Patent application number | Description | Published |
20090267541 | LED LAMP CONTROL CIRCUIT HAVING POWER SAVING FUNCTION AND POWER SAVING CONTROL METHOD THEREOF - A light emitting diode (LED) lamp control circuit having power saving function includes a control switch, a LED lamp, a battery, and a controller. The battery is connected to the LED lamp to supply power via the control switch. The controller is connected to the control switch and the battery to detect voltage values of the battery and control the control switch. The controller outputs different control signals to control the switching time of the control switch to drive the LED lamp to emit light at different intensity according to the voltage value of the battery. | 10-29-2009 |
20090267795 | CONTROL CIRCUIT FOR TRAFFIC LIGHT - A control circuit for traffic light includes a pulse control circuit, a control switch element, a control drive circuit, a power source, and an LED. The pulse control circuit includes a control chip is capable of outputting a low level signal and a pulse-width modulation (PWM) signal by turns. The duration of the low level signal is longer than that of the PWM signal. The control drive circuit for receiving the signals output from the control chip and controlling the control switch element. The LED is connected to the power source via the control switch element. The switch element is configured to control the power source to supply power to the LED when the signals output from the control chip are high, and does not supply power to the LED when the signals output from the control chip are low. | 10-29-2009 |
20110255843 | APPARATUS AND METHOD FOR TESTING SIGNAL CHANNELS OF DVR - An apparatus and method can test multiple signal channels of a digital video recorder (DVR). Image data are obtained from a storage device and converted the image data to a video signal. The DVR sends the video signal to an image distributor, and generates a selection command to a controller for controlling the image distributor to select a signal channel to be tested. After the video signal is received from the DVR, the image distributor sends the video signal to the selected signal channel. An ID number of the selected signal channel is displayed on a display device when the DVR does not receive the video signal from the selected video channel. | 10-20-2011 |
20110264957 | BOOT TEST APPARATUS AND METHOD OF COMPUTER SYSTEM - A boot test apparatus and method can repeatedly execute actions of power-on and power-off for a cold boot test of a computer to test whether the computer is operable. The boot test apparatus includes a microprocessor, a controller, and a power switch. The microprocessor generates a control signal according to a period voltage provided by an internal power supply. The control signal includes a pulse signal and a voltage signal. The controller controls a power switch to send the pulse signal to the computer through a power button of the computer, and controls the power switch to send the voltage signal to the computer through a power input port of the computer. The microprocessor further obtains test information from the computer when the computer executes a cold boot process according to the control signal, and displays the test information on an LED when the cold boot process is abnormal. | 10-27-2011 |
20110282496 | ELECTRONIC CONTROL DEVICE AND METHOD FOR OPERATING AN ELECTRIC ROLLER SHUTTER - An electronic control device and method for operating an electric roller shutter include establishing a wireless connection between the electronic control device and an electronic device if a preset login password is input. The electronic control device provides an operation interface to the electronic device, and receives a function instruction from the electronic device if a function key on the operation interface is pressed. The electric roller shutter is operated by the electronic control device according to the received function instruction. | 11-17-2011 |
20110284519 | REMOTE CONTROL DEVICE AND REMOTE CONTROL METHOD FOR WATER HEATER - A remote control device for a water heater includes a processing unit, a relay switch, a voltage measuring module, a current measuring module and a network connecting module. The relay switch is connected to the processing unit and configured to make the water heater connect or disconnect to an external power supply under the controlling of the processing unit. The voltage measuring module is connected to the processing unit and configured to measure a voltage value applied to the water heater, and transmit the voltage value to the processing unit. The current measuring module is connected to the processing unit and configured to measure a current value flowing through the water heater, and transmit the current value to the processing unit. The network connecting module is connected to the processing unit and configured to connect the processing unit to a remote computer. | 11-24-2011 |
20110293236 | DIGITAL VIDEO RECORDER AND MANAGING METHOD - An electronic device and a corresponding managing method include arranging a plurality of cameras into two camera groups, and setting a switch interval. A plurality of analog to digital converters (ADCs) in the electronic device uses first channels to acquire a first image and a second image from each camera from a first camera group. If the second image matches the corresponding first image of each camera in the first camera group and the switch interval elapses, the first channels of the ADCs are switched to second channels to acquire images from each camera in a second camera group. | 12-01-2011 |
20110294307 | PCB HAVING CONNECTOR SOCKET MATING WITH TERMINAL PLUG OF FPCB - A PCB includes a mounting surface, a face-down connector socket, a face-up connector socket, and a number of electronic components. The mounting surface defines two connector outlines arranged in a back-to-back fashion. The face-down connector socket and the face-down connector socket are selectively mounted to the mounting surface within the corresponding connector outlines to facilitate a connection with a terminal plug of an FPCB. The electronic components are mounted to the mounting surface, outside the connector outlines. | 12-01-2011 |
20110296071 | BLADE SERVER AND METHOD FOR ADDRESS ASSIGNMENT IN BLADE SERVER SYSTEM - A blade server and a method for auto-assigning a unique communication address for a blade server system. The blade server system includes a plurality of blade servers and a mainboard with a plurality of slots. The plurality of blade servers is received in the mainboard operating in the blade server system. The blade server includes at least one processor, a memory and a bus. The blade server connects the memory to the at least one processor by the bus and assigns a unique slot identification to the receiving slot. The blade server detects the unique slot identification of receiving slot of the mainboard. Then, the blade server assigns the unique communication address to the memory of the blade server according to the unique slot identification of the receiving slot. | 12-01-2011 |
20110296209 | CONTROL APPARATUS AND UNIVERSAL REMOTE CONTROL SYSTEM USING THE SAME - A control apparatus for controlling multiple electronic devices includes a receiving unit, a relay, and a processing unit. The receiving unit receives control signals. The relay is connected between the device to be controlled and a power supply to power on/off the device to be controlled. The processing unit is connected to the receiving unit and the relay. When the processing unit receives the control signals from the receiving unit, the processing unit compares the received control signals with a reference control signal and determines whether to drive the relay to control the device according to the result of the comparison. | 12-01-2011 |
20110305426 | DIGITAL VIDEO RECORDER - A digital video recorder includes a video input interface, a loop through video output interface, an A/D converter, and a multiplexer. The video input interface is electrically connected to the A/D converter. The A/D converter is configured for receiving video signals, and converting the video signals to digital signals. The loop through video output interface is connected to the video interface surface and the A/D converter through the multiplexer. The multiplexer includes a control terminal for receiving a control signal. The multiplexer is configured for connecting the video loop-through output surface to the video input surface or to the A/D converter according to the control signal. | 12-15-2011 |
20110316708 | MONITORING CIRCUIT FOR VEHICULAR LAMP - A monitoring circuit includes a first detecting unit, a second detecting unit, a comparing unit and an indicating unit. The first detecting unit is configured for detecting a temperature of a vehicular lamp and sending out a first signal. The second detecting unit is configured for detecting the surrounding temperature and sending out a second signal. The comparing unit is configured for comparing the first signal with the second signal, and controls the indicating unit to show the state of the vehicular lamp according to the compared result. When the first signal is higher than the second signal, the comparing unit controls the indicating unit to show that the vehicular lamp is unlit. When the first signal is equal to or lower than the second signal, the comparing unit controls the indicating unit to show that the vehicular lamp is lit. | 12-29-2011 |
20110319132 | MOBILE PHONE HAVING DETACHABLE SMART CARD MODULE - A mobile phone includes a mobile phone main module and a smart card module. The mobile phone main module includes a smart card reading circuit and a first universal serial bus (USB) port connected to the smart card reading circuit. The smart card module includes a smart card holder having a smart card and a USB plug connected to the smart card holder. The smart card reading circuit communicates with the smart card in response to the USB plug being inserted in the first USB port. The smart card module is also operable to be used for a computer in response to the USB plug being inserted in a USB port of the computer. | 12-29-2011 |
20120001484 | AUTOMOTIVE BATTERY OVER-DISCHARGE PREVENTION DEVICE - An automotive battery over-discharge prevention device includes a controlling module, a monitoring module connected to an automotive battery supplying power to an auxiliary device and a starting device, and a switch connecting the automotive battery to the auxiliary device. The monitoring module is configured for obtaining the voltage of the automotive battery, and converting the obtained voltage to a voltage signal. The controlling module is connected to the switch and the monitoring module. The controlling module stores a threshold voltage which is greater than an operation voltage at which the automotive battery is capable of operating the starting device. The controlling module is configured for comparing the voltage output from the monitoring module with the threshold voltage. If the voltage is smaller than the threshold voltage, the controlling module opens the switch. Otherwise, the controlling module closes the switch. | 01-05-2012 |
20120005385 | COMMUNICATION CIRCUIT OF INTER-INTEGRATED CIRCUIT DEVICE - A communication circuit of an Inter-Integrated Circuit (I2C) includes a master device, a switch circuit, first and second groups of slave devices. Each slave device includes a data signal pin and a clock signal pin, which are connected to the switch circuit. The master device includes a data signal pin, a clock signal pin, and a general purpose input output (GPIO) pin, which are connected to the switch circuit. The GPIO pin of the master device outputs a control signal to the switch circuit, to allow communication between the first group of slave devices and the master device or communication between the second group of slave devices and the master device. | 01-05-2012 |
20120007566 | CHARGING CIRCUIT - A charging circuit for charging a battery includes a processor, a switching circuit, a voltage converter, and a power voltage detecting circuit. A first terminal of the switching circuit is connected to a power source. A second terminal of the switching circuit is connected to a first output of the processor. A first terminal of the voltage converter is connected to a third terminal of the switching circuit. A second terminal of the voltage converter is connected to the battery. The power voltage detecting circuit is connected to the power source, and a first input and a second output of the processor. | 01-12-2012 |
20120014081 | VOLTAGE ADJUSTING CIRCUIT, METHOD, AND MOTHERBOARD INCLUDING SAME - A voltage adjusting circuit includes a voltage adjusting chip, a processor, first and second voltage converting circuits, and a control circuit. The voltage adjusting chip converts a first voltage to a second voltage. The processor receives the second voltage and a control signal. The second voltage converting circuit converts the second voltage to a third voltage. The first voltage converting circuit converts the third voltage to the second voltage according to the control signal from the processor for supplying the second voltage to the processor and the control circuit. The control circuit is connected between the first voltage converting circuit and the voltage adjusting chip. The control circuit deactivates the voltage adjusting chip when receiving the second voltage from the first voltage converting circuit. | 01-19-2012 |
20120019229 | VOLTAGE REGULATING CIRCUIT FOR PORTABLE ELECTRONIC DEVICE - A regulating circuit is used to regulate an output from a power supply to a load. The regulating circuit includes a regulator and a voltage dividing. The voltage dividing is connected between the power supply and the regulator. | 01-26-2012 |
20120026699 | CIRCUIT BOARD OF PORTABLE ELECTRONIC DEVICE - A circuit board includes a main body and a connecting member mounted on the main body. The main body defines a separating groove and is divided into two segments by the separating groove, such that the main body is broken along the separating groove to separate the two segments from each other when a force is applied thereto. When the main body is broken along the separating groove to separate the two segments from each other, the connecting member electronically connects the two segments to each other. | 02-02-2012 |
20120041707 | COLD BOOT TEST SYSTEM AND METHOD FOR ELECTRONIC DEVICES - A cold boot test system and method can control an electronic device to perform a cold boot process to test whether the electronic device is operable. The method sets time parameters for a test period of the cold boot process, drives a data communication interface of a computer to generate a period control signal according to the time parameters, and sends the period control signal to a controller via the data communication interface. The method further transfers the period control signal to the electronic device by controlling a power switch to switch on and switch off, controls the electronic device to execute the cold boot process to generate test information correspondingly. In addition, the method obtains the test information from the electronic device, and displays the test information on a display screen of the computer upon the condition that the cold boot process is abnormal. | 02-16-2012 |
20120057026 | MONITORING SYSTEM - A monitoring system includes a monitoring apparatus, a television, and a number of cameras. The monitoring apparatus includes an image analog-to-digital (A/D) converting unit to receive images from the cameras and convert the received analog images to digital images. A microcontroller receives the digital images from the image A/D converting unit, and compresses the received digital images and stores the compressed digital images in the storage unit. An image digital-to-analog (D/A) converting unit receives the digital images from the microcontroller and converts the received digital images to analog images. When the microcontroller receives the control signal from the television, the microcontroller outputs the received digital images to the image D/A converting unit, to convert the received digital images to analog images and output the analog images to the television. The microcontroller compresses the received digital images and stores the compressed digital images in a storage unit. | 03-08-2012 |
20120062273 | PDU TESTING APPARATUS - A power distribution unit (PDU) testing apparatus includes a main power plug, a number of branch power plugs, a main switch, a number of branch switches, and a number of loads. The main switch and the branch switches are single-pole double-throw switches. A first terminal of the main power plug is connected to the first throw of the main switch. The second throw of the main switch is idle. The pole of the main switch is connected to the second throws of the branch switches. The first throws of the branch switches are respectively connected to first terminals of the branch power plugs. Second terminals of the branch power plugs are connected a second terminal of the main power plug. The poles of the branch switches are respectively connected to first terminals of the loads. Second terminals of the loads are connected to the second terminal of the main power plug. | 03-15-2012 |
20120075476 | SURVEILLANCE SYSTEM - A surveillance system includes cameras, first modems, and a recorder. The camera captures images and outputs video signals. The first modems are connected to the cameras correspondingly and configured for modulation of the video signals from the cameras. The recorder is connected to the first modems. The recorder includes a second modem, an input portion, a processor, and a power supply. The second modem individually connects to the first modems. The input portion, the processor, and the power supply connect to the second modem. The second modern demodulates the modulated video signals from the first modems and sends the demodulated video signals to the processor. The second modern modulates control signals from the input portion and sends the modulated control signals to the first modems. The first moderns demodulate the modulated control signals and send the demodulated control signals to the cameras. | 03-29-2012 |
20120106928 | APPARATUS AND METHOD FOR TESTING SIGNAL CHANNELS OF DIGITAL VIDEO RECORDER - A channel test unit of a digital video recorder (DVR) includes a command generation module generating a selection signal to a controller. The controller outputs control signals to a multiplexer to select an output terminal of the multiplexer to switch to a signal channel. A signal generation module obtains a format voice data and converts to an analog voice signal and sends to the multiplexer. The multiplexer sends the analog voice signal to the selected signal channel after the signal channel is selected. A voice detection module defines an identification (ID) number for each of the signal channels in sequence and detects whether the DVR receives an analog voice signal, and determines whether all of the signal channels have been tested. A display module displays an ID number of the selected signal channel on a display device when the DVR does not receive the analog voice signal. | 05-03-2012 |
20130058053 | POWER CONVERSION CIRCUIT AND CIRCUIT BOARD - An exemplary power conversion circuit is to convert a voltage from one voltage level to another. The circuit includes an input port, an output port, a main body circuit, a first solder bridge, and a second solder bridge. The input port of the power conversion circuit is an output port of one power conversion circuit previous in sequence to the power conversion circuit, the output port of the power conversion circuit is an input port of one power conversion circuit next in sequence to the power conversion circuit. The first solder bridge is arranged between the input port of the power conversion circuit and the main body circuit of the power conversion circuit. The second solder bridge is arranged between the output port of the power conversion circuit and the main body circuit of the power conversion circuit. | 03-07-2013 |