359results about How to "Drive precision" patented technology

A display device includes a scan driver transmitting a plurality of scan signals to a plurality of scan lines, a data driver transmitting a plurality of data signals to a plurality of data lines, a display unit including a plurality of pixels connected to corresponding scan lines and corresponding data lines, and respectively receiving the corresponding data signal when the plurality of pixels are selected with the corresponding scan signal, and a timing controller controlling the scan driver and the data driver, dividing one frame period into a first viewpoint image display period, a second viewpoint image display period, and a black image display period, and generating image data signals corresponding to the first viewpoint image display period, the second viewpoint image display period, and the black image display period, and supplying the respective image data signals to the data driver, wherein the black image display period is shorter than the first viewpoint image display period and the second viewpoint image display period, and the image data signal corresponding to the black image display period is a black image data signal controlling the plurality of pixels not to emit light.

A process for assisting the function of a heart disposed within a body, comprising the steps of supporting the heart in providing circulation of blood for perfusion of an organ in the body, remodeling the heart to render the heart in an improved state, and stabilizing the heart in the improved state. The process is preferably performed with an apparatus comprising a cup-shaped shell having an exterior surface and an interior surface; a liner having an outer surface, an upper edge joined to said interior surface of said cup-shaped shell, and a lower edge joined of said interior surface of said cup-shaped shell, thereby forming a cavity between said outer surface thereof and said interior surface of said shell; a drive fluid cyclically interposed within said cavity; and at least one sensor measuring at least one macroscopic parameter indicative of said function of said heart. Further embodiments of the process and apparatus include means and use thereof for delivering a therapeutic agent to the heart.

The invention provides a segmentation model training method to solve the problems of low training efficiency, long time consumption, and high cost of a segmentation model in the prior art. The method includes: performing free area segmentation on a training sample image by employing an unsupervised free area segmentation method to obtain a free area segmentation image of the training sample image; performing iterative training on a preset convolution neural network by employing a self-paced learning method and by regarding the training sample image as an input image and regarding the free area segmentation image as a mark image to obtain an initial segmentation model; and training the initial segmentation model by regarding a preset standard sample image as the input image and regarding a road area image marked on the standard sample image in advance as the mark image to obtain a target segmentation model. By employing the method, the segmentation accuracy of the segmentation model obtained by training is ensured, the training speed and efficiency can be increased, and road segmentation is performed based on the target segmentation model so that the result of road segmentation is more accurate.

An endoscope with an objective lens drive mechanism for an objective lens system which is mounted within a rigid tip end section of an insertion instrument of the endoscope. The objective lens system includes a fixed lens which is mounted on a fixed lens frame, and at least one movable lens which is mounted on a movable lens frame. The movable lens frame is slidable along guide surfaces which are provided on the inner periphery of the fixed lens frame in the direction of optical axis of the lens system. A nut portion, which is projected from the movable lens frame substantially in a direction perpendicular to the optical axis, is held in threaded engagement with a screw rod member which is rotatably supported on a bearing member which is in turn supported on the fixed lens frame. The screw rod member is rotatable but blocked against movements in the axial direction. Further, the screw rod is connected with a flexible transmission shaft which is sheathed in a sleeve to transmit rotation to the screw rod. A control cable of the objective lens drive is constituted by the flexible transmission shaft and the sleeve.

The present invention relates to an automatic driving system for a vehicle and, more specifically, to an automatic driving system for a vehicle which controls a vehicle to be automatically driven to a destination in consideration of traffic signals and peripheral vehicles or objects, when a driver sets the destination in a navigation device. To this end, the system according to the present invention comprises: a mapping module for setting a driving lane by receiving route information set in a navigation device installed in a vehicle and then, converting a distance, direction, and rotation angle to actual measurement data; and a driving control module for having a vehicle be driven along the driving lane set by the mapping module.

To provide an electronic circuit, an element substrate, an electronic device, an electro-optical device, and an electronic apparatus, which make it possible to perform a precise controlling operation even if manufacturing variations occur, a circuit formation area is an annular formation area of a pixel of a display panel, and does not include a substantially central portion of the pixel. A light emission area is provided in the substantially central portion. One drive circuit is formed in the circuit formation area, and four organic elements OLED are formed in the light emission area. The drive circuit and the organic elements OLED are connected parallel to each other with wirings.

The invention discloses a dual-motor redundant steer-by-wire device and a control method thereof. The device comprises an electric control unit (ECU), a torque sensor, a motor, a steering gear rack, asteering gear pinion and a steer-by-wire mechanism. The electric control unit (ECU) of the device judges the steering intention of a driver by collecting steering wheel turning angle signals; when the steer-by-wire mechanism works normally, an electromagnetic clutch is disengaged, the motor plays a part in providing road feel, and a roller screw steering mechanism completes a steering instruction; when the steer-by-wire mechanism breaks down, the electromagnetic clutch is engaged, the motor rotates reversely, and the steering gear pinion and the steering gear rack complete the steering instruction and play a part in providing steering assistance. The device is simple in structure, high in precision and reliable in work, by means of the roller screw steering mechanism, steering displacement can be precisely controlled, and meanwhile, the device can automatically return to a mechanical steering state when the steer-by-wire mechanism fails to complete the steering instruction.

The present disclosure relates to an optical transceiver for use in optical fiber communications and / or telecommunications systems and, more specifically, a low power consumption, long range pluggable transceiver. The transceiver generally comprises a photodiode with a transimpedance amplifier (PIN-TIA); an electro-absorption modulated laser (EML); an optical detector; and a directly modulated laser (DML) driving module connected between the PIN-TIA and EML laser configured to drive the EML laser. A low power-consumption DML driving module is utilized to drive the EML laser, so as to further reduce power consumption. An impedance matching circuit can be applied to modulate an electro-absorption (EA) modulator of the EML laser with maximum efficiency.

A drive waveform signal which is level controlled by discontinuous levels including a minimum level corresponding to luminance brightness gradation data which is not 0, at least one non-minimum level corresponding to larger luminance brightness gradation data, and an intermediate level between the minimum and non-minimum level. The signal, which is employed to drive an image display unit, is given pulse width control with discontinuous pulse width, and has a portion, controlled with the minimum level, in its trailing edge, and a portion, controlled with the intermediate level just before the former portion, when it has the portion controlled by the non-minimum level.

A gate driver mounted on a TCP is mounted on a print substrate. The input / output terminal, input terminal, and power terminal of the gate driver at one end of a group of gate drivers are connected to a controller by this mount, and a clock signal, select signal, and power voltage are transferred in a direction of the gate drivers. Meanwhile, the input terminal of a gate driver at the other end of the group of gate drivers is connected to the controller, and a start pulse signal is transferred in a direction of the gate drivers. As a result, it is possible to provide a display driving device in which a start pulse signal is fed in at a correct timing, a manufacturing method thereof, and a liquid crystal module employing such a display driving device.

The invention discloses a bus behind-schedule recovering method based on arrival time predication with a time window. The method provides a behind-schedule recovering concept on the basis of arrival time predication of a bus. The specific method comprises the following steps of: firstly, predicating arrival time of the bus by using Kalman filtering; secondly, taking a predication result as the basis and giving out a dispatching time judging time window; and finally, providing the behind-schedule recovering concept and introducing a time deviation coefficient; taking a corresponding speed of a critical time deviation coefficient and a maximum allowable speed as restrictions to establish a behind-schedule recovering model, so as to provide a referred speed of road segment driving to a bus driver and a dispatching center to avoid possible behind-schedule or recover normal operation as soon as possible.

An output circuit for driving a signal line in, for example, a liquid crystal display panel has an impedance conversion element that generates an output signal from an input signal and a feedback signal. During output periods, a first switch conducts the output signal to the output terminal of the output circuit and a second switch conducts the output signal from the output terminal back to the impedance element as the feedback signal. During non-output periods, the first and second switches are switched off and a third switch conducts the output signal back to the impedance element as the feedback signal from a point between the impedance conversion element and the first switch. This dual feedback scheme enables the signal line to be precharged during non-output periods while avoiding loss of driving speed and accuracy during output periods.

A liquid crystal display device includes pixels having pixel electrodes and a common electrode. A liquid crystal material is held between the pixel electrodes and common electrode. Pixel switches are provided to supply video signals to the pixel electrodes. A plurality of memories are provided to store the video signals in a digital form supplied from the switches to the pixel electrodes. Connection controllers connect the memories to the pixel electrodes and periodically reverse polarities of the video signals output from the memories to the pixel electrodes with respect to potential of the common electrode. A potential setting terminal is provided and auxiliary capacitor lines connected to the potential setting terminal constitute capacitive coupling with the pixel electrodes. Separation circuits are provided to keep the auxiliary capacitor lines in an electrically floating state by electrically disconnecting the auxiliary capacitor lines from the potential setting terminal while the connection controllers connect the memories to the pixels.

A start-up circuit for a bandgap reference circuit includes a sampling circuit for sampling current through a diode in one of first and second diode / resistor networks that respectively provide complementary PTAT and CTAT characteristics in the bandgap reference, and a current injection circuit to inject current to a PMOS bus of the bandgap reference if the sampled current is not higher than a pre-designated low value. By virtue of this operation, since current through the diode itself is sampled, the start-up circuit ensures that current through the sampled diode is higher than the pre-designated low value, thereby leading to rapid start-up of the bandgap reference to a stable operating point.

The magnetic disk device includes magnetic disks, magnetic head arms and wind shield members arranged above and below the magnetic disks, respectively, in a region adjacent to the magnetic head arms. The wind shield members are arranged on the rotationally upstream side of the magnetic head arms, and the air flow generated by the rotation of the magnetic disks and impinging against the magnetic head arms is guided to the outside of the magnetic disks.

Dummy cells each having the same layout as a normal memory cell are aligned in a row direction to the normal memory cells, and are arranged in rows and columns. In each dummy cell column, a dummy bit line is arranged, and a plurality of dummy cells are simultaneously selected and connected to the corresponding dummy bit line when one word line is selected. A voltage detecting circuit detects the potentials on the dummy bit lines to determine timing of activation of a sense amplifier. In the semiconductor memory device, the potential on the dummy bit line can be changed at high speed, and internal data read timing can be optimized independent of a structure of a memory cell array.

An electronic device able to accurately receive external wireless information, a reception controller for the electronic device, and a reception control program for the electronic device. A radio-controlled timepiece has a stepping motor unit and an external wireless information reception unit for receiving a carrier wave with time information. The stepping motor unit has a magnetic field evaluation unit for detecting whether or not an external magnetic field is present and outputting a signal indicative of whether or not such an external magnetic field is present. The external wireless information reception unit has an antenna for receiving external wireless information and a receiving circuit for processing external wireless information received from the antenna. A reception controller controls the external wireless information reception unit according to the external-magnetic-field-detection signal output from the magnetic field evaluation unit.

Dummy cells each having the same layout as a normal memory cell are aligned in a row direction to the normal memory cells, and are arranged in rows and columns. In each dummy cell column, a dummy bit line is arranged, and a plurality of dummy cells are simultaneously selected and connected to the corresponding dummy bit line when one word line is selected. A voltage detecting circuit detects the potentials on the dummy bit lines to determine timing of activation of a sense amplifier. In the semiconductor memory device, the potential on the dummy bit line can be changed at high speed, and internal data read timing can be optimized independent of a structure of a memory cell array.

The embodiment of the invention discloses a vehicle following method for self-driving travel, and aims to solve the technical problem that a following vehicle cannot accurately run on a driving route of a leading vehicle. The method provided by the embodiment of the invention comprises the following steps: acquiring real-time position information of the leading vehicle; generating a real driving route of the leading vehicle according to the real-time position information; transmitting the real driving route to all following vehicles, and displaying the real driving route on navigation maps of the following vehicles. The embodiment of the invention further provides a vehicle following device for self-driving travel.

An image forming apparatus suppresses several kinds of inconveniences caused by unnecessary contact of a belt-formed member with opposing members and drives the belt-formed member accurately even when the belt-formed member separated from a part of a plurality of opposing members. In an image forming apparatus having a belt-formed member supported by a plurality of supporting rollers and a plurality of opposing members located side by side in a line to oppose and contact the belt-formed member, a pivot mechanism is employed to temporarily separate the belt-formed member from a part of the opposing members for color image formation. The image forming apparatus also includes a tension roller dive mechanism to increase a relative distance between the tension roller and other supporting rollers to suppress a decrease in a tension of the belt-formed member during the above-described separation of the belt-formed member from the plurality of opposing members.

Driving assistance apparatus 10 is provided for assistance with driving a vehicle along narrow roadways. The apparatus 10 comprises a data acquisition unit 12 for acquiring data on the route trajectory to be covered from wheel and steering angle sensors 14, 16, and a trajectory storage unit 18 for recording the route data. A unit 20 is provided for triggering the motor vehicle on the basis of the recorded route data and for driving along the recorded route in the same or reverse direction. This comprises a satellite navigation unit 28 for determining the absolute position of the motor vehicle as well as digital map data 38 with position attribute data for checking whether the motor vehicle is located in the vicinity of road areas with restricted scope for navigation. In such a case the recording of a trajectory is suggested to the driver. Alternatively, the recording can be done automatically whilst the driver concentrates on manoeuvring. The invention can be for providing parking assistance and provides an option of controlled autonomous driving.

A lighting controller arranged to drive one or more light emitting semiconductors, the controller comprising a current source and / or a voltage source and a current and / or voltage sensor wherein the controller is arranged to drive the or each light emitting semiconductor using a substantially constant current or voltage and further arranged to either monitor the actual current passing through the light emitting semiconductor and the controller being arranged to monitor the voltage such that the disconnection or occurrence of faults within the or each light emitting semiconductor can be detected; or monitor the actual voltage across the light emitting semiconductor and the controller being arranged to monitor the current such that the disconnection or occurrence of faults within the or each light emitting semiconductor can be detected.

A safety switch control mechanism includes a linkage and a safety control key. The linkage has a bracket mounted to an instrument panel of an exerciser and a wheel thereof rotatably mounted to the bracket. The instrument panel includes a keyhole located at an opposite side thereof to the bracket. The wheel has at least one hook portion formed at an outer periphery thereof, and a holding portion and a releasing portion formed at one side thereof. The safety control key has a through hole for engaging said at hook portion. When the safety control key is inserted into or pulled away from the keyhole, the sidewall of the through hole forces clockwise or counterclockwise rotation of the wheel to further shift the releasing portion for contact against a micro switch mounted to the instrument panel, and thus the micro switch is driven to switch on or off the power supply of the exerciser.

The invention relates to a lens driving device having an anti-shake function. An anti-shake actuator comprises first anti-shake coils which are fixed on the rear side of a magnet support, second anti-shake coils which are fixed on one side of a pedestal, first magnet components which are fixed on the magnet support and opposite to the second anti-shake coils in a spaced way, and second magnet components which are fixed on one side of the pedestal and opposite to the first anti-shake coils in a spaced way. The OIS movable part of the lens driving device having the anti-shake function only comprises one set of magnet and one set of anti-shake coil, and the other set of the magnet and the anti-shake coil are arranged in the OIS fixed part so that the weight of the movable part is greatly reduced in comparison with that of the present four sets or two pairs of magnets, the requirement for the suspension spring can be reduced and the overall size can be more compact. The movable part is only provided with one set or one pair of magnets so that magnetic interference of at least one direction can be reduced through orientation arrangement, and driving of the lens is enabled to be more accurate.

A voltage comparison unit compares a battery voltage with a predetermined threshold voltage, and outputs a comparison signal. A sequence circuit receives the comparison signal and a start-up signal instructing start-up of equipment mounted with a UVLO circuit, and executes a predetermined sequence when start-up is instructed by the start-up signal in a state the battery voltage is higher than the threshold voltage. A voltage control unit switches the threshold voltage based on the comparison signal and the start-up signal.