摘要:
An electronic device paired with an infrared remote control, includes a display screen having a display area, at least one infrared emitter, at least one infrared receiver, a prism and a processing unit. A prism is adjacent to the at least one infrared receiver for converging the infrared rays from the at least one infrared emitter and the infrared remote control to the at least one IR receiver. A processing unit is for activating and then deactivating the infrared emitters one after another, identifying operations of a user on the display area by analyzing the interception of the infrared rays emitted from each of the infrared emitters, identifying operations of a user according to the infrared signals from the infrared remote control and executing corresponding functions associated with the operations of the user.
摘要:
An input device for an electronic apparatus includes a rotary dial module and a keypad surrounding the rotary dial module. The rotary dial module includes a base plate, a flexible printed circuit board, a retainer, a rotary dial, and a plurality of contacts. The flexible printed circuit board is mounted on the base plate. The retainer is positioned above the flexible printed circuit board and is mounted on the base plate. The rotary dial is rotatably mounted on the retainer. The contacts are mounted on the flexible printed circuit board. Each of the contacts is assigned to a portion of the rotary dial and capable of forming a closed circuit when the corresponding portion of the rotary dial is pressed down and in contact with the contact. The input device has a compact size because the rotary dial can replace some keys.
摘要:
The present invention provides a charging control circuit for a rechargeable battery. The charging control circuit includes: a constant-current charging unit and a trickle charging unit. The charging control circuit further includes a branch switch, a detection switch, a control unit, and a detection unit. The branch switch is connected between a power source and the rechargeable battery for enabling or disabling the constant-current charging unit, the detection switch is turned on or off depending on the enable or disable state of the constant-current charging unit. The control unit is connected between the detection switch and the branch switch for controlling the branch switch to turn on or off depending on the off or on state of the detection switch.
摘要:
An electronic device with infrared touch input function is provided. The electronic device includes a display unit defining an signal display area; an infrared input device including a circuit board having two pairs of oppositely disposed sides defining an open area corresponding in size and shape to the signal display area, at least one light emitting device positioned on the circuit board, configured for emitting infrared light; at least one light detecting device positioned on the circuit board, configured for detecting infrared light emitted; a micro-processing unit configured for controlling the at least one light emitting device to emit infrared light, detecting infrared light paths obstructed via the light detecting devices, sending information of the obstructed infrared light paths to a central processing unit(CPU); and the CPU configured for performing functions according to the information of the obstructed infrared light paths.
摘要:
An electronic device with infrared touch input function is provided. The electronic device includes a display unit defining an signal display area; an infrared input device including a circuit board having two pairs of oppositely disposed sides defining an open area corresponding in size and shape to the signal display area, at least one light emitting device positioned on the circuit board, configured for emitting infrared light; at least one light detecting device positioned on the circuit board, configured for detecting infrared light emitted; a micro-processing unit configured for controlling the at least one light emitting device to emit infrared light, detecting infrared light paths obstructed via the light detecting devices, sending information of the obstructed infrared light paths to a central processing unit(CPU); and the CPU configured for performing functions according to the information of the obstructed infrared light paths.
摘要:
The present invention provides a portable electronic device. The device includes a first controller, a second controller, a mode switch unit, and a main controller. The mode switch unit is for a user to operate thereby generating a mode switch instruction. The main controller is for switching a work mode according to the mode switch instruction from the mode switch unit. When the mode switch unit generates a first mode switch instruction, the device enters a common work mode whereby the main controller activates the first controller and the second controller to be on standby; and when the mode switch unit generates a second mode switch instruction, the device enters a single work mode whereby the main controller activates only one of the first controller and the second controller to be on standby.
摘要:
The present invention provides a portable electronic device. The device includes a first controller, a second controller, a mode switch unit, and a main controller. The mode switch unit is for a user to operate thereby generating a mode switch instruction. The main controller is for switching a work mode according to the mode switch instruction from the mode switch unit. When the mode switch unit generates a first mode switch instruction, the device enters a common work mode whereby the main controller activates the first controller and the second controller to be on standby; and when the mode switch unit generates a second mode switch instruction, the device enters a single work mode whereby the main controller activates only one of the first controller and the second controller to be on standby.
摘要:
An electronic device includes a first rechargeable battery, a solar cell mounted on the electronic device, a second rechargeable battery and a power management circuit. The power management circuit includes a control module, a DC/DC module, a switch and a power supply switching module. The DC/DC module is configured for converting the DC power generated by the solar cell from one voltage level to another, and activating and maintaining the activation of the control module. The switch is turned on by the control module when the control module is activated, causing the DC power from the DC/DC module to charge the second rechargeable battery. The power supply switching module is controlled by the control module to select the second rechargeable battery to power the electronic device if the voltage level of the rechargeable battery is lower than that of the second rechargeable battery.
摘要:
A configuration method includes the following steps: Controlling the display unit to display visual information, determining whether the visual information includes one or more touch icons, and determining if the display areas are displaying the touch icons, if yes, determining which infrared lines correspond to the display areas. Then determining which infrared emitters and which infrared receivers form the infrared lines, and turning on the determined infrared emitters and infrared receivers, finally, turning off the other infrared emitters and infrared receivers. The invention also provides an electronic device with an infrared touch panel.
摘要:
A luminance adjusting circuit includes an LED module, a switch module and a processing unit. A table equating luminance levels and average current values is pre-stored. The processing unit includes a judging and executing module and a signal generating module. The judging and executing module achieves a desired luminance level according to trigger signals generated by a button. The signal generating module produces timing signals to turn on and turn off the switch module periodically, thereby achieving an average current value to adjust the luminance level of the LED module to the desired level.