Abstract: A terrain database that is rendered in three-dimensional perspective on a Synthetic Vision display in a moving vehicle is updated in real-time in response to data from a ranging sensor. The updated database may be stored and shared with users of displays in other vehicles.

Abstract: A traffic information calculation device includes: a probe information database for accumulating vehicle information including a vehicle position and the time of the vehicle position; a branch judgment unit for judging the branch direction of the vehicle at an intersection according to the position of the intersection on the map database and the vehicle information; and intersection traffic information calculation unit for calculating the wait time or jam length of the branch direction at the intersection from the vehicle information. Thus, the intersection traffic information calculation unit can calculate the traffic information for each branch direction at the intersection and it is possible to obtain accurate traffic information for each branch direction even at an intersection having five directions or more.

Abstract: A wireless cursor control device for use with a computer system includes a main body, a wireless signal receiver, a storing portion and a resilient pad member. The main body generates a wireless signal to control a cursor of the computer system. The wireless signal receiver is swappable to be electrically connected to the computer system for receiving the wireless signal. The storing portion is disposed in the main body for accommodating the wireless signal receiver. The resilient pad member is engaged with the bilateral sides of the storing portion, and deformed to generate a restoring force when the wireless signal receiver is inserted into the storing portion. The resilient pad member is sustained against the wireless signal receiver according to the restoring force.

Abstract: An apparatus and method are provided for inputting characters in electronic equipment using a limited number of keys. A key input device may include a play/pause key (hereinafter, referred to as a ‘play key’), a repeat key, a record key, up/down/left/right arrow keys, and a confirm key. The key input device may generate key data corresponding to input keys. A flash memory may store a key table in which a character code, which may be a combination of certain key data, may be matched to a relevant letter. A display may display the relevant letter on a window. When key data are generated from the key input device, a central processing unit may confirm whether a combination of the generated key data is identical to a predetermined character code, based on the key table stored in the flash memory.

Abstract: A button box provides additional keys that can be used in conjunction with a telephone. In one embodiment, a button box is configured by associating it with a telephone and by programming its keys. When a key on the button box is activated, a key press event is sent from the button box to the associated phone. The phone treats the key press event as if a key on the phone itself had been activated and forwards the event to the voice switch appliance associated with the phone. (Alternatively, the key press event is sent from the button box directly to a voice switch appliance.) The button box's user interface is controlled by a voice switch appliance.

Abstract: A circuit arrangement having complementary data lines of a dual rail data bus, wherein in a regular operating phase the complementary data lines carry complementary signals, and in a precharge phase the complementary data lines assume an identical logic state or the same electrical potential. The circuit arrangement also has a device for detecting manipulation attempts, the device having a detector circuit, which outputs an alarm signal upon the occurrence of an identical logic state on both data lines in the regular operating phase.

Abstract: A multi-stage voltage converter in accordance with an embodiment of the present invention includes a first stage converter operable to convert an input voltage into a first output voltage, at least one second stage converter operable to receive the first output voltage from the first stage converter and to provide a second output voltage and a control circuit operable to control both the first stage converter and the second stage converter. The control circuit may independently control the first stage converter and the second stage converter using closed loop feedback. Alternatively, the control circuit may control the first stage converter such that the first stage converter has a constant duty cycle. In another embodiment, the control circuit may control the first stage converter such that the first stage converter has a duty cycle that follows the duty cycle of the second stage converter.

Abstract: A configurable architecture of a calculation device includes at least one individual configurable and/or reconfigurable switching device, whereby the output variables thereof form a time point tn-1 and the input variables of the switching device form a time point tn. Elements are provided in order to control the output variables in a clocked manner and to store the output variables of the switching device between the time points tn-1 and tn.

Abstract: A method is provided for implementing a coding and adaptive modulation scheme for application to a point-to-point orthogonal frequency division multiplexed radio communications link. The method determines estimates of the likelihood of the two least significant bits of the digital representation of an input amplitude being a predetermined logical level. The likelihood estimates are input to a Forward Error Correction decoder, which produces a decision as to the state of the bits taking into account previous samples. Once the decision has been made, it is known what the ideal input amplitude would have been in the absence of noise and distortion, on the assumption that the decision was correct, and hence the contribution due to noise and distortion can be estimated. This knowledge can be used to assist the decoding of the most significant bits.

Abstract: The signal level conversion circuit has a first terminal for a signal of a low power voltage; a second terminal for a signal of a high power voltage higher than the low power voltage; a level shifter which is disposed in a signal path from the first terminal to the second terminal to convert the low power voltage signal into the high power voltage signal; and a first input buffer including a first inverter of P1 and N1 whose gates are connected to the first terminal, and a one-way device between a voltage supply of the low power voltage and a source of P1.

Abstract: An apparatus for transmitting a position detection signal of a multi-shaft motor whereby a parallel-form detection signal that is output from position-detecting devices disposed on each of a plurality of motors and used for indicating a motor rotation position can be transmitted to motor drivers for controlling the driving of the motors via a group of a small number of wires. In the apparatus for transmitting a position detection signal of a multi-shaft motor, a transmission-side converter converts a parallel-form detection signal from rotary encoders to a serial signal and presents the resulting signal to a reception-side converter via a serial signal transmission path. The reception-side converter returns the received serial-form detection signal to a parallel-form signal and presents the signal to motor drivers.

Abstract: A programmable look-up-table (LUT) structure adapted for carry logic incrementer implementation in an integrated circuit, comprising: three or more data inputs and a carry-in input, said data inputs comprised of consecutive bits in a data string, said carry-in comprised of the increment value to the least order bit of said data string; and three or more data outputs and a carry-out output, said data outputs comprised of the incremented values of said data inputs, and said carry-out resulting from the incremented value of the highest order bit of said data inputs; wherein, said three or more data outputs are computed in a single carry computation stage within the LUT structure.

Abstract: Systems and methods for Current Management of Digital Logic Devices are provided. In one embodiment a method for calibrating a digital logic circuit current management system is provided. The method comprises activating one or more synchronous logic paths of a plurality of synchronous logic paths within the digital logic integrated circuit; sampling a voltage powering the digital logic integrated circuit while activating the one or more synchronous logic paths; storing one or more data samples representative of the sampled voltage; and calculating a bypass current setpoint based on the one or more data samples, wherein the bypass current setpoint specifies one or more bypass current characteristic to prevent the voltage powering the digital logic integrated circuit from dropping below a reference voltage.

Abstract: A two phase, second order capacitance-to-digital (CD) modulator includes a first stage sigma-delta integrator that forms charge packets as a function of sensor capacitance during an auto-zero phase and integrates the packets during an integration phase to produce an output voltage. The first stage integrator holds its output voltage during the auto-zero phase, so that a second stage sigma-delta integrator can sample the first stage output voltage during the auto-zero phase and integrate the sampled voltage during the integration phase.

Abstract: A capacitance-to-digital (CD) modulator converts capacitance of a differential pressure sensor to a pulse code modulation output signal. The first stage of the CD modulator is a sigma-delta integrator having an auto-zero capacitor connected between an integrator input node and an amplifier input. During an auto-zero phase, a feedback capacitor is connected between the amplifier input and output, and the auto-zero capacitor stores a voltage that is a function of leakage resistance of the sensor capacitor connected to the integrator input node. During an integration phase, the feedback capacitor is connected to the integrator input node. If an overpressure/short circuit condition exists, the stored voltage on the auto-zero capacitor induces a current to flow to the feedback capacitor to drive the integrator to saturation and suppress foldback anomaly.

Abstract: The invention relates to a continuous-time delta-sigma analog digital converter for converting an analog input signal (Vin) to a digital output signal (Vout), comprising an analog filter (20), which filters the analog input signal and has at least one integration capacitor (C1, C2, C3), a cycled quantifier (30) which quantifies the filtered analog signal output by the analog filter (20) for generating the digital output signal (Vout), and a feedback device (40) with at least one digital analog converter (42, 44), which supplies at least one analog feedback signal to the analog filter (20) on the basis of the digital output signal (Vout).

Abstract: The present invention is an multi stage noise shaping quantizer which includes: a first noise shaping quantizer that includes a first local quantizer which quantizes an input signal and a limiter which limits an output range of the first local quantizer, the first noise shaping quantizer performs noise shaping operation to the input signal; a second noise shaping quantizer that can input a first quantization error which occurs due to quantization operation at the first local quantizer and a limit error which occurs due to a limitation operation to the output range at the limiter as an input and performs noise shaping operation to the input; a differentiator that differentiates an output of the second noise shaping quantizer corresponding to a noise shaping order of the first noise shaping quantizer; an adder that adds an output of the differentiator to an output of the first noise shaping quantizer and output the resultant of the addition; and an amplitude controller that limits an amplitude of the limit erro

Abstract: A power amplifying apparatus includes a distributing unit that divides an input digital signal to a plurality of the input digital signals so as to distribute the input digital signals to a plurality of devices respectively, and a synthesizing unit that synthesizing output signals from the devices to output the synthesized output signal. Each of the devices includes a delay regulating unit that regulates a delay amount of the input digital signal, a digital/analog converting unit that converts the digital signal regulated by the delay regulating unit to an analog signal, and an amplifying unit that amplifies the analog signal to output the amplified analog signal to the synthesizing unit.

Abstract: Two reference generation circuits for D/A converter of the present invention generates a plurality of reference voltages characterized by voltage increments between two fixed reference voltages. These generated reference voltages greatly reduces unbalanced charge-injection errors that any fully differential architecture can not remove. The inaccuracy of D/A converters caused by the corrupted reference voltages is greatly minimized.

Abstract: An analog-to-digital converter has a resistor string that generates a series of voltages that are equally spaced in the middle range of the series and unequally spaced at the upper and lower ends. An upper selector selects voltages at the upper end. A lower selector selects voltages at the lower end. A pair of midrange selectors select a pair of adjacent voltages in the middle range. A midrange voltage generator generates further voltages equally spaced between the two selected midrange voltages. An output selector selects one of the further voltages. The selectors are controlled by various bits of a digital input signal. The voltage selected by the upper selector, lower selector, or output selector becomes an analog output signal. This analog-to-digital converter has comparatively few resistors and transistors and can generate accurate voltages for driving a gray-scale display.

Abstract: An alternate sampling integrator circuit is disclosed that can concurrently sample and integrate signals received at an input. The circuit may include multiple sampling capacitors, an operational amplifier, and multiple switches. The switches switch the capacitors between a sampling mode and an integration mode.

Abstract: A gate driver for a liquid crystal display includes a shift register including a plurality of stages for outputting gate drive signals. Each of the stages includes a pull-up circuit for providing the gate drive signal to an output terminal in response to first and second clock signals, a pull-down circuit for providing a gate off signal to the output terminal, a pull-up driving circuit for driving the pull-up circuit in response to a first control signal, and a pull-down driving circuit for driving the pull-down circuit in response to a second control signal. Each of the stages includes a plurality of switching devices. A node of nodes where a signal line, through which the first clock signal, the second clock signal, the first control signal or the second control signal is applied, is electrically connected to a switching device includes at least two contacts.

Abstract: A time-interleaved analog-to-digital converter stores in a correction information memory, correction information required to correct an error between signals output by a plurality of N analog-to-digital converters in advance. At this time, in order to enable acquisition of data required for a correction processing within a short period of time, a signal generator causes the plurality of N analog-to-digital converter to input a calibration signal including a plurality of signal components, each of which is positioned at a desired frequency in a bandwidth in which N/2 times of a sampling frequency Fs is defined as an upper limit, the signal components appearing in a bandwidth in which half times of the sampling clock frequency Fs is defined as an upper limit by sampling the analog-to-digital converters.

Abstract: According to one embodiment of the invention, a method for receiving a first signal in a first plurality of switching elements from a second plurality of switching elements, receiving a second signal in second plurality of switching elements from first plurality of switching elements, alternatively converting a first logic signal by first plurality of switching elements based on received first signal, and a second logic signal by the second plurality of switching elements based on received second signal. According to another embodiment of the invention, a system comprising a first plurality of switching elements to convert a first logic signal based on a predetermined input from a second plurality of switching elements, second plurality of switching elements to convert a second logic signal based on a predetermined input received from first plurality of switching elements; first and second plurality of switching elements to alternatively convert first and second logic signals.

Abstract: A switch control circuit turns on/off second and third switches, while turning off/on first and fourth switches, in a complementary manner in an integrator constituted by using a switched capacitor including the first to fourth switches and, where the first and fourth switches are turned off and the second and third switches are turned on, the switch control circuit turns on the second switch before turning off the fourth switch.

Abstract: A pulsed radar system uses phase noise compensation to reduce phase noise due to drift of the reference oscillator to enable detection of micro movements and particularly human motion such as walking, breathing or heartbeat. The noise level due to A/D sampling must be sufficiently low for the phase noise compensation to be effective. As this is currently beyond state-of-the-art for high bandwidth A/D converters used in traditional receiver design, the receiver is suitably reconfigured to use analog range gates and narrowband A/D sampling having sufficiently low noise level. As technology continues to improve, the phase compensation techniques may be directly applicable to the high bandwidth A/D samples in traditional receiver designs.

Abstract: Methods and apparatus for providing a tunable absorption-emission band in a wavelength selective device are disclosed. A device for selectively absorbing incident electromagnetic radiation includes an electrically conductive surface layer including an arrangement of multiple surface elements. The surface layer is disposed at a nonzero height above a continuous electrically conductive layer. An electrically isolating intermediate layer defines a first surface that is in communication with the electrically conductive surface layer. The continuous electrically conductive backing layer is provided in communication with a second surface of the electrically isolating intermediate layer. When combined with an infrared source, the wavelength selective device emits infrared radiation in at least one narrow band determined by a resonance of the device. In some embodiments, the device includes a control feature that allows the resonance to be selectively modified.

Abstract: There are provided an inter-vehicle distance detecting device and an inter-vehicle distance detecting method which can precisely measure an inter-vehicle distance from a user's own vehicle to a neighboring vehicle even if a radar becomes unable to detect the neighboring vehicle due to the influence of multipath or the like. If the radar does detect a neighboring vehicle, a width of the neighboring vehicle is calculated based on a precise inter-vehicle distance determined by the radar and a precise vehicle visual angle determined from an image taken by a camera, and is stored in a memory, and if the radar becomes unable to detect the neighboring vehicle, an inter-vehicle distance to the neighboring vehicle is calculated according to a trigonometric function based on the precise width of the neighboring vehicle previously stored in the memory and a precise vehicle visual angle determined from an image taken by the camera at this time.

Abstract: A radar apparatus having a interference detection unit which computes an average value of received power from received signals corresponding to receiving waves received by the receiving antennas, and determines that interference has occurred when the difference between this average value and the average value of the previously computed received power is a threshold value or more. Moreover, in other interference detection method, the interference detection unit determines that interference has occurred when an average value of received power corresponding to a large distance is a threshold value or more. Furthermore, in other method, the interference detection unit determines that interference has occurred when a received power value is detected as a threshold value or more when a transmission wave is not transmitted from the transmission antenna.

Abstract: The present invention provides a radar apparatus, which can diagnose failure at low cost with high accuracy, and a failure diagnosis method thereof. An antenna serves as both a transmit antenna and a receive antenna. A transmit and receive select switch switches the transmission and reception of the antenna. A control unit measures a power value based on an output signal of a receive wave received by the antennas, and judges that the transmit and receive select switch fails when this power value exceeds a threshold.

Abstract: A process is provided for accurate location determination in assisted satellite-based positioning systems in which a base station (server) transmits assisting information to the user's receiver (rover). Signals from at least 5 satellites are used for 3-dimensional positioning. Pseudorange measurements are made in a system of equations having a minimum set of unknowns X,Y,Z, and T. (X,Y,Z) is the 3D rover position in a predefined coordinate system, and T is the time at which simultaneous measurements are made to determine pseudoranges to all satellites. The position of each satellite is a vector-valued function fk (T) of said time T, where fk is determined from satellite ephemeris data or its equivalent, sent to the rover over a communication link, as well as from knowledge of the approximate position of the rover.

Abstract: Method and apparatus for receiving an estimate of time in a satellite signal receiver receives an estimate of time from a server and compensates for error of a clock in the satellite signal receiver using the estimate of time. The output of the compensated clock is used when computing a position of the satellite signal receiver. The estimate of time is received using a network time protocol (NTP), a simple network time protocol (SNTP), or by one-way broadcast from the server.

Abstract: The present disclosure provides various methods and devices for suppressing cross-correlation effects in positioning signals. When there is a power imbalance between a weaker positioning signal and an interfering positioning signal, and certain Doppler offsets exist, cross-correlation may make it difficult to acquire the weaker signal. However, a receiver may use the transmit signal spectrum of the interfering signal to identify frequency bins which contain a lower power for the transmitted interfering signal. The receiver then emphasizes the identified frequency bins in the detection of the desired positioning signal.

Abstract: A triplate-type planar array antenna is provided with an antenna circuit board (3) on which an antenna circuit including a plurality of radiating elements (5), which are vertically and horizontally arrayed in a two-dimensional manner, and feedlines (6) is formed; two pieces of dielectric substances (2a, 2b) between which the antenna circuit board (3) is sandwiched at the both sides; a ground conductor (1) laminated on one dielectric substance (2b); and a slot board (4) laminated on the other dielectric substance (2a). One or more slot openings (7) corresponding to the plurality of radiating elements (5) with a linear arrangement are formed on the slot board (4).

Abstract: A planar antenna with a short-trace applied to multi-band mobile handset electronic devices, the structure includes two main resonant elements that are bent around each other and the short-trace, the short-trace is connected between a feed-point and a ground-point; by influence of a loop surface current induced by the short-trace, the antenna gets a broadband effect at multi-frequencies.

Abstract: A radio frequency (RF) antenna containing element is provided. The RF antenna containing element includes a reinforced metal foil laminate antenna bonded to a carrier layer. The reinforced metal foil laminate antenna includes a metal foil layer bonded to a reinforcement layer. The reinforcement layer can mitigate tearing of the metal foil layer during formation of the antenna.

Abstract: A multi-band antenna with the broadband function is based upon a planar inverted-F antenna with two conductive arms and a ground. The two conductive arms extend from the ground near the two opposite ends of the ground. Two radiation plates of the two conductive arms extend toward each other. The multi-band antenna has a sufficient large band at high frequencies. Since the conductive arms are disposed close to the two ends of the ground, operations of bending the two conductive arms or soldering a feed wires are simpler and have a higher yield.

Abstract: An antenna component (and antenna) with a dielectric substrate and a plurality of radiating antenna elements on the surface of the substrate. In one embodiment, the plurality comprises two (2) elements, each of them covering one of the opposite heads and part of the upper surface of the device. The upper surface between the elements comprises a slot. The lower edge of one of the antenna elements is galvanically coupled to the antenna feed conductor on a circuit board, and at another point to the ground plane, while the lower edge of the opposite antenna element, or the parasitic element, is galvanically coupled only to the ground plane. The parasitic element obtains its feed through the electromagnetic coupling over the slot, and both elements resonate at the operating frequency. Omni-directionality is also achieved. Losses associated with the substrate are low due to the simple field image in the substrate.

Abstract: In a planar antenna, a plate member is adapted to be electrically grounded. A radiating electrode is opposing the plate member with a gap and extending parallel to the plate member. A feeding pin is disposed at a center part of the radiating electrode, and adapted to feed power to the radiating electrode. At least one pair of short pins is electrically connecting the plate member and an outer edge of the radiating electrode at symmetrical positions relative to the feeding pin. The radiating electrode is formed with blank portions which are located at such positions that are on hypothetical straight lines connecting the feeding pin and the short pins.

Abstract: An apparatus includes a discone antenna including a cone-shaped element whose physical shape is at least partially defined by at least one pleat.

Abstract: An earphone antenna is provided in which two pairs of audio/high-frequency signal lines respectively corresponding to left and right earphone units are connected to a balun. The left and right earphone units are connected to terminals of the two pairs of audio/high-frequency signal lines remote from the balun via loading coils, respectively. The terminals of the two pairs of audio/high-frequency signal lines remote from the balun are further connected to each other by a pair of conductive lines via audio blocking means. The earphone antenna having such a structure can eliminate high-frequency adverse effects on a wireless device transmitted from a human body via an earphone.

Abstract: An antenna structure is comprised of a body, an antenna element coupled with the body, and an arm support coupled with the body and the antenna element. The arm support also includes a recessed portion on one side adapted to receive a two-sided customizable plate. The customizable plate is made of a non-metallic material. The customizable plate is further adapted to fit within the recess and can be adhered to the recessed portion of the arm support. The customizable plate can also be graphically customized to display a viewable image. In addition, the customizable plate can be imprinted with a metallized pattern on the side that faces the recessed portion when seated in the arm support. The imprinted metallized pattern can beneficially affect the performance characteristics of the antenna element.

Abstract: Provided is a portable wireless apparatus having a reduced leakage current. The apparatus includes an antenna having an antenna ground plate on which is disposed an antenna element a circuit ground plate having a larger size than the antenna ground plate and included in a circuit substrate, and a connecting conductor connecting the antenna ground plate with the circuit ground plate.

Abstract: A vehicle 16 includes a vehicle body 30. A satellite antenna 18 is mounted within the vehicle body 30. A satellite transmissive panel 40 is coupled to the vehicle body 30 adjacent to the antenna 18. The satellite antenna may be mounted within the passenger compartment 20 or within the trunk 90 of the vehicle 16.

Abstract: A first antenna portion has a first board having a first face and a second face opposite to the first face, a first antenna element mounted on the first face, and a first electronic circuit mounted on the second face. A second antenna portion has a second board having a third face and a fourth face opposite to the third face, a second antenna element mounted on the third face, and a second electronic circuit mounted on the fourth face. A first conductive wall is provided on the base portion, defining a first shielding space in which the first electronic circuit is accommodated. A second conductive wall provided on the base portion, defining a second shielding space in which the second electronic circuit is accommodated.

Abstract: A wireless communication device includes an antenna for wireless communication with a remote interrogator. Several embodiments are disclosed to increase the options available to designers of wireless communication devices. In some embodiments, the antenna is a quarter wavelength long with one end of the antenna being grounded to provide desired impedance matching characteristics. The position of the ground plane relative to the antenna is also varied between embodiments. The connection from a wireless communication chip to the antenna is also varied between embodiments to provide alternate structures.

Abstract: The invention relates to an antenna system comprising a first type of antenna and second and third antennas of a second type. The first to third antennas are slots which are excited by longitudinal radiation and are placed on the same edge of the same substrate. The first antenna is placed between the second and third antennas. This system is particularly suitable for integration in a PCMCIA card.

Abstract: An antenna mounting device includes a housing having a chamber formed by an outer peripheral wall, a suction cup and a base casing received in the housing, the base casing includes a lower seat and an upper seat disposed on top of an outer peripheral fence, a ring member is rotatably engaged onto the base casing and includes a bottom actuator and a recessed actuator for engaging with the lower seat and the upper seat of the base casing and for adjusting the ring member up and down relative to the base casing when the ring member is rotated relative to the base casing. A cap is coupled to the central coupling member of the suction cup with a stem for actuating the suction cup.

Abstract: A vehicle information display apparatus in which an optimal display is achieved according to attributes, contents, and types of displayed information and preference of a user, and the like while constraining upsizing of an entire display area is provided. In a vehicle information display apparatus including a meter device (first display means) for displaying a first display image 17, a multi-display (second display means) 2 for displaying a second display image 24, and control means 110 for controlling the operation of the meter device 1 and the multi-display 2, and displaying the first and second display images 17, 24 in a predetermined display area 5, the control means 110 performs a changing/switching process for switching the display mode of the first display image 17 in association with the change of the display mode of the second display image 24 (enlargement and reduction of a display range 25).

Abstract: The color display device includes a colored light generation unit for repetitively generating a plurality of colored lights in a time sequence with a predetermined frequency, and an image generation unit for processing said plurality of colored lights, so as to generate an image corresponding to each of the plurality of colored lights generated in a time sequence. The said predetermined frequency is 180 Hz or more.