序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
101 Magnetic levitation actuator US10522626 2003-07-30 US07142078B2 2006-11-28 Herve Rostaing; Jerome Delamare; Orphee Cugat; Christel Locatelli
A magnetic actuator including a mobile magnetic part, a fixed magnetic part, and a mechanism for triggering displacement of the mobile magnetic part relatively to the fixed magnetic part. At least two amagnetic supports, placed in different planes, delimit a gap between them, the fixed magnetic part being integral with at least one of the supports. The supports each have an abutment area for the mobile magnetic part, the abutment area being distinct from the fixed magnetic part. The mobile magnetic part is in levitation in the gap between both supports by magnetic guiding due to the fixed magnetic part when it does not abut against the abutment area of one of the supports. The mobile magnetic part can assume plural stable magnetic positions; in each of these positions, it abuts against a support.
102 Relay and cross-connect US10509842 2002-04-02 US07102482B2 2006-09-05 Tore Andre
The present invention relates to a fuse-relay including a first pole (1, 11, 21, 31, 81) and a second pole (2, 12, 22, 32, 82). According to the invention the fuse-relay includes a resilient device (5, 18, 27, 37, 87) that is held in an elastically deformed position by a fuse (6, 16, 26, 36, 86) when the fuse (6, 16, 26, 36, 86) is whole; and in that the resilient device (5, 18, 27, 37, 87) is arranged to make or break a connection between the first pole (1, 11, 21, 31, 81) and the second pole (2, 12, 22, 32, 82) when the fuse (6, 16, 26, 36, 86) is blown. The invention also relates to a cross-connect with such fuse-relays, to a telecommunication system with such cross-connects and to a connection method.
103 Electrostatic actuator for microelectromechanical systems and methods of fabrication US10766720 2004-01-27 US07098571B2 2006-08-29 Scott Adams; Tim Davis; Scott Miller; Kevin Shaw; John Matthew Chong; Seung (Chris) Bok Lee
A method and apparatus are described that may be used to provide decoupled rotation of structures about different pivot points. The apparatus may include one or more fixed blades mounted to a frame or substrate, one or more movable blades mounted to each structure to be moved, and flexures on which the structures are suspended. Separate movable blades may be provided for each degree of freedom. When voltage is applied between the fixed and movable blades, the electrostatic attraction generates a force attracting movable blades toward blades that are fixed relative to the moveable blades, causing a structure to rotate about the flexures. The angle of rotation that results may be related to the size, number and spacing of the blades, the stiffness of the flexures and the magnitude of the voltage difference applied to the blades. The blades are fabricated using deep silicon etching.
104 Switching matrix with two control inputs at each switching element US11283274 2005-11-18 US20060126609A1 2006-06-15 Horst Krockel
A switching matrix has a first number of inputs and a second number of outputs as well as a conductor arrangement and controllable switching elements by means of which the inputs can be connected with the outputs. The controllable switching elements are fashioned such that at least two independent control signals are required to trigger a switching event.
105 Wide band cross point switch using MEMS technology US11003031 2004-12-03 US07034373B2 2006-04-25 Robert C. Allison; Jar J. Lee
A multilayer switching assembly for switching high frequency signals has MEMS structures on a ceramic substrate having a top surface 500, a bottom surface and a plurality of insulating layers (510,512,514). The insulating layers are separated by at least a first conductor 502 and a second conductor 504. The first conductor 502 is connected to a ground potential. The second conductor 504 is separated from the first conductor 502 by one of the insulating layers. The second conductor presents a specific impedance (50 ohms) with respect to the first conductor to high frequency signals traveling on the second conductor.64 MEMS structures (e.g. 540,708,716,718, 720) are mounted on the top surface. Each MEMS has an input, an output, and a control. The input connected to the second conductor. The output is connected to a coplanar waveguide (508) placed on the top surface (500). The control is connected to the bottom surface.The input to each MEMS is electrically separated from the output and from the control by a third conductor (534,550,532,530) connected to the first (grounded) conductor (502). The third conductor traverses one or more of the insulating layers thereby acting as a shield and precluding the high frequency signals presented to the input from propagating to the output and to the control. The 64 MEMS are arranged in a square 8 by 8 matrix, as well as their controls. High frequency inputs and outputs to be switched by the MEMS are placed on the periphery of the substrate to further enhance the separation of signals. Terminating resistors (50 ohms) are also placed near the periphery.
106 Magnetic levitation actuator US10522626 2003-07-30 US20050237140A1 2005-10-27 Herve Rostaing; Jerome Delamare; Orphee Cugat; Christel Locatelli
A magnetic actuator including a mobile magnetic part, a fixed magnetic part, and a mechanism for triggering displacement of the mobile magnetic part relatively to the fixed magnetic part. At least two amagnetic supports, placed in different planes, delimit a gap between them, the fixed magnetic part being integral with at least one of the supports. The supports each have an abutment area for the mobile magnetic part, the abutment area being distinct from the fixed magnetic part. The mobile magnetic part is in levitation in the gap between both supports by magnetic guiding due to the fixed magnetic part when it does not abut against the abutment area of one of the supports. The mobile magnetic part can assume plural stable magnetic positions; in each of these positions, it abuts against a support.
107 Method and apparatus for protection of contour sensing devices US11090315 2005-03-25 US20050223818A1 2005-10-13 Keith DeConde; Joram Diamant; Srinivasan Ganapathi; Joseph Pritikin
A sheet film protective covering for different types of contour sensing devices is described. In a preferred embodiment, this covering is a mylar sheet film that is coated with a layer of a conductive material. The bottom surface of the mylar film is also preferably coated with a layer of an adhesive. The sheet film covering preferably is contiguous and serves the purpose, among other things, to protect the underlying surface of the pressure-sensing device from contaminants and from electrostatic discharge, as well provide force concentration during use.
108 Wide band cross point switch using MEMS technology US11003031 2004-12-03 US20050139941A1 2005-06-30 Robert Allison; Jar Lee
A multilayer switching assembly for switching high frequency signals has MEMS structures on a ceramic substrate having a top surface 500, a bottom surface and a plurality of insulating layers (510,512,514). The insulating layers are separated by at least a first conductor 502 and a second conductor 504. The first conductor 502 is connected to a ground potential. The second conductor 504 is separated from the first conductor 502 by one of the insulating layers. The second conductor presents a specific impedance (50 ohms) with respect to the first conductor to high frequency signals traveling on the second conductor. 64 MEMS structures (e.g. 540,708,716,718, 720) are mounted on the top surface. Each MEMS has an input, an output, and a control. The input connected to the second conductor. The output is connected to a coplanar waveguide (508) placed on the top surface (500). The control is connected to the bottom surface. The input to each MEMS is electrically separated from the output and from the control by a third conductor (534,550,532,530) connected to the first (grounded) conductor (502). The third conductor traverses one or more of the insulating layers thereby acting as a shield and precluding the high frequency signals presented to the input from propagating to the output and to the control. The 64 MEMS are arranged in a square 8 by 8 matrix, as well as their controls. High frequency inputs and outputs to be switched by the MEMS are placed on the periphery of the substrate to further enhance the separation of signals. Terminating resistors (50 ohms) are also placed near the periphery.
109 RF MEMS switch matrix US10407056 2003-04-03 US06888420B2 2005-05-03 James H. Schaffner; Robert Y. Loo
A broadband multiple input, multiple output switch matrix. The switch matrix comprises multiple crosspoint switch element tiles. Each tile comprises RF MEMS switches disposed on a substrate to provide a crosspoint switching capability. The crosspoint switch element tiles are disposed in a flip-chip manner on the upper side of an RF substrate that provides RF connectivity between the various crosspoint switch element tiles. A bias line substrate disposed on the lower side of the RF substrate receives control signals for the crosspoint switch element tiles and routes the signals through the RF substrate using vias in the RF substrate.
110 Electrostatic actuator for microelectromechanical systems and methods of fabrication US10766720 2004-01-27 US20040245890A1 2004-12-09 Scott Adams; Tim Davis; Scott Miller; Kevin Shaw; John Matthew Chong; Seung Bok Lee
A method and apparatus are described that may be used to provide decoupled rotation of structures about different pivot points. The apparatus may include one or more fixed blades mounted to a frame or substrate, one or more movable blades mounted to each structure to be moved, and flexures on which the structures are suspended. Separate movable blades may be provided for each degree of freedom. When voltage is applied between the fixed and movable blades, the electrostatic attraction generates a force attracting movable blades toward blades that are fixed relative to the moveable blades, causing a structure to rotate about the flexures. The angle of rotation that results may be related to the size, number and spacing of the blades, the stiffness of the flexures and the magnitude of the voltage difference applied to the blades. The blades are fabricated using deep silicon etching.
111 Bi-stable microswitch including magnetic latch US09883220 2001-06-19 US06794964B2 2004-09-21 Dinesh Kumar Sood; Ronald Barry Zmood; Lijiang Qin
A bi-stable microswitch (1) including a pair of contacts (4, 5) and an armature (10,11) movable between a first position and a second position to selectively break or make the pair of contacts, the armature being latched in the second position by a magnetic path including a permanent magnet (3) and a magnetizable element (7) having a first temperature, wherein the armature is resiliently biased towards the first position when latched, and is movable from the second position to the first position upon heating of the magnetizable element to above the first temperature.
112 RF MEMS switch matrix US10407056 2003-04-03 US20040095205A1 2004-05-20 James H. Schaffner; Robert Y. Loo
A broadband multiple input, multiple output switch matrix. The switch matrix comprises multiple crosspoint switch element tiles. Each tile comprises RF MEMS switches disposed on a substrate to provide a crosspoint switching capability. The crosspoint switch element tiles are disposed in a flip-chip manner on the upper side of an RF substrate that provides RF connectivity between the various crosspoint switch element tiles. A bias line substrate disposed on the lower side of the RF substrate receives control signals for the crosspoint switch element tiles and routes the signals through the RF substrate using vias in the RF substrate.
113 High-frequency, liquid metal, latching relay array US10413278 2003-04-14 US06730866B1 2004-05-04 Marvin Glenn Wong; Arthur Fong
An electrical relay array using conducting liquid in the switching mechanism. The relay array is amenable to manufacture by micro-machining techniques. In each element of the relay array, two electrical contacts are held a small distance apart. The facing surfaces of the contacts each support a droplet of a conducting liquid, such as a liquid metal. An actuator, coupled to one of the electrical contacts, is energized in a first direction to reduce the gap between the electrical contacts, causing the two conducting liquid droplets to coalesce and complete an electrical circuit. The actuator is then de-energized and the contacts return to their starting position. The liquid droplets remain coalesced because of surface tension. The electrical circuit is broken by energizing an actuator to increase the gap between the electrical contacts to break the surface tension bond between the conducting liquid droplets. The droplets remain separated when the actuator is de-energized because there is insufficient conducting liquid to bridge the gap between the contacts. Additional conductors may be included in the assembly to provide a coaxial structure and allow for high frequency switching. In an exemplary embodiment, the actuator is a piezoelectric actuator and the conducting liquid is a liquid metal.
114 Device for matrix switching US10176397 2002-06-21 US06710268B2 2004-03-23 Sture Góste Roos
A switching device selectively connects a number of incoming electrical lines with a number of outgoing electrical lines. The incoming and outgoing lines are each connected to individual contact surfaces, respectively. The contact surfaces are arranged in concentric ring-shaped areas. A maneuvering unit is arranged in the center of the ring-shaped areas. A driver rotates the maneuvering unit. A number of contact elements are positioned by the maneuvering unit, to obtain electrical contact between specific, contact surfaces.
115 Adaptive manifold US09681380 2001-03-27 US06667873B2 2003-12-23 James C. Lyke; Warren G. Wilson; Ren H. Broyles
An adaptive electrical manifold is comprised of switchbox assemblies containing a plurality of non-volatile MEMS relay switches, apparatus for controlling these switches, and apparatus for controlling a daisy-chained group of switchbox assemblies.
116 Method and apparatus for pressure sensing US09571765 2000-05-16 US06578436B1 2003-06-17 Srinavasan K. Ganapathi; Randolph S. Gluck; Steven H. Hovey; Shiva Prakash
The present invention provides a pressure based fingerprint image capture device that includes an array of cantilevers or simply suspended bridges, with each pressure based sensor having a cantilever or a simply suspended bridge in contact with a conducting electrode that deforms under the load applied by the localized ridge on the fingerprint, and which provides contact to another conducting electrode thereby closing the electrical circuit, a switch in the simplest form, and providing a “pulse” response from the sensor. In the quiescent state, each cantilever or simply suspended bridge structure contains an upper electrode which forms one part of the switch, while another conducting layer, the lower electrode at the bottom of the well of the individual sensor, forms the other part of the switch.
117 Device for matrix switching US10176397 2002-06-21 US20030000813A1 2003-01-02 Sture Roos
The present invention relates to a switching device for optional connection of a number of incoming electrical lines with a number of outgoing electrical lines, where the incoming and outgoing lines each are connected to individual contact surfaces (34, 36, 38) respectively, that the contact surfaces are arranged in concentric ring-shaped areas, a manoeuvring unit arranged in the centre of said ring-shaped areas, drive means (14) capable of rotating said manoeuvring unit, a number of contact elements (44) arranged to said manoeuvring unit, whereby the manoeuvring unit is capable of positioning said contact elements for obtaining electrical contact between specific, chosen, contact surfaces.
118 Electronic devices including micromechanical switches US09734077 2000-12-11 US06495387B2 2002-12-17 Ian D. French
A method of manufacturing an electronic device comprising an integrated circuit device having micromechanical switches (10) and thin film circuit components (20) provided on a common substrate (2). The micromechanical switches (10) have contact beams (12) extending over a respective sacrificial region. Component layers (5) for forming the thin film circuit components are used as the sacrificial region in the area of the substrate allocated to the micromechanical switches. This enables various layers to be shared between the switches and the components. A supplementary support layer (50) may be provided for the contact beams to protect them against damage during subsequent processing and fabrication stages. A portion of this support layer can be left attached to the beam in the completed device for increased strength.
119 Electronically switching latching micro-magnetic relay and method of operating same US09596608 2000-06-19 US06469603B1 2002-10-22 Meichun Ruan; Jun Shen
According to various embodiments of the invention, a relay is suitably formed to exhibit an open state and a closed state. The relay is operated by providing a cantilever sensitive to magnetic fields such that the cantilever exhibits a first state corresponding to the open state of the relay and a second state corresponding to the closed state of the relay. A first magnetic field may be provided to induce a magnetic torque in the cantilever, and the cantilever may be switched between the first state and the second state with a second magnetic field that may be generated by, for example, a conductor formed on a substrate with the relay.
120 Micro-relay and method for manufacturing the same US10128542 2002-04-24 US20020117937A1 2002-08-29 Minoru Sakata; Takuya Nakajima; Tomonori Seki; Teruhiko Fujiwara; Masashi Takeuchi
A thin plate-shaped substrate 21 comprised of a monocrystal is provided with a piezoelectric element 24, and both ends of a movable piece 20 whose one surface is provided with a movable contact 25 are fixed and supported to a base 11. Then, by curving the movable piece 20 via the piezoelectric element 24, the movable contact 25 is brought in and out of contact with a pair of fixed contacts 38 and 39 that face the movable contact. With this arrangement, a subminiature micro-relay having a mechanical contact mechanism that has a small resistance in turning on the contact and the desired vibration resistance, frequency characteristic and insulating property can be obtained.
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