Abstract: The present invention provides an apparatus and a method for estimating at least one of timing, gain, and offset errors of a time-interleaved ADC. The apparatus has a first ADC, a second ADC, a converter, an estimator, and a compensator. The converter has a Fourier Transform converter and a calculator.

Abstract: An analog-to-digital converter (ADC) disposed in a data reception path to convert data from an analog format to a digital format is switched between two or more power modes to conserve power when data is not being received. ADC stays in a lower power-lower precision mode until an inbound data is detected, at which time the ADC switches to a higher power-higher precision mode to convert the data. Once data conversion is completed, the ADC switches back to the lower power-lower precision mode to conserve power.

Abstract: A reference voltage generating circuit includes: a first capacitor; a second capacitor; a reference voltage sampling capacitor; a first switch for alternatively coupling the second capacitor to a predetermined voltage to allow the second capacitor to sample the predetermined voltage; a second switch for alternatively coupling the second capacitor to the first capacitor to allow the second capacitor to redistribute charges with the first capacitor in order to generate the reference voltage; and a third switch for alternatively coupling the first capacitor to the reference voltage sampling capacitor to allow the reference voltage sampling capacitor to redistribute charges with the first capacitor in order to output the reference voltage.

Abstract: A detachable remote controller for an electronic entertainment device and a method for using the same are provided. The detachable remote controller includes a first infrared transmitter and a second infrared transmitter. The first infrared transmitter transmits signals to the electronic device while the detachable remote controller is coupled with the entertainment device. The remote controller is shaped in such a way to be docked within a cavity and flush with one surface of the entertainment device. The first infrared transmitter is aligned in the cavity such that the first infrared transmitter transmits signals to a light pipe embedded within the entertainment device. The second infrared transmitter is located at one end of the detachable remote controller to transmit signals to the entertainment device while the detachable remote controller is not coupled with the entertainment device.

Abstract: One embodiment of the present invention includes scanning a target with electromagnetic radiation including one or more frequencies in a range of about 200 MHz to about 1 THz; establishing a point cloud representation of the surface of the target from the scan; and performing one or more curve-fitting operations as a function of at least a portion of the points of the point cloud representation to represent at least a portion of the surface of the target.

Abstract: A GPS receiver comprises a crystal oscillator with a manufacturer's characteristic curve, a GPS radio, a TCO temperature sensor, and a GPS receiver software. The crystal oscillator serves as a local reference oscillator for the GPS radio. The GPS receiver software instructs the GPS radio to search radio spectrum for GPS satellite transmissions. Once the combination locks onto a minimum number of GPS satellites and produces a user position fix, the precise crystal oscillator frequency can be measured and associated with a temperature reading from the TCO to software-compensate the local oscillator in later cold-start frequency searches. A “flat” SCXO model is piecemeal upgraded with individual calibrations as they are collected over the life of the GPS receiver. During manufacturing of the GPS receiver such flat-SCXO model begins as a device characteristic curve supplied by the crystal manufacturer.

Abstract: A method and apparatus for mitigating multipath effects in a satellite signal receiver is described. The method includes computing at least one pseudorange residual as a function of (i) a measured pseudorange to a given satellite, and (ii) an expected pseudorange to the given satellite, which is derived by mathematically projecting a pseudorange to the given satellite. The method also includes applying the measured pseudorange to a sequential-estimation filter, which is configured to solve a navigation-solution problem, when the pseudorange residual satisfies a given threshold.

Abstract: Method for the elimination in a receiver of an incident signal resulting from multipaths, characterized in that an array of 2n auxiliary sensors (2, 3, Ca to Cf), with n?3, is constructed around an antenna main sensor (1), these auxiliary sensors all being equidistant from the main sensor and regularly spaced apart, and, by successively taking the pairs of auxiliary sensors symmetric with respect to the main sensor to determine the direction of arrival of the signal resulting from the multipaths, the weighted combination of the signals arising from the n sensors is performed, the direction of the transmitter being known (ej?i).

Abstract: An integrated patch antenna is disclosed. The integrated patch antenna receives at least a first and second band of signals. The integrated patch antenna includes a bottom metallization and first and second upper metallizations disposed about a dielectric material to receive the first and second signal bands. The first and second signal bands may be, for example, a satellite digital audio radio systems (SDARS) band and a global positioning system (GPS) band.

Abstract: An antenna device is disclosed. An antenna such as a dipole antenna and a parallel feeder each formed of a conductor pattern are disposed on a dielectric plate. The connector is connected to the antenna through the parallel feeder. The parallel feeder has a length of an integral multiple of a half wavelength and has an even number of bending points between the connector and the antenna.

Abstract: A wide frequency band planar antenna comprises an elongated portion, substantially parallel to a circumferential edge of a ground pattern and comprising one end connected to a feeding transmission line, wherein there is a gap between the elongated portion and the circumferential edge of the ground pattern; a body stub and an impedance-matching-adjusting pattern for adjusting an impedance matching between the wide frequency band planar antenna and the feeding transmission line; wherein the gap value is less than 2 mm so as to enable the wide frequency band antenna to operate at a wide range of frequencies ranging from 2.3 GHz to near 6 GHz, thereby allowing the wide frequency band antenna to be applied in both WiFi LAN and WiMAX MAN.

Abstract: A metal plate in the form of a strip, bent into a bracket shape, is provided on the surface of a circuit board opposite to the surface of the board facing a human body. The proximal end of the metal plate is connected to a ground pattern provided on the circuit board, close to an antenna power supply point, with the longitudinal direction of the plate adjusted parallel to the main polarization direction of an antenna element.

Abstract: In an antenna device of the present invention, an upper cabinet 2 is pivotally supported on a lower cabinet 4 through a hinge mechanism 3, the lower cabinet 4 containing a radio module 41, the upper cabinet 2 having a plurality of antennas 21 disposed therein. The hinge mechanism 3 includes a cylindrical shaft member 31 openably and closably connecting the two cabinets 2, 4 to each other, an outer peripheral surface of the shaft member 31 having a plurality of groove portions 32 formed at axially spaced intervals. A plurality of cables 22 are wound around the outer peripheral surface of the shaft member 31 while being respectively fitted in the plurality of groove portions 32.

Abstract: An antenna and a wireless mobile communication device incorporating the antenna are provided. The antenna includes a first conductor section electrically coupled to a first feeding point, a second conductor section electrically coupled to a second feeding point, and a near-field radiation control structure adapted to control characteristics of near-field radiation generated by the antenna. Near-field radiation control structures include a parasitic element positioned adjacent the first conductor section and configured to control characteristics of near-field radiation generated by the first conductor section, and a diffuser in the second conductor section configured to diffuse near-field radiation generated by the second conductor section into a plurality of directions.

Abstract: An object of the invention is to provide an FM radio receiver capable of improving the receiving state. The radio receiver 10 is disposed within a vehicle room and provided with a vehicle-mounted antenna connection terminal 12. The radio receiver 10 includes a front-end unit converting to an intermediate frequency signal an FM broadcast signal received via a vehicle-mounted antenna 110, a signal line inserted between the vehicle-mounted antenna connection terminal 12 and the front-end unit, and an in-vehicle antenna 14 branching out from the signal line. A radio wave transmitted from an FM transmitter 40 disposed within the vehicle room via an antenna 42 is received by the radio receiver 10 via the in-vehicle antenna 14.

Abstract: An antenna mounted on a supporting system primary structure of a vehicle, in which the supporting system primary structure has an indentation. The antenna includes an EM functional core incorporated into the indentation of the supporting system primary structure, and a cover plate forming one of an upper and outer cover of the EM functional core that is structured and arranged as a conformal outside. Furthermore, boundary areas of the cover plate are connected with the supporting system primary structure. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: An antenna is incorporated into the cowl grille of a motor vehicle adjacent the front windshield. The antenna comprises a receiver module or component and wire or cable which extends along the cowl grille generally parallel to the front windshield. The wire or cable can extend outside the cowl grille, and terminates in a connector which can be fed to the passenger compartment of the vehicle for connection to a radio, or the wire or cable can terminate as a molded-in connector as part of the cowl plastic allowing for direct connection from the vehicles wiring harness.

Abstract: An antenna system comprising a plurality of antennas designed and oriented to provide one or more of radiation pattern, signal polarization and spatial diversity. The various diversity operational characteristics are achieved by using similar antennas physically oriented to provide the diversity attributes or by using dissimilar antennas, that is, antennas having different radiation pattern and/or signal polarization characteristics.

Abstract: Leaky wave antenna beam steering that is capable of steering in a backward direction, as well as further down toward the horizon in the forward direction than was previously possible, and also directly toward zenith. The disclosed antenna and method involve applying a non-uniform impedance function across a tunable impedance surface in order to obtain such leaky wave beam steering.

Abstract: A resonance element array 200 is disposed between a primary radiator 1 and a lens 3. In the resonance element array 200, resonance elements of linear conductors and variable reactance circuits are arranged on a dielectric substrate. A control voltage is applied to a fixed variable reactance circuit by a control portion so that a fixed resonance element is excited by an electromagnetic wave from the primary radiator 1 and the direction of optical path to be collimated by the lens 3 is electronically changed. Thus, an antenna device, in which a beam scanning is speeded, power consumption for the beam scanning is reduced, operation noise in the beam scanning is eliminated, the reliability is increased, and, when required, the beam direction can be directed to any direction, can be obtained. Furthermore, when necessary, the beam radiation pattern can be changed.

Abstract: This invention relates to a phase shifting device, which generally comprises of rigid chassis, in the form of an aluminum plate, which can form a ground plane for feed lines (12) printed on a printed circuit board (16), which is mounted on the chassis, a rigid RF transparent block, which is fixed to an actuator arm and mounting bolts for slidably mounting block and actuator on the chassis. A flexi circuit, or the equivalent, (18) is attached to the block and is printed with generally c-shaped conductive strips (23), which form connections at open parts of the feed lines, in such a manner that movement of the block will cause changes in the effective lengths of the feed lines (12) and hence the relative phases of antennas fed by those feed lines.

Abstract: An antenna assembly includes at least two active or main radiating omni-directional antenna elements arranged with at least one beam control or passive antenna element used as a reflector. The beam control antenna element(s) may have multiple reactance elements that can electrically terminate it to adjust the input or output beam pattern(s) produced by the combination of the active antenna elements and the beam control antenna element(s). More specifically, the beam control antenna element(s) may be coupled to different terminating reactances to change beam characteristics, such as the directivity and angular beamwidth. Processing may be employed to select which terminating reactance to use. Consequently, the radiator pattern of the antenna can be more easily directed towards a specific target receiver/transmitter, reduce signal-to-noise interference levels, and/or increase gain.

Abstract: Disclosed is a communication system for a tire, whose receiving antenna is less likely to be damaged even in a case where the antenna is arranged near the tire. In this communication system, a motor vehicle is equipped with a receiver for receiving data from an electronic device installed in a wheel including a tire, and a receiving antenna connected to the receiver. The receiving antenna is covered with a flexible insulator to form an antenna insert body, and the antenna insert body is arranged within a range which allows the data to be accepted.

Abstract: The present invention is a method and apparatus to mount a satellite dish to a pole. This apparatus allows the mounting of a satellite dish without attaching the dish to the user's home or business.

Abstract: A new reinforced monopole cellular telephone tower comprises a plurality of flanged pipes strapped to the exterior of the monopole tower. The straps retain the pipes to the monopole tower in a spaced relationship, and the flanges permit the pipes to be bolted together. The flanged pipes form columns about the monopole tower. Elastomeric pads are placed between the flanges at some or all of the bolted flanged connections to reduce the bending moment at the connections. The thickness of the pads may vary depending on vertical location, and some connections at lower levels may not require the pads. The elastomeric pads allow the upper portion of the monopole tower to retain most of its flexibility without unduly overstressing the pipe reinforcing that is undergoing high compression during high wind conditions.

Abstract: A method for manufacturing a helix antenna. A ceramic cylinder including a central through hole, a first annular surface, and a second annular surface is provided. The first annular surface is opposite the second annular surface. The central through hole is between the first and second annular surfaces. A flexible printed circuit board with a metal feeding strip extending outside the flexible printed circuit board is provided. The flexible printed circuit board is swirled and attached to the circumferential surface of the ceramic cylinder.

Abstract: Alternating impedance electromagnetic bandgap (AI-EBG) structures, systems incorporating AI-EBG structures, and methods of making AI-EBG structures, are disclosed.

Abstract: There is disclosed a dielectric resonator antenna adapted to resonate in an EH11? resonance mode, and also a method for the manufacture thereof. The desired resonance mode is achieved by careful positioning of a dielectric resonator (2) on a grounded substrate (1), the resonator (2) being fed by way of a microstrip feed line (9) and a slot (6) in the grounded substrate (1). Because the EH11? resonance mode has nulls in a direction of longitudinal extension of the dielectric resonator (2), a plurality of antenna can be placed end-to-end so as to form an array with reduced coupling between adjacent antennas and with vertical polarisation, which is desirable for mobile communications applications.

Abstract: A portable data processing device is provided with first and second display devices. The first display device receives signals for displaying a first set of information, and the second display device receives signals for displaying a second set of information. The second display device forms a skin of the portable data processing device. The device also has a graphics engine for receiving data for generating display signals for the first set information and the second set of information. Driver circuits are coupled to said first and second display devices, in which corresponding ones of the driver circuits are coupled to the first and second displays, the driver circuits being coupled to an output of the graphics engine. The first and second display devices have disjoint display areas.

Abstract: A method and implementing system are provided for enabling a user, through the use of a specialized viewing device, to view information on a display device which is not viewable by others who are not equipped with the device. In an exemplary embodiment, selected sensitive information on a display screen is obscured from normal view. A view-enabling device is provided to authorized individuals who are able to use the device to view the sensitive information on the display device. The user looks through the view-enabling device and is able to see the otherwise obscured sensitive information. Obscuring fields are overlaid upon the sensitive information during an obscuring phase at a known overlay frequency and the view-enabling device is synchronized to effectively block-out the user's view of the display during the obscuring phase resulting in an un-obscured view of the sensitive information on the display device to the user.

Abstract: Method for controlling stroke video generation components by creating a program to command the video generation components to provide video signals and integrating high level software constructs into the program. Integration of the high level software constructs into the program may entail integrating a GOTO command to enable repetition of a section of the program and repetition of a display sequence provided by implementation of that section, integrating a GOSUB and RETURN command to enable multiple use of a single section of the program at different locations within the program, integrating a conditional command to enable one portion of the program to be implemented when the condition is satisfied and another portion to be implemented when the condition is not satisfied, and/or integrating a DO-WHILE loop to enable repetition of a section of the program when a condition is satisfied and continuation of the program when the condition is not satisfied.

Abstract: A display apparatus, that includes current driving type luminescent elements, has a driving system that takes the conduction types of TFTs to control the emission of the luminescent elements into consideration. In order to reduce driving voltage and improve display quality simultaneously, the arrangement is provided such that if the second TFT which performs the “on-off” function of the current for the luminescent element is of an N channel type, the potential of the common power supply line (“com”) is lowered below the potential of the opposite electrode (“op”) of the luminescent element to obtain a higher gate voltage (“Vgcur”).

Abstract: A display apparatus includes a spatial light modulator, such as a digital micromirror device or an LCD panel, and a lighting unit that illuminates the spatial light modulator. The lighting unit may include red, green, and blue lamps which emit light that impinges on a DMD from at least two different directions. The lamps may be flash tubes which are fired at different binary levels in accordance with the rank of the bits that are being displayed on the DMD. The lamps may be fluorescent lamps which are driven steadily at predetermined levels while the rows of micromirrors are turned on in sequence and subsequently turned off in sequence. Resetting to dislodge micromirrors that have become stuck can be accomplished by emitting current pulses through the micromirrors while exposing them to a magnetic field. The illumination unit may include a lamp unit and a color wheel.

Abstract: An electro-optical device includes: data lines extending in a first direction above a substrate; scanning lines extending in a second direction and intersecting the data lines; pixel electrodes and thin-film transistors arrayed so as to correspond to intersection regions of the data lines and the scanning lines; capacitors formed at a layer higher than the semiconductor layer of the thin-film transistors and at a layer lower than the pixel electrodes, and electrically connected to pixel potential; and upper light shielding film positioned between the data lines and the pixel electrodes; the upper light shielding film defining at least the corners of pixel opening regions; and the scanning lines, the data lines, and the capacitors, being formed in the light shielded region.

Abstract: A circuit for and a method of driving the liquid crystal panel of a liquid crystal projector make it possible to manufacture a projector having a plurality of light sources inexpensively. The circuit for driving the liquid crystal panel of a liquid crystal projector having a plurality of lamps as light sources has a CPU circuit for managing the overall system and data of the liquid crystal projector, a video signal processing circuit for converting a video signal input from an external source into a digital signal, and a panel correcting circuit for correcting the digital video signal generated by the video signal processing circuit depending on characteristics of a liquid crystal panel of the liquid crystal projector so as to match the liquid crystal panel. The CPU circuit outputs corrective data to the panel correcting circuit depending on how the lamps are energized, and the panel correcting circuit corrects the video signal using the corrective data.

Abstract: Disclosed is a liquid crystal display device which is capable of adjusting a contrast ratio by transforming and outputting input data of a reference voltage circuit. Analog voltage signal generator stores an input synchronous signal and a plurality of input digital data signal in response to a write enable signal, and converts the stored digital data signal into a plurality of analog voltage signal pairs in response to an output enable signal. A plurality of reference voltage generators divide a boosted source voltage according to the analog voltage signal pairs from the analog voltage signal generator to generate a plurality of reference voltages. A source driver integrated circuit receives the plurality of reference voltages from the plurality of reference voltage generators.

Abstract: A charge pump (1) for generating a first output voltage (Vo1) between a first output terminal (E) and a reference terminal (D), and a second output voltage (Vo2) between a second output terminal (F) and the reference terminal (D). The charge pump (1) further comprises a first input terminal (C) for inputting a DC voltage (V), a first storage capacitor (Cr1) coupled between the first output terminal (E) and the reference terminal (D) and a second storage capacitor (Cr2) coupled between the second output terminal (F) and the reference terminal (D). The charge pump (1) further comprises a first terminal (A) and a second terminal (B) for coupling a pump capacitor (Cp) to a first triplet of switches (S1, S2, S5) and to a second triplet of switches (S3, S4, S6). The first triplet of switches (S1, S2, S5) selectively couples the first terminal (A) to either the first input terminal (C) or to the reference terminal (D) or to the second output terminal (F).

Abstract: The backlight for a flat display device including a light source, a light guide plate and a surface hologram is provided. The light guide plate is installed at one side of the light source, and light from the light source travels in the light guide plate while being totally reflected. The surface hologram is formed on at least one surface of the light guide plate. The surface hologram has a pattern of a predetermined grating interval and a predetermined grating depth in order to diffract light at a predetermined angle toward the light guide plate.

Abstract: Two previously virtual concepts, such as, for example, the concept of “me” and the concept of “my data” are reified into physical objects which can be physically manipulated and interact with legacy technologies such as, for example, desktop or portable computers. In one exemplary embodiment, a portable computing device in the form of an animal, such as, for example, a bear, with a manipulatable user interface, is used to log onto and off of various computers.

Abstract: A photo device condenses the bright spot on the display to project the spot light onto the projection plane, thereby projecting it onto photo detectors the projection plane. A counter counts the time from the time of a vertical sync signal and supplies its output to AND gates. A correspondence detector brings bright spot display positions on the display at multiple times into correspondence with their projection positions on the photo device in accordance to recording time. An extrinsic parameter calculator calculates the 3-D translation and rotation of the photo device with respect to the bright spot scanning surface of the display from at least three sets of the bright spot display positions and their corresponding projection positions.

Abstract: An electronic input device has a flexible keyboard for receiving user input and a housing defining a space for accommodating the keyboard. The input device has a compacted state and an extended state. The keyboard adopts a compacted spatial configuration in the compacted state and adopts an extended spatial configuration in the second state. In the compacted state the keyboard is wound on a roll. The input device additionally has a retractable, flexible display having corresponding compacted and extended states so that both the keyboard and the display can be rolled in and out together.

Abstract: A force feedback mouse interface device connected to a host computer and providing realistic force feedback to a user. The mouse interface device includes a mouse object and a linkage coupled to the mouse that includes a plurality of members rotatably coupled to each other in a planar closed-loop linkage and including two members coupled to ground and rotatable about the same axis. Two actuators, preferably electromagnetic voice coils, provide forces in the two degrees of freedom of the planar workspace of the mouse object. Each of the actuators includes a moveable coil portion integrated with one of the members of the linkage and a magnet portion coupled to the ground surface through which the coil portion moves. The grounded magnet portions of the actuators can be coupled together such that a common flux path between the magnet portions is shared by both magnets.

Abstract: The present invention provides an input device such as a mouse which has a unique construction with integrated key plates and integrated side grips. In one embodiment, the input device comprises a housing, which includes a bottom case and an upper member disposed above the bottom case. The upper member includes a palm rest configured to support a user's palm and at least one key plate extending continuously from the palm rest to form a hinge between the at least one key plate and the palm rest without a gap. The key plate is movable in bending relative to the palm rest at the hinge to activate a key switch. The left side grip and the right side grip are formed on a single piece top case connected between the upper member and the bottom case. The left side grip and right side grip typically have concave surfaces.

Abstract: A computer keyboard with a monitor on the operating panel thereof. Data entered by users from the keyboard is synchronously displayed on the keyboard monitor, eliminating the need for a user to look back and forth at the positions of keys and the data displayed on the monitor during a data entry process. The keyboard can also be an independent input device used to enter data even when the keyboard is disconnected from the computer. Such a keyboard has a memory unit that can temporarily store the entered data while the keyboard is disconnected, and then load the data into the computer when the keyboard recovers its connection with the computer. Thus, the keyboard is capable of receiving and storing data when the keyboard is disconnected, and transmitted stored data upon reconnection with the computer.

Abstract: An interactive apparatus is provided with a display, on which tactilely enhanced (TE) visual images may be rendered, to temporally realize a wide range of user input keys and/or user selectable menu/list items. In one embodiment, the display includes a flexible visual display layer and a tactile display layer, and the apparatus includes corresponding device drivers for controlling rendering on the respective layers. In one embodiment, the apparatus is further provided with graphics functions, which generate in response to a request to render a TE visual image, pixel and piston data of the TE visual image, in accordance with an image specification of the TE visual image, having tactile attributes of the tactile enhancements.

Abstract: A touch screen system includes a touch panel to input image signals, a touch controller to drive the touch panel, an extension between the touch panel and the touch controller, and an anisotropic conductive film electrically interconnecting the extension to the touch controller.

Abstract: A frontlit touch panel for use with a reflective light valve, comprising a front light guide having at least one light input face that supplies light to the guide, a viewing face, a light output face opposite the viewing face, and at least one component of a touch-sensitive transducer, the light output face having a light extraction layer thereon having a substantially flat light exit face and containing buried reflective facets that extract supplied light from the guide through the light exit face. The touch panel can be used with a light source, reflective light valve and suitable control electronics to form a compact, efficient illuminated touch panel display assembly.

Abstract: A liquid crystal display can operate with as small a number of control signals supplied to individual drivers as possible while current control functions are maintained. The liquid crystal display comprises a liquid crystal panel containing a data line, a data driver driving a data line, and a controller outputting N control functions controlling a driving operation the data driver driving the data line through less than or equal to (N?1) control signal lines connected to the data driver.

Abstract: A method of displaying images with a display device includes receiving image data for a plurality of image frames. At least one sub-frame for each image frame is generated based on the received image data. The sub-frames for each image frame in a first set of the plurality of image frames are displayed at a first plurality of spatially offset positions. The sub-frames for each image frame in a second set of the plurality of image frames are displayed at a second plurality of spatially offset positions that is different than the first plurality of spatially offset positions.

Abstract: A pulse having a width of 20H is inserted into STV in correspondence with a vertical blanking period (a period of 21 H), and the speed of CKV is increased to 12 times the original speed over the period of 21 H at the same time the pulse becomes High. A video signal in the vertical blanking period is at a black level, so that black is written into all organic EL elements in the period. An organic EL display continues to display black for a time period elapsed until a video is next written by the original line selection pulse. The video signal is corrected such that the shorter a video display time period provided to the EL element becomes, the higher the input video luminance of the EL element becomes in order to display black.