Patent application number | Description | Published |
20090259859 | POWER SUPPLY SYSTEM FOR MOTHERBOARD - An exemplary power supply system and method for a motherboard includes a power circuit providing power for a south bridge, and a controller having first and second transistors. An input terminal of the power circuit is connected to a power supply. An output terminal of the power circuit is connected to a reset pin of the south bridge. A first terminal of the first transistor is configured for receiving a control signal from the south bridge. A second terminal of the first transistor is connected to a first terminal of the second transistor. A second terminal of the second transistor is connected to the reset pin of the south bridge. Each of the first and second transistors has a third terminal grounded. | 10-15-2009 |
20090300375 | POWER SUPPLY CONTROL CIRCUIT - An exemplary power supply control circuit includes a first electric switch, a second electric switch, a third electric switch, a power supply, and an output terminal. The first electric switch has a first terminal connected to an SIO chip to receive a control signal. When the control signal is at a high level, the first electric switch is turned on, the second electric switch is turned off, the third electric switch is turned off, and the output terminal outputs no power supply. When the control signal is at a low level, the first electric switch is turned off, the second electric switch is turned on, the third electric switch is turned on, and the output terminal outputs the power supply. | 12-03-2009 |
20100007400 | POWER SUPPLY CIRCUIT FOR PULSE WIDTH MODULATION CONTROLLER - A power supply circuit for a pulse width modulation controller includes a first resistor and an electric switch having first, second, and third terminals. The first terminal is capable of receiving a control signal of a computer. The second terminal is connected to a stand-by power supply of the computer. The third terminal is connected to the pulse width modulation controller via the first resistor. | 01-14-2010 |
20100100753 | POWER CONTROL CIRCUIT - A power control circuit for supplying power for a computer component of a computer includes first to sixth switches. In response to the computer changing to a normal work state, a power state signal changes from low level to high level and a motherboard state signal is at high level, the fourth switch is turned on, the fifth switch is turned off, and the sixth switch is turned on, and power of the computer component is stably supplied by a system power supply. The motherboard state signal and the power state signal are at low level in response to the computer changing to a sleep state, the second switch is turned off, the first and third switches are turned on, and power of the computer component is stably supplied by a standby power supply. | 04-22-2010 |
20100223485 | COMPUTER SYSTEM AND OPERATING METHOD THEREOF - A computer system includes a power supply, a timing control circuit including a delay module, and a south bridge chip. The power supply outputs necessary voltages to the computer system and a first power good signal. The necessary voltages include a system voltage. The timing control circuit generates a second power good signal to the south bridge chip according to the first power good signal. The first power good signal is delayed a first time to be effective after voltages of the system voltage rise to a rated value. The second power good signal is generated after the first power good signal is delayed a second time by the delay module. The first power good signal indicates that the necessary voltages are ready in response to being effective. The second power good signal indicates that necessary input powers of the south bridge chip are ready in response to being effective. | 09-02-2010 |
20120303373 | ELECTRONIC APPARATUS AND METHOD FOR CONTROLLING THE ELECTRONIC APPARATUS USING VOICE - An electronic apparatus includes a microphone, a processor, a motherboard, and a voice recognition microchip. The voice recognition microchip compares a voice command with a pre-stored voice command. If the voice command is identical with the pre-stored voice command, the processor outputs a control signal to the motherboard. The motherboard controls the electronic apparatus to perform an action corresponding to the control signal. | 11-29-2012 |
20120305299 | PRINTED CIRCUIT BOARD WITH REFERENCE LAYER HOLE - An exemplary PCB defines a circular first via and includes a first signal layer, a second signal layer, a first reference layer between the first and second signal layer, and a signal transmission line having a first portion on the first signal layer and a second portion on the second signal layer. The first signal layer has a circular first weld pad coaxial with the first via and electrically connected to the first portion, the second layer has a circular second weld pad coaxial with the first via and electrically connected to the second portion. The first weld pad is electrically connected to the second weld pad through the first via, the reference layer defines a first through hole coaxial with the first via, the radius of the first via is R1, the radius of the first through hole is R2, R2=R1+d1, 1.5 mil≦d1≦4 mil. | 12-06-2012 |
20120306456 | CHARGING CIRCUIT - A charging circuit employed in an electronic apparatus is operable to charge a portable electronic device. The charging circuit includes a charging control microchip including two control terminals, a southbridge microchip, a logic control circuit, and a basic input/output system (BIOS). The southbridge microchip and the BIOS are both electronically connected to the logic control circuit to control the logic control circuit to set or reset voltage of the two control terminals, then the charging control microchip is switched to a charging mode or a data transmission mode according to the voltage of the two control terminals. | 12-06-2012 |
20120326622 | COMPUTING DEVICE WITH COLOR ORGAN - A computing device includes an audio signal processing unit, a light module, and driving circuits. The audio signal processing unit decompresses digital audio data into an audio signal. The driving circuit drives the light module to light according to the audio signal, in such a manner that the intensity/brightness of the light module corresponds to amplitude of the audio signal in real-time. | 12-27-2012 |
20120326761 | PROCESSOR FREQUENCY ADJUSTMENT CIRCUIT - A processor frequency adjustment circuit for adjusting a frequency of a processor includes a voltage converting module, a first reference voltage generating module, a clock chip, a voltage comparing module. The voltage converting module converts a pulse voltage into a constant voltage. The first reference voltage generating module generates a first reference voltage. The voltage comparing module is connected with the voltage converting module, the first reference voltage generating module, and the clock chip to compare the constant voltage with the first reference voltage, and generates a first voltage level signal to a first terminal of the clock chip; the clock chip adjusts the frequency of the processor in response to obtaining the first voltage level signal. | 12-27-2012 |
20130044900 | AUDIO PLAYING DEVICE FOR ELECTRONIC DEVICES - An audio playing device for an electronic device includes an amplifier circuit, a voltage divider circuit, and a speaker. A south bridge of the electronic device is electrically connected to the amplifier circuit via the voltage divider circuit, and a sound card of the electronic device is electrically connected to the amplifier circuit. The south bridge generates electronic signals corresponding to startup prompt tones of the electronic device, and the electronic signals corresponding to startup prompt tones of the electronic device are transmitted to the speaker via the voltage divider circuit and the amplifier circuit to play. The sound card processes audio files, and electronic signals corresponding to the processed audio files are transmitted to the speaker via the amplifier circuit to play. | 02-21-2013 |
20130047018 | POWER SUPPLY CONTROL CIRCUIT - A power supply control circuit for an electronic device includes an input/output (I/O) microchip, a southbridge microchip and a power management unit. The control circuit is electrically connected to the I/O microchip and the southbridge microchip to output a driving voltage to the I/O microchip and the southbridge microchip. The power management unit includes a power management microchip electrically connected to the control circuit, the I/O microchip and the southbridge microchip. The power management microchip outputs a power on/off control signal to the southbridge microchip to power on/off the electronic device, and controls the control circuit to provide a driving voltage to the I/O microchip and the southbridge microchip when the electronic device is powered on and controls the control circuit to stop providing the driving voltage to the I/O microchip and the southbridge microchip when the electronic device is powered off. | 02-21-2013 |
20130076794 | AUTOMATIC ROTATING DISPLAY SYSTEM BASED ON WINDOWS OPERATING SYSTEM - An automatic rotating display system is adapted to an electronic device based on a windows operating system. The electronic device includes a display for displaying one or more images. The automatic rotating display system includes a gravity sensor, a processor, a keyboard controller and a display card. The gravity sensor is configured for sensing or detecting different positional variations of the electronic device, and generating corresponding different sensing signals, according to the direction and magnitude changes of the electronic device. The processor electrically connects with the gravity sensor for receiving and processing the sensing signals. The keyboard controller connects with the processor for receiving the directional control signals and translating the directional control signals into directional control instructions. The display card connects with the keyboard controller for receiving the directional control instructions and driving the image shown on the display to rotate. | 03-28-2013 |
20130103963 | POWER SUPPLY CIRCUIT EMPLOYED IN COMPUTER FOR PERFORMING DIFFERENT STANDBY MODES - A power supply circuit includes a basic input output system (BIOS), a super input output (SIO), a bivibrator, a logical selector, and a voltage converter. The basic input output system (BIOS) is configured for storing different operation modes of a computer. The super input output (SIO) is configured for generating standby mode signals according to the different operation modes. The bivibrator is configured for generating a reference signal when upon receiving a clock signal from the computer when the computer is turned on. The logical selector is configured for generating a standby control signal in response to the reference signal and one of the standby mode signals. The voltage converter is configured for transforming the first standby voltage into a second standby voltage to drive the SIO. The SIO receives the second standby voltage before the clock signal is delayed and provided to the SIO to start the computer. | 04-25-2013 |
20130151838 | CIRCUIT FOR REMOVING PASSWORDS - A circuit for removing passwords from a computer includes a jumper and a power circuit. The jumper includes a base and a jumper block. The base includes first to fourth pins. The first pin is idle. The third pin is grounded. The second pin is coupled to a basis input output system (BIOS) chip of the computer, the fourth pin is coupled to a complementary metal-oxide-semiconductor (CMOS) chip of the computer. The power circuit is coupled to the second and the fourth pins, to supply power for the BIOS chip and the CMOS chip. The jumper block is plugged between the second and the third pins to remove the password in the BIOS chip, and plugged between the third and the fourth pins to remove the password in the CMOS chip. | 06-13-2013 |
Patent application number | Description | Published |
20090003806 | Method and circuit for controlling rotation speed of computer fan - An exemplary method for controlling rotation speed of a computer fan includes: judging the type of a fan by comparing two rotation speeds detected before and after changing a duty cycle of a PWM signal respectively; controlling the computer fan as a 4-pin fan the PWM signals if the rotation speeds are different; and controlling the computer fan as a 3-pin fan via voltage signals converted from the PWM signals if the rotation speeds are equal. And an exemplary circuit for controlling rotation speed of a computer fan is capable of controlling rotation speed of the 4-pin fan via PWM signals, and controlling rotation peed of the 3-pin fan via voltage signals converted from PWM signals. | 01-01-2009 |
20090158059 | VOLTAGE REGULATING CIRCUIT FOR MOTHERBOARD - An exemplary voltage regulating circuit for a motherboard includes a selecting switch and a first switch module, the selecting switch comprising a first input terminal arranged to receive a standby power provided by a power supply, a first control terminal arranged to receive a state signal from the motherboard via a first switch module controlled by a power good signal generated by the power supply, and an output terminal, wherein, when the motherboard is turned off, the state signal is at a high level and the first switch module is turned on by the power good signal for turning off the selecting switch to stop outputting the standby power. | 06-18-2009 |
20090162039 | CIRCUIT FOR CONTROLLING ROTATION SPEED OF COMPUTER FAN - A circuit for controlling rotation speed of a computer fan includes a fan connector providing for controlling the rotation speed of the computer fan, a rotation speed detector providing for detecting the rotation speed of the computer fan, a BIOS chip connected to the fan connector via the rotation speed detector and provided for receiving, and comparing rotation speed signals from the rotation speed detector, a super I/O chip connected to the BIOS chip and provided for outputting either a PWM signal or another PWM signal to be converted to a voltage signal to control rotation speed of the computer fan according to the result of the comparison, a integrated circuit connected to the super I/O chip and the fan connector and configured for converting the another PWM signal to an analog voltage signal. | 06-25-2009 |
20090164828 | NETWORK OVERCLOCK CONTROL CIRCUIT - A network overclock control circuit for a computer includes an RC circuit, first and second comparator circuits, and first and second switch circuits. A signal pin of a network indicating lamp is connected to input terminals of the first and second comparator circuits via the RC circuit. Output terminals of the first and second comparator circuits are respectively connected to first and second clock pins of a clock chip via the first and second switch circuits. When network has little traffic, the first and second comparator circuits control the first and second switch circuits to output low level signals. When network has medium to high traffic, the first and second comparator circuits control the first and second switch circuits to output high and low level signals. When network is overloaded, the first and second comparator circuits control the first and second switch circuits to output high level signals. | 06-25-2009 |
20090175602 | CIRCUIT FOR CONTROLLING ROTATION SPEED OF COMPUTER FAN - A circuit for controlling rotation speed of a computer fan includes a fan header for connecting to a 4-pin fan or a 3-pin fan, a jumper device, an amplifier, and a controller. The jumper device has a first pin for receiving a controlling signal, and connected to a first power source, a second pin connected to the fan header, and a third pin connected to the first power source. The amplifier has an input terminal connected to the third pin of the jumper device via an integrator. The controller has a first terminal connected to an output terminal of the amplifier, a second terminal connected to a second power source, and a third terminal connected to the fan header and connected to a positive input terminal of the amplifier via a resistor. The first pin of the jumper device is selectively connected to the second or third pin. | 07-09-2009 |
20090208192 | DEVICE FOR CONTROLLING ROTATION SPEED OF COMPUTER FAN - An exemplary device for controlling rotation speed of a computer fan includes an identifying device and a control circuit. The identifying device is configured for identifying the type of the computer fan. The control circuit configured for controlling rotation speed of the computer fan includes an electric switch, an integrated circuit, a first output terminal, and a second output terminal. The electric switch has a first terminal coupled to the identifying device to receive an identifying signal, a second terminal coupled to a super I/O chip to receive a PWM signal. The integrated circuit is configured to convert the PWM signal to an analog voltage signal. The first output terminal is configured to output the PWM signal to a PWM control pin of a fan header. The second output terminal is configured to output the analog voltage signal to a power pin of the fan header. | 08-20-2009 |
Patent application number | Description | Published |
20130173833 | SWITCH APPARATUS SWITCHING BETWEEN BASIC INPUT OUTPUT SYSTEM CHIP AND DIAGNOSTIC CARD - A switch apparatus which can switch between two different booting chips includes a first connector, a platform controller hub (PCH) chip, a first basic input output system (BIOS) chip, a switch circuit, and a diagnostic card. The diagnostic card includes a second connector operable to be plugged into the first connector, and a second BIOS chip. When the switch circuit receives a high level control signal from the second BIOS chip, the switch circuit outputs a high level switch signal to first and second trapping pins of the PCH chip, to select the second BIOS chip to bootstrap the motherboard. When the switch circuit does not receive a high level control signal, the switch circuit outputs a low level signal to the first and second trapping pins of the PCH chip, to select the first BIOS chip to bootstrap the motherboard. | 07-04-2013 |
20130262847 | SWITCHING CIRCUIT FOR BASIC INPUT OUTPUT SYSTEM - A switching circuit for a basic input/output system (BIOS) chip includes a front panel connector, a first connector, a second connector, and a BIOS chip. The first connector is selectively plugged into the front panel connector, a first pin of the first connector is coupled to a first pin of the second connector, and is grounded through a first resistor. The BIOS chip coupled to a first pin of the front panel connector, and coupled to a first power terminal through a second resistor. The BIOS chip loads different system configurations based on whether the first connector is plugged into the front panel connector or not plugged into the front panel connector. | 10-03-2013 |
20130283028 | ADAPTER IDENTIFICATION SYSTEM AND METHOD FOR COMPUTER - An adapter identification system for a computer includes an embedded controller (EC) configured to simulate a 1-Wire protocol controller, an adapter including a control unit and a storage unit, and a basic input output system (BIOS) chip. The adapter is assigned a first identity (ID), which is stored in the storage unit, and the control unit is used to obtain the first ID. The BIOS chip is configured to obtain the first ID through the EC, and determine whether the first ID matches one of a number of second IDs stored in the BIOS chip. The BIOS chip boots the operation system of the computer in response to the first ID matching one of the second IDs, and the BIOS chip outputs a rejection notice to a display of the computer in response to the first ID not matching one of the second IDs. | 10-24-2013 |