Abstract: A dynamically controlled active stylus and dynamical stylus control method are provided. The dynamical stylus control method for dynamically controlling active stylus operates through the dynamical controlled active stylus. The dynamical controlled active stylus includes a tip electrode, a shielding electrode, a ring electrode, and a dynamic module. The control method for dynamically controlling stylus includes: controlling the active stylus to be in a receiving state within a frame of operation of the active stylus, such that the shielding electrode is at a floating potential, and controlling the active stylus to be in a transmitting state within the frame of operation of the active stylus such that the shielding electrode is at a ground potential.

Abstract: A touch device and a touch device control method are provided. The touch device includes: a touch screen has a button body placement portion and a touch control portion located outside the button body placement portion; a capacitive button disposed on the touch screen and in the button body placement portion; a sensing device configured to sense first data at the button body placement portion and second data at the touch control portion; a computing unit configured to calculate a parameter adjustment amount for balancing a signal-to-noise ratio between the button body placement portion and the touch control portion based on the first data and the second data; and a balancing unit configured to regulate the touch screen according to the parameter adjustment amount.

Abstract: A method for optimizing a manufacturing setting process of a dual-screen device includes defining a correspondence between a touch gesture and a confirmation signal in a dual-screen device; detecting the touch gesture during a calibration process for a first display of the dual-screen device; determining whether at least one operation gesture on the dual-screen device is the same as the defined touch gesture, and outputting the confirmation signal when the at least one operation gesture on the dual-screen device is the same as the defined touch gesture; and in response to the confirmation signal, continuing to calibrate a second display of the dual-screen device. When screen calibration is performed on a large number of dual-screen devices, there is no need to frequently plug and unplug a keyboard, thereby avoiding cumbersome manufacturing processes and improving production efficiency.

Abstract: A touchpad and keyboard integrated device is provided and includes: a carrier board; a keyboard circuit disposed above the carrier board and including a plurality of button areas; a plurality of buttons, one of the buttons being correspondingly disposed in one of the button areas; and a flexible film touch panel covering the plurality of buttons and including a touch area. When a touch position occurs in the touch area, the flexible film touch panel generates a touch signal, and when the flexible film touch panel is pressed, one of the buttons below a pressed position causes an output signal to be generated in a corresponding button area.

Abstract: A button structure of projected capacitive touch panel disposed on a touch screen, wherein the button structure of projected capacitive touch panel includes: a button body disposed on the touch screen; a capacitive touch sheet disposed on the touch screen and positioned inside the button body; a conductive rubber disposed inside the button body, wherein the conductive rubber includes a contact portion which can contact the capacitive touch sheet; a button cap including a connecting body and a cover body, wherein the connecting body is disposed on the conductive rubber, and wherein the cover body protrudes out of the button body. The contact portion contacts the capacitive touch sheet when the button cap is pressed down, which causes the touch screen to generate an input signal by conducting the conductive rubber with the capacitive touch sheet.

Abstract: A dynamically controlled active stylus and dynamical stylus control method are provided. The dynamical stylus control method for dynamically controlling active stylus operates through the dynamical controlled active stylus. The dynamical controlled active stylus includes a tip electrode, a shielding electrode, a ring electrode, and a dynamic module. The control method for dynamically controlling stylus includes: controlling the active stylus to be in a receiving state within a frame of operation of the active stylus, such that the shielding electrode is at a floating potential, and controlling the active stylus to be in a transmitting state within the frame of operation of the active stylus such that the shielding electrode is at a ground potential.

Abstract: An amplifier circuit includes a programmable-gain amplifier, a first resistor, a second resistor and at least one third resistor. The programmable-gain amplifier has a first positive input terminal, a first negative input terminal, a second positive input terminal, a second negative input terminal, a positive output terminal and a negative output terminal. The first resistor is connected between the first negative input terminal and the positive output terminal. One terminal of the second resistor is connected to the first negative input terminal and the first resistor, and another terminal is connected to the second positive input terminal. The at least one third resistor is connected between the second positive input terminal and the negative output terminal. A sum of resistances of each of the first resistor and the second resistor is the same as a resistance of the at least one third resistor.

Abstract: A haptic feedback method for an electronic system includes pairing an electronic device with a first wireless communication module and an input device with a second wireless communication module and a haptic feedback motor unit, inputting a control signal to the electronic device through the input device, and sending a wireless motor driving signal to the second wireless communication module of the input device by the first wireless communication module of the electronic device according to the control signal, so that the second wireless communication module generates a wired motor driving signal according to the wireless motor driving signal and directly transmits the wired motor driving signal to the haptic feedback motor unit to directly enable vibration of the haptic feedback motor unit.

Abstract: An electronic wake-up device and a wake-up method thereof are provided. The electronic wake-up device includes: a power switch device, an electronic device, a gravity sensor, and a wake-up circuit. The wake-up circuit is coupled to the gravity sensor and the electronic device. The wake-up circuit is configured to generate an execution signal according to a sensing activation signal, and generate an electronic device control signal according to the execution signal and a gravity signal to wake up the electronic device.

Abstract: A constant current charging device is configured to charge a device to be charged and includes: a reference current source configured to provide a reference current; a current mirror electrically coupled to the reference current source and configured to output a mirror current; a current adjustment control unit electrically coupled to the current mirror and the device to be charged wherein the current adjustment control unit is configured to output a charging current according to the mirror current to charge the device to be charged; and a current compensation unit electrically coupled to the current mirror and the current adjustment control unit. The current adjustment control unit includes a voltage follower unit, and the current adjustment control unit tracks a charging voltage through the voltage follower unit to stabilize the charging current.

Abstract: A constant current charging device is configured to charge a device to be charged and includes: a reference current source; a current mirror electrically coupled to the reference current source and configured to output a mirror current; a current adjustment control unit electrically coupled to the current mirror and the device to be charged; and a current compensation unit electrically coupled to the current mirror and the current adjustment control unit. The current adjustment control unit includes a control transistor and a control contact connected to an output terminal of the current compensation unit and the control transistor, wherein the current adjustment control unit controls the control transistor according to a charging voltage to reduce current flows through the control contact.

Abstract: A writing identification system includes a touch control panel, an identification device, and a pairing device. The identification device includes a housing assembly detachably attached to a writing instrument. A trigger sensor is disposed in a first cover of the housing assembly for sensing displacement of the writing instrument. A wireless transmission module is disposed in the first cover. When the trigger sensor senses the displacement and a writing head of the writing instrument contacts a writing board, the wireless transmission module transmits a first identification signal. A power module is disposed in the housing assembly. The pairing device is configured to receive the first identification signal and a handwriting touch signal to generate a first pairing signal and transmit the first pairing signal to a user device.

Abstract: An interactive control system includes: an active pen; and an electronic device configured to wirelessly control the active pen, receive a user command, and generate a control command according to the user command, wherein at least one of the active pen and the electronic device is configured to execute a control function according to the control command.

Abstract: A stylus and a touch interactive device is provided. The stylus includes a pen holder, a cover plate, and a circuit control assembly. The pen holder includes a pen head, a pen wall, and an accommodating space. A groove is defined in the pen wall and communicates with the accommodating space. The pen head is arranged at one end of the pen holder. The cover plate is arranged corresponding to the groove and covers the groove. The circuit control assembly is received in the accommodating space. The circuit control assembly includes a mainboard and a touch sensing module connected to the mainboard. The touch sensing module is attached to the pen wall or a first inner wall of the cover plate to form a touch sensing area. The touch sensing module is used to receive and sense at least one touch command of fingers in the touch sensing area.

Abstract: An electronic wake-up device and a wake-up method thereof are provided. The electronic wake-up device includes: a power switch device, an electronic device, a gravity sensor, and a wake-up circuit. The wake-up circuit is coupled to the gravity sensor and the electronic device. The wake-up circuit is configured to generate an execution signal according to a sensing activation signal, and generate an electronic device control signal according to the execution signal and a gravity signal to wake up the electronic device.

Abstract: The present disclosure provides an audio data processing circuit and an audio data processing method. The audio data processing circuit includes a word select interface, a clock signal interface and an audio data interface. The word select interface is configured to receive a word select signal. The clock signal interface is configured to receive a clock signal, and generating an audio data interface signal according to a number of clocks of the clock signal in one period of the word select signal. The audio data interface is configured to transmit the audio data to a processing unit through a first transmission protocol or a second transmission protocol.

Abstract: An interactive control system includes: an active pen; and an electronic device configured to wirelessly control the active pen, receive a user command, and generate a control command according to the user command, wherein at least one of the active pen and the electronic device is configured to execute a control function according to the control command.

Abstract: The present invention discloses a noise reduction touch light adjustment device including a light adjustment film, a capacitive touch panel, a noise reduction film, a glass substrate, a control circuit module, and an alternating current (AC) transformer. The noise reduction film is disposed between the light adjustment film and the capacitive touch panel to lower noise inputted from the AC transformer into the light adjustment film such that the capacitive touch panel is ensured to be operated precisely.

Abstract: A digital audio array circuit is provided. The digital audio array circuit includes at least two digital audio units and a system master unit. Each of the digital audio units is configured to transform a received sound wave to a digital audio signal. Each of the digital audio units includes a left/right channel configuration input terminal. The system master unit is connected to the at least two digital audio units in time division multiplexing to receive the digital audio signals. The left/right channel configuration input terminal of each of the digital audio units is configured to receive a same synchronizing signal.

Abstract: A bidirectional active stylus and a sensing system are provided. The stylus includes a receiving electrode, a first emitting diode and a second emitting diode. The receiving electrode is configured to receive a synchronous signal from a touch pad. The receiving electrode is disposed at a position closer to the touch pad with respect to the first emitting diode and the second emitting diode. The strength of received signals is improved.