Abstract: A playing method is executed in an electronic device. The electronic device plays information from a storage unit. The electronic device includes a non-volatile memory. The playing method includes steps of: receiving a first playing commands; obtaining information from the storage unit in response to the first playing commands; playing the obtained information; obtaining a playing position at a predetermined time interval; and storing the playing position into the non-volatile memory.

Abstract: An electronic device includes a chip and a pin configuration apparatus. The chip includes a plurality of pins with different functions. The pin configuration apparatus is used for resetting the pins from being configured to execute a first function to being configured to execute a second function.

Abstract: The invention discloses a method and system for sharing wireless traffic, the method comprising: receiving a request for sharing the wireless traffic from a requesting mobile device, the request containing a list of unique numbers of other mobile devices within a certain range of distance from the requesting mobile device; selecting, for the requesting mobile device, at least one mobile device for sharing the wireless traffic from the received list; and sending, to the requesting mobile device, the unique number of the at least one selected mobile device and its connection channel password. By virtue of the method and apparatus according to the embodiments of the present invention, traffic can be shared among mobile devices' users without participation of mobile operators, thereby saving money for the users.

Abstract: An electronic device includes a storage unit, a pressing apparatus, a processing unit, and a button unit having a number of buttons. Identification (ID) information of each of the buttons and a predetermined signal corresponding to each of the buttons are stored in the storage unit. When a control signal is generated by the button unit after a button is pressed, the ID information of the button that is pressed is obtained from the storage unit. The control signal is compared with the corresponding predetermined signal to determine whether the pressed button is malfunctional.

Abstract: An audio device is capable of switching between a first state and a second state. The audio device comprises a power supply, a delay module, a control module, a processor, and an audio-playing module. The power supply provides a working voltage when the audio device is in the second state. The delay module is connected between the power supply and the control module, and outputs a delay signal when the audio device switches between the first state and the second state. The control module for outputting a driving signal is prevented from outputting driving signal in response to the delay signal, and the processor is enabled in response to the delay signal.

Abstract: An electronic device comprises a buffer, a processing module, and a storage. When the electronic device generates a writing instruction, the processing module executes a protection and writes data of the buffer into the storage. Based on the protection, the processing module fails to execute interrupt instructions while writing data into the storage.

Abstract: An electronic device includes a storage and a processor. When the processor performs a data transmission process performed by the processor to transmit data to the storage, a time period duration of writing data into the storage is timed. An Acknowledge (ACK) signal indicating the data is successfully written into the storage is detected. If the ACK signal is not detected and the time period duration exceeds a predetermined time period, the processor restarts the data transmission process to re-transmit the data to the storage, to avoid system crash.

Abstract: An electronic device includes a main chip, a storage, and a state changing unit. The main chip includes an update pin. The storage includes a write pin and an enable pin. The enable pin is connected to a programming unit. The main chip reads and writes data into the storage when the enable pin is at a first voltage level, and sets the update pin as a GPIO interface when the main chip is powered on after a predetermined time period. The state changing unit controls the enable pin to be at another voltage level within a second predetermined time period when the main chip is powered on and sets the enable pin at the first voltage level when the second predetermined time period elapses. The programming unit updates programs of the storage via the update pin and the write pin when the second predetermined time period elapses.

Abstract: An electronic device is capable of switching between a standby state and a working state. The electronic device includes a power management module, a key module, a detection module, a processor, and a trigger module. When the electronic device is in the standby state, the power management stops outputting a working voltage to the detection module and the detection module is disabled. When the electronic device switches from the standby state into the working state by operating the key module, the trigger module generates a trigger signal. The processor controls the power management module to output the working voltage to the detection module in response to the trigger signal. The detection module detects the pressed key voltage of the key module and generates a pressed signal for controlling the processor to execute a corresponding function.

Abstract: Multi-level power converters are disclosed. In one embodiment, a multi-level power converter includes an input for receiving an input voltage and a converter output for providing a variable output voltage. The multi-level power converter includes a plurality of switching circuits. Each switching circuit is connected to the input in parallel with each other switching circuit. Each switching circuit includes an output. Each switching circuit is selectively operable to couple its output to the input voltage or a reference voltage. The multi-level power converter includes a parallel multi-winding autotransformer (PMA). The PMA includes a plurality of windings and a magnetic core having a plurality of magnetically connected columns. Each winding is positioned around a different one of the columns and has a beginning and an end. The output of each switching circuit is coupled to the beginning of a different winding. The end of each winding is connected to the converter output in parallel with each other winding.

Abstract: An electronic device includes a power supply, a power consuming module, and a power control module. The power control module includes a capacitor, a detecting unit, and a control unit. A first end of the capacitor is connected to the power supply. Another end of the capacitor is grounded. The control unit includes a switching element. When the electronic device is powered on, the detecting unit controls the switching element to turn off, and the power supply supplies power to the power consuming module to charge the capacitor. When the electronic device is powered off, the capacitor discharges to supply power to the power consuming module. The detecting unit detects whether data storage of the electronic device is completed. When the data storage is completed, the detecting unit controls the switching element to turn on, causing the capacitor to discharge to ground. A power control module is also provided.

Abstract: A test device for testing functions of buttons of a remote control includes a storage unit, a pressing apparatus, and a processing unit. Identification (ID) information of each of the buttons and a predetermined code corresponding to each of the buttons are stored in the storage unit. When a control signal is received from the remote control after a button is pressed, the control signal is decoded to obtain a code of the control signal and the ID information of the button, which is being pressed. The code of the control signal is compared with the predetermined code stored in the storage unit corresponding to the pressed button to determine whether the pressed button is malfunctional.

Abstract: An electronic device powered by a power supply is capable of playing video files. The electronic device includes a processor, a delay circuit, and a storage. The delay circuit disconnects the processor with the power supply, and outputs a record signal and a working voltage. The processor is powered on by the working voltage and records a current position of a playing video file in the storage in response to the record signal. The delay circuit further stops outputting the working voltage after a predetermined interval.

Abstract: The invention relates to a player interaction method and device, a television, and a playing apparatus. The method includes detecting a trigger event generated through a control button on a remote control or on a player by a user; and determining a current page display status, and according to the trigger event and the page display status, linking to a corresponding display for displaying, and executing a corresponding play event. The device includes a detection module and a determination module. The television and the playing apparatus include the interaction device. According to the invention, a type of a detected trigger event is determined, and a corresponding display is linked to according to a current page display status for displaying, thereby making it easier for a user to perform identification, and reducing the operation complexity.

Abstract: Method for detecting presses on buttons of an electronic device with a reduced number of General Purpose In/Out (GPI/O) ports includes a number of the GPI/O ports The number of the buttons is greater than the number of the GPI/O ports. A proportion of the buttons are each coupled between one of the I/O ports and ground, and the remaining proportion of the buttons are each coupled between any two of the I/O ports. The GPI/O ports are set to work in a first working state or in a second state to provide a first signal or second signal respectively. When a signal provided by a GPI/O port working at the first working mode changes, the method determines which one of the buttons has been pressed.

Abstract: An electronic device includes a first voltage module, a second voltage module, a key circuit, and a processor. The key circuit controls the first voltage module to provide different voltages to the processor based on different operations of user. The processor determines whether the voltage provided by the first module is changed by one pressed key from the key circuit. When the voltage provided by the first module is changed by two pressed keys from the key circuit, the processor does not compares the voltage provided by the first module to standard voltages and does not execute any function.

Abstract: A dual-use light fixture having AC and DC LEDs includes a heat-dissipating housing, a printed circuit board located on a first end of the heat-dissipating housing, AC and DC LED chips located on the printed circuit board, and a power supply pedestal coupled to a second end of the heat-dissipating housing. The power supply pedestal includes an AC plug, a DC driving unit, and a thread connector. The AC plug is electrically connected to the printed circuit board for inserting into an AC outlet to provide an AC power. The DC driving unit is located in an accommodating space formed by the power supply pedestal and the heat-dissipating housing and is electrically connected to the printed circuit board. The thread connector is coupled to another AC power, and the AC power is converted into a DC power by the DC driving unit.

Abstract: An electronic device with an anti-bounce key function includes a first voltage module, a second voltage module, a key module, a processor, and a bounce protection circuit. The first voltage module provides a first voltage, and the second voltage module provides a second voltage. The key module with a number of keys generates a pressing signal when a key is pressed. The bounce protection circuit connected between the key module and the processor is powered by the first voltage module. Each of the keys, when pressed, corresponds to a predetermined period of time. The bounce protection circuit counts time when the key module generates a pressed signal, and transmits the pressed signal to the processor when the elapsed time is more than the predetermined period of time corresponding to the pressed key.

Abstract: In one aspect of the invention, a method for a remote control to input characters to a display device includes: in response to a character input request sent by a remote control, displaying an input box and a soft keyboard, where the soft keyboard includes a plurality of preset single characters or strings, and each string at most includes four characters; in response to a position movement instruction sent by a button on the remote control, moving a cursor to a target character, where buttons on the remote control include arrow buttons and an Ok button; and in response to an input confirmation instruction sent by a button on the remote control, inputting the target character to the input box.

Abstract: A data recovery system for recovering at least one system parameter of an electronic device. The electronic device comprises a first storage module for storing a check parameter and the system parameter, and a second storage module for storing a first default value corresponding to the check parameter and at least one second default value corresponding to the system parameter. The data recovery system comprises an obtaining module for obtaining a check parameter when the electronic device starts up, a determining module for determining whether the check parameter matches the first default value, and a recovery module for recovering the system parameter to a second default value when the check parameter is not the first default value. A storage medium with a recovery function and a data recovery method applied in the data recovery system are also disclosed.