Abstract: A battery protection circuit of an electronic device having a battery includes a first switch component, a temperature detection unit, an amplifier, a comparator, and a controller. The first switch component is connected between an input voltage and the battery, to charge the battery. The temperature detection unit detects a temperature of the battery, and converts the temperature into a voltage signal. The amplifier is connected to the comparator to amplify the voltage signal and output the amplified voltage signal to the comparator. The comparator is connected to the controller to compare the amplified voltage signal with a reference voltage Vref. The controller is connected to the first switch component to turn off the first switch component to stop charging the battery when the amplified voltage signal is greater than the reference voltage Vref.

Abstract: An automobile includes a main body, and an infrared detecting unit on the front portion of the main body. The infrared detecting unit includes an infrared emitter connected to a motor, and an infrared receiver. An anti-collision method includes controlling the motor to rotate to rotate the infrared emitter. Controlling the rotating infrared emitter at each rotated position to emit infrared lights with an effective projection range L which form an illuminating trajectory spaced from the front portion by a distance S. Calculating a height of a protruding portion on the road surface according to the effective projection range L, the distance S, and the distance between the infrared detecting unit and the road surface H, if the infrared receiver receives the reflected infrared lights reflected by the protruding portion. Actions are preformed to protect the automobile if the calculated height is greater than a preset value.

Abstract: A battery protection circuit of an electronic device having a battery includes a first switch component, a temperature detection unit, an amplifier, a comparator, and a controller. The first switch component is connected between an input voltage and the battery, to charge the battery. The temperature detection unit detects a temperature of the battery, and converts the temperature into a voltage signal. The amplifier is connected to the comparator to amplify the voltage signal and output the amplified voltage signal to the comparator. The comparator is connected to the controller to compare the amplified voltage signal with a reference voltage Vref. The controller is connected to the first switch component to turn off the first switch component to stop charging the battery when the amplified voltage signal is greater than the reference voltage Vref.

Abstract: An automobile includes a main body, and an infrared detecting unit on the front portion of the main body. The infrared detecting unit includes an infrared emitter connected to a motor, and an infrared receiver. An anti-collision method includes controlling the motor to rotate to rotate the infrared emitter. Controlling the rotating infrared emitter at each rotated position to emit infrared lights with an effective projection range L which form an illuminating trajectory spaced from the front portion by a distance S. Calculating a height of a protruding portion on the road surface according to the effective projection range L, the distance S, and the distance between the infrared detecting unit and the road surface H, if the infrared receiver receives the reflected infrared lights reflected by the protruding portion. Actions are preformed to protect the automobile if the calculated height is greater than a preset value.

Abstract: A computerized method for managing phone numbers stored in a communication device, the communication device communicates with a communication service terminal provided by a telecommunication company. The communication device sends a request message for requesting to acquire a usage state of each of the phone numbers to the communication service terminal, and then detects which of the phone numbers have the usage state that matches one or more predetermined states. Any detected phone number which usage state matches the one or more predetermined states is deleted from the communication device.

Abstract: A computerized method for managing phone numbers stored in a communication device, the communication device communicates with a communication service terminal provided by a telecommunication company. The communication device sends a request message for requesting to acquire a usage state of each of the phone numbers to the communication service terminal, and then detects which of the phone numbers have the usage state that matches one or more predetermined states. Any detected phone number which usage state matches the one or more predetermined states is deleted from the communication device.

Abstract: A voice prompt method includes obtaining an image of a user and storing the obtained image as a characteristic image when users successfully log onto an automated teller machine; taking photographs of the location surrounding the automated teller machine at predetermined time intervals to obtain real-time images; judging whether the person of the characteristic image is the same as the person in the real-time image; detecting whether the distance between the user and the automated teller machine is larger than a predetermined value if the person in the two images is judged to be the same; and generating a voice prompt to remind the user not to forget to remove his/her bank card if the distance between the user and the automated teller machine becomes larger than a predetermined value. An automated teller machine is also provided.

Abstract: A voice prompt method includes obtaining an image of a user and storing the obtained image as a characteristic image when users successfully log onto an automated teller machine; taking photographs of the location surrounding the automated teller machine at predetermined time intervals to obtain real-time images; judging whether the person of the characteristic image is the same as the person in the real-time image; detecting whether the distance between the user and the automated teller machine is larger than a predetermined value if the person in the two images is judged to be the same; and generating a voice prompt to remind the user not to forget to remove his/her bank card if the distance between the user and the automated teller machine becomes larger than a predetermined value. An automated teller machine is also provided.

Abstract: A remote controller includes a processor, a display unit, a input unit, a communicator. The processor is configured to generate a mode interface. The display unit is configured to display the mode interface. The input unit is configured to generate control commands under the condition that a user presses the input unit according to the mode interface displayed on the display unit. The processor generates a plurality of remote control signals according to the control commands and transmits the remote control signals to a communicator. The communicator is configured to emit remote control signals to at least two electric appliances to control at least two electric appliances. A remote control method using the remote controller is also provided.

Abstract: A communication terminal includes an electronic phonebook, a status requesting unit, a communication unit and an updating unit. The electronic phonebook records phone numbers, and a communicating status corresponding to each of the phone numbers. The status requesting unit generates a request of reading the communicating statuses of the monitored phone numbers in the electronic phonebook. The communication unit transmits the generated request to a communication switching center and receives the communicating statuses of the monitored phone numbers transmitted by the communication switching center. The updating unit updates the communicating statuses of the monitored phone numbers according to the received communicating statuses.