Abstract: A method of converting an input analog signal to a compensated digital signal comprises converting the input analog signal to an uncompensated digital signal, inputting the uncompensated digital signal to a distortion model, generating a modeled distortion signal based on the uncompensated digital signal, and subtracting the modeled distortion signal from the uncompensated digital signal to generate the compensated digital signal. A distortion compensating analog to digital converter (ADC) comprises an uncompensated ADC configured to convert an input analog signal to an uncompensated digital signal, and a compensation module coupled to the uncompensated ADC, configured to receive the uncompensated digital signal, generate a modeled distortion signal based on the uncompensated digital signal and subtract the modeled distortion signal from the uncompensated digital signal to generate the compensated digital signal.

Abstract: An analog-to-digital converter includes a comparator, a latch, and a bias control unit. The comparator is turned on by an applied bias voltage for comparing an analog voltage with a ramp voltage. The latch activates an end signal when the ramp voltage becomes greater than the analog voltage as indicated by the comparator. The bias control unit uncouples the bias voltage from the comparator when the end signal is activated for reducing power consumption.

Abstract: An A/D converter has a first voltage generation circuit, a second voltage generation circuit, a comparator, first and second switch circuits connected in series between an input terminal of an analog input voltage and an output terminal of the first voltage generation circuit, a first capacitor inserted between a connection node between the first and second switch circuits and the first input terminal, a second capacitor inserted between an output terminal of the second voltage generation circuit and the second input terminal, a third switch circuit, a fourth switch circuit, an A/D converter which generates a digital signal in accordance with signal level of the first output terminal, and a voltage setting circuit which sets a voltage to be outputted from the first and second voltage generation circuits based on the digital signal.

Abstract: Disclosed herein are a time division sampling digital to analog converter for a flat panel display, a method of implementing the digital to analog converter, and a data driver circuit using the digital to analog converter.

Abstract: A digital sum value (DSV) control apparatus inserts a DC control bit for each DC control block. The apparatus includes a first DSV accumulated value comparator for setting a target flag to a DC control bit for a first DC control block, a second DSV accumulated value comparator for comparing a first DSV accumulated value accumulated and calculated from DSV values of the first DC control block with a second DSV accumulated value accumulated and calculated from DSV values of a plurality of DC control blocks subsequent to the first DC control block, and a DC control bit determination output section for determining a value of a DC control bit for the first control block according to an output of the first and the second DSV accumulated value comparators.

Abstract: An electromagnetic wave absorber has a configuration in which at least three hollow tetrahedrons, each having one open face, are connected to one another that each surface opposite to a respective open face of the hollow tetrahedrons defines a respective side face of a hollow pyramid. Preferably, the electromagnetic wave absorber is made of sheet electromagnetic wave absorption members, which have a corrugated board structure in which at least one sheet includes an electrically conductive material. The electromagnetic wave absorber is low-cost, has reduced transport volume, excellent electromagnetic wave absorption characteristics from low frequency to high frequency with a shorter absorber length, has no or small difference in characteristics due to polarization plane, is lightweight and high in structural strength, and easy to manufacture and install.

Abstract: A concealed object detection system for detecting objects concealed on a person includes radar transceivers that are each configured and positioned to direct a radar signal at a person and to detect a portion of the radar signal reflected by the person. A processor connected to the radar transceivers processes the portions of the radar signals detected by the radar transceivers to determine whether the person is carrying a concealed object. The system may produce a real-time alert, such as an audible alert, when a concealed object is detected.

Abstract: A network, network device and method is disclosed. In one embodiment, a method includes transmitting communication signals from a first network node to a second network node, where the first and second network nodes comprise a network and each include a receiver portion and a transponder portion. The method further comprises receiving, by the first and second network nodes, position signals from a plurality of navigation beacons, and generating transmitter codes for the transponder portions using local code generators of the receiver portions.

Abstract: An antenna includes a ground portion, a radiating element, and an interconnecting element connected to the ground portion and the radiating element. The radiating element includes a first radiating trace including a turning point connected to a first segment and a second segment of the first radiating trace, and a second radiating trace connected to the second segment of the first radiating trace.

Abstract: A multifrequency H-shape antenna is disclosed herein. The multifrequency H-shape antenna includes a conductive radiating element, a conductive grounding element, a conductive interconnecting element, and a coaxial cable. The conductive radiating element includes a left end, a right end, and a T construction. The conductive interconnecting element includes a first part, a second part, and a third part. The conductive interconnecting element is connected between the conductive radiating element and the conductive grounding element. The coaxial cable is electrically connected to the feeding point of the conductive interconnecting element. By using the improved construction described above, the wireless bandwidth can be increased.

Abstract: Monopole antennas are provided. A monopole antenna transmitting radio signals within a specific frequency range includes a substrate, a ground, a first sleeve portion, a second sleeve portion, a first conductive element, a second conductive element and a cable. The first conductive element and the ground are formed on the substrate. The first and second sleeves electrically connect the ground and project from a side of the ground in a first direction. The first conductive element comprises a feed end and a connection portion adjacent to an edge of the substrate. The second conductive element connects the connection portion and projects from the edge of the substrate substantially in the first direction. The cable connects the ground and the feed end to transmit the radio signal.

Abstract: A multi-band antenna structure includes a ground plane, a first radiation metal arm, a first shorted parasitic arm and a second shorted parasitic arm. The first radiation metal arm is connected to a main transmitting antenna and has a first feed point for connecting a first feed line. The first shorted parasitic arm extends to the outside from the ground plane. The first shorted parasitic arm is between the first radiation metal arm and the ground plane for resonantly coupling the first radiation metal arm at a first band. The second shorted parasitic arm also extends to the outside from the ground plane. The second shorted parasitic arm is between the first radiation metal arm and the first shorted parasitic arm for resonantly coupling the first radiation metal arm at a second band.

Abstract: An antenna device is for a mobile unit to transmit/receive signals, and the mobile unit comprises a printed circuit board which is mounted with a signal processing circuit for processing the signals, the antenna device comprises an antenna body, a metal feeding line, and a ground metal layer. The antenna body is mounted on one side of the mobile unit for transmitting/receiving signals. The metal feeding line made on the upper surface of the printed circuit board, one end of the metal feeding line is connected to the antenna body and the other end of the metal feeding line is in connection with the signal processing circuit from the center part of an edge of the printed circuit board. The ground metal layer is formed on the lower surface of the printed circuit board.

Abstract: Provided is an antenna apparatus for a portable terminal including a first antenna pattern, and a second antenna pattern formed to correspond to the first antenna pattern, so that the second antenna provides a capacitive coupling along with the first pattern, thereby configuring a divergent type antenna with the second antenna pattern. The antenna apparatus configured in this manner comprises a pair of meander line antennas, whereby the antenna apparatus can efficiently suppress the generation of noise while being easily housed within the terminal. Furthermore, the antenna apparatus has an advantage of easily enhancing a specific absorption ratio (SAR) induced in a human body, which is an important factor for defining the function and quality of an antenna apparatus.

Abstract: An antenna includes a substrate, a ground element, a radiating element and a feed element. The ground element is disposed on the substrate and has an opening. The radiating element is disposed on the substrate and electrically connects to the ground element. The radiating element comprises a first radiating trace and a second radiating trace. The first radiating trace includes a first segment, a second segment, and a first bended portion connected the first segment and the second segment. The second radiating trace connects to the second segment of the first radiating trace. The feed element is disposed on the substrate and electrically connects to the radiating element. The feed element and the radiating element are at the same surface of the substrate, and a part of the feed element extends and enters the opening.

Abstract: An antenna ground structure, for use in an electronic apparatus includes an antenna main body and electrically conductive plastic material connecting the antenna main body is a metal frame of the electronic apparatus to provide an electrical connection between the antenna main body and the metal frame. Better electrical characteristics can be provided to the antenna main body through the antenna ground structure. The manufacturing process is further improved.

Abstract: A dual function composite system includes a first electronic subsystem, a second electronic subsystem, and a composite member between the first and second electronic subsystems. The composite member includes plies of fabric, and resin impregnating the plies of fabric. At least one ply of the fabric includes signal transmission elements integrated therewith and interconnecting the first electronic subsystem with the second electronic subsystem.

Abstract: A method for operating a transmitting/receiving station of a wireless communication network in antenna diversity mode, this station having a plurality of reception antennas, consists in listening to the communications between two other transmitting/receiving stations of the network, successively on each reception antenna, then analysing the quality of listening on each reception antenna so as to identify a reception antenna from among the plurality of reception antennas which sets up the best communication link with one of the said other two transmitting/receiving stations.

Abstract: In order to provide a compact loop antenna, for use in an inductive read/write apparatus, capable of extending a communication range even if the antenna area or power supply thereto is constrained, a compact loop antenna, for use in an inductive read/write apparatus, comprises two layers of loop antennas, each thereof comprising a printed circuit board 2 for featuring a loop pattern 1, a loop pattern 1 formed by an etching process on the printed circuit board 2, and a start terminal 3 and a end terminal 4 for supplying power for signal transmission and outputting a received signal and each thereof maintaining a predetermined distance from each other.

Abstract: Multi-array antennas providing dual electrical azimuth beam steering, combined mechanical and electrical azimuth steering, independent mechanical column steering and dual mechanical steering. Systems incorporating such antennas and methods of controlling them are also provided.

Abstract: The invention relates to a frequency dispersive antenna. The antenna comprises at least one top part and one bottom part. The top part and the bottom part comprises radiating waveguides coupled electromagnetically by way of coupling slots to a feed waveguide. The feed waveguide of the top part of the antenna does not comprise any coupling slot over a length L. The length L is chosen so as to achieve an electric length substantially equal to the electric length of the feed guide coupled to the bottom part of the antenna. In particular, the invention applies to the pinpointing of meteorological phenomena over an angular domain greater than the natural width of an airborne antenna.

Abstract: An antenna apparatus including a feed element excited by first and second wireless frequency signals, first non-feed elements for controlling directivity with respect to the first wireless frequency signal, second non-feed elements for controlling directivity with respect to the second wireless frequency signal, second variable-reactance circuits disposed between the second non-feed elements and ground, filters for passing the first frequency band and cutting off the second frequency band, which are connected to the first non-feed elements, and first variable-reactance circuits disposed between the filters and the ground.

Abstract: A data communication system for use on a surface or subsurface vessel. The system includes a base system and a plurality of user components. The base system includes a marine enhanced ground proximity warning system (MEGPWS), a communication component, and a wireless transceiver coupled to the MEGPWS. The user component includes a wireless transceiver, an earpiece speaker, a microphone, a heads-up display (HUD), and a processor coupled to the wireless transceiver, the earpiece speaker, the microphone, and the HUD. The processor generates an image for presentation on the HUD based on information received from the base system. Also, the processor receives voice signals from the microphone, prepares and transmits the received voice signals for transmission to the base system, receives voice signals from the base system via the wireless transceiver, and prepares and outputs the voice signals received from the base system via the earpiece speaker.

Abstract: A problem to be solved by the invention is to provide a vehicle outside-image display apparatus that is capable of visualizing a visual field blocked by an obstacle. A vehicle outside-image display apparatus includes a vehicle outside-image capturing unit (114) adapted to capture an image outside the vehicle by a camera (111), an image receiving unit (116) adapted to receive vehicle outside-image information from outside, an image combining unit (118) adapted to combine the vehicle outside-image information received by the image receiving unit (116) with an image captured by the vehicle outside-image capturing unit (114), and an image display device (141) adapted to display renewed vehicle outside-image information produced by the image combining unit (118).

Abstract: The plasma display device comprises a plasma display panel forming discharge cells at intersections between data electrodes (D1-Dm) and both of scanning electrodes (SCN1-SCNn) and sustain electrodes (SUS1-SUSn), and a scanning electrode drive circuit for applying a specified voltage to the scanning electrodes (SCN1-SCNn), in which the scanning electrode drive circuit includes a scanning circuit connected to the scanning electrodes (SCN1-SCNn), an initializing circuit connected to the scanning circuit for generating an initializing waveform, and a sustain circuit connected to the scanning circuit for generating a sustain pulse, and is characterized by issuing a drive waveform in a lapse of specified time after turning on the power.

Abstract: The present invention relates to a plasma display apparatus. The plasma display apparatus according to a first embodiment of the present invention comprises a plasma display panel having a scan electrode and a sustain electrode, a sustain pulse controller for applying a sustain pulse to either the scan electrode or the sustain electrode in a sustain period of at least one sub-field.

Abstract: An electron emission display device and a control method of the same. The electron emission display device includes a display region having a plurality of scanning lines and a plurality of data lines; a plurality of pixels arranged in regions defined by the scanning lines and the data lines; a data driving unit for transmitting a data signal to the data lines; a scanning driving unit for transmitting a scanning signal to the scanning lines; and a controlling unit for identifying display data for indicating a brightness displayed by the pixels, and correcting the input data input into the pixels using compensation coefficients corresponding to the pixels. In this electron emission device, the input data is corrected in the controlling unit by multiplying the compensation coefficients by the input data.

Abstract: The present invention relates to a display device that employs edge emitters as a source for pixel electrons. The edge emitters allow the viewing glass plate to be made very small or eliminated, thereby substantially reducing the size of or eliminating the spacers typically utilized in conventional display devices and thereby enabling a simple and compact assembly structure. In one embodiment a pixel configuration comprises a phosphor area disposed between a plurality edge emitters, each of which are associated with tynes that are adapted to reduce the distance between the emitters and that separate the phosphor area into segments such that the emitters emit electrons when the voltage between a phosphor segment and the an emitter exceed a threshold voltage to cause the phosphor segment to emit light.

Abstract: Systems and methods for providing threshold voltage compensation of pixels are provided. A representative system incorporates first switching element and a voltage compensation driver. The first switching element is operative to transfer a data signal. The voltage compensation driver is operative to generate a compensation voltage according to a reference signal and output a driving current according to the data signal and the compensation voltage.

Abstract: Embodiments of the present invention relate to an organic electroluminescent device using different driving voltages according to sub-pixels. The organic electroluminescent device may include a panel, a driving voltage circuit and a driver. The panel may have a plurality of sub-pixels. The driving voltage circuit may generate a plurality of driving voltages. The driver may drive the sub-pixels by using the generated driving voltages. The organic electroluminescent device may use driving voltages corresponding to sub-pixels, and power consumption may be reduced.

Abstract: A display device and a method of driving the display device include first and second pixel row groups having at least one pixel row including a plurality of pixels, a plurality of scan lines, a plurality of data lines, and a data driver generating the data voltage including a normal data voltage and a reverse bias voltage. The data driver applies one of the normal data voltage and the reverse bias voltage to the data line according to a selection signal. The normal data voltage is applied to the driving transistors of the first pixel row group, and the reverse bias voltage is applied to the driving transistors of the second pixel row group. Accordingly, the reverse bias voltages are applied to the pixels, preventing transition of threshold voltages of the driving transistors.

Abstract: Various embodiments of methods and systems for designing and constructing displays from multiple light-modulating elements are disclosed. Display elements having different light-modulating and self-assembling characteristics may be used during display assembly and operation.

Abstract: A liquid crystal display is provided. The liquid crystal display includes a first panel, a second panel facing and separated from the first panel, a liquid crystal layer interposed between the first and second panels, a plurality of variable capacitors that vary capacitance thereof by pressure, and a plurality of reference capacitors formed on the second panel and connected to the variable capacitors.

Abstract: The present invention relates to a display device including a display panel divided into an edge region and first and second display areas, first and second pixels respectively formed at the first and second display areas, a light source irradiating light on the display panel, optical sensors formed at the edge region or the first display area and receiving external light to generate sensing signals corresponding to luminance of the external light, a sensing signal processor determining a current condition of luminance based on the sensing signals to generate luminance control signals, and a light source controller controlling luminance of the light source according to the luminance control signals. Thus, power consumption of the display device is reduced by controlling luminance of the light source.

Abstract: Disclosed is an LCD capable of adaptively selecting a gamma curve based on a viewing angle. The LCD includes: a viewing angle detector for detecting the viewing angle of an LCD panel to generate information about the viewing angle, and a gamma curve determiner for selecting a gamma curve corresponding to the information of the viewing angle and controlling the gray level with a gamma voltage value defined by the selected gamma curve. The viewing angle detector has a driving voltage generator and a voltage divider. The driving voltage generator outputs a gate-on/off voltage and an analog driving voltage based on an externally input power, and the voltage divider drops the level of the gate-on voltage to generate a first voltage. A viewing angle generator outputs information about the viewing angle based on the analog driving voltage and the first voltage.

Abstract: A display device includes a display panel, a reference gamma processing part, a source driving part, and a timing controlling part. The display panel includes a plurality of pixel parts displaying an image. The reference gamma processing part outputs a reference gamma voltage in every period. The source driving part converts a data signal into a data voltage of an analog type based on the reference gamma voltage during the period. The timing controlling part delays the data signal of at least one frame and the reference gamma voltage based on the at least one frame corresponding to the data signal to apply a delayed data signal and a delayed reference gamma voltage to the source driving part. Therefore, an image display quality is improved.

Abstract: A display device with reduced power consumption has pixels coupled with data lines and arranged in a matrix, a signal controller processing input image signals and outputting output image signals, and a data driver applying data voltages, corresponding to output image signals, to the data lines. When all the input image signals have either a first or second value, the output image signals have the first value. The signal controller generates a polarity signal for determining data voltage polarity, and when all the input image signals have either a first or second value, data voltages corresponding to the input image signals have a polarity equivalent to a polarity of previously applied data voltages. The signal controller generates a control signal for controlling the data driver's clock synchronization circuit, and the control signal halts the clock synchronization circuit when an operating frequency is lower than a predetermined value.

Abstract: The present invention relates to an OCB liquid crystal display, wherein a normal image data voltage and a black gray data voltage are repeatedly applied to a data line and a gate on signal of the gate line is controlled to form a pixel row (normal data pixel row) having the normal image data voltage applied thereto, a pixel row (black data pixel row) having the black gray data voltage applied thereto, and a pixel row (middle pixel row) having both of the normal image data voltage and the black gray data voltage applied thereto, and accordingly flicker is not visible, the OCB liquid crystal is not broken, and the liquid crystal display is improved in luminance.

Abstract: In a optically compensated bend (OCB) liquid crystal display, an impulsive voltage is applied to a pixel between applications of normal data voltages for displaying an image, and the impulsive voltage and the normal data voltage are controlled to prevent breaking of the bending alignment of the (OCB) liquid crystals. Accordingly, luminance of the liquid crystal display can be improved. When the normal data voltage of 0V is applied, the impulsive voltage at which the bending alignment of OCB liquid crystal is broken is set to the impulsive voltage at (for, corresponding to) the highest gray. There occurs a broken region (0-VB) where the bending alignment of the OCB liquid crystal is broken at a predetermined range that is higher than 0V. A voltage that is higher than the highest voltage (VB) of the broken region is set to a white voltage. Accordingly, luminance of the OCB liquid crystal display can be enhanced.

Abstract: A method is provided for compensating for output nonuniformity on a display. The method comprises characterizing the display. The method further includes creating a set of data tables wherein one table provides data for compensation along vertical axes of the display and a second table provided data for compensation along horizontal axes of the display, and wherein components of the tables include a linear offset factor to correct data for nonuniformity and a slope factor which permits gray scale information to be recovered at points near the limits of the gray scale range. The characterizing step may include using a optical detector to obtain optical output information from the display. The slope factor may be calculated to preserve top end gray scale range of the display by adjusting luminous output so that input data level maps to separate output grey levels between a truncated and an untruncated level.

Abstract: Systems and methods for identifying defective pixels and adjusting an input to control display of the defective pixels may improve the quality of the image viewed on a flat panel display including one or more defective pixels. The screen position of each defective pixel is identified and stored. Adjustment information is also stored for each defective pixel. The adjustment information is used to modify a stored color value for each defective pixel or to disable one or more color components of each defective pixel prior to displaying an image on a flat panel display device including the defective pixels.

Abstract: A method of providing data, an LCD and a driving method are disclosed. An image data voltage is inverted. A charge share voltage between the inverted image data voltages is used as a black data. The image data voltage and the black data voltage are applied in sequence, wherein the charge share voltage between the inverted image data voltages is applied as the black data voltage. Thus, motion blurring may be suppressed and manufacturing cost may be reduced because it is unnecessary to generate the black data voltage separately. Also, the typical driving frequency is used even if the black data voltage is used, to reduce cost.

Abstract: Disclosed is a common voltage regulating circuit of a liquid crystal display device which can be adjusted by software, comprising: a pulse signal generating means for outputting a pulse width modulation signal in response to up/down signal for adjusting a common voltage; a smoothing means for smoothing a pulse width modulation signal to a direct current level provided from the pulse signal generating means; and an amplifying means for amplifying the signal smoothed by the smoothing means to a predetermined level and then outputting a common voltage signal. Accordingly, since a common voltage can be adjusted by software by means of a surplus pulse width modulation signal generated in an integrated board without installing a separate hardware, the common voltage can be easily adjusted. Further, since a variable resistor has not been used, not only manufacturing cost but also possibility of breakage can be reduced.

Abstract: It is an object to provide a timing controller and an image display device which are capable of recognizing the resolution of a display panel with a simple structure. Image signal line driving devices include integrated plural driving circuits which are connected to one another in a cascade manner. Further, the image signal line driving devices are also connected to one another in a cascade manner. A timing controller transmits a horizontal start pulse to the image signal line driving device, then receives the returned horizontal start pulse returned thereto after being circulated through the driving circuits included in the image signal line driving devices and determines the resolution (the number of pixels) in the horizontal direction of the liquid crystal display panel based on the interval between the transmission and the reception of the start pulse.

Abstract: A display apparatus includes a plurality of pixels arranged in a matrix array; a plurality of gate lines applying a same gate signal to at least two rows of the pixels; a plurality of data lines crossing the gate lines; a TFT disposed at an intersection of each gate line and each data line; and a light source part sequentially providing at least two colors of light to each pixel every frame, thus enhancing a charging rate of each.

Abstract: A low price image display device which has a smaller number of mounted components and allows high-accuracy display, is provided by making proper use of both a high-accuracy, low-voltage DA converter IC and a DA converter circuit having high-voltage TFTs formed on an insulated substrate in accordance with a display signal value.

Abstract: An exemplary driving circuit of a liquid crystal display includes a delay circuit (130), a first transistor (140), a second transistor (160), a first bias resistor (R1), and a second bias resistor (R2). The first transistor includes a source electrode for receiving a first voltage signal, and a drain electrode for providing the first voltage signal to a first external circuit. The second transistor includes an emitter electrode for receiving a second voltage signal, and a collector electrode for providing the second voltage signal to a second external circuit. The delay circuit includes a first control pin (137) connected to the gate electrode of the first transistor, and a second control pin (138) connected to the base electrode of the second transistor. The delay circuit is configured for delaying the first voltage signal for a first predetermined time period and the second voltage signal for a second predetermined time period.

Abstract: A driving apparatus for a liquid crystal display device includes a liquid crystal display panel having a plurality of data lines and gate lines arranged in a matrix configuration, a data driver for supplying video data to the data lines, a gate driver for supplying gate pulses to the gate lines, and a timing controller for controlling polarity of the video data by supplying a polarity inversion signal to the data driver and controlling a timing of the data driver and the gate driver according to a number of horizontal synchronization signals supplied during a data blanking period, wherein a plurality of the polarity inversion signals are different from each other.

Abstract: A source driving method and a source driver for a liquid crystal display device having a plurality of pixels, wherein each pixel comprises a first color sub-pixel with a first displaying wavelength, a second color sub-pixel with a second displaying wavelength less than the first displaying wavelength, and a third color sub-pixel with a third displaying wavelength less than the second displaying wavelength are provided. First, a digital data is received. Then, a digital to analog process is performed to convert the digital data into an analog data. Next, the analog data is sequentially selected and output to the first color sub-pixel, the second color sub-pixel, and then the third color sub-pixel of the selected pixel. The source driving method can improve the image color fidelity of the liquid crystal display device.

Abstract: A liquid crystal display device and an electronic device, which provide compensation for the difference of brightness caused by the LC effect to improve the image color fidelity is provided. The present invention provides a source driving method for a LCD device including providing data signals representing images to be displayed at a plurality of sub-pixels corresponding to different display wavelengths within a pixel and sequentially activating the sub-pixels within the pixel, in the order from a sub-pixel corresponding to the shortest display wavelength to a sub-pixel corresponding to longest display wavelength.