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6558 results about "Start signal" patented technology

In telecommunication, a start signal is a signal that prepares a device to receive data or to perform a function. In asynchronous serial communication, start signals are used at the beginning of a character that prepares the receiving device for the reception of the code elements.

Robot cleaner, system employing the same and method for re-connecting to external recharging device

A robot cleaner capable of returning to an external recharging device. The robot cleaner includes a driving portion for driving a plurality of wheels, at least one camera installed on a body of the robot cleaner, the camera for photographing external surroundings, and a controller for photographing an image through a camera for recognition of a connection position where the external recharging device is connected with the robot cleaner and stores the photographed image, and controls the driving portion so that the robot cleaner can move from the external recharging device to a destination when an operation start signal is received in the robot cleaner connected to the external recharging device, and for tracing a path to the connection position of the external recharging device and the robot cleaner during a robot cleaner's return to the external recharging device while comparing a current image currently taken by the camera with a stored image of the connection position of the robot cleaner and the external recharging device. Returning of the robot cleaner is carried out when the robot cleaner, separated from the external recharging device, completes its job or needs a recharging, by using the previously stored image and an image currently taken by the camera. Accordingly, an error in the location process, mainly caused due to external interference signals, is decreased, and errors in tracing a path and connecting to the external recharging device can also be decreased.
Owner:SAMSUNG GWANGJU ELECTRONICS CO LTD

Display device and electronic device

An object of the invention is to provide a circuit technique which enables reduction in power consumption and high definition of a display device. A switch controlled by a start signal is provided to a gate electrode of a transistor, which is connected to a gate electrode of a bootstrap transistor. When the start signal is input, a potential is supplied to the gate electrode of the transistor through the switch, and the transistor is turned off. The transistor is turned off, so that leakage of a charge from the gate electrode of the bootstrap transistor can be prevented. Accordingly, time for storing a charge in the gate electrode of the bootstrap transistor can be shortened, and high-speed operation can be performed.
Owner:SEMICON ENERGY LAB CO LTD

Method and apparatus for reducing contamination of an electrical signal

The method of reducing contamination of electrical signals recorded in the presence of repeated interference contamination comprises obtaining an electrical signal recorded in the presence of a contaminating signal, and detecting a timing signal that occurs at a fixed time point during the electrical signal relative to the onset of the contaminating signal. The electrical signal is digitized, wherein the digitizing begins with the timing signal. A plurality of digitized electrical signals is analyzed, wherein the electrical signals are synchronized with respect to the timing signal, to obtain an estimated contaminating signal that is subtracted from the digitized electrical signal. This method can be used with electrophysiological signals, such as EEG, ECG, EMG and galvanic skin response, and for elimination of noise associated with concurrently used methods such as MRI. The method of noise reduction is applicable to recordings of other electrical signals, including audio recordings.
Owner:RGT UNIV OF CALIFORNIA

Energy saving outlet and an energy saving method by using an outlet

The present invention relates to an energy saving outlet, which comprises: a housing, having at least one first opening and a second opening thereon, for disposing the following elements at least one outlet, disposed in the housing and exposed the first opening, for providing an electrical equipment being plugged into; a sensor, disposed in the housing and exposed the second opening, for sensing a starting signal of the electrical equipment; a control unit, disposed in the housing and coupled to the sensor, for outputting a control signal when it receives the starting signal; a relay, one end being coupled to a power input terminal, and another end being coupled to the control unit, for being changed to an on or off state through the control signal; thereby the energy saving outlet can turn OFF its power when the electrical equipment has entered a stand-by state, so as to achieve the goal of energy saving. Furthermore, the present invention also provides an energy saving method by using an outlet.
Owner:POWERTECH INDAL

GOA circuit and LCD device for LCD

ActiveCN103928007ACorrect the pull-down potentialMake up for the problem of high pull-down potentialStatic indicating devicesSolid-state devicesHemt circuitsControl circuit
The embodiment of the invention discloses a GOA circuit for LCD. The GOA circuit comprises a plurality of cascaded GOA units. According to the nth-level GOA unit control, the nth-level horizontal scanning line of a display area is charged. The nth-level GOA unit comprises a pull-up circuit, a pull-down circuit, a first pull-down holding circuit, a second pull-down holding circuit, a bridge circuit, a pull-up control circuit, a downlink circuit and a bootstrap capacitor, wherein a third TFT in the pull-down holding circuit is connected with a seventh TFT in parallel; a tenth TFT in the second pull-down holding circuit is connected with a fourteenth TFT in parallel; the seventh TFT and the grid electrode of the fourteenth TFT are connected to each other and respectively connected with a start signal from the (n-1)-level GOA unit or the (n-1)-level horizontal scanning line. The embodiment of the invention further discloses an LCD device. By the implementation of the GOA circuit and the LCD device, an output delay of a grid signal can be shortened.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Liquid crystal display method and liquid crystal display device improving motion picture display grade

A source driver outputs a data signal and a reset (black) signal alternately to a source line. Four-hundred and eighty gate lines are divided into three groups each comprising 160 lines, and connected to gate drivers. A display control section outputs a discriminant signal, a scan start signal and a clock signal to the gate drivers, where the nth gate line is selected with the data signal outputted by the source driver, and where the (n+160)th gate line is selected with the reset signal outputted. Further, n is shifted sequentially. By writing the reset signal during the latter ⅓ of one frame like this, light leakage of pixels that are changed over from white display to black display is eliminated. Also, blurs of edge portions of a motion picture are reduced. Thus, display grade for motion pictures is enhanced with a minimum improvement.
Owner:SHARP KK

Method and apparatus for providing image in camera or remote-controller for camera

A method of providing an image, the method including receiving an image capture start signal from a remote controller of the camera, successively capturing images after the image capture start signal is received, receiving an image capture end signal from the remote controller, and selecting an image captured at a time which is a predetermined period of time prior to a time at which the image capture end signal is received.
Owner:SAMSUNG ELECTRONICS CO LTD

Synchronized personal video recorders

A method, apparatus and system for synchronizing the video output of personal video recorders in two or more locations. A broadcast program is received and recorded on a personal video recorder on a first personal video recorder. Thus, at least one program will be stored in memory in the first personal video recorder. A second personal video recorder having a common program residing in its memory is selected. A signal is then transmitted to or from the first personal video recorder to simultaneously initiate a start sequence in each of the first and second personal video recorders. The start signal may be transmitted over the Internet or by other communication means such as telephone lines.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV

Programmable compensated delay for DDR SDRAM interface using programmable delay loop for reference calibration

A programmable compensated delay for a double data rate (DDR) synchronous dynamic random access memory (SDRAM) interface is provided. A programmable compensated delay apparatus includes a reference delay calibration circuit for providing a measured number of delay elements in one cycle. A programmable delay register provides a desired delay value. A conversion logic is coupled to the reference delay calibration circuit and the programmable delay register for receiving both the measured number of delay elements in one cycle and the desired delay value. The conversion logic provides a number of required delay elements. A delay circuit is coupled to the conversion logic for receiving the number of required delay elements and providing the desired delay. A SDRAM control logic provides a refresh start signal to the reference delay calibration circuit for updating the delay circuit during each DRAM refresh. The DQS clock strobe on the DDR SDRAM is applied to the delay circuit and is delayed by the desired delay.
Owner:MARVELL ASIA PTE LTD

Low-leakage gate lines driving circuit for display device

A gates-line driving circuit of a display device includes a plurality of stages that are serially connected to each other, where each stage includes a plurality of transistors and a plurality of capacitors and receives a scanning start signal, a plurality of clock signals, and first and second gate-off voltages Voff1 and Voff2 of different magnitudes, where some of the transistors are turned off with the first gate-off voltage, and others of the transistors are turned off with the second gate-off voltage.
Owner:SAMSUNG DISPLAY CO LTD

User authentication system, user authentication apparatus, smart card, and user authentication method for ubiquitous authentication management

A user authorization system, a user authorization apparatus, a smart card, and a user authorization method for ubiquitous authorization management are disclosed. The user authorization system for ubiquitous authorization management according to the present disclosure comprises: a PKI (public key infrastructure) certificate issuing server for issuing a PKI (public key infrastructure) certificate matching a biometric signature of registered subscribers; a smart card for storing the biometric signature of the subscriber and the PKI (public key infrastructure) certificate from a user with the stored biometric signature of the subscriber, and generating a tunneling start signal in case the inputted biometric signature matches the stored biometric signature; a service server for providing various services for the authorized user on the basis of the PKI (public key infrastructure) certificate issued by the PKI (public key infrastructure) certificate issuing server; and a terminal, connected to the smart card through a wired or wireless communication method, for establishing a virtual private network(VPN) between the smart card and the service server in correspondence to the tunneling start signal received from the smart card, and transmitting an authorization information based on the PKI (public key infrastructure) certificate to the service server through the established VPN.
Owner:CHOI UNHO

Remote operation apparatus, operation target apparatus, method for controlling remote operation apparatus, method for controlling operation target apparatus, and remote operation system

A remote operation apparatus (300) includes: an operating-side first communication section (301) that is capable of transmitting a signal to an operation target apparatus (200); an operating-side second communication section (302) that is capable of transmitting / receiving the signal to / from the operation target apparatus (200); a connection start section (11) which transmits a connection start signal, which notifies a start of the transmission / reception of the signal via the operating-side second communication section (302), to the operation target apparatus (200) via the operating-side first communication section (301); and an operating-side communication control section (12) which transmits / receives the signal to / from the operation target apparatus (200) via the operating-side second communication section (302). With this arrangement, it is possible to easily specify a communication partner to / from which a signal is transmitted / received via the operating-side second communication section (302). Moreover, an amount of data transmitted by the operating-side first communication section (301) can be suppressed to a bare minimum. That is, it is possible to easily specify a communication partner and to suppress an amount of data transmitted by communication means for specifying the communication partner to a bare minimum.
Owner:SHARP KK

Stereo synchronizing signal generator for liquid crystal shutter glasses

A stereo synchronizing signal generator for liquid crystal shutter glasses is provided. The stereo synchronizing signal generator includes a signal generating unit to generate preliminary shuttering signals according to an image vertical synchronizing signals and a start signal. A signal delaying unit is provided to delay the preliminary shuttering signals according to a value, which can be changed by users. Then an output unit is provided to transmit the delayed shuttering signals to the liquid crystal shutter glasses. Due to that the signal generating unit generates a predetermined shuttering signal, such as right eye shuttering signal, at the rise edge of the start signal, the shuttering signals can always match up to the right image. Furthermore, the signal delaying unit can adjust the timing of the shuttering signal according to the value of the register, therefore the shuttering signals can always be synchronized with the image.
Owner:SILICON INTEGRATED SYSTEMS
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