Abstract: An electronic device used for writing memos includes a storage unit, a display unit, a touch input unit, and a processor. The storage unit is used for storing an electronic calendar and a memo file written by a user. The touch input unit senses touch input of handwritten content on the displayed electronic calendar by the user and generating signals associated with the user's touch input, and recognizes handwritten content of the user according to the generating signals. The processor includes an identification module and a memo adding module. The identification module determines a date associated to the created handwritten content according to the generated signals. The memo adding module automatically adds the recognized handwritten content to the memo file stored in the storage unit of the determined date. A method for writing memos is also described.

Abstract: A method for verifying signatures includes the following steps. Generate corresponding input signals in response to user's operation for inputting a signature on an electronic device. Then detect coordinates of the handwriting of the user's signature. Extract the feature of the user's signature according to the detected coordinates. Generate a user identifier according to the extracted feature of the user's signature, and transmit the extracted feature of the user's signature and the generated user identifier to a server. Retrieve the feature of signature corresponding to the user identifier recording in the storage unit. And finally, compare the retrieved feature of signature with the received feature of the user's signature transmitted from the electronic device, to verify whether they are the same; and transmit the verified result to the electronic device. An electronic device and a signature verifying system are also provided.

Abstract: An office device includes a storage unit, a touch input unit, and a processor. The touch input unit displays a handwriting input screen for allowing a user perform a touch input of a handwritten note thereon and generates signals in response to user's touch input. The processor includes a page flipping module, a storage module, an image processing module, a format conversion module, and a control module. The page flipping module detects a page flipping gesture. The storage module stores content of the handwritten note in the storage unit if the page flipping gesture is detected. The image processing module detects and recognizes touch input of a handwritten signature. The format conversion module combines the handwritten note and the handwritten signature into a file and converts the file into a predetermined format. The control module controls transmitting the converted file to an electronic device.

Abstract: A method for writing memos includes the following steps. Recognize touch input of handwritten content on a touch sensing device by a user. Automatically add a memo containing the recognized handwritten content to a memo file associated with a memo date in a calendar, if the recognized handwritten content of the user comprises a memo date. And store the memo file in a storage unit. An electronic device using the method is also described.

Abstract: A method for inserting images includes the following steps. Sense a touch trace of a user forming a closed loop having an enclosed region and generating a trigger signal if the touch trace forms a closed loop having an enclosed region. Sense handwritten touch input by the user within the enclosed region and generating signals associated with the user's handwritten touch input. Display the closed loop and the sensed handwritten touch input of the user. Determine whether the sensed handwritten touch input associates with an image inserting command in response to the trigger signal. Retrieve an image selected by the user from a storage unit, if the sensed handwritten touch input associates with an image inserting command. And display the selected image within the an enclosed region of the closed loop. An electronic device using the method is also provided.

Abstract: A method for printing and faxing is used for an electronic device storing a relationship table. The relationship table records a mapping relationship between touch input and a plurality of commands. The method comprises the following steps. Display an electronic file selected by a user. Then generate signals in response to user's touch input on the displayed electronic file. Determine whether a command associated with the touch input of the user is a printing command or a fax command according to the generated signals and the relationship table. Retrieve circled content of the displayed electronic file circled by the user when the command associated with the touch input of the user is the printing command or the fax command; and send the circled content to a printer or send the circled content to a fax machine selected by the user. An electronic device using the method is also provided.

Abstract: An electronic device includes a storage unit, a touch input unit, a display unit, and a processor. The storage unit stores a relationship table recording a mapping relationship between touch inputs and a number of commands associated with the touch inputs. The touch input unit generates signals in response to user's touch input. The processor includes a control module and an identification module. The control module controls displaying the sensed handwritten content on the display unit. The identification module recognizes the touch input of the sensed handwritten content and identifies if the touch input of the recognized handwritten content is associated with a command according to the signals and the relationship table. The control module also controls the electronic device to execute the associated command.

Abstract: A control circuit for an electrical load in an electronic device includes a voltage divider, a current measurement circuit, a variable-current-output switch and a comparison circuit, the voltage entering the load and the voltage (and thus current) exiting from the load being monitored and compared to a reference voltage, any difference causing the switch to dynamically adjust the level of current being supplied, to protect the load from sudden variations in power supply and ensure a stable and constant supply of power.

Abstract: 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.

Abstract: A remote control comprises a button generating control signals; a transmission unit configured to transmit the control signals to an electronic reader; a microprocessor unit configured to analyze an operation type according to the control signals and generate operation signals corresponding to the operation type to signal the electronic reader to flip page. A remote control method applied in a remote control of an electronic reader is also provided.

Abstract: An LED lighting device is provided. The LED lighting device includes a processing unit, a sensor, a MOSFET, and an LED. When the sensor detects a frequency or voltage fluctuation, the processing unit modulates the duty cycle of the MOSFET to reduce the energy consumption of the LED light device and improve the efficiency of luminance of the LED lighting device.

Abstract: A solar power system includes a solar panel for converting solar power into direct current power. The solar power system further includes an electric power detecting device, an elevator mechanism, an electric current control unit and a fixing mechanism. The elevator mechanism mechanically pulls a weight under a direct current motor and drives the direct current motor to rotate to generate electric power when the weigh falls. The electric current control unit outputs the direct current power to the direct current motor when the direct current power is equal to a predetermined value and stops outputting the direct current power when the weight is pulled to a predetermined. The fixing mechanism keeps the weight staying at the predetermined height and enables the weight to fall so that the elevator mechanism driving the direct current motor to rotate to generate electric power.

Abstract: 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.

Abstract: A solar power supply device includes a solar panel and a rechargeable battery. The solar panel is configured to collect and convert optical energy to electrical energy. The solar power supply device further includes an e-paper display unit, a charging connection connecting to a rechargeable device. A detecting unit detecting the charging state information of the rechargeable device via the charging connection, a light-operated unit detecting ambient illumination intensity, and a processing unit for controlling the e-paper display unit to display charging states information obtained from the detecting unit and the ambient illumination intensity detected by the light-operated unit.

Abstract: An electronic billboard includes a display unit, a storage unit, a distance detection unit, and a processing unit. The storage unit stores a relationship table recording a relation between viewer distances and zoom proportions of displayed content by the display unit. The distance detection unit detects viewer distances of viewers. The processing unit controls a display mode of the display unit according to a comparison result of a viewer distance with a predetermined distance.