Abstract: A connector assembly for connecting a peripheral device to a computer includes a male connector having a plurality of first connecting pins and a female connector having a plurality of second connecting pins. The plurality of first connecting pins is configured to connect to the peripheral device. The plurality of second connecting pins is configured to connect to the computer. The plurality of second connecting pins is defined on the first circuit board in a second row and a third row. The plurality of second connecting pins comprises a plurality of differential pairs, and each differential pair comprises two differential transmission lines. The two differential transmission lines of each of the plurality of differential pairs are defined on a single row of the second and third rows.

Abstract: A detection circuit of an electronic device, includes a jack circuit, a first switch, a second switch, and a detection end. The jack circuit includes a type detection pin and a connection detection pin. The first switch includes a first control end. The connection detection pin is connected to the first control end to control the first switch on or off according to whether the audio device is connected to the electronic device. The second switch is connected to ground via the first switch. The second switch includes a second control end. The type detection pin is connected to the second control end to control the second switch on or off according to the type of the audio device. The detection end is connected to the first switch via a first resistor, and is connected to the second switch via a second resistor. The detection end is adapted to generate different signals to indicate a connection status of the electronic device and the audio device.

Abstract: A power supply switch system for switching power supply to an electronic device, includes an adaptor, a charger module, a battery electrically connected to the charger module and a switch module. The adaptor outputs a voltage signal. The charger module receives the voltage signal and outputs control signals. The switch module receives the control signals and switches the adaptor and the battery to provide power supply to the electronic device. When the adaptor is powered on, the charger module controls the switch module to turn off a first connection between the battery and the electronic device; the charger module controls the switch module to turn on a second connection between the adaptor and the electronic device; and the adaptor provides the power supply to the electronic device.

Abstract: A signal transmitting circuit includes a HDMI signal transmitting unit adapted to output a HDMI signal, a VGA signal transmitting unit adapted to output a VGA signal, a VGA signal processing unit, and a transmitting control unit. The VGA signal processing unit is connected to the VGA signal transmitting unit. The VGA signal processing unit is adapted to receive the VGA signal from the VGA signal transmitting unit, and include a detection signal into the VGA signal to form a combination signal. A transmitting control unit is connected to the VGA signal processing unit and the HDMI signal transmitting unit. The transmitting control unit is adapted to receive the combination signal and the VGA signal, to distinguish the combination signal and the VGA signal, and to output the combination signal and the VGA signal to the appropriate receivers.

Abstract: A power supply circuit for protecting a battery from current leakage when the battery is not in use includes a control signal input circuit and a switch circuit. The control signal input circuit receives a first control signal from a chip and output a second control signal. The switch circuit receives the second control signal and turns on or off an electronic connection between the battery and the chip. Wherein when the battery is not in use and not being charged by the adaptor, there is a possibility of current leakage from the battery. In such case, the switch circuit turns off the electronic connection between the battery and the chip, and the battery does not provide power to the chip.

Abstract: A docking station includes a multiplexer. The multiplexer includes a first input end, a second input end, and an encode system. The encode system is connected to the second input end, and configured to generate an encoding according to a connection status of the second input end. The encode system is configured to generate a first encoding, when a first peripheral device is connected to the second input end, to switch the multiplexer to a first state, in which the second input end is on and the first input end is off. The encode system is further configured to generate a second encoding, when the first peripheral device is not connected to the second input end, to switch the multiplexer to a second state, in which the second input end is off and the first input end is on.

Abstract: A power supply system, for discharging a resume and reset (RSMRST) signal during the RSMRST signal pull down, includes a voltage regulating circuit, a delay circuit, a switch circuit, and a discharge circuit. The voltage regulating circuit receives a first voltage signal and converts the first voltage signal to a second voltage signal. The delay circuit is charged by the second voltage signal and outputs the second voltage signal once fully charged. The switch circuit receives the second voltage signal and then outputs a RSMRST signal. The discharge circuit discharges the delay circuit. The delay circuit is charged during a first state and discharged during a second state.

Abstract: A resume and reset (RSMRST) signal output circuit, for outputting a low level voltage RSMRST signal, includes a first switch circuit, a delay circuit, and a second switch circuit. The first switch circuit receives a first voltage signal and converts the first voltage signal to a second voltage signal. The delay circuit is charged by the second voltage signal and outputs the second voltage signal it is when fully charged. The second switch circuit receives the second voltage signal and outputs the low level voltage RSMRST signal. The delay circuit is charged during a first state and discharged during a second state.

Abstract: A power supply switch system for switching power supply to an electronic device, includes an adaptor, a charger module, a battery electrically connected to the charger module and a switch module. The adaptor outputs a voltage signal. The charger module receives the voltage signal and outputs control signals. The switch module receives the control signals and switches the adaptor and the battery to provide power supply to the electronic device. When the adaptor is powered on, the charger module controls the switch module to turn off a first connection between the battery and the electronic device; the charger module controls the switch module to turn on a second connection between the adaptor and the electronic device; and the adaptor provides the power supply to the electronic device.

Abstract: A signal transmitting circuit includes a HDMI signal transmitting unit adapted to output a HDMI signal, a VGA signal transmitting unit adapted to output a VGA signal, a VGA signal processing unit, and a transmitting control unit. The VGA signal processing unit is connected to the VGA signal transmitting unit. The VGA signal processing unit is adapted to receive the VGA signal from the VGA signal transmitting unit, and include a detection signal into the VGA signal to form a combination signal. A transmitting control unit is connected to the VGA signal processing unit and the HDMI signal transmitting unit. The transmitting control unit is adapted to receive the combination signal and the VGA signal, to distinguish the combination signal and the VGA signal, and to output the combination signal and the VGA signal to the appropriate receivers.

Abstract: A resume and reset (RSMRST) signal output circuit, for outputting a low level voltage RSMRST signal, includes a first switch circuit, a delay circuit, and a second switch circuit. The first switch circuit receives a first voltage signal and converts the first voltage signal to a second voltage signal. The delay circuit is charged by the second voltage signal and outputs the second voltage signal it is when fully charged. The second switch circuit receives the second voltage signal and outputs the low level voltage RSMRST signal. The delay circuit is charged during a first state and discharged during a second state.

Abstract: A detection circuit of an electronic device, includes a jack circuit, a first switch, a second switch, and a detection end. The jack circuit includes a type detection pin and a connection detection pin. The first switch includes a first control end. The connection detection pin is connected to the first control end to control the first switch on or off according to whether the audio device is connected to the electronic device. The second switch is connected to ground via the first switch. The second switch includes a second control end. The type detection pin is connected to the second control end to control the second switch on or off according to the type of the audio device. The detection end is connected to the first switch via a first resistor, and is connected to the second switch via a second resistor. The detection end is adapted to generate different signals to indicate a connection status of the electronic device and the audio device.

Abstract: A power supply system, for discharging a resume and reset (RSMRST) signal during the RSMRST signal pull down, includes a voltage regulating circuit, a delay circuit, a switch circuit, and a discharge circuit. The voltage regulating circuit receives a first voltage signal and converts the first voltage signal to a second voltage signal. The delay circuit is charged by the second voltage signal and outputs the second voltage signal once fully charged. The switch circuit receives the second voltage signal and then outputs a RSMRST signal. The discharge circuit discharges the delay circuit. The delay circuit is charged during a first state and discharged during a second state.

Abstract: A power supply circuit for protecting a battery from current leakage when the battery is not in use includes a control signal input circuit and a switch circuit. The control signal input circuit receives a first control signal from a chip and output a second control signal. The switch circuit receives the second control signal and turns on or off an electronic connection between the battery and the chip. Wherein when the battery is not in use and not being charged by the adaptor, there is a possibility of current leakage from the battery. In such case, the switch circuit turns off the electronic connection between the battery and the chip, and the battery does not provide power to the chip.

Abstract: A connector assembly for connecting a peripheral device to a computer includes a male connector having a plurality of first connecting pins and a female connector having a plurality of second connecting pins. The plurality of first connecting pins is configured to connect to the peripheral device. The plurality of second connecting pins is configured to connect to the computer. The plurality of second connecting pins is defined on the first circuit board in a second row and a third row. The plurality of second connecting pins comprises a plurality of differential pairs, and each differential pair comprises two differential transmission lines. The two differential transmission lines of each of the plurality of differential pairs are defined on a single row of the second and third rows.

Abstract: A connection detection circuit includes a first detection circuit and a second detection circuit. The first detection circuit includes a first comparator and a first detection pin connected to the first comparator. The first comparator is adapted to compare a first voltage level on the first detection pin with a first reference voltage. The second detection circuit includes a second detection pin. The second detection pin is adapted to connect to the first detection pin to vary the first voltage level on the first detection pin to switch an first transistor output when the connection of the first detection circuit and the second detection circuit is achieved.

Abstract: A docking station includes a multiplexer. The multiplexer includes a first input end, a second input end, and an encode system. The encode system is connected to the second input end, and configured to generate an encoding according to a connection status of the second input end. The encode system is configured to generate a first encoding, when a first peripheral device is connected to the second input end, to switch the multiplexer to a first state, in which the second input end is on and the first input end is off. The encode system is further configured to generate a second encoding, when the first peripheral device is not connected to the second input end, to switch the multiplexer to a second state, in which the second input end is off and the first input end is on.

Abstract: A computer system includes a host computer and a monitor connected to the host computer via an integrated digital video interface (DVI-I) connection, and a signal switching circuit. The DVI-I supports both digital/analog signals and generating a hot plug detection signal to identify an/a analog or digital display mode of the monitor. The signal switching circuit is capable of connecting the DVI-I to analog system management bus (SMBUS) if the monitor is in the analog display mode, and connecting the DVI-I to digital SMBUS if the monitor is in the digital display mode.