55results about How to "Minimize noise" patented technology

A supply voltage controlled power amplifier that comprises a power amplifier, a closed power control feedback loop configured to generate a power control signal, and a dual voltage regulator coupled to the power control feedback loop, the dual voltage regulator comprising a first regulator stage and a second regulator stage, wherein the closed power control loop minimizes noise generated by the first regulator stage.

The present invention relates to a method and system for haptic interaction in augmented reality. More specifically, the present invention relates to a method and system for haptic interaction in augmented reality that can effectively remove noise from real images captured by an image capturing device and minimize discontinuity of force generated in the haptic interaction so as to stably and smoothly perform the haptic interaction in the augmented reality.The present invention provides an augmented reality system and a method for providing augmented reality therefor, the augmented reality system comprising: a marker detecting unit that receives images for a real environment including markers and detects the markers included in the images; a marker position extracting unit that extracts the positions of the detected markers; a noise removing unit that removes noise from positional information of the markers extracted from the marker position extracting unit; a visual rendering unit including a virtual object augmenting unit that augments virtual objects corresponding to the markers and outputs them to the positions of the markers; a motion estimating unit that estimates the motion of the markers over a time step so as to perform the haptic rendering on the basis of the positional information of the markers transferred from the noise removing unit; a collision detecting unit that detects whether the virtual objects corresponding to the positions of the markers estimated by the motion estimating unit collide with end points of the haptic device; and a haptic rendering unit including reaction force calculating unit that calculates reaction force to be provided through the haptic device according to a determination of the collision detecting unit.

A method for determining a list of survey points for a drilling well includes a feedback loop in which one or more measured parameters are compared with computed or derived parameters. The computed parameters are typically obtained from other / additional measurements. For example, in one exemplary embodiment of the invention, a magnetic least distance vector determined via magnetic ranging is compared with a geometric least distance vector computed from conventional borehole surveying measurements. Estimates of the drilling well azimuth and / or inclination may be adjusted to yield a good agreement between the magnetic and geometric least distance vectors. Exemplary embodiments of the present invention advantageously provide for a substantially real-time determination of a definitive well path for a drilling well as well as a substantially real-time relative placement of the drilling well with respect to a target well.

Systems for determining hydraulic fracture geometry and / or areal extent of an area of interest in a reservoir, are provided. An exemplary system includes downhole acoustic receiver equipment isolated from fracturing operations in a lower portion of a first wellbore, and fracturing equipment located in a second wellbore connected to the first wellbore. Communications between surface equipment in the downhole acoustic receiver equipment is provided through a communications conduit bypass that permits well operations in the second wellbore without interfering with communications between the surface equipment and the downhole acoustic receiver equipment.

For driving an image sensor having a pixel with a transfer gate formed between a photo-detector and a floating diffusion region, a noise-reducing voltage is applied on the transfer gate during a first period of an integration mode. A blooming current voltage is applied on the transfer gate during a second period of the integration mode. A read voltage is applied on the transfer gate during a read mode after the integration mode. The read voltage has a higher magnitude than the blooming current voltage. With application of the noise-reducing voltage, noise is reduced and a dynamic range is extended for the image sensor.

The invention relates to a method and device for driving a piezo-electric actuator. A driving voltage is coupled to the piezo-electric actuator by an inductive element coupled in series with the piezo-electric actuator. The piezo-electric actuator is adapted to move an object. The frequency of the driving voltage coupled to the piezo-electric actuator is varied and the velocity of the object is recorded as a function of the frequency. Subsequently, an optimum frequency is determined and the frequency of the driving voltage is adjusted to be substantially equal to the optimum frequency. The optimum frequency is preferably associated with a maximum obtainable velocity of the object.

A microelectromechanical modulating magnetic sensor comprising a base; a magnetic transducer associated with the base that provides an output in response to a magnetic field; a pair of movable flux concentrators positioned to move relative to the magnetic transducer; the pair of movable flux concentrators having a region of high flux concentration between the pair of movable flux concentrators; the pair of flux concentrators moving together in tandem with the distance between the pair remaining substantially constant during movement; support structure for supporting the pair of movable flux concentrators; a power source for causing the movable flux concentrators to move at a frequency within a predetermined frequency range; whereby when the pair of movable flux concentrators is in a first position the region of high flux concentration is in a first location, and when the pair of movable flux concentrators is in a second position, the region of high flux concentration is in a second position; such that as the flux concentrators move from the first position to the second position the intensity of the flux sensed by the transducer is modulated as the region of high flux concentration approaches and recedes from the location of the transducer.

A method is provided for characterizing a scientific material, such as a silicate material, a polymer material and / or nanomaterial. The method can include the steps of irradiating a measuring light of a predetermined wavelength range into material specimens, recording the measuring light reflected and / or reemitted by the material specimens, determining a ratio depending on the wave lengths of irradiated to detected measuring light (spectrum), and numerical-mathematical processing of spectral data of single material specimens for determining the characteristic features of the material specimens.

A supply voltage controlled power amplifier that comprises a power amplifier, a closed power control feedback loop configured to generate a power control signal, and a dual voltage regulator coupled to the power control feedback loop, the dual voltage regulator comprising a first regulator stage and a second regulator stage, wherein the closed power control loop minimizes noise generated by the first regulator stage.

A roll for selective use as either a support drum or as a rider roll in a winder for winding a traveling paper web into a relatively large diameter wound web roll has a body with an outer, elastomeric cover. The elastomeric cover includes a pattern, open to the surface, arranged such that the percent of volumetric void for a unit of cover volume is such that the effective hardness of the cover ranges between about 30 Shore "A" to about 55 Shore "A" where the roll is a support drum, and between about 40 Shore "A" to about 65 Shore "A" when the roll is a rider roll. In addition, the elastomeric material has an absolute hardness of about 65 Shore "A", or less, for a support drum, and about 75 Shore "A", or less, for a rider roll, and a Poisson's ratio of between about 0.47 to about 0.499.

Non-white light from an endoscope (201) of a teleoperated surgical system (200) is used to illuminate a surgical site (203). A camera (220L) captures an image of the surgical site, and the image is displayed on a monitor (251). The non-white light illumination minimizes noise in the images of the surgical site presented on the monitor relative to images captured using white light illumination and displayed on the monitor.

Disclosed herein is a linear vibration motor. The motor includes a casing surrounding the top and widthwise side of the motor, and a bracket surrounding the bottom and lengthwise side of the motor. A plate is provided on an inner surface of a side of the bracket and integrally has a cylindrical part to accommodate a coil. A mass body is provided in a central portion of the bracket and vibrates horizontally, a yoke is provided on a side surface of the mass body, and a magnet is mounted to a central portion of the yoke to be inserted into an internal space of the coil. A spring couples the plate with the yoke, thus transmitting vibratory force to the motor. An extension part extends from an end of the spring, and a bearing is provided on an end of the extension part, thus minimizing friction with the casing.

The present invention relates to a touch sensor having an antenna. The touch sensor comprises: a touch sensor part including a sensing electrode part; and an antenna part formed on the touch sensor part. The antenna part is formed in a state of being insulated from the sensing electrode part on the sensing electrode part composing the touch sensor part. According to the present invention, even when mounting the antenna on a display region in which a touch sensor is installed, noise due to interference between a touch sensor signal and an antenna transmission / reception signal can be minimized.

In a brake-by-wire vehicle brake system that uses a solenoid shut-off valve (24a, 24b), the electric power supplied to the solenoid (33) of the solenoid shut-off valve is controlled so as to decelerate a movement of a plunger (31, 32) of the valve as the plunger reaches a point immediately adjacent to a terminal point thereof. Thereby, a highly responsive property can be achieved while the noises that are generated by the plunger striking a stopper (36) or a valve seat (34) can be minimized. When actuating the plunger in the valve closing direction, the solenoid may receive electric power at a first level, a second level lower than the first level and a third level intermediate between the first and second levels in that order.

The present disclosure relates to a display device including a display module, cover bottom, a PCB, and a cover shield. The PCB includes a guide hole formed therethrough in a thickness direction and coupled to the cover bottom to be disposed on a rear surface of the cover bottom. The cover shield includes a guide protrusion configured to protrude from one surface at a position corresponding to the guide hole to be inserted into the guide hole and configured to be coupled to the cover bottom to cover the PCB. Accordingly, the cover shield is configured in such a way that the guide protrusion of the cover shield is inserted into the guide hole of the PCB interposed between the cover bottom and the cover shield while the cover shield is coupled to the cover bottom, thereby more easily and accurately guiding an assembly position of the cover shield.

A fluid-filled vibration-damping device includes an elastic body elastically connects a first mounting member and a cylindrical second mounting member bonded to opposite side thereof; a diaphragm supported by the second mounting member so that the diaphragm cooperates with the elastic body to define therebetween a fluid chamber; and a partition member supported by the second mounting member so that the partition member divides the fluid chamber into a primary fluid chamber and an auxiliary fluid chamber which are held in communication through an orifice passage defined by an orifice-defining member having a movable rubber plate disposed in its central hole. The surface of the orifice-defining member is coated at a primary-fluid-chamber-defining area by a coating rubber layer, thereby minimizing noises caused by bubbles in the fluid chamber.

A source driver and a display device having the same are provided. The source driver shares several outputs by using a time division method and has an analog voltage stored in a buffer supplied to each data line multiple times during a horizontal scanning interval. Accordingly, by supplying an analog voltage to a data line a first time in a first activation interval and supplying an analog voltage to a data line a second time in a second activation interval, a target voltage of each pixel may be achieved quickly and accurately.

A pressure regulation assembly of a fuel supply includes a receptacle, an inlet connectable to the fuel supply and in fluid communication with the receptacle, an outlet in fluid communication with the receptacle, and a pressure regulator mounted in the receptacle to selectively open fluid communication between the inlet and the outlet. The receptacle includes a first surface surrounding an axis, and a second surface surrounding the axis and the first surface to provide a void between the first surface and the second surface. The pressure regulator extends into the void between the first surface of the receptacle and the second surface of the receptacle and includes a third surface surrounding the axis and a fourth surface surrounding the axis and the third surface. A first seal engages the first surface of the receptacle and the third surface of the pressure regulator. A second seal engages the second surface of the receptacle and the fourth surface of the pressure regulator.The pressure regulator can include a first housing member, a second housing member connected to the first housing member, and a closing member movably contained within the first housing member and the second housing member. The second housing member includes a continuous wall having a base, a recess in the base, an opening in the recess, and a seat adjacent the opening and surrounding the opening. The closing member is selectively engageable with the seat to fluidly seal the opening. The recess has a first surface surrounding an axis and an inner sealing portion on the first surface. The wall also includes a second surface surrounding the axis and the first surface and having an outer sealing portion.

A motor-driven compressor includes a compression portion, an electric motor, a motor drive circuit having switching element, a temperature detector, and a switcher, which switches the drive mode of the motor drive circuit. When acquiring information indicating that the temperature detected by the temperature detector has increased and reached a first preset temperature, the switcher switches the drive mode of the motor drive circuit from a first drive mode to a second drive mode. Also, when acquiring information indicating that the temperature detected by the temperature detector has increased and reached a second preset temperature, which is higher than the first preset temperature, the switcher switches the drive mode of the motor drive circuit from the first drive mode or the second drive mode to a third drive mode.

The present invention relates to an impedance measuring device obtaining impedance of portions of an object corresponding to two sensing electrodes by detecting, through the two sensing electrodes, an electrical variation shown on the object as an electrical signal is applied. A detector amplifying each of signals detected through the two sensing electrodes and then differential-operating the amplified signals to generate a signal for obtaining impedance is subjected to a calibration process for adjusting the gain of the amplifiers to reduce in-phase noise added due to an imbalance between the sensing electrodes.

A replacement or retrofit radio which can be used to replace a wide range of older automobile radios and fit into an almost unlimited number of dashboard configurations comprises a radio case or enclosure having a display sized to fit into most original automobile dashboard radio display openings. Separate control knob shafts and associated controls are provided electrically connected to the radio via relatively long cables. With separate control knob shafts, there is no limit to where the controls and shafts are placed with respect to the radio case and display. A selected set of brackets can be attached to the radio with the selected set of brackets providing adjustable physical mounting of the control knob shafts to the brackets and physical connection of the control knob shafts to the radio. This allows mounting of the radio in the dashboard of the automobile in the usual manner of tightening nuts onto threaded control knob shaft sleeves. An insulating gasket may be used to isolate the case from the brackets and / or the control knob shafts to reduce the pick up of unwanted electrical interference.

A scanning microscope comprises a beam deflector with at least one movable deflector to adjust the deflection of a light beam. The scanning microscope is characterized in that the movable deflector is positioned in a largely soundproof housing with one entrance window and / or one exit window.

A system for analyzing smoke has a plurality of units, wherein each unit includes an optical emitter for alternately directing horizontally and vertically polarized light along a beam path, and into a smoke cloud, to generate scattered light. A horizontally polarized detector and a vertically polarized detector are positioned at different locations, but at a same distance and scattering angle relative to the beam path. Each unit has a different wavelength. A computer receives signals from the detectors of all units, in response to each emitter, for analysis of the smoke.

The present disclosure relates to a display device including a display module, cover bottom, a PCB, and a cover shield. The PCB includes a guide hole formed therethrough in a thickness direction and coupled to the cover bottom to be disposed on a rear surface of the cover bottom. The cover shield includes a guide protrusion configured to protrude from one surface at a position corresponding to the guide hole to be inserted into the guide hole and configured to be coupled to the cover bottom to cover the PCB. Accordingly, the cover shield is configured in such a way that the guide protrusion of the cover shield is inserted into the guide hole of the PCB interposed between the cover bottom and the cover shield while the cover shield is coupled to the cover bottom, thereby more easily and accurately guiding an assembly position of the cover shield.

The invention discloses an electronic device and a heat dissipation control method of the electronic device. The heat dissipation control method comprises the steps that the first threshold value Tm1n of each heating unit is set, the first working temperature value Tn of each heating unit is collected, and whether the first working temperature value Tn of each heating unit is larger than the corresponding first threshold value Tm1n is judged; when the first working temperature value Tn of each heating unit is larger than the corresponding first threshold value Tm1n, the corresponding heating unit is added into an air supply list; the air supply list is read, wherein the air supply list contains M heating units; according to the first working temperature values Tn of all the heating units in the air supply list and the corresponding first threshold values Tm1n, the air supply ratio of all the heating units in the air supply list is determined; according to the air supply ratio, the angle of a drainage plate is adjusted, so that air flow of a first fan is distributed to the M heating units in the air supply list in a guide channel according to the air supply ratio.