Abstract: An RJ-type plug mating with an RJ-type housing includes a plug body. The plug body includes a latching block and a latching beam respectively protruding from two opposite surfaces thereof. The latching block includes a resisting end connecting to the first surface, a front end opposite to the resisting end, and a guiding surface connecting the resisting end and the front end. The guiding surface is operable to guide the latching block to be latched into or be separated from a top of the RJ-type housing. The latching beam is operable to latch a bottom of the RJ-type housing.

Abstract: An RJ-type plug mating with an RJ-type housing includes a plug body. The plug body includes a latching block and a latching beam respectively protruding from two opposite surfaces thereof. The latching block includes a resisting end connecting to the first surface, a front end opposite to the resisting end, and a guiding surface connecting the resisting end and the front end. The guiding surface is operable to guide the latching block to be latched into or be separated from a top of the RJ-type housing. The latching beam is operable to latch a bottom of the RJ-type housing.

Abstract: A temperature protection circuit includes a detection circuit, a comparison circuit, a switching circuit, and a control circuit. When the temperature of an electronic device is below a preset temperature, a detecting voltage signal exceeds a reference temperature signal, and the comparison circuit outputs a control signal to open the switching circuit. The control circuit directs a power circuit to provide voltage to an operating circuit. When a temperature of the electronic device exceeds the preset temperature, the detecting voltage signal is below the reference temperature signal, and the comparison circuit outputs a control signal to close the switching circuit. The control circuit directs the power circuit to stop supplying voltages to the operating circuit.

Abstract: A data input device includes a heating circuit and a temperature control circuit. The heating circuit includes a heating apparatus, and a relay. When a temperature of the data input device is lower than a determined temperature, a first switch of the data input device is turned off, and a relay of the data input device is turned on, and the heating apparatus heats at least one surface of the data input device.

Abstract: A mobile phone includes a fingerprint input unit, a storage unit, a switch unit, and a control unit. The fingerprint input unit is used to read and record fingerprint information of a user, and output the fingerprint information. The storage unit stores a fingerprint mode. The switch unit is connected to a power on/off terminal of the mobile phone. The control unit is used to receive the fingerprint information and compare the received fingerprint information with the stored fingerprint mode. If the received fingerprint information is not consistent with the stored fingerprint mode and the mobile phone is at a power-off state, the control unit outputs a first control signal to control switch unit to keep the mobile phone being at the power-off state.

Abstract: An exemplary four-wire milliohmmeter includes a main body and two probe assemblies electrically connected with the main body. Each of the probe assemblies includes two plugs detachably inserted into the main body, a contact member, and two wires each electrically connecting one of the plugs to the contact member. The contact portion of each probe assembly has a needlelike free end for contacting an object.

Abstract: A basic input output system (BIOS) refresh apparatus includes a jumper device, which includes a first pin, a second pin connected to a power source through a resistor, a third pin, and a grounded fourth pin. A master BIOS socket includes a voltage pin connected to the power source and a signal pin connected to the first pin of the jumper device. A slave BIOS socket includes a voltage pin connected to the power source and a signal pin connected to the third pin of the jumper device. Other pins of the master BIOS socket are correspondingly connected to other pins of the slave BIOS socket. The signal pin of the master BIOS socket or the slave BIOS socket receives high level signal to make a corresponding BIOS chip mounted thereon work when the first or third pin is connected to the second pin of the jumper device.

Abstract: A mobile phone includes a fingerprint input unit, a storage unit, a switch unit, and a control unit. The fingerprint input unit is used to read and record fingerprint information of a user, and output the fingerprint information. The storage unit stores a fingerprint mode. The switch unit is connected to a power on/off terminal of the mobile phone. The control unit is used to receive the fingerprint information and compare the received fingerprint information with the stored fingerprint mode. If the received fingerprint information is not consistent with the stored fingerprint mode and the mobile phone is at a power-off state, the control unit outputs a first control signal to control switch unit to keep the mobile phone being at the power-off state.

Abstract: A method for adjusting display parameters of a monitor connected to a host computer. The host computer includes a video card. If the monitor cannot display data normally, the method selects a group of display parameters C2, which has not been used by the monitor, and is applicable to both the video card and the monitor, and sets the parameters in the selected group of display parameters C2 as the preferred display parameters of the monitor.

Abstract: A temperature protection circuit includes a detection circuit, a comparison circuit, a switching circuit, and a control circuit. When the temperature of an electronic device is below a preset temperature, a detecting voltage signal exceeds a reference temperature signal, and the comparison circuit outputs a control signal to open the switching circuit. The control circuit directs a power circuit to provide voltage to an operating circuit. When a temperature of the electronic device exceeds the preset temperature, the detecting voltage signal is below the reference temperature signal, and the comparison circuit outputs a control signal to close the switching circuit. The control circuit directs the power circuit to stop supplying voltages to the operating circuit.

Abstract: A computer system includes an enclosure and a motherboard. The enclosure includes two switches exposed through the enclosure. The motherboard is arranged in the enclosure and includes a reset pin to clear basic input output system (BIOS) settings of the motherboard. The reset pin is grounded by the two switches in series. The BIOS settings are cleared in response to the two switches being turned on.

Abstract: A monitor includes a display circuit used for controlling display of the monitor. A camera is disposed on a frame of the monitor, and includes a plurality of signal pins. A power circuit is used for providing power to the display circuit and the camera. A monitor video interface mates with a video interface of a motherboard of a host computer. The monitor video interface includes a plurality of video pins connected to the display circuit, and a plurality of idle pins connected to the plurality of signal pins of the camera. A power pin and a ground pin of the camera are correspondingly connected to a power pin and a ground pin of the power circuit.

Abstract: A keyboard includes a keyboard control circuit, a card reader unit, at least one universal serial bus (USB) interface, a switch, and a BLUETOOTH unit. The USB interface is capable of coupling to the card reader unit. The BLUETOOTH unit is selectively connected to the keyboard control circuit or the card reader unit via the switch.

Abstract: A mouse includes an input circuit including a power terminal and a ground terminal, and a heating circuit. The heating circuit includes a switch chip, an electric heater, a thermo-sensitive element, and a resistor. The switch chip includes two input voltage terminals connected to the power terminal, a power-switch output terminal connected to a first terminal of the electrical heater, and an enable input terminal. A second terminal of the electric heater is connected to the ground terminal. The resistor is connected to the thermo-sensitive element in series between the input voltage terminal and the ground terminal, with a cathode of the thermo-sensitive connected to the input voltage terminals, an anode of the thermo-sensitive connected to the resistive element, to support a dividing voltage for the enable input terminal of the switch chip.

Abstract: A data input device includes a heating circuit and a temperature control circuit. The heating circuit includes a heating apparatus, and a relay. When a temperature of the data input device is lower than a determined temperature, a first switch of the data input device is turned off, and a relay of the data input device is turned on, and the heating apparatus heats at least one surface of the data input device.

Abstract: A keyboard includes a main keypad, a numerical keypad, a switch, a keyboard control circuit, a calculator circuit, a display driver circuit, and a liquid crystal display screen. The keyboard control circuit is connected to the main keypad. The numerical keypad is connected to the keyboard control circuit and the calculator circuit selectively via the switch. The calculator circuit is further connected to the liquid crystal display screen via the display driver circuit. When the numerical keypad is connected to the calculator circuit via the switch, the numerical keypad is capable of processing a numerical calculation.

Abstract: A keyboard includes a keyboard control circuit, a card reader unit, at least one universal serial bus (USB) interface, a switch, and a BLUETOOTH unit. The USB interface is capable of coupling to the card reader unit. The BLUETOOTH unit is selectively connected to the keyboard control circuit or the card reader unit via the switch.

Abstract: A monitor includes a display circuit used for controlling display of the monitor. A camera is disposed on a frame of the monitor, and includes a plurality of signal pins. A power circuit is used for providing power to the display circuit and the camera. A monitor video interface mates with a video interface of a motherboard of a host computer. The monitor video interface includes a plurality of video pins connected to the display circuit, and a plurality of idle pins connected to the plurality of signal pins of the camera. A power pin and a ground pin of the camera are correspondingly connected to a power pin and a ground pin of the power circuit.

Abstract: A monitor for a host computer includes a display circuit, a peripheral equipment interface, a power circuit, and a monitor video interface. The display circuit is capable of controlling display of the monitor. The peripheral equipment interface is disposed on a frame of the monitor. The peripheral equipment interface includes a plurality of signal pins. The power circuit is capable of providing power to the display circuit and the peripheral equipment interface. The monitor video interface mates with a video interface of a motherboard of the host computer. The monitor video interface includes a plurality of video pins and idle pins. The video pins are connected to the display circuit. The idle pins are connected to the idle pins of the motherboard video interface. The idle pins of the motherboard video interface are connected to a chip of the motherboard.