Abstract: There is provided a filter including a first resonator, a second resonator in which an excitation efficiency is reduced more than the first resonator, and an inductor connected in parallel with the second resonator.

Abstract: A duplexer includes a first filter connected to a common terminal, a second filter connected to the common terminal, an additional inductor connected between at least one of the first and second filters and ground, a matching-use inductor connected between the common terminal and the ground, and a capacitor connected between the common terminal and at least one of the first and second filters.

Abstract: A MEMS acoustic filter has a MEMS resonator and at least two acoustic I/O ports to alter an input acoustic signal to an output acoustic signal. The first I/O port is adapted for interfacing with a medium, and the second I/O port for passing an acoustic signal to an acoustic transducer. Multiple MEMS resonators may be stacked to form a high order acoustic filter. An array of MEMS acoustic filters may be designed to function as an acoustic lens. The MEMS acoustic filter is particularly useful with an ultrasonic transducer, such as PZT and MUT. Fabrication methods to make the same are also disclosed.

Abstract: A micromechanical resonator having a structure defining a first mode and a second mode and permitting non-linear internal resonance between the first and second modes. The resonator may further include a first component embodying a first mode and a second component embodying a second mode such that the first and second modes are substantially completely non-linearly coupled with each other while the second component vibrates at a frequency approximately twice the at least one first natural resonance frequency.

Abstract: Micromechanical structures having at least one lateral capacitive transducer gap filled with a dielectric and method of making same are provided. VHF and UHF MEMS-based vibrating micromechanical resonators filled with new solid dielectric capacitive transducer gaps to replace previously used air gaps have been demonstrated at 160 MHz, with Q's˜20,200 on par with those of air-gap resonators, and motional resistances (Rx's) more than 8× smaller at similar frequencies and bias conditions. This degree of motional resistance reduction comes about via not only the higher dielectric constant provided by a solid-filled electrode-to-resonator gap, but also by the ability to achieve smaller solid gaps than air gaps. These advantages with the right dielectric material may now allow capacitively-transduced resonators to match to the 50-377? impedances expected by off-chip components (e.g., antennas) in many wireless applications without the need for high voltages.

Abstract: A surface acoustic wave (SAW) resonator, including: a first interdigital transducer composed of a pair of interdigital electrodes provided in a propagation direction of a surface acoustic wave; a second interdigital transducer composed of a pair of interdigital electrodes provided in parallel to the first interdigital transducer; and a switch that alternately switches the pair of interdigital electrodes of the first interdigital transducer and the pair of interdigital electrodes of the second interdigital transducer; wherein 7??B?33? where ? is a wavelength of a surface acoustic wave, and B is an addition of a width a1 of an engaged section of electrode fingers of the first interdigital transducer, a width a2 of an engaged section of electrode fingers of the second interdigital transducer, and a distance b between the engaged sections of both interdigital transducers.

Abstract: A surface acoustic wave apparatus has a configuration by which the spurious of the higher-order transverse modes is suppressed and a SAW excitation intensity distribution is not changed in the propagation direction. The surface acoustic wave apparatus has at least one interdigital transducer; a region with the plurality of interleaved comb-shaped electrodes is formed with two regions which are a first overlapping region and a second overlapping region with overlapping-lengths weighted along a propagation direction of a surface acoustic wave; the first overlapping region and the second overlapping region are in contact or overlapped in a direction vertical to the propagation direction of the surface acoustic wave; and in either the first or the second overlapping region, an overlapping-length weighting envelope curve has at least two or more changing points in the propagation direction of the surface acoustic wave.

Abstract: A device for generating a particle beam includes a particle source, and a structure having a first section and a second section, the first section coupled to the particle source, the first section having a first power input, and the second section having a second power input, wherein the first section is configured to produce a particle beam having a first energy E1, and the second section is configured to increase or decrease the first energy E1 by an amount E2, the absolute value of E2 being less than E1.

Abstract: A planar dielectric line having a first slot sandwiched between first and second electrodes is provided on a surface of a dielectric substrate. A second slot is positioned so as to face the first slot and is sandwiched between third and fourth electrodes on the rear face of the dielectric substrate. The width of the first slot is narrower than the width of the second slot so that the electromagnetic field energy of a high-frequency signal is concentrated in the first slot.

Abstract: An electrical switching device is disclosed which can be used in combination with a line, motor or fault-current circuit breaker, with a thermal release, with an electromagnetic release, with a switching mechanism with a latching point and at least one contact point which is continuously opened or closed by the switching mechanism, with an operating handle which is connected to one end of a lug by a coupling element and the other end of which is coupled to a contact base carrying the moving contact member, and with a latching lever which, together with a release lever, forms the latching point. The contact base for the moving contact member is located between the thermal release and the electromagnetic release. Together with a rotatably supported release lever interacting with the electromagnetic release and the thermal release, the latching lever forms the latching point.

Abstract: An electrical switchgear is disclosed, such as a line, motor or fault-current circuit breaker, with a thermal trip, with an electromagnetic trip, with a switching mechanism with a latching point and at least one contact point which is continuously opened or closed by means of the switching mechanism, with an operating handle which is connected to one end of a lug by means of a coupling element and the other end of which is coupled to a contact base carrying the moving contact member, and with a latch lever which, together with a trip lever, forms the latching point. The contact base for the moving contact member is located between the thermal trip and the electromagnetic trip. Together with a rotatably supported trip lever interacting with the electromagnetic trip and the thermal trip, the latch lever forms the latching point.

Abstract: The invention relates to a power breaker for switching electrical loads having a parallelepipedal shape having four longitudinal sides lying in the longitudinal direction (LQ) of the parallelepiped, a first transverse side and an opposing second transverse side, an electromagnetic coil having a longitudinal axis (LS), an input connection, an output connection, and a moving contact path that is electrically connected to the input connection or the output connection. The invention also relates to power supply assembly arrangement for switching an electrical current between an external power supply line and at least one load where the moving contact path and the coil are arranged longitudinally parallel to one another in the longitudinal direction (LQ) of the parallelepipedal shape.

Abstract: In an active vibration isolation support system, a movable member is connected to an armature (movable core) of an actuator and moved out and back by the armature, the armature is housed in a sealed space, and a pressure of the sealed space is maintained at substantially atmospheric pressure by a flexible bag that is disposed within the sealed space and communicates with the atmosphere via a through hole formed in a wall defining the sealed space. Therefore, while preventing dust and water from entering the sealed space to prevent malfunction of the armature, a change of pressure is prevented in the sealed space to maintain a neutral position of the movable member, thereby controlling vibration of the movable member with a good precision.

Abstract: A sheet magnetizer system and a method thereof includes a first set of one or more magnetized elements which are mounted on a first shaft for rotational movement and a second set of one or more magnetized elements which are mounted on a second shaft for rotational movement. One or more of the first set of magnetized elements are in an offset configuration with one or more of the second set of magnetized elements.

Abstract: The present invention relates to a magnet-shunted system for shielding a target from magnetic fields and waves. More particularly, the present invention relates to a magnet system including a path member and a magnet member having a magnet at least partially shielded by a magnetically permeable shunt member. The path member forms a path through which the extrinsic magnetic fields and waves bypass the target, the magnet member serves as a termination point for the magnetic fields or waves, and the shunt member defines another path through which primary magnetic fields generated by the magnet member are confined very close to the shunt and/or magnet members. The present invention relates to various methods of forming the termination point, eliminating the extrinsic magnetic fields or waves by the magnet, and disposing the magnet member into the path member.

Abstract: A bogie apparatus includes a chassis, rotation bogie parts respectively disposed at both ends of the chassis, and a composite motion bogie part located at a middle portion of the chassis. Each of said rotation bogie parts includes a circular upper inner ring permanent magnet fixed on a lower surface or a bottom surface of the chassis. A first bogie located under the chassis and having a bogie body is also added. A circular lower inner ring permanent magnet disposed on an upper surface or a top surface of the bogie body of the first bogie may be included. The inner ring may have inner and outer diameters substantially identical to those of the upper inner ring permanent magnet, and aligned with the upper inner ring permanent with a predetermined distance therebetween.

Abstract: An object of the invention is to provide a PCB transformer having plural output channels, which can suppress a voltage fluctuation in each output channel to supply a stable output without the need for a larger body, even though an input load fluctuates. The PCB transformer include, a core having a core axis, a first layer including a winding for each input line separately wound around said core as plural input coils spaced from each other along the core axis, and a second layer including a winding for an output line corresponding to each output channel separately wound on said first layer as plural output coils spaced from each other along the core axis. One of the input coils and one of the output coils are disposed in one of winding regions defined along the core axis. In each the winding region, one coil having a narrower width of the input coil or the output coil is disposed within a width of another coil along said core axis.

Abstract: A transformer. The transformer includes a first conductor plate, a second conductor plate, a plate positioning member, an insulated wire, and a magnetic core. The second conductor plate is spaced apart from and electrically connected to the first conductor plate. The plate positioning member is in contact with and surrounded by the first and second conductor plates. The insulated wire is wound around the plate positioning member and between the first and second conductor plates. The magnetic core includes a portion surrounded by the plate positioning member, the first conductor plate, the second conductor plate, and the insulated wire.

Abstract: A voltage-controlled semiconductor inductor and method is provided. According to various embodiments, the voltage-controlled inductor includes a conductor configured with a number of inductive coils. The inductor also includes a semiconductor material having a contact with at least a portion of at least one of the coils. The semiconductor material is doped to form a diode with a first doped region of first conductivity type, a second doped region of second conductivity type, and a depletion region. A voltage across the diode changes lengths of the first doped region, the second doped region and the depletion region, and adjacent coils in contact with at least one of the doped regions are electrically shorted, thereby varying the inductance of the inductor. In various embodiments, the inductor is electrically connected to a resistor and a capacitor to provide a tunable RLC circuit. Other aspects and embodiments are provided herein.

Abstract: A coil apparatus having a divided winding conformation and a manufacturing method of the coil apparatus which can prevent a winding from collapsing while achieving a reduction in size of a core and simplification of a structure. A coil apparatus includes a ferrite core and a coil provided around the core. The coil includes at least a first coil portion and a second coil portion, and a boundary end surface of the first coil portion on the second coil portion side is inclined in such a manner that its inner peripheral side is closer to the second coil portion than its outer peripheral side. Further, a boundary end surface of the second coil portion on the first coil portion side is inclined in such a manner that its outer peripheral side is closer to the first coil portion than its inner peripheral side.

Abstract: An inverse phase converter includes a first bobbin, a plurality of second bobbins, a first magnetic core and a second magnetic core. The first magnetic core and the second magnetic cores are overlapped and coupled to form at least one closed magnetic path. The first bobbin has a wire gathering portion to allow a primary coil to be wound horizontally to increase the winding space thereof. The winding direction of the primary coil is normal to the winding direction of a secondary coil wound on the second bobbin. The temperature generated by the primary coil is lower, and the length of the magnetic cores may be shortened.

Abstract: An electromagnetic apparatus includes: (a) A magnetic material arranged in a core structure establishing a first flux path set and a second flux path set; the first flux path set includes a first middle flux path oriented about a first axis and two first side flux paths parallel with the first axis; the second flux path set includes a second middle flux path oriented about a second axis and two second side flux paths parallel with the second axis; the second axis is perpendicular with the first axis. The first and second flux path sets cooperate to establish open spaces. Each open space is bounded by portions of two flux paths from each of the first and second flux path sets. (b) A plurality of windings for conducting electrical current about the magnetic core structure. The windings are oriented around one axis on both sides of the other axis.

Abstract: An ignition coil for an internal combustion engine includes a core assembly. The core assembly has a magnetically active core made of sheet-metal strips, a damping element and a sheath surrounding the core and the damping element. Different ways are described for improving the discharge of air trapped in the core assembly during casting of the ignition coil. For example, the damping element is designed with a V-shaped incision or a semipermeable diaphragm.

Abstract: A fuse holder for an electrical fuse includes a first housing portion which has first and second electrical terminals disposed therein. A second housing portion is pivotally attached to the first housing portion, and is configured to carry the electrical fuse. Pivoting the first and second housing portions together automatically and sequentially connects the fuse carried by the second housing portion to the terminals disposed within the first housing portion. This provides a convenient mechanism for connecting and disconnecting the fuse, and facilitates the use of a fuse without its own insulating material.

Abstract: An electrical distribution device that includes a terminal for providing a connection to a first conductor, a spring mechanism having a first end that is electrically connected to the terminal, and a second conductor electrically connected to one or more internal components of the device. The spring mechanism has a first condition and a second condition. In the first condition, the second end is electrically connected to the second conductor by solder. When the solder melts, the spring mechanism moves from to the second condition in which the second end is no longer electrically connected to the second conductor, thereby protecting the internal components from the fault condition that lead to the overheating. A condition indicator may also be provided for indicating a fault condition.

Abstract: A temperature sensor control apparatus includes a reference potential section, a driving potential section set to a driving electric potential, a temperature sensor configured to vary a resistance in accordance with a temperature, and disposed between the reference potential section and the driving potential section, a conduction path, two reference resistance elements each connected in series with the temperature sensor, a potential controlled point disposed in the conduction path between the reference resistance elements, a potential setting section configured to set an electric potential of the potential controlled point to the driving electric potential; and a resistance switching control section configured to control the potential setting section to switch the electric potential of the potential controlled point, and to switch each of the reference resistance elements to one of an energized state and a deenergized state.

Abstract: An object is to provide a PTC element capable of preventing lead terminals from delaminating from an element body. This PTC element 1 is a PTC element comprising an element body 10 in which an electroconductive filler is dispersed in a crystalline polymer, and a pair of terminal electrodes 12, 14 thermocompression-bonded with the element body 10 in between, wherein each of the pair of terminal electrodes 12, 14 has an overlapping region 121, 141 overlapping with the element body 10, and a nonoverlapping region 122, 142 not overlapping with the element body 10, and wherein the nonoverlapping region 122, 142 of each of the pair of terminal electrodes 12, 14 is constructed of a succession of a wide portion 122a a width of which is large across a direction in which the terminal electrode 12, 14 extends from the element body 10, and a narrow portion 122b a width of which is smaller than the width of the wide portion 122a.

Abstract: A method for forming a thin film resistor includes forming a topographic feature on a semiconductor substrate, forming an isolation layer over the topographic feature, and forming a resistor film layer over the isolation layer.

Abstract: An electrical control system.

Abstract: In various embodiments, the present invention provides a keyless management system for automating selective access to a lockable device and a method for selectively granting access.

Abstract: The present invention is directed toward secure access systems. Specifically, a method and system is provided that allows a control panel of a secure access system to verify the authenticity and fidelity of a reader within the secure access system by utilizing a rolling code agreed upon by the reader and the control panel.

Abstract: A car security device designed to verify the driver's identity, ensure that the driver is insured, and communicate with police forces to check that the driver has no warrants before an individual is allowed to operate a vehicle. In the event of a high-speed pursuit, the car security device will control the speed of the vehicle.

Abstract: In an admittance management system, an admission ticket to a security area is issued, biometric information of a person who has performed an issuing procedure of the admission ticket is acquired as first biometric information, biometric information of a person who has approached a gate provided at an entrance to the security area is acquired as second biometric information, a judgment is made upon whether the biometric information of the person who has approached the gate and the biometric information of the person who has performed the issuing procedure of the admission ticket do not correspond to the same person, and the person is allowed to pass through the gate when it is determined that the biometric information of the person who has approached the gate and the biometric information of the person who has performed the issuing procedure of the admission ticket correspond to the same person.

Abstract: A system and method for receiving signals from a tire pressure monitoring (TPM) system, a remote keyless entry (RKE) system, and a passive entry system in a manner that reduces the occurrence of signal interference includes transmitting at least a first signal to a receiver on the vehicle. The receiver is configured to have multiple channels for receiving the TPM signal, the RKE signal and/or the passive entry signal. The method also includes receiving the first signal on a first receiver channel. The method further includes selecting a second receiver channel for receiving at least a second signal when the second signal is or will be generated.

Abstract: An operator system and related methods for automatically controlling access barriers including a controller associated with at least one access barrier and a transceiver associated with the controller for transmitting and receiving operational signals. The system also includes at least one proximity device capable of communicating operational signals with the transceiver based upon a position of the proximity device with respect to the barrier and/or the operational status of a vehicle carrying the proximity device, wherein the controller monitors the operational signals and controls the position of the access barrier based upon the operation signals. Such a system allows for hands-free operation of the access barrier.

Abstract: The invention relates to a radio frequency (RF) system and method for improving the detection efficiency of an identification system including a transponder and a reader. The system (1) comprises an interrogator reader device (3) having an interrogator coil antenna (4) and a transponder (2) having a transponder coil antenna (5) and a microchip (6) Advantageously, the interrogator reader device (3) comprises a detection portion (11) including a sensitive signal gain detector (SSGN) for detecting just the presence of the transponder coil antenna (5) in case of misplacement of the transponder or broken link between the transponder coil antenna (5) and the microchip (6). The invention allows remedying to those potentially dangerous situations that might lead to a misdetection of the transponder (2).

Abstract: An RFID tag device, which includes an analog/digital conversion circuit converting a size of a signal received via an antenna from an analog format to a digital format, and a transmission circuit transmitting the signal in digital format or the signal based on the signal in digital format via the antenna, is provided. Besides, an RFID reader/writer device, which includes a transmission circuit transmitting a signal via an antenna, and a conversion circuit receiving a signal representing a size of the transmitted signal via the antenna, and converting into distance information based on the received signal, is provided.

Abstract: A system and method generate an extended memory RFID tag by reading data from a memory of a plurality of RFID tags, each including tag identification information stored thereon. The data is combined, in accordance with the tag identification information stored on at least one of the RFID tags, to generate the extended memory RFID tag. Sequencing indicia may be stored in memory in each of a plurality of RFID tags to allow the data to be combined, in accordance with the sequencing indicia.

Abstract: Radio frequency identification (RFID) tags selected for inventorying using combination of preselect and/or post select criteria. The selection commands can be for selecting according to a tag memory content, by invoking the mask address or by comparing other tag characteristics. Selection criteria can be determined locally at a modem block of a reader or provided to the modem block by higher layers of the reader. Tags meeting the selection criteria are reported to the higher layers for further actions. Some tags may be held while waiting for instructions from the higher layer block(s).

Abstract: A system for identifying radio-frequency identification (RFID) devices is described. In one embodiment, RFID devices include an antenna and metallic pattern printed on a substrate. A probing platform is used to radiate the RFID devices with an electromagnetic signal (e.g., radio-frequency signal, microwave signal, etc.). Each RFID device generates a quantifiable backscatter depending on the unique impedance of the passive RFID device in response to the electromagnetic signal. The backscatter is employed to uniquely identify the passive RFID device's impendence with respect to the probing platform uniquely characterized at predetermined frequencies of the electromagnetic signal.

Abstract: A decoupled RFID reader for reading an RFID tag using a single interrogator and a plurality of reader modules. The interrogator transmits an RF signal to supply power for the tag, and also sends commands to the tag. One of the reader modules communicates with the tag to trigger the tag to transmit a tag response including tag identification data. The first one of the reader modules receives the tag response and communicates the tag identification data of the tag to all of the other reader modules.

Abstract: RFID tags include circuitry operable to receive an input signal from a common transceiver and generate at least first and second signals, a first signal adapted to transmit information to the common transceiver and a second signal adapted to transmit information to adjacent RFID tags. The second adapted signal is received by the adjacent RFID tags and used to control their operation wherein they are temporarily disabled. During the time that the adjacent RFID tags are disabled, the first RFID tag communicates with the common transceiver via the first signal. When communication is complete the first RFID tags temporarily disable themselves allowing the adjacent RFID tags to be enabled and communicate with the common transceiver. In this manner only limited numbers of RFID tags are transmitting at one time thereby limiting the amount of RF power impinging upon the common transceiver.

Abstract: An interrogator autonomously reduces interference of receiving radio waves in a wireless tag. The interrogator transmitting and receiving a signal to and from a wireless tag, comprises a carrier sense unit detecting an idle channel in a plurality of channels used for communications with the wireless tags, a transmitting unit transmitting the signal to the wireless tag by use of the detected idle channel, an abnormality detecting unit detecting communication abnormality in the communications with the wireless tag, and a control unit controlling so as to interrupt, when detecting the communication abnormality, the transmission to the wireless tag, re-detect an idle channel after an elapse of a predetermined transmission halt period, and resume the signal transmission to the wireless tag by using the re-detected idle channel.

Abstract: In accordance with the teachings of the present invention, an electronic transmission device for the activation of electronic article surveillance systems is provided. In a particular embodiment, an electronic frequency transmitter includes an electronic transmitter producing a frequency of 58 KHz synchronized at the proper level and repetition rate, a receiving coil to convert electro-magnetic pulses to DC current, a transmitter antenna, and a deactivation circuit.

Abstract: In accordance with the teachings of the present invention, an electronic radio frequency identification transceiver device activated by radiant means is provided. In a particular embodiment an electronic frequency transmitter includes an electronic frequency transmitter with capability to adjust frequency carrier, an electronic frequency transmitter capable of transmitting programmed data bits or bytes, an electronic frequency transmitter capable of receiving data bits or bytes of programmable information, a receiving coil to convert electro-magnetic or radio frequency radiant to electrical current, a transmitter antenna, a receiving antenna, and a programmable input port.

Abstract: An RFID system (100) includes an RFID privacy protection device (126) that keeps track of RFID tags possessed by a user, senses nearby RFID scanners (110, 112, 124) and limits the communication between the nearby RFID scanners and the RFID tags to what is necessary to accomplish the function of the RFID system by selectively generating a masking signal.

Abstract: A fire-alarm control panel uses a transforming unit together with indoor power line for a fire alarm; and a signal for the fire alarm is transferred to another fire-alarm control panel in another place.

Abstract: A gift-wrapping envelope including: a face panel; a back panel integrally coupled with the face panel; an expandable side panel coupled to both the face and back panels; an enclosure panel integrally coupled to the face, back, or side panels and releasably couplable to one of the panels to which it is not integrally coupled; a nametag area; and a releasably couplable accessory area. The gift-wrapping envelope may include an audio label. The nametag panel may be erasably writable. The releasably couplable accessory area may include a release liner and/or a no-rip material. The expandable side panel may include accordion-type folds.

Abstract: A wireless door chime system has an activation unit. A receiving unit is in wireless communication with the activation unit. The receiving unit has a plurality of sound files loaded therein. A user can view the plurality of sound files and select a sound file to play when the activation unit sends a signal to the receiving unit.

Abstract: A rearview mirror having an alarm used in a car is disclosed. The rearview mirror comprises a mirror case and a lens. The burglarproofing alarm is disposed in the rearview mirror integrated together with the rearview mirror since a sensor device and an alarm-raising device are communicatively connected to a central control circuit in the mirror case.