Abstract: A charger, including a power conversion circuit, a charging interface, and an overcurrent protection circuit, where the charging interface includes a power cable, a ground cable, a signal cable, a resistor and a switch device, where a first end of the resistor is connected to the power cable, a second end of the resistor is connected to the signal cable, in a process in which the charger charges a terminal device and when a difference between a voltage of a first end of the switch device and a voltage of a second end of the switch device is greater than or equal to a first voltage threshold, the second end and a third end of the switch device are connected such that the power cable and the ground cable are connected to generate an overcurrent, and the overcurrent protection circuit controls the power conversion circuit to stop current output.

Abstract: A charger, including a power conversion circuit, a charging interface, and an overcurrent protection circuit, where the charging interface includes a power cable, a ground cable, a signal cable, a resistor and a switch device, where a first end of the resistor is connected to the power cable, a second end of the resistor is connected to the signal cable, in a process in which the charger charges a terminal device and when a difference between a voltage of a first end of the switch device and a voltage of a second end of the switch device is greater than or equal to a first voltage threshold, the second end and a third end of the switch device are connected such that the power cable and the ground cable are connected to generate an overcurrent, and the overcurrent protection circuit controls the power conversion circuit to stop current output.

Abstract: A charger, including a power conversion circuit, a charging interface, and an overcurrent protection circuit, where the charging interface includes a power cable, a ground cable, a signal cable, a resistor and a switch device, where a first end of the resistor is connected to the power cable, a second end of the resistor is connected to the signal cable, in a process in which the charger charges a terminal device and when a difference between a voltage of a first end of the switch device and a voltage of a second end of the switch device is greater than or equal to a first voltage threshold, the second end and a third end of the switch device are connected such that the power cable and the ground cable are connected to generate an overcurrent, and the overcurrent protection circuit controls the power conversion circuit to stop current output.

Abstract: A charger, including a power conversion circuit, a charging interface, and an overcurrent protection circuit, where the charging interface includes a power cable, a ground cable, a signal cable, a resistor and a switch device, where a first end of the resistor is connected to the power cable, a second end of the resistor is connected to the signal cable, in a process in which the charger charges a terminal device and when a difference between a voltage of a first end of the switch device and a voltage of a second end of the switch device is greater than or equal to a first voltage threshold, the second end and a third end of the switch device are connected such that the power cable and the ground cable are connected to generate an overcurrent, and the overcurrent protection circuit controls the power conversion circuit to stop current output.

Abstract: A wireless card including a wireless power receiving module configured to receive wireless power supply from a first wireless user equipment in a first time period, to obtain first power; a wireless communications module, electrically connected to the wireless power receiving module, and configured to use the first power in the first time period and use ultra-wideband impulse radio to perform wireless communication with the first wireless user equipment; a contact-type power supply module, electrically connected to the wireless power receiving module, and configured to use the first power in the first time period to supply power to an inserted memory card; a first contact-type communications module, electrically connected to the wireless power receiving module, in communication connection with the wireless communications module, and configured to use the first power in the first time period to perform contact-type communication with the memory card.

Abstract: An intelligent terminal and a method for displaying an input operation interface thereof are disclosed, where the method includes determining whether a user performs an input operation on the input operation interface of the intelligent terminal using a right hand or a left hand; if a result of determining is that the user performs the input operation using the right hand, setting input keys, which are on the input operation interface, to be arranged from right to left according to a preset rule; and if a result of determining is that the user performs the input operation using the left hand, setting the input keys, which are on the input operation interface, to be arranged from left to right according to the preset rule.

Abstract: The present invention provides a wireless expansion card including: a contact power receiving module, configured to: in a first time period, receive contact power supply of a first contact user equipment to obtain first electric power; a contact communications module, electrically connected to the contact power receiving module, and configured to: in the first time period, perform first contact communication with the first contact user equipment to transmit a first read/write instruction and first data that needs to be read or written according to the first read/write instruction; and a wireless communications module, electrically connected to the contact power receiving module, in communication connection with the contact communications module, and configured to: in the first time period, use the first electric power, to perform first wireless communication with a first wireless peripheral device by using ultra-wideband impulse radio to transmit the first read/write instruction and the first data.

Abstract: The present invention provides a memory card including: a wireless power supply module, configured to obtain first power from a first wireless external device in a first time period; a contact-type power supply module, configured to obtain second power from a first contact-type external device in a second time period; a wireless communications module, configured to perform wireless communication with the first wireless external device by using ultra-wideband impulse radio in the first time period, to transmit a first read/write instruction; a contact-type communications module, configured to perform contact-type communication with the first contact-type external device in the second time period, to transmit a second read/write instruction; and a storage control module, configured to read or write data corresponding to the first read/write instruction in the first time period and read or write data corresponding to the second read/write instruction in the second time period.

Abstract: A wireless card including a wireless power receiving module configured to receive wireless power supply from a first wireless user equipment in a first time period, to obtain first power; a wireless communications module, electrically connected to the wireless power receiving module, and configured to use the first power in the first time period and use ultra-wideband impulse radio to perform wireless communication with the first wireless user equipment; a contact-type power supply module, electrically connected to the wireless power receiving module, and configured to use the first power in the first time period to supply power to an inserted memory card; a first contact-type communications module, electrically connected to the wireless power receiving module, in communication connection with the wireless communications module, and configured to use the first power in the first time period to perform contact-type communication with the memory card.