Abstract: A resonant amplifier is provided. A resonant inductor is connected in series between a source (emitter) of a common gate (base) transistor and an input point (i.e. output point of previous stage), and a resonant capacitor is connected between the input point and a ground or a voltage source connected to a loading end, such that a lossy resonant cavity is formed for carrying out resonance to amplify the signal. Then, the amplified signal is drawn out by the common gate (base) architecture. Therefore, the gain of the resonant amplifier can be boosted at desired frequency.

Abstract: A power amplifying device includes a stabilizing circuit between an input terminal and an amplifier. The stabilizing circuit has a first line, a second line, and a third line. The first line is connected to the ground. The length of the first line is equal to or longer than three fourths of the wavelength of the operating frequency.

Abstract: A stabilization circuit 100 which comprises: serial stabilization blocks 110, 120 connected in series, with respect to a signal to be amplified, with an amplification element; parallel stabilization blocks 130, 140 connected in parallel with the amplification element, with respect to a signal to be amplified; and a switch parts 150 capable of connecting and disconnecting said parallel stabilization block 140, with respect to a signal to be amplified.

Abstract: A radio-frequency amplifier having an input-side line portion and an output-side line portion including an input slot line and an output slot line extending in parallel formed on a substrate. In a connecting portion of a transistor, a gate electrode G, a drain electrode D, and source electrodes S are arranged in a coplanar manner. The gate electrode G, the drain electrode D, and the source electrodes S are connected to DC electrodes and a ground electrode, respectively, in a flip chip method via bumps, so that the orientation of the slot lines is perpendicular to the orientation of the gate electrode G and the drain electrode D. Preferably, the source electrodes S of the transistor are connected via an air bridge.

Abstract: In one embodiment, an output transistor and a bias compensation device are placed in proximity to each other on the same package substrate. The bias compensation device is electrically isolated but thermally coupled to the output transistor, and is configured to provide a output signal for adjusting bias to the output transistor.

Abstract: In one embodiment, apparatus is provided with current optimization logic, a programmable current source for generating a reference current threshold, and current programming logic. In response to a plurality of input pulses received by a first TIA, the current optimization logic produces a series of digitized current values in response to i) a signal correlated to an output of the first TIA, to ii) a reference signal to which the output of the first TIA is compared. The current programming logic i) programs the programmable current source using ones of the series of digitized current values, until a predetermined condition is met, and then ii) locks the programmable current source to a most recent one of the digitized current values. In response to the reference current threshold, a second TIA produces the reference signal.

Abstract: A voltage controlled oscillator includes a resonant circuit, a trimming capacitor and a full adder. The resonant circuit includes a negative resistor, an inductor and an oscillation frequency setting capacitor having a variable capacitance according to a controlled voltage based on a oscillation frequency data. The trimming capacitor is connected in parallel to the oscillation frequency setting capacitor. The trimming capacitor has capacitors each of which has a variable capacitance according to an input signal thereof. The full adder is connected to the trimming capacitor. The full adder generates the input signal based on frequency information and an automatic proofreading value received thereto.

Abstract: A tuning method and a tuning apparatus for tuning a filter are disclosed. The tuning method includes: configuring the filter as a VCO; utilizing the VCO to generate an oscillation signal according to a driving signal; comparing a frequency of the oscillation signal with a reference frequency to generate a comparison result; converting the comparison result into the driving signal in order to establish a feedback mechanism. Therefore, the inner components such as the gm and capacitance inside the VCO are completely tuned when the VCO generates an oscillation signal having a wanted frequency. Since the VCO is inside the filter and the components of the filter and the VCO are similar, the driving signal can be utilized to make the filter operate in a desired center frequency under a well-designed relationship between the frequency of the oscillation signal and the center frequency.

Abstract: Disclosed is a diagnostic resonant cavity for determining characteristics of a charged particle beam, such as an electron beam, produced in a charged particle accelerator. The cavity is based on resonant quadrupole-mode and higher order cavities. Enhanced shunt impedance in such cavities is obtained by the incorporation of a set of four or more electrically conductive rods extending inwardly from either one or both of the end walls of the cavity, so as to form capacitive gaps near the outer radius of the beam tube. For typical diagnostic cavity applications, a five-fold increase in shunt impedance can be obtained. In alternative embodiments the cavity may include either four or more opposing pairs of rods which extend coaxially toward one another from the opposite end walls of the cavity and are spaced from one another to form capacitative gaps; or the cavity may include a single set of individual rods that extend from one end wall to a point adjacent the opposing end wall.

Abstract: Disclosed is an oscillating device that includes an oscillating system having a plurality of oscillation movable elements, a plurality of elastically supporting portions connected to the oscillation movable elements, and a supporting member for supporting a predetermined portion of the plurality of resiliently supporting portions so that predetermined oscillation movable element or elements are resiliently supported for oscillation about a predetermined oscillation axis,. the device further including a driving circuit for driving the oscillating system and a temperature adjusting element for adjusting temperature of the resiliently supporting portions, wherein the oscillating system has a plurality of natural oscillation modes of different frequencies, and wherein the driving circuit functions to oscillate the predetermined movable element about the predetermined oscillation axis, in different natural oscillation modes simultaneously.

Abstract: A tunable oscillator includes a first transistor, a second transistor connected in parallel with the first transistor, a noise feedback and bias network coupled to the first and second transistors, a planar coupled resonator network coupled to the transistors and a means for dynamically tuning the resonant frequency of the planar coupled network and the junction capacitance of the transistors.

Abstract: A tapped delay chain comprises a plurality of delay cells where each cell has at least two output taps: a primary one for feeding forward a delayed signal to a next cell in the chain, and a secondary output tap for feeding a slightly-differently delayed signal to a multiplier unit so that the slightly-differently delayed signal can be multiplied by a weighting coefficient. The split of output taps in each delay cell allows for a corresponding split of loading capacitance. Each output tap of the delay cell is loaded by a smaller capacitance than it would have had to otherwise drive had the split taps been instead lumped together as a common node. The reduced loading capacitance at each of the split taps allows for a wider frequency response range.

Abstract: In one aspect, a signal path is described. The signal path has a nominal impedance over a specified bandwidth and interconnects a port of a microwave circuit package and a microwave component mounted in the microwave circuit package. The signal path includes an inductive transition and first and second capacitive structures. The inductive transition extends from a first point on the signal path to a second point on the signal path and has an excess impedance above the nominal impedance. The first and second capacitive structures respectively shunt the first and second points on the signal path to compensate the excess impedance of the inductive transition. The inductive transition and the first and second capacitive structures approximate a filter having an impedance substantially matching the nominal impedance over the specified bandwidth.

Abstract: RF switching system (100, 200) formed from a structure (102, 202) comprised of dielectric material. The structure can have two or more faces (104, 204), with at least one face located in a plane exclusive of at least a second one of the faces. For example, the structure can define a geometric shape that is a polyhedron. RF switches (106, 206) can be disposed on two or more of the faces. Conductive RF feed stubs (110, 210) are provided for each RF switch extending from an interconnection point (114, 214) to electrical contact terminals (116, 216) that are respectively connected to the RF switches. The interconnection point is located within the structure at a location generally medial to the two or more of terminals.

Abstract: A rectangular-to-circular mode combiner/divider is provided. In one aspect of the invention, a power combiner is provided that comprises a plurality of rectangular waveguide ports arranged in an integral arrangement. Each rectangular waveguide port is operative to operate in a rectangular mode. The power combiner is also includes a circular waveguide port operative to operate in a circular mode, and a transition body that couples the plurality of rectangular waveguide ports to the circular waveguide port. The transition body has an inner transition cavity and an outer body operative to convert radio frequency (RF) signals between the rectangular mode and the circular mode, and provide a combined output signal at the circular waveguide port from RF signals received at the plurality rectangular waveguide ports.

Abstract: A film bulk acoustic-wave resonator having, a substrate having a cavity, the substrate being formed of one of semi-insulating material and high-resistivity material, a bottom electrode partially fixed to the substrate, part of the bottom electrode is mechanically suspended above the cavity, a piezoelectric layer disposed on the bottom electrode, the shape of the piezoelectric layer is defined by a contour, a top electrode on the piezoelectric layer, a semiconductor intermediate electrode buried at and in a surface of the substrate, being located at the contour of the piezoelectric layer, the semiconductor region having a lower resistivity than the substrate, the intermediate electrode is connected to the bottom electrode in the inside of the contour, and a bottom electrode wiring connected to the semiconductor intermediate electrode extending from the contour to an outside of the contour in the plan view.

Abstract: A piezoelectric filter that includes a first substrate having at least one first piezoelectric resonator disposed on a main surface thereof; a second substrate having at least one second piezoelectric resonator disposed on a main surface thereof. A connection pattern extends around the first piezoelectric resonator and the second piezoelectric resonator and is disposed between the first substrate and the second substrate such that the main surface of the first substrate faces the main surface of the second substrate, and the first piezoelectric resonator is remote from the second piezoelectric resonator. A connecting layer bonds a pad disposed on the main surface of the first substrate to a pad disposed on the main surface of the second substrate, and is electrically connected to the first piezoelectric resonator and the second piezoelectric resonator.

Abstract: A dielectric resonator with an air (or other dielectric) gap axially interrupting the body of the resonator and circuits employing such resonators. Preferably, the resonator body is conical or a stepped cylinder. However, the invention also is workable with a straight-sided cylindrical resonator body.

Abstract: An RF MEMS switch and a method for fabricating the same are disclosed, in which the RF MEMS device is down driven at a low voltage using a piezoelectric effect. The RF MEMS switch includes a substrate provided with RF signal lines and a cavity, a cantilever positioned on the cavity, having one end fixed to the substrate, and a contact pad connecting the RF signal lines with the cantilever in contact with the RF signal lines when the cantilever is down driven.

Abstract: A MEMS switch has 1) a first contact, and 2) a second contact that is movable relative to the first contact. At least one of the contacts is electrically conductive and has a platinum-series based material.

Abstract: A low voltage circuit breaker includes an electronic trip and trip magnets. A trip magnet is controlled by an overload trip and a further trip magnet, such as a low voltage trip or a working current trip. The trip magnets are mounted on a rear face, facing away from the operating front of the electronic trip. In the same section of the operating field, display and reset devices are accessible to the user.

Abstract: Using MEMS device design and fabrication techniques, liquid metal inductors can be formed. Because of the common fabrication techniques, liquid metal inductors can be more easily integrated with certain MEMS microswitches.

Abstract: An inductor with a primary winding on a magnetic core that produces a primary magnetic field H1 with a current I1 has an electromagnetic field source that generates a secondary magnetic field H2 in the core that opposes the primary magnetic field H1 to produce a low net magnetic field HNET in the core to prevent magnetic saturation of the core.

Abstract: The multilayer circuit comprising a plurality of electrically conductive layers separated from each other by respective dielectric layers, wherein at least one variable inductor is provided that comprises: a conductive coil structure following a coil path in a single and thickest one of said conductive layers; two ports connected to said coil structure; and a switch arrangement comprising at least one switch for selectively connecting at least one of said ports to one of a plurality of specific positions of said coil structure along said coil path in said one of said conductive layers, thus providing for a corresponding selective inductance value of the variable inductor, between said two ports. The invention also relates to a method of manufacturing the circuit.

Abstract: An inductor includes a closed core, a magnetic medium and a coil. The magnetic medium covers at least a portion of the closed core. The coil winds around the closed core or the magnetic medium. A fabricating method of the inductor is also disclosed.

Abstract: A discharge lamp lighting apparatus for supplying high frequency high voltage to an excimer discharge lamp comprises a boasting transformer having a core, a secondary side coil and a pair of primary side coils; a DC power source; and switching elements, wherein a duty ratio of an electrically conductive period to an operational cycle of each of the switching elements is 30% or less, a turn ratio of the secondary side coil to each of the primary side coils is 25 or less, a difference between a first length of a first axial direction area where each of the primary side coils are wound, and a second length of a second axial direction area where the secondary side coil is wound, is 18% or less of the first length or the second length, and a leakage inductance associated with magnetic coupling between the primary side coils and the secondary coil is 0.2% to 0.7% of a primary side coil inductance.

Abstract: A switchable thermal circuit breaker (10) has an automatically resettable, current carrying thermostatic disc (14) cantilever mounted in a housing (12) and carries a movable contact (14b) into and out of electrical engagement with a stationary contact (14c). A disc coupling member (16) is pivotally mounted above the disc and has fingers (16e, 16f) to capture opposed sides of the disc so that the disc coupling member pivots concomitantly with movement of the disc. A radially extending blade (18c) of a pivot member is biased by a spring (18k) into engagement with a stop surface (16k) of the disc coupling member when the contacts are in the engaged position and is movable under the stop arm (16g) when the disc moves to the contacts disengaged position to prevent reengagement of the contacts.

Abstract: A multilayer PTC thermistor reliably decreases the resistance by decreasing the thickness of ceramic layers composed of a BaTiO3 semiconductor ceramic and achieves a resistance close to the resistance calculated from the multilayer structure. The thermistor is adjusted to satisfy the conditions 5?X?18 and 4?X·Y?10, wherein X is a thickness (?m) of each ceramic layer disposed between adjacent internal electrodes and Y is a donor content (%) in the barium titanate semiconductor ceramic constituting the ceramic layers, Y being expressed in terms of (number of donor atoms/number of Ti atoms)×100.

Abstract: An exemplary method for unlocking a wireless communications device comprises entering a backdoor screen, prompting input of a backdoor code, receiving the backdoor code, comparing the received backdoor code to a service validation code, and resetting an unlock code of the wireless communications device if the received backdoor code matches the service validation code. The service validation code may be, for example, a one time subsidy lock code, an operator master subsidy lock code, another service programming code or any other stored code not generally known to the user. The method may further comprise unlocking the wireless communications device if the received backdoor code matches the service validation code.

Abstract: An interactively authorizing access control method applicable to an access control center is disclosed. According to the present invention, an effective time interval can be set for the permit by an authorized person of the object according to his/her usual pass time such that when the access control center identifies the permit is valid, the effectiveness of the permit can be further determined according to the effective time interval set by the authorized person, thereby determining whether the object is allowed to pass.

Abstract: A personal identification system employs a matrix of pressure sensors mounted to a plate having a template of a human hand. When a person's hand is placed on the plate and overlying the template a pressure profile of the person's hand is provided. This profile is compared with a stored pressure profile of the same person's hand. If the pressure points or profiles correlate a positive identification of the person is made.

Abstract: A locking cylinder is proposed for installation in a lock, with a locking element for actuating a lock bolt or the like, and an actuating element, preferably a knob, wherein the actuating element is normally disengaged from the locking element, and with a coupling for connecting the locking element to the actuating element after receiving an identification code from an associated transponder. An electromechanical converter is associated with the actuating element, which converter converts an actuation of the actuating element into electrical energy which is used to support the wireless communication with the transponder and/or the engaging of the coupling when a valid identification signal is received.

Abstract: An occupant approach detection apparatus which includes: a transmitting device individually transmitting transmission request signals from transmitting antennas provided to doors of a vehicle; a receiving device receiving a response signal returned, as a response to one of the transmission request signals, from a portable unit; and a controller detecting an approach of a vehicle occupant carrying the portable unit based on the response signal. Each of the transmission request signals includes identification information for identifying corresponding one of the transmitting antennas or one of the doors. The response signal includes identification information corresponding to the identification information included in the transmission request signal. The controller determines which of the plurality of doors is approached by the vehicle occupant carrying the portable unit on the basis of the identification information included in the response signal.

Abstract: A vehicle door opening/closing apparatus includes a mobile apparatus carried by a user, a recognizing apparatus for recognizing the mobile apparatus within a predetermined area relative to a vehicle, a commanding apparatus provided at the mobile apparatus for commanding an opening/closing operation of a door on the basis of an intention of the user and a controlling apparatus for controlling the door on the basis of a recognition of the recognizing apparatus and the opening/closing operation command of the commanding apparatus. The controlling apparatus opens the door when the recognizing apparatus recognizes the mobile apparatus within the predetermined area and in a situation where the commanding apparatus has commanded to open the door. The controlling apparatus closes the door when the recognizing apparatus recognizes that the mobile apparatus is out of the predetermined area and in a situation where the commanding apparatus has commanded to close the door.

Abstract: The invention is a system that provides a means to open and close a lock using a security key algorithm. The security key algorithm, is a method, that uses location based and time based data to create a unique security key. Once the security key is created, the security key algorithm monitors the security key system's location and opens and closes the lock according to the security key's parameters. The security key device is an object, such as a security container, wherein the security key system is integrated within or is removably attached thereto.

Abstract: A radio frequency identification (RFID) system includes a plurality of RFID tags addressable by a tag reader, with each tag comprising a RF antenna, an integrated circuit including a memory for identification data and coupled to the antenna, the integrated circuit being configured to have a first antenna load impedance when accessed by the tag reader and a second higher load impedance after access by tag reader whereby the tag switches to a low scattering state for a finite period of time to reduce scattering of signals from the tag reader.

Abstract: An image processing system for identifying car thieves is set in a car and comprises a device to take clear and full-faced images of a criminal without the criminal's knowledge. The image processing system for identifying car thieves comprises a dashboard panel (10) being provided in front of the driver's seat, a candid camera (30) being provided behind the dashboard panel (10), and an infrared light projector (35) to emit infrared light toward the driver's seat. The system also includes a hole (H) provided at a specific point on the dashboard panel (10), the candid camera 30 being set behind the hole (H) facing the driver's seat, and the hole (H) being covered with a half-transparent protectively-colored cover (25), with infrared transparency of the similar or same color as that of the surface color of the dashboard panel (10).

Abstract: A vehicle anti-theft method for use in a vehicle having an internal combustion engine, an ignition, a starter, fuel injectors, a memory, engine controller, and a real clock time function in the engine controller, said engine controller being configured to operate the engine in a plurality of different modes including a theft protection mode, the method comprising;

Abstract: Methods and systems provide for controlling a vehicle in conjunction with geospatial awareness. Vehicle locations are tracked and analyzed for compliance with rule sets corresponding to maintaining minimum or maximum distances from specific geographic locations or routes. A speed control command is issued to a vehicle upon violation of a rule. Speed control commands include speed reduction commands, vehicle shutdown commands, and combinations of speed reduction and vehicle shutdown commands.

Abstract: An ultrasound sensor for a vehicle has a housing which is fixedly arranged at a vehicle inner side of a periphery member of the vehicle, an ultrasound vibrator for sending and receiving ultrasound, and an ultrasound transferring member which is constructed of a different material from that of the housing to have an acoustic impedance with a medium value between an acoustic impedance of the ultrasound vibrator and that of the periphery member. The ultrasound vibrator is accommodated in the housing and fixed to an end portion of the housing, which faces the periphery member. The ultrasound transferring member is arranged at the end portion of the housing, and contacts both the ultrasound vibrator and the periphery member of the vehicle.

Abstract: A multi-sensor network having a plurality of receivers and sensors connected to a common communication line is provided. A controller will activate one of the plurality of receivers, thereby allowing one of the plurality of sensors to transmit data to the communication line. The plurality of sensors each individually have a logic device preventing more than one sensor from transmitting data in a given time interval.

Abstract: A collision detection system includes a shock detecting device, a collision position detecting device, a correcting device, and a collision determining device. The shock detecting device detects a magnitude of a shock due to a collision. The collision position detecting device detects a collision position of the collision. The correcting device corrects a detection result detected by the shock detecting device based on a detection result detected by the collision position detecting device. The collision determining device determines the collision based on a corrected result corrected by the correcting device.

Abstract: A method and an apparatus for driver assistance, in which a distinction is made, with the aid of operating variables and a classifier, between an intentional and unintentional lane change by the vehicle.

Abstract: ARRANGEMENT INTRODUCED IN A HIDDEN RECEIVER-SENDER DELIMITER FOR PNEUMATICS AND SIMILARS, especially a constructive arrangement allowing the use of a transponder (device to send and receive radio frequency signals) in aggressive means, be them chemical, mechanical or others, with no losses which may cause damage to said transponder; the conventional transponder (T) for emission and reception of radio frequency signals (RF) composed by a chip (1) and a coil reel (2); the transponder (T), with its new features, may be used, with no prejudice to its features, in aggressive chemical or mechanical means; the transponder (T) receives two protections: the first one by covering the transponder set (T) with a plastic film (F); the second protection is the introduction of said transponder (T), already with the first protection, inside a capsule (3) with special features, made of transparent material to electromagnetic waves and appropriate to resist against different mechanical efforts, be them twisting, flexion, tract

Abstract: When a CPU judges that a vehicle is stopped, a display image surrounded by a separator is displayed in such a first quality that a driver can watch while the display image is moving from a first display area to a second display area, and the motor is driven in a relatively low first speed to move the separator. When the CPU judges that the vehicle is running, the separator is rapidly moved and data about the vehicle such as warning is rapidly displayed.

Abstract: A monitoring receiver for transmitting to a remote receiving device a notification message based upon an alert triggering event and a method of configuring the monitoring receiver to transmit the notification message are disclosed.

Abstract: A system and method for providing security to at least one mass transit vehicle is disclosed wherein a memory at the at least one mass transit vehicle is used for storing a plurality of digital images that are provided from at least one camera. Upon detection of an alarm signal at the at least one mass transit vehicle at least a portion of the plurality of digital images are transmitted from the mass transit vehicle to a remote monitoring site responsive to the alarm signal.

Abstract: A status information determining and outputting means updates the oldest data stored in a memory using a captured A/D value, finds a average value of six stored data items by calculation, and stores the calculated value in the memory as a current sensitivity. A status information transmitting means determines which grade of sensitivity level within a sensitivity tolerance range the current sensitivity data matches, sets a pulse spacing corresponding to the matched grade of sensitivity level, and make two pulses emit from a sensitivity data transmitting light-emitting element using the set pulse spacing.

Abstract: A notification appliance and an alarm system are provided. The notification appliance comprises an alarm indicator and a control module, which is configured to perform notification applications by turning on/off the alarm indicator. The control module receives at least one of command instructions and notification signals, and directs the operation of the alarm indicator based on the command instructions and notification signals. The power condition of the notification appliance within the alarm system may be determined by comparing the notification signal and a predefined operating range for the notification signal. A fault indicator indicates a relationship between the notification signal and the predefined operating range.

Abstract: A supplemental alerting system for a fire alarm system comprises an alarm control device and a power line notification appliance (PLNA). The alarm control device generates a fire alarm code signal based on detecting a fire alarm mode signal transmitted from a fire alarm system. The PLNA generates at least one of a PLNA audible and PLNA visual fire alarm based on the fire alarm code signal.