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45results about How to "Increase quality" patented technology

Organic light emitting diode display and method of driving the same

ActiveUS20090213046A1Increase qualityMinimize deterioration of threshold voltageElectrical apparatusStatic indicating devicesData linesVoltage source
An organic light emitting diode display includes a data line, a gate line that crosses the data line to receive a scan pulse, a high potential driving voltage source to generate a high potential driving voltage, a low potential driving voltage source to generate a low potential driving voltage, a light emitting element to emit light due to a current flowing between the high potential driving voltage source and the low potential driving voltage source, a drive element connected between the high potential driving voltage source and the light emitting element to control a current flowing in the light emitting element depending on a voltage between a gate electrode and a source electrode of the drive element, and a driving current stabilization circuit to apply a first voltage to the gate electrode of the drive element to turn on the drive element and to sink a reference current through the drive element to set a source voltage of the drive element at a sensing voltage and to modify the voltage between the gate and source electrodes of the drive element to scale a current to be applied to the light emitting element from the reference current.
Owner:LG DISPLAY CO LTD

Display apparatus and display method

A display apparatus includes a display unit having a display screen divided into a plurality of regions and controlled using an aperture ratio on a pixel-by-pixel basis, a backlight including a plurality of sets of light sources, each set being disposed so as to correspond to one of the regions, and a control unit for detecting display luminance in each region, computing the emission luminance of each light source on the basis of the detected display luminance while taking into account an effect on the region of the other light sources not corresponding to the region, and computing a correction value for each pixel on the basis of a shift amount between the set emission luminance and an optimal display luminance for one of the regions, and delivering a display driving signal generated on the basis of the correction value to each pixel so as to control the aperture ratio.
Owner:SATURN LICENSING LLC

Audio limiting circuit

An audio limiting circuit capable of satisfying frequency dependent limits and time domain constraints, is disclosed. In one illustrative embodiment, an input node receives an unattenuated input signal and a system modeling filter predicts the amount, if any, by which the sound pressure level that would be generated by an acoustic transducer in response to the unattenuated input signal, would exceed one or more predetermined limits. In that embodiment, an energy detector separates the excess predicted sound pressure level into one or more frequency bands and calculates the average acoustic energy associated with each band. A gain logic block determines an attenuation factor based on whether one or more of the predetermined limits has been exceeded and the attenuation factor values are smoothed to minimize abrupt changes to the unattenuated input signal. A delay buffer delays the unattenuated input signal values. Finally, in the embodiment described here, the smoothed attenuation factor values are synchronized with and applied to the delayed input signal values and the resulting attenuated signal is transmitted to an output node and ultimately to one or more acoustic transducers.
Owner:PLANTRONICS

Method for packet polling in a WLAN

A method (500) is provided for dynamic packet polling during a power save mode. The method can include polling (504) an access point (104) for packets at a first rate on at least one access category, determining (506) a polling time-out as a function of a packet priority, and possibly changing the rate to a second rate in view of a second packet priority. The polling time-out can correspond to a duration interval of the polling for increasing an efficiency of the power save mode. The method can include establishing a poll timeout and an overall poll timeout as a function of each access category. The function can include mapping a packet priority to a response time for setting a timeout. In one aspect, the polling can be combined into a single polling stream for multiple access categories.
Owner:GOOGLE TECH HLDG LLC

Method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges

A method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges provides a low cost alternative to present external surround array systems. The overlapping frequency range of a pair of speaker drivers, generally a low-frequency and a high-frequency driver, is supplied with a surround channel information in a controlled phase relationship such that the surround channel information is propagated in a directivity pattern substantially differing from that of main channel information supplied to the low and high frequency drivers. The main channel information is generally directed at a listening area, while the surround channel information is directed away from the listening area so that the surround channel information is heard as a diffuse reflected field. An electronic network provides for control of the surround channel phase relationship and combining of main and surround signals via either an active or passive circuit.
Owner:CIRRUS LOGIC INC

Method of manufacturing semiconductor device

To irradiate a laser beam with the use of a mask having a different material and structure from the conventional one in the case where wide-ranging output laser beam is selectively irradiated. One feature of the present invention is that the laser beam is selectively irradiated by using a mask for reflecting the laser beam. The mask is formed of laminated films composed by laminating at least a first material and a second material. When the refractive index of the first material is n1; the refractive index of the second material is n2; and the refractive indices satisfy n1<n2, an amorphous semiconductor film, the first material, and the second material are sequentially laminated over a substrate to irradiate from a side of a top surface of the substrate with the laser beam.
Owner:SEMICON ENERGY LAB CO LTD

Image forming apparatus for recording on two sides in a single pass

An image forming apparatus for recording on two sides in a single pass, with which the transfer of a toner image onto one side of a recording medium and the transfer of a toner image onto the other side can both be performed under optimal conditions, which results in an increase in image quality. Contact-type transfer rollers are used as secondary and tertiary transfer means, so unlike with a transfer charger (a non-contact type of transfer means), there is no discharge product. A toner image that has been once transferred from an image support onto a recording medium is prevented from being retransferred back onto the image support, and a toner image that has been transferred onto the recording medium by the action of a first transfer member is prevented from being retransferred to the image support when a toner image is transferred onto the recording medium by the action of a second transfer member.
Owner:RICOH KK

Nanofiber manufacturing apparatus and method of manufacturing nanofibers

A nanofiber manufacturing apparatus (100) which produces nanofibers (301) by electrically stretching a solution (300) in space, includes: an effusing body (115) having effusing holes (118) for effusing the solution (300) into the space, a tip part (116) in which openings (119) at ends of the effusing holes (118) are one-dimensionally arranged at given intervals, and two side wall parts (117) provided extending from both sides of the tip part (116) so that the effusing holes (118) are located between the side wall parts (117) and distance between the side wall parts (117) increases with distance from the tip part (116); a charging electrode (121) disposed at a given distance from the effusing body (115); and a charging power supply (122) which applies a given voltage between the effusing body (115) and the charging electrode (121). The nanofiber manufacturing apparatus (100) keeps a high production rate per unit time and unit area and limits the impact of ionic wind while producing high and consistent quality of nanofibers.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Concept for encoding an audio signal and decoding an audio signal using deterministic and noise like information

An encoder for encoding an audio signal has: an analyzer configured for deriving prediction coefficients and a residual signal from an unvoiced frame of the audio signal; a gain parameter calculator configured for calculating a first gain parameter information for defining a first excitation signal related to a deterministic codebook and for calculating a second gain parameter information for defining a second excitation signal related to a noise-like signal for the unvoiced frame; and a bitstream former configured for forming an output signal based on an information related to a voiced signal frame, the first gain parameter information and the second gain parameter information.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV

Device for the separative machining of components made from brittle material

Device for severing components made from brittle material, for example, glass, ceramics, glass ceramics, by producing a thermally-induced stress fracture on component in a separation zone includes a laser for directing a laser beam onto component to be machined so that component partly transmits laser beam with partial absorption at least twice simultaneously or serially along separation zone at the same point or closely spaced points. Device includes a bearing surface on which component being machined is received, and device for subjecting component to mechanical stresses for promoting thermally induced stress fracture. Bearing surface has at least two bearing surface sections movable relative to each other between a first position and a second position, and component, in the first position, being supported in a manner substantially free from mechanical stresses, and, in a second position, component being subjected to mechanical stresses for promoting the thermally induced stress fracture.
Owner:H2B PHOTONICS GMBH

Method for planning the radiation therapy for a patient

A method is for producing CT scans, particularly for planning radiation therapy for a patient in the chest region, where the exclusive use of CT data is used to infer the respective motion phase of a scanned region. This information is used to produce phase-specific CT images. These images are used for the irradiation planning in the chest region, in particular.
Owner:SIEMENS AG

Device and Method for Thread Positive Feeding

The invention relates to a control unit for thread feeding devices, such as those associated with knitting machines and the like. The control unit generates pattern or switch data control signals based on a pattern memory, or otherwise, for the thread feeding devices. In an embodiment of the invention, the control unit adds to or subtracts from the pattern data any advance or lag angles as necessary to account for the structure of the machine and to thus assure effective thread feeding.
Owner:MEMMINGER IRO GMBH

Concept for encoding an audio signal and decoding an audio signal using speech related spectral shaping information

According to an aspect of the present invention an encoder for encoding an audio signal has an analyzer configured for deriving prediction coefficients and a residual signal from a frame of the audio signal. The encoder has a formant information calculator configured for calculating a speech related spectral shaping information from the prediction coefficients, a gain parameter calculator configured for calculating a gain parameter from an unvoiced residual signal and the spectral shaping information and a bitstream former configured for forming an output signal based on an information related to a voiced signal frame, the gain parameter or a quantized gain parameter and the prediction coefficients.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV

Manipulatable model for communicating manufacturing issues of a custom part

Any issues associated with manufacture of a part are identified and highlighted on a part model. A software method and system then uses motion of the part model for communicating the manufacturability issues to the customer. The motion can include a repositioning of a part rendering to a preferred orientation position, a fly-around so the customer can appreciate the next zoom location, and then a zooming in on the issue desired to be shown. Alternatively or in conjunction with the zooming and fly-around motion, the orientation of the part rendering showing the manufacturability issues can be three-dimensionally manipulated such as with a click-drag-drop command of the customer's computer mouse. By adding a moveable aspect to the communication, customers can much better understand which changes are recommended or required of the part.
Owner:PROTOLABS INC

Integral nozzle cleaning system

A nozzle for a liquid dispenser that incorporates a cleaning probe capable of removing foreign debris from a nozzle discharge passageway. The cleaning probe is moveable between a retracted position that permits fluid flow to a discharge orifice terminating the discharge passageway and an extended position in which the cleaning probe extends into the discharge passageway. As the cleaning fixture advances from the retracted position to the extended position, foreign debris present in the discharge passageway is displaced and ejected out of the discharge orifice.
Owner:NORDSON CORP

Smoke detector with sound quality enhancement chamber

A smoke detector having a sound quality enhancement chamber for increasing the sound quality of alarms produced by a sound producing device in the smoke detector. In at least one embodiment, the sound quality enhancement chamber is formed by a housing and a plate such that the chamber is in communication with a sound producing device, which may be a speaker, for producing sounds, such as a human voice, with enhanced quality. The sound quality enhancement chamber acts as a spring and increases the quality of the sounds produced by the sound producing device of the smoke detector. In at least one embodiment, the sound quality enhancement chamber enables a smoke detector to emit a parent's voice that is clear and easily understandable.
Owner:MONO PROD COMPANY

Method of compensating for write power of a light source in an optical disk apparatus and optical disk apparatus using the method

A method of compensating for a write power of a laser beam in an optical disk apparatus may include determining whether a predetermined write condition is satisfied, stopping a write operation if the predetermined write condition is not satisfied, measuring a write characteristic of a recording area right before stopping the write operation, and compensating for the write power for recording the information based on the measured write characteristic. The optimum write power of a light source may be compensated for when a current write length exceeds a predetermined write length from a write start location, when a current temperature in a driver is outside a predetermined temperature range, and / or when a reflected light intensity from an optical disk in a write operation is outside a predetermined light intensity range.
Owner:SAMSUNG ELECTRONICS CO LTD

Method of manufacturing a bi-metal screw

The present invention pertains to a method of manufacturing a bi-metal screw comprising a sequence of procedures; wherein, the process preparation is for arranging a shank portion and a drilling portion made of different materials; the shank portion has a planar welding surface defined thereon; in particular, the drilling portion includes a conical section with a conical surface defined on the top face thereof. While operating, the conical section is gradually welded to the planar welding surface to form a composite screw, so as to smooth the air away for preventing the interspaces generated within the junction of the two portions and rendering the composite screw not to be slanted aside. Subsequently, an integral bi-metal screw is formed through the processes of precisely cutting and formation, thereby increasing the quality of the screw.
Owner:TOP WELL TECH CORP

Method for operating an energy generator with inverter operation depending on a mains voltage and circuit layout

A method for operating a first energy generator in an electric power supply system to which a plurality of electric consumers and at least the first energy generator, which is embodied as a regenerative energy generator, are connected via respectively one grid connection point each assigned thereto, wherein at least the first energy generator has an inverter of predetermined power rating, the AC voltage output of which is electrically connected to a first grid connection point assigned thereto, and wherein the operating control of the inverter regarding its reactive power feed and / or its reactive power draw into or out of the electric power supply system takes place depending on a continuously measured mains voltage value. The reactive power control in the energy grid is improved in that the mains voltage value is measured at a second grid connection point, which is different from the first grid connection point of the energy generator.
Owner:BOB HLDG GMBH

Monitoring Aerial Application Tasks and Recommending Corrective Actions

Recommending corrective action during aerial application is provided. An unmanned aerial vehicle is navigated to a geolocation where an aerial application task is currently carried out. First sensor data is received from the unmanned aerial vehicle that characterize a quality of the aerial application task. Measures to be carried out to increase the quality of the aerial application task are determined based on the first sensor data. The measures are outputted while the aerial application task is ongoing so that the aerial application task can be adapted while the aerial application task occurs.
Owner:IBM CORP

Detecting errors in the timing between subtitles and shot changes

In various embodiments, a subtitle timing application detects timing errors between subtitles and shot changes. In operation, the subtitle timing application determines that a temporal edge associated with a subtitle does not satisfy a timing guideline based on a shot change. The shot change occurs within a sequence of frames of an audiovisual program. The subtitle timing application then determines a new temporal edge that satisfies the timing guideline relative to the shot change. Subsequently, the subtitle timing application causes a modification to a temporal location of the subtitle within the sequence of frames based on the new temporal edge. Advantageously, the modification to the subtitle improves a quality of a viewing experience for a viewer. Notably, by automatically detecting timing errors, the subtitle timing application facilitates proper and efficient re-scheduling of subtitles that are not optimally timed with shot changes.
Owner:NETFLIX

Driver circuit of display device

A driver circuit includes a mode control unit and a plurality of source drivers to drive a display panel including pixel cells on each scan line. Each source driver has M driving channels, and two subsets of the driving channels are respectively in a first mode and a second mode according to a preset mode sequence. The 1st through Nth driving channels of each of first source drivers and the Mth through (M−N+1)th driving channels of each of second source drivers respectively drive the pixel cells during a first scan period and a second scan period, wherein M≧N. The modes of the Mth through 1st driving channels of the second source drivers are respectively altered to match the modes of the 1st through Mth driving channels of the first source drivers by the mode control unit.
Owner:HIMAX TECH LTD

Driving circuit structure of liquid crystal panel

The present invention discloses a driving circuit structure of a liquid crystal panel, which mainly comprises a liquid crystal panel. The liquid crystal panel has an edge of a gate driving circuit and an edge of a source driving circuit. The edge of the gate driving circuit is provided with a plurality of gate driving COFs (chip on film). In the present invention, by gradually increasing trace widths of trace portions of the gate driving COFs along a gate scanning direction, the intensity of output signals of the gate driving COFs can be identical. Hence, it can eliminate the phenomenon of apparent boundary line that is appeared between the gate driving COFs of the liquid crystal panel, so as to increase the display quality.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Display driving integrated circuit and method for determining wire configuration of the same

A display driving integrated circuit includes: a tone display reference voltage generating circuit for generating 64 tone display reference voltages by resistive division on the basis of a predetermined reference voltage; D / A conversion circuits each for performing an analog conversion with respect to display data on the basis of the 64 tone display reference voltages; and 64 reference voltage wires provided in parallel, via which the 64 tone display reference voltages are supplied to the D / A conversion circuits, respectively. The 64 reference voltage wires are provided so that a potential difference corresponds to two tones or more between adjacent two reference voltage wires.
Owner:SHARP KK

Display device including timing controller

A display device is provided. The display device may include pixels arranged in rows and columns, gate drivers connected to the rows of the pixels through gate lines, source drivers connected to the columns of the pixels through source lines, and a timing controller configured to control the gate drivers and the source drivers. The source driver associated with the specific pixel among the source drives may first supply an overdrive voltage corresponding to a final overdrive value to a source line connected to the specific pixel and then supply a source line voltage corresponding to a current value of the specific pixel to the source line. The overdrive controller may change weight values of at least two overdrive values based on a position of the specific pixel and interpolate the at least two overdrive values.
Owner:SAMSUNG ELECTRONICS CO LTD

Knife ring [chip] cutter

The invention concerns a device for sharpening of knives, which are mounted in the knife ring of a chip cutter and whose cutting edges run essentially parallel to the knife ring axis. Several grinding tools can be run intermittently and simultaneously in the direction of the knife ring axis in order to sharpen individual knives The knife ring stands still during the sharpening and is rotated around its own axis during the pauses between sharpening corresponding to the distribution of the knives over the periphery of the knife ring. Any grinding tool sharpens any knife in such a way that the desired total (amount of) removed grinding material is achieved with the last grinding tool in the peripheral direction of the knife ring.
Owner:B MAIER ZERKLEINERUNGSTECHN
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