Abstract: A two-part conductive shield for an object or vehicle likely to suffer surface damage includes a first film on an outer surface of the vehicle, and a second film on an inner surface of the vehicle. The films may be applied as coatings. Capacitance of the conductive shield can be measured for reference and for in-use purposes, thus determining whether there is a change in an area of the first film opposite to the second film can indicate a scratch or other surface damage, and an instant warning or prompt given. A scratch detecting apparatus and a scratch detecting method are also provided.

Abstract: A method for controlling an electronic device is provided. The electronic device has a child mode and an adult mode. The method includes capturing a touch image of a finger contacting with a touch screen when a touch operation is applied to unlock the touch screen. An area value of a touch image of the finger contacting with the touch screen is calculated based on the captured touch image and compared with one or more predefined area values. The user is determined to be a child or an adult according to the comparison result. The electronic device is controlled to alternatively enter the adult mode or the child mode based on the determination result.

Abstract: A voice control method is applied in an electronic device. The electronic device includes a voice input unit, a play unit, and a storage unit storing a conversation database and an association table between different ranges of voice characteristics and styles of response voice. The method includes the following steps. Obtaining voice signals input via the voice input unit. Determining which content is input according to the obtained voice signals. Searching in the conversation database to find a response corresponding to the input content. Analyzing voice characteristics of the obtained voice signals. Comparing the voice characteristics of the obtained voice signals with the pre-stored ranges. Selecting the associated response voice. Finally, outputting the found response using the associated response voice via the play unit.

Abstract: A method for controlling an electronic device is provided. The electronic device has a child mode and an adult mode. The method includes capturing a touch image of a finger contacting with a touch screen when a touch operation is applied to unlock the touch screen. An area value of a touch image of the finger contacting with the touch screen is calculated based on the captured touch image and compared with one or more predefined area values. The user is determined to be a child or an adult according to the comparison result. The electronic device is controlled to alternatively enter the adult mode or the child mode based on the determination result.

Abstract: An electronic device includes a charging socket, a protection circuit, and a battery. The charging socket includes a charging pin. The charging pin is detachably connected to a charging plug of a power supply device, receives power from the power supply device, and transmits the power to the battery. The protection circuit is connected between the battery and the charging socket, and controls whether the battery is electrically connected to the charging pin. During a process of disconnecting the charging socket from the charging plug, the protection circuit disconnects the battery from the charging pin before the charging pin is disconnected from the charging plug.

Abstract: In a method for detecting working states of I/O pins of electronic components, a signal is transmitted between at least two of the I/O pins. A probe of an oscilloscope is connected to an I/O pin. A waveform of the signal through the I/O pin is detected. Charges are transmitted to the probe. A working state of the I/O pin is determined by detecting whether the waveform of the signal through the I/O pin is changed when the charges are transmitted to the probe.

Abstract: An exemplary mobile phone is for determining a using state of each of other mobile phones communicatively connected with the mobile phone. The mobile phone includes a first communicating unit, a power switch, a using state determining unit, a second communicating unit, and a control unit. The using state determining unit determines the using state of the mobile phone by monitoring the first communicating unit and the power switch. The control unit controls the second communicating unit to transmit a contact ID and the using state of the mobile phone to a mobile switching center (MSC) via a base station (BS). Each one of the other mobile phones obtains the using state of the mobile phone from the MSC by transmitting the contact ID of the mobile phone via the BS, and updates the using state of the contact ID in the address list with the obtained using state.

Abstract: An output controller and an method for outputting a signal flow to one or more earphone jacks according to a connection status of each earphone jack. The output controller includes an interface unit having more than one earphone jacks and an output control unit. The output control unit includes a signal input terminal for receiving a signal flow, a detector, and a determining module. The detector detects whether each earphone jack is connected with an earphone and outputs one or more detected signals representing the connection status of the earphone jacks. The determining module outputs the signal flow directly to the connected earphone jack if only one earphone jack is connected to the earphone or distributes the signal flow being amplified correspondingly into each connected earphone jack if more than one earphone jack is connected to the earphones.

Abstract: A touch method is provided for reconfiguring icons displayed on an electronic device including a touch screen. The method includes determining which hand the user is using to operate the electronic device if the user operates the electronic device in a one-handed manner. Determining which icons displayed on the touch screen are preferred by the user. Moving the determined icons to a first area of the touch screen if the user operates the electronic device using a left hand. Moving the determined icons to a second area of the touch screen if the user operates the electronic device using a right hand.

Abstract: An electronic device includes a charging socket, a protection circuit, and a battery. The charging socket includes a charging pin. The charging pin is detachably connected to a charging plug of a power supply device, receives power from the power supply device, and transmits the power to the battery. The protection circuit is connected between the battery and the charging socket, and controls whether the battery is electrically connected to the charging pin. During a process of disconnecting the charging socket from the charging plug, the protection circuit disconnects the battery from the charging pin before the charging pin is disconnected from the charging plug.

Abstract: A digital communication system comprising a host and a client, the host calls the client via two transmission lines. The host includes a processor, a first control unit, a second control unit, a high frequency transformer and an interface unit. The digital communication system utilizes the first control unit and the high frequency transformer to modulate outgoing signals. The digital communication system utilizes the second unit and the high frequency transformer to demodulate incoming signals.

Abstract: An communication circuit of a communication device includes an interface unit, a direct current (DC) control circuit, a voice output circuit includes a voice input terminal, and a voice receiving circuit includes a voice output terminal. The interface unit outputs human speech and receives human speech from another communication device. The DC control circuit provides a constant current for the optocoupler circuit. When the outgoing human speech is coupled to the DC control circuit by a first optocoupler and sent to another communication device and incoming human speech is transmitted from the other communication device via the DC control circuit and a second optocoupler, echoes and extraneous noise in the speech is reduced.

Abstract: A voice control method is applied in an electronic device. The electronic device includes a voice input unit, a play unit, and a storage unit storing a conversation database and an association table between different ranges of voice characteristics and styles of response voice. The method includes the following steps. Obtaining voice signals input via the voice input unit. Determining which content is input according to the obtained voice signals. Searching in the conversation database to find a response corresponding to the input content. Analyzing voice characteristics of the obtained voice signals. Comparing the voice characteristics of the obtained voice signals with the pre-stored ranges. Selecting the associated response voice. Finally, outputting the found response using the associated response voice via the play unit.

Abstract: A power management circuit includes an input, a switch circuit, a first control unit, a second control unit, and a voltage conversion circuit. The input is connected to a load and receives a first direct current (DC) voltage from an external power circuit. The switch circuit is connected between the load and a battery. The first control unit is configured to control whether the switch circuit is switched on or off, based on the first DC voltage and an output voltage of the battery. The voltage conversion circuit is configured to convert the first DC voltage into a second DC voltage and output the second DC voltage to charge the battery. The second control unit is configured to control whether the voltage conversion circuit converts the first DC voltage into the second DC voltage for charging the battery, based on the first DC voltage and the output voltage.

Abstract: A switching power supply includes an input terminal, a voltage converter, a feedback circuit, and a pulse width modulation (PWM) controller. The input terminal receives a first direct current (DC) voltage. The voltage converter transforms the first DC voltage into a second DC voltage and provides the second DC voltage to a load via transmission lines. The feedback circuit is configured for detecting voltage lost across the transmission lines. The PWM controller controls the voltage converter to adjust the second DC voltage according to the voltage loss.

Abstract: The disclosure provides an emergency message transmission method and an electronic device implementing the method. The electronic device stores a reference voltage value and comprises a smoke assessing unit. The method includes steps: capturing air composition around the electronic device, assessing whether the air composition has changed, if the air composition has changed, detecting an electrical current of the smoke assessing unit, amplifying the electrical current and converting the amplified current to a voltage value, comparing the converted voltage value with the reference voltage value, judging whether the converted voltage value reaches the reference voltage value, and if the converted voltage value reaches the reference voltage value, outputting a signal including an emergency message.

Abstract: The disclosure provides an electronic device and a detecting position method adapted for the electronic device. The device stores an infrared sensing mode and a capture mode. The method includes steps of: entering the infrared sensing mode in response to an input signal and capturing infrared signals from an external environment, amplifying the infrared signals and converting the infrared signals into digital signals, evaluating whether part of the infrared signals falls into a predetermined waveband, if yes, focusing on an infrared thermal source whose infrared signals fall into the predetermined waveband, switching from the infrared sensing mode to the capture mode, taking a photo of the infrared thermal source, and processing the photo to identify a position of the infrared thermal source in the photo and displaying the position of the infrared thermal source in the photo.

Abstract: A current leakage protection circuit includes a first input terminal, a second input terminal for receiving a power voltage and a current leakage detection terminal configured for detecting a current leakage from an electronic device. A control circuit of the current leakage protection circuit is configured for providing a control signal to control a first switch circuit to switch off a first connection between the first input terminal and a first output terminal and to control a second switch circuit to switch off a second connection between the second input terminal and a second output terminal when the current leakage detection terminal detects current leakage of the electronic device.

Abstract: A communication terminal device includes a magnetic sensor, a processor, and a power control module. The magnetic sensor detects a current magnetic field generated by induction of internal current in internal circuits of the communication terminal device, and provides a value of strength of the current magnetic field to the processor. The processor compares the value of the strength of the current magnetic field with preset values, and obtains a comparison result. In a situation that the processor determines that the current magnetic field is anomalous according to the comparison result, the processor controls the power control module to withhold power to the communication terminal device.

Abstract: A communication device includes a communication unit, a speech recognition module, and a processor. The communication unit builds a communication between the communication unit and an external communication device. The processor records speech between the communication device and the external communication device. The speech recognition module compares each word of the recorded speech with voice samples to determine whether numbers have been spoken. The processor further determines if successive numbers are recorded in a predetermined period, and stores the successive numeric in a storage unit.