pivot. The third pivot is closer to the second pivot side edge relative to the second pivot. The fourth pivot is closer to the first pivot side edge relative to the first pivot.

Abstract: A device includes an audio unit to provide a left audio channel, a right audio channel and a microphone channel to a headset plug. The device also includes a headset jack to form an electrical connection with the headset plug, and a swap switch configurable to swap connections of a ground terminal and a microphone terminal of the headset plug to the audio unit. The audio unit further includes: a first crosstalk cancellation circuit to subtract an estimated right-to-left crosstalk from a left digital path of the left audio channel, and to subtract an estimated left-to-right crosstalk from a right digital path of the right audio channel; and a second crosstalk cancellation circuit to subtract an estimated left-to-microphone crosstalk and an estimated right-to-microphone crosstalk from a microphone digital path of the microphone channel.

Abstract: An optical object positioning apparatus including an optical element, a light sensor and a processing unit and a positioning method thereof are provided. The optical element includes a first surface and a second surface opposite to each other and perpendicular to a first axis, and has at least two light-passing regions. Light beams from an object to be positioned pass through the light-passing regions from the first surface to the second surface. The light sensor and the optical element are spaced by a predetermined distance on a direction of the first axis. The light sensor senses the light beams from the light-passing regions to generate at least two light-sensing signals. A distance between the object and the optical element is positively correlated to the predetermined distance. The processing unit receives the light-sensing signals and positions the object according to the light-sensing signals and the predetermined distance.

Abstract: An LED device with energy compensation includes a first LED driving circuit, a second LED driving circuit, and a capacitor. The first LED driving circuit includes a first LED driver and a plurality of first LED groups controlled by the first LED driver. The second LED driving circuit including a second LED driver and a plurality of second LED groups controlled by the second LED driver. The second LED driving circuit is connected in parallel with the first LED driving circuit. The capacitor has a first terminal coupled to the second LED driving circuit and a second terminal coupled to one of the first LED driving circuit and the second LED driver. A power source is coupled to the first LED driving circuit, the second LED driving circuit, and the first terminal of the capacitor for applying an AC power to the first terminal of the capacitor.

Abstract: A display apparatus is provided. The display apparatus includes a detector and a controller. The detector is arranged for detecting motion of the display apparatus to identify an activity of a user of the display apparatus, and accordingly generating an identification result. The controller is coupled to the detector, and is arranged for determining a display resolution of the display apparatus according to the identification result.

Abstract: A walking aid device includes a support body inclusive of a plurality of support elements extending toward the ground. Each support element is coupled to a caster and a brake unit. Each brake unit has a clutching surface. The clutching surface controllably clutches a wheel of the caster or the ground to thereby generate friction for stopping the walking aid device.

Abstract: A programmable amplifier circuit includes an amplifier, an input capacitor coupled to an input of the amplifier, a feedback capacitor coupled to the input of the amplifier and an output of the amplifier, and a switched-capacitor resistor circuit. The switched-capacitor resistor circuit is coupled between the input of the amplifier and the output of the amplifier, and configured for simulating a feedback resistor element to provide a resistance for a feedback path of the amplifier by using at least one capacitor placed between the input of the amplifier and the output of the amplifier to avoid leakage current(s) flowing back to an input of the amplifier.

Abstract: A high-safety LED tube, comprising: a first side having a first electrode and a second electrode; a second side having a third electrode and a fourth electrode; a first impedance module coupled to the first side; a second impedance module coupled to the second side; a first energy sensor having a first terminal coupled to the first impedance module; a second energy sensor having a first terminal coupled to the second impedance module; an LED unit coupled to the first impedance module and the second impedance module; a switch coupled to the LED unit; and a state control module coupled to the switch; wherein, when the first energy sensor or the second energy sensor detects an energy flowing between the first electrode and the second electrode or between the third electrode and the fourth electrode, the state control module turns on the switch.

Abstract: A device of detecting a door/window status includes a signal generating unit and a signal sensing module. The signal generating unit is disposed beside a door/window to generate a position signal. The signal sensing module is disposed opposite the signal generating unit and includes a three-axis accelerometer, a three-axis magnetic force gauge and a microcontroller. The microcontroller reads the position signal generated from the signal generating unit and detection signals generated from the three-axis accelerometer and the three-axis magnetic force gauge while the door/window is operating to thereby determine the position and status of the door/window, thereby enhancing home safety. A method of detecting the door/window status with the device is further introduced.

Abstract: A filament simulation circuit for LED tube, comprising: two filament simulation parts respectively disposed on two terminals of a tube to receive a current from an electronic ballast, each filament simulation part including two sub-filament simulation parts, each sub-filament simulation part including a first resistor, a capacitor and a inductor, wherein each sub-filament simulation part is divided into: a first part; and a second part connected in series to the first part, the second part having a parallel connection structure; wherein an impedance of the sub-filament simulation part in a pre-heated stage is greater than that in an operating stage.

Abstract: A device includes an audio unit to provide a left audio channel, a right audio channel and a microphone channel to a headset plug. The device also includes a headset jack to form an electrical connection with the headset plug, and a swap switch configurable to swap connections of a ground terminal and a microphone terminal of the headset plug to the audio unit. The audio unit further includes: a first crosstalk cancellation circuit to subtract an estimated right-to-left crosstalk from a left digital path of the left audio channel, and to subtract an estimated left-to-right crosstalk from a right digital path of the right audio channel; and a second crosstalk cancellation circuit to subtract an estimated left-to-microphone crosstalk and an estimated right-to-microphone crosstalk from a microphone digital path of the microphone channel.

Abstract: An LED control circuit, comprising: a current source including a positive terminal and a negative terminal for providing a current; an LED, which is disposed on a first current path, including an anode and a cathode where the anode is connected to the positive terminal of the current source; an LED monitor including an input terminal and an output terminal where the input terminal is connected to the anode or the cathode of the LED; and a second current path connected in parallel to the first current path; wherein, when the LED monitor detects that the first current meets a target value, if the source current provided by the power source is greater than the target value, a second current divided from the source current flows through the second current path.

Abstract: A walking aid device includes a support body inclusive of a plurality of support elements extending toward the ground. Each support element is coupled to a caster and a brake unit. Each brake unit has a clutching surface. The clutching surface controllably clutches a wheel of the caster or the ground to thereby generate friction for stopping the walking aid device.

Abstract: The present invention provides a single electrode layer of a touch panel, which comprises a plurality of electrodes. The electrodes comprise a plurality of holes arranged in a plurality of rows in a first direction and adjacent to one another. The holes are also arranged in a plurality of columns in a second direction and adjacent to one another. The columns of the holes are arranged in a zigzag pattern along the first direction. The rows of the holes are arranged in a zigzag pattern along the second direction. The electrodes are arranged in a zigzag pattern along the first direction corresponding to the holes and forming a first side and a second side opposing to the first side, which are zigzag shape. The first and second sides form a plurality of convex parts and a plurality of concave parts. The geometric shapes of the convex parts and the concave parts extend the zigzag shapes of the holes along the second direction.