Abstract: The present disclosure relates to a method and system for determining a rational width of a gob-side working face under a condition of thick and hard key strata. The method includes: constructing a piecewise function with a width of a gob-side working face as an independent variable; obtaining values of parameters of the gob-side working face; determining a solution set based on the values of the parameters of the gob-side working face, the piecewise function, and a predetermined function threshold; and determining a numerical value according to the solution set as a rational width and mining the gob-side working face according to the rational width.

Abstract: A fingerprint based communication terminal and method, a server and method thereof are disclosed. The terminal includes a fingerprint processing module, a processing module, a storage module, and a communication module. The fingerprint processing module is configured to obtain fingerprint information; the processing module is configured to verify the fingerprint information through a network to obtain a fingerprint phone number bound to the fingerprint information, and bind the fingerprint phone number to the terminal; the storage module is configured to store the fingerprint phone number obtained by the processing module; and the communication module is configured to read the fingerprint phone number in the storage module for performing communication.

Abstract: A fingerprint based communication terminal and method, a server and method thereof are disclosed. The terminal includes a fingerprint processing module, a processing module, a storage module, and a communication module. The fingerprint processing module is configured to obtain fingerprint information; the processing module is configured to verify the fingerprint information through a network to obtain a fingerprint phone number bound to the fingerprint information, and bind the fingerprint phone number to the terminal; the storage module is configured to store the fingerprint phone number obtained by the processing module; and the communication module is configured to read the fingerprint phone number in the storage module for performing communication.

Abstract: A communication module and corresponding portable terminal are provided. The communication module includes an NGFF interface, a switch unit, a charge protection unit, and a delay unit. The switch unit is for controlling connection and disconnection of a power supply between a power supply end of the communication module and the power supply pins. The charge protection unit is for power charging when the switch unit is turned off, and for eliminating an impact current generated at the instant when the switch unit is turning on. The delay unit is for controlling the switch unit's delay turning on. The communication module and corresponding portable terminal are able to ensure the integrality and stability of data.

Abstract: A communication method for a smart home controller which may include a smart home controller, which establishes a network connection with household appliances. The smart home controller receives a data packet sent by a household appliance. The smart home controller may determine the protocol type of the communication protocol supported by the household appliance through the protocol identifier. The smart home controller may select, based on the determination result, a protocol analysis program corresponding to the protocol type of the communication protocol from a plurality of protocol analysis programs, and may use the protocol analysis program to analyze the data packet, thereby achieving data transmission with the household appliance. At least one embodiment can realize data transmission between the smart home controller and a plurality of household appliances.

Abstract: A charger includes a first universal serial bus (USB) interface; an AC/DC module, a gating module, and a first control module. The AC/DC module is configured to convert an AC voltage to a DC voltage, and output at least two charging voltages. The gating module is configured to selectively connect to an output end corresponding to the charging voltages. The first control module is configured to control, according to level states of a positive data line end and a negative data line end of the first USB interface, the gating module to select an output end.

Abstract: A communication module and corresponding portable terminal are provided. The communication module includes an NGFF interface, a switch unit, a charge protection unit, and a delay unit, The switch unit is for controlling connection and disconnection of a power supply between a power supply end of the communication module and the power supply pins. The charge protection unit is for power charging when the switch unit is turned off, and for eliminating an impact current generated at the instant when the switch unit is turning on. The delay unit is for controlling the switch unit's delay turning on. The communication module and corresponding portable terminal are able to ensure the integrality and stability of data.

Abstract: An intelligent terminal that allows for replacement of a wireless communication device by a user is disclosed, which comprises an intelligent terminal body and the wireless communication device having a SIM card. The wireless communication device is detachably inserted in a slot of the intelligent terminal body and connected to the intelligent terminal body via an interface, and the outer surface of the wireless communication device matches with the outer surface of the intelligent terminal body, such that the wireless network accessing function of the ultra-thin intelligent terminal is ensured even when no WiFi or 4G network resources are available. Meanwhile, this intelligent terminal can prevent the wireless network accessing device from being subjected to external impact and the consequent damage on the interface. Moreover, the detachable wireless communication device also makes it convenient for the user to choose different kinds of wireless network accessing devices freely.

Abstract: An intelligent terminal that allows for replacement of a wireless communication device by a user is disclosed, which comprises an intelligent terminal body and the wireless communication device having a SIM card installed therein. A slot for accommodating the wireless communication device is disposed at a side of the intelligent terminal body, the wireless communication device is detachably inserted in the slot and connected to the intelligent terminal body via an interface, and the outer surface of the wireless communication device matches with the outer surface of the intelligent terminal body. Because the intelligent terminal adopts a wireless communication device whose outer surface matches with the outer surface of the body of the intelligent terminal, the wireless network accessing function of the ultra-thin intelligent terminal (e.g., a tablet computer) is ensured even when no WiFi or 4G network resources are available.

Abstract: A system, method, and computer program product are provided for bi-directional communication. The system includes a first host capable of transmitting multiplexed data at a first transmission rate and operating with a first congestion window. The first host is also capable of receiving multiplexed data at a second transmission rate from a second host capable of operating with a second congestion window. The first host can be capable of configuring at least one of a size of the first congestion window and a size of the second congestion window based upon first transmission rate, the size of the second congestion window, the second transmission rate and the size of the first congestion window.