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1
US20040263284A1
Publication/Patent Number: US20040263284A1
Publication date: 2004-12-30
Application number: 10/731,021
Filing date: 2003-12-10
Assignee: EMC Inc.
Abstract: A noise filter of the present invention includes an inductor and a resistor connected in parallel with each other. A power supply frequency current does not pass the resistor but passes through the inductor with no loss. On the other hand, a high frequency noise current including a resonance frequency current, does not pass the inductor but is dissipated at the resistor. Therefore, the noise filter does not charge noise power and so does not suffer from a problem due to power discharging. The resonance frequency current caused by the noise filter and the earth capacitance is also dissipated at the resistor. Therefore, no problem is caused by the resonance frequency current. A noise filter of the present invention includes an inductor and a resistor connected in parallel with each other. A power supply frequency current does not pass the resistor but passes through the inductor with no loss. On the other hand, a high frequency noise current ...more ...less
2
US20040263287A1
Publication/Patent Number: US20040263287A1
Publication date: 2004-12-30
Application number: 10/607,764
Filing date: 2003-06-30
Abstract: An apparatus and method to provide a tapered electrode in an acoustic resonator. A piezoelectric (PZ) layer, such as Aluminum Nitride (AIN), is formed over a bottom electrode having a tapered end. A top electrode is positioned on the PZ layer. The tapered end of the bottom electrode creates a mild topography to the under layer of the PZ material to prevent cracking in the PZ layer. The tapered end also decreases acoustic losses in the acoustic resonator because the PZ grains are highly oriented. In one embodiment, the acoustic resonator is a film bulk acoustic resonator (FBAR). An apparatus and method to provide a tapered electrode in an acoustic resonator. A piezoelectric (PZ) layer, such as Aluminum Nitride (AIN), is formed over a bottom electrode having a tapered end. A top electrode is positioned on the PZ layer. The tapered end of the bottom ...more ...less
3
US20040263290A1
Publication/Patent Number: US20040263290A1
Publication date: 2004-12-30
Application number: 10/793,574
Filing date: 2004-03-04
Abstract: Provided are coaxial waveguide microstructures. The microstructures include a substrate and a coaxial waveguide disposed above the substrate. The coaxial waveguide includes: a center conductor; an outer conductor including one or more walls, spaced apart from and disposed around the center conductor; one or more dielectric support members for supporting the center conductor in contact with the center conductor and enclosed within the outer conductor; and a core volume between the center conductor and the outer conductor, wherein the core volume is under vacuum or in a gas state. Also provided are methods of forming coaxial waveguide microstructures by a sequential build process and hermetic packages which include a coaxial waveguide microstructure. Provided are coaxial waveguide microstructures. The microstructures include a substrate and a coaxial waveguide disposed above the substrate. The coaxial waveguide includes: a center conductor; an outer conductor including one or more walls, spaced apart from and disposed around ...more ...less
4
US20040263294A1
Publication/Patent Number: US20040263294A1
Publication date: 2004-12-30
Application number: 10/834,901
Filing date: 2004-04-30
Abstract: A latching mechanism is for locking an actuating shaft of an electrical switch, which can be transferred from an OFF position into an ON position by a drive train counter to the force of at least one first spring, in its ON position. The latching mechanism includes a first lever, which is pivotably coupled to the drive train of the actuating shaft and is supported against a stop held in a locking position. For accelerated release of the actuating shaft, also provided is a second lever, which has a working surface assigned to the stop. In this case, the second lever is held in a first stop position against the first lever by way of a second spring. When the second lever pivots under the action of an initiating force, which opposes the force of the second spring, the working surface acts in such a way on the stop that the stop is transferred into a release position. In order to release the actuating shaft more quickly, the forces of the two springs act independently of one another on the first lever, so that a mechanism which provides the initiating force can be formed independently of the drive train. A latching mechanism is for locking an actuating shaft of an electrical switch, which can be transferred from an OFF position into an ON position by a drive train counter to the force of at least one first spring, in its ON position. The latching mechanism includes a first ...more ...less
5
US20040263297A1
Publication/Patent Number: US20040263297A1
Publication date: 2004-12-30
Application number: 10/859,633
Filing date: 2004-06-03
Assignee: MEMSCAP, Inc.
Abstract: A magnetic switch includes a substrate having a recess therein. A rotor or rotors are provided on the substrate. The rotor includes a tail portion that overlies the recess, and a head portion that extends on the substrate outside the recess. The rotor may be fabricated from ferromagnetic material, and is configured to rotate the tail in the recess in response to a changed magnetic field. First and second magnetic switch contacts also are provided that are configured to make or break electrical connection between one another in response to rotation of the tail in the recess, in response to the changed magnetic field. Related operation and fabrication methods also are described. A magnetic switch includes a substrate having a recess therein. A rotor or rotors are provided on the substrate. The rotor includes a tail portion that overlies the recess, and a head portion that extends on the substrate outside the recess. The rotor may be fabricated from ...more ...less
6
US20040263298A1
Publication/Patent Number: US20040263298A1
Publication date: 2004-12-30
Application number: 10/873,383
Filing date: 2004-06-21
Abstract: In order to simplify and reduce the production costs of a push-button switch, especially a push switch or a rocker switch, the switch has a time function, which is manually operated and can be reset by an electric pulse. The electromechanical rocker or push-button switch can be combined to form a device block switch with other rocker or push-button switches as usually used in exhauster hoods. As a result, time-controlled intensive and follow-up steps can be carried out. In order to simplify and reduce the production costs of a push-button switch, especially a push switch or a rocker switch, the switch has a time function, which is manually operated and can be reset by an electric pulse. The electromechanical rocker or push-button switch can be ...more ...less
7
US20040263303A1
Publication/Patent Number: US20040263303A1
Publication date: 2004-12-30
Application number: 10/801,576
Filing date: 2004-03-17
Abstract: An magnetic-field-generating apparatus comprising permanent magnet segments arranged to form a ring-shaped magnetic circuit having a center hole; adjacent permanent magnet segments having such different magnetization directions that their magnetization directions successively change along a circumferential direction of the magnetic circuit; a basic magnetization phase angle &thgr; between the magnetization directions of the adjacent permanent magnet segments being 720/N (°); and a magnetization direction of at least one permanent magnet segment in an essential unit obtained by circumferentially dividing the ring to ¼ being deviated from the basic magnetization phase angle &thgr; by such a deviating angle that a uniform magnetic flux flows in one direction along a diameter of the center hole. An magnetic-field-generating apparatus comprising permanent magnet segments arranged to form a ring-shaped magnetic circuit having a center hole; adjacent permanent magnet segments having such different magnetization directions that their magnetization directions successively ...more ...less
8
US20040263305A1
Publication/Patent Number: US20040263305A1
Publication date: 2004-12-30
Application number: 10/846,244
Filing date: 2004-05-14
Abstract: An inductor includes an elongate magnetic core, a coil wrapped around the core and a spacer that separates the coil from the core to provide a coolant passage between the coil and the core. The coolant passage may include an air passage that extends substantially parallel to an axis of the core and that has first and second openings proximate respective first and second ends of the core. The coil may include a twisted bundle of individually insulated conductors. The inductor may be housed in a flux-tolerant compartment, i.e., a conductive aluminum structure that supports eddy currents with relatively acceptable resistive losses. An inductor includes an elongate magnetic core, a coil wrapped around the core and a spacer that separates the coil from the core to provide a coolant passage between the coil and the core. The coolant passage may include an air passage that extends substantially parallel to an ...more ...less
9
US20040263306A1
Publication/Patent Number: US20040263306A1
Publication date: 2004-12-30
Application number: 10/756,854
Filing date: 2004-08-19
Abstract: An inductive component in accordance with the invention includes a core which is connected to a base via a film having an adhesive coating on at least one side. In a preferred form, the core is made of a magnetic material such as ferrite and the base has a plurality of metalized pads attached thereto for electrically and mechanically connecting the component to a printed circuit board (PCB). The component further includes a winding of wire wound about at least a portion of the core, with the ends of the wire winding being electrically and mechanically connected to the metalized pads. An inductive component in accordance with the invention includes a core which is connected to a base via a film having an adhesive coating on at least one side. In a preferred form, the core is made of a magnetic material such as ferrite and the base has a plurality of metalized ...more ...less
10
US20040263311A1
Publication/Patent Number: US20040263311A1
Publication date: 2004-12-30
Application number: 10/609,931
Filing date: 2003-06-30
Abstract: A striker pin in a thermal switch configured as a mechanical link between a bimetallic disk and an armature spring is provided. The striker pin includes a pin of molded ceramic material. The pin has a generally cylindrical shape, a first axial end, and a second axial end. The first axial end is fastenable in fixed relation to an armature spring. A metalizing film is fused to the second axial end. A metallic deposit is fused to the metalizing film such that the metallic deposit substantially covers the second axial end. A striker pin in a thermal switch configured as a mechanical link between a bimetallic disk and an armature spring is provided. The striker pin includes a pin of molded ceramic material. The pin has a generally cylindrical shape, a first axial end, and a second axial end. The ...more ...less
11
US20040263313A1
Publication/Patent Number: US20040263313A1
Publication date: 2004-12-30
Application number: 10/846,555
Filing date: 2004-05-17
Abstract: A high-voltage variable resistor includes an insulating-resin front case, and an insulating-resin rear case fitted to the front case. The front case further includes a circuit board having a circuit pattern including a resistive element, and a slider that is slidable on the resistive element. The rear case includes a capacitor housing for accommodating a capacitor, and a terminal guide for accommodating an external connection terminal. The capacitor housing and the terminal guides are integrally molded with the rear case. A high-voltage variable resistor includes an insulating-resin front case, and an insulating-resin rear case fitted to the front case. The front case further includes a circuit board having a circuit pattern including a resistive element, and a slider that is slidable on the ...more ...less
12
US20040263316A1
Publication/Patent Number: US20040263316A1
Publication date: 2004-12-30
Application number: 10/602,750
Filing date: 2003-06-24
Assignee: Case, LLC
Abstract: An access control system for controlling access to a vehicle and reconfiguring the vehicle to disable or enable operator smart keys is disclosed. An electronic controller in the vehicle receives signals indicating the presence of a master smart key in the vehicle. Once it determines that a master key is present, it permits one or more individual operator smart keys to be programmed. The identification numbers of these smart keys are stored in an electronic memory of the vehicle. Operators who subsequently insert these keys into the vehicle's ignition will be able to start and operate the vehicle. An access control system for controlling access to a vehicle and reconfiguring the vehicle to disable or enable operator smart keys is disclosed. An electronic controller in the vehicle receives signals indicating the presence of a master smart key in the vehicle. Once it ...more ...less
13
US20040263319A1
Publication/Patent Number: US20040263319A1
Publication date: 2004-12-30
Application number: 10/610,101
Filing date: 2003-06-30
Inventor: Huomo, Heikki
Abstract: A system, apparatus and method for supporting multiple reader-tag configurations and reader-tag distances using a single multi-mode tag. A multi-mode radio frequency (RF) transponder is provided, which includes operational tag circuitry configured to provide information in response to being activated by a reader device(s). Multiple antenna circuits are coupled to the operational tag circuitry, where each of the antenna circuits is configured to operate at a different reader-tag distance. At least one disabling circuit is coupled to the operational tag circuitry and to at least one of the antenna circuits, where the disabling circuit is configured to disable operation of at least one of the antenna circuits to which it is coupled. A system, apparatus and method for supporting multiple reader-tag configurations and reader-tag distances using a single multi-mode tag. A multi-mode radio frequency (RF) transponder is provided, which includes operational tag circuitry configured to provide information in ...more ...less
14
US20040263326A1
Publication/Patent Number: US20040263326A1
Publication date: 2004-12-30
Application number: 10/893,066
Filing date: 2004-07-17
Inventor: Albrecht, Donald
Abstract: A brake early warning system for a vehicle is disclosed. The vehicle has (1) a steering column assembly (500) having a plurality of components, and (2) a vehicle broadcast system, which includes brake lights, a horn, and headlights. The brake early warning system includes a movement sensor (20) which is connected to the steering column assembly (500), and senses relative movement between two of the steering column assembly (500) components when a driver braces against the steering wheel (508) in an urgent braking situation. In such cases, movement sensor (20) senses relative movement, and generates a signal which activates the brake lights, horn, and headlights, thereby alerting any following driver, as well as others in the vicinity, that the vehicle has commenced rapid braking. In a second embodiment the brake early warning system includes inputs of both the weight of the driver and the force applied to the steering wheel, both of which affect the behavior of the system. A brake early warning system for a vehicle is disclosed. The vehicle has (1) a steering column assembly (500) having a plurality of components, and (2) a vehicle broadcast system, which includes brake lights, a horn, and headlights. The brake early warning system includes a ...more ...less
15
US20040263329A1
Publication/Patent Number: US20040263329A1
Publication date: 2004-12-30
Application number: 10/824,844
Filing date: 2004-04-15
Abstract: An intrusion detection technique involves: emitting a wireless signal within a container; detecting the wireless signal near the container; and responding to detection of a change in a characteristic of the detected wireless signal by transmitting a wireless notification to a location remote from the container. A different technique involves: responding to a determination that a condition representative of unauthorized intrusion is present while the container is stationary by transmitting a wireless notification; and responding to a determination that the container is moving by ignoring whether the condition is present. Yet another technique involves: monitoring whether a door of a container is in a closed position; and emitting a wireless signal indicating whether the container door is in the closed position. An intrusion detection technique involves: emitting a wireless signal within a container; detecting the wireless signal near the container; and responding to detection of a change in a characteristic of the detected wireless signal by transmitting a wireless notification to a ...more ...less