|
Match
|
Document |
Document Title |
|
|
8174306 |
Electrostatic actuator apparatus
According to one embodiment, an electrostatic actuator apparatus includes a first voltage generation circuit configured to generate a first voltage, a first switch connected between the first...
|
|
|
8149559 |
Piezoelectric actuator driving device and method
A driving device for a piezoelectric actuator supplies charges and discharges the piezoelectric actuator through a charging switch and a discharging switch, respectively. The charging switch is...
|
|
|
8102637 |
Control techniques for electrostatic microelectromechanical (MEM) structure
Disclosed are a method, device, and system for a microelectromechanical (MEM) device control system that can control the operation of a MEM device. The system can include a microelectromechanical...
|
|
|
8035949 |
Semiconductor device and method of controlling electrostatic actuator
A semiconductor device applies a hold voltage Vhold to an upper electrode of an electrostatic actuator and a ground voltage to a lower electrode. After the semiconductor device sets the voltage of...
|
|
|
7973373 |
Microminiature moving device
A microminiature moving device has disposed on a single-crystal silicon substrate movable elements such as a movable rod and a movable comb electrode that are displaceable in parallel to the...
|
|
|
7973365 |
Integrated RF ESD protection for high frequency circuits
The invention relates to a high-frequency integrated circuit requiring ESD protection for a circuit node. One or more metallic layer is deposited within the integrated circuit and patterned to form...
|
|
|
7709757 |
Microsystem comprising a deformable bridge
The invention relates to a microsystem comprising a deformable bridge, the ends of which are connected to a substrate. According to the invention, at least one actuation electrode, which is solidly...
|
|
|
7692914 |
Microsystem
A microsystem consists of at least one sensor and/or actuator, a signal processor and/or control mechanism linked therewith, a timer, and an electrical energy storage unit providing a current...
|
|
|
7599163 |
System and method for driving an industrial control device
A process control apparatus including an actuator configured to effect changes in an industrial process, a power supply, a plurality of current switches coupled between the actuator and the power...
|
|
|
7573695 |
Snapdown prevention in voltage controlled MEMS devices
An architecture and method are provided for preventing snapdown in a voltage controlled MEMS device having a movable actuator with an actuator electrode coupled to a high voltage power supply...
|
|
|
7391090 |
Systems and methods for electrically coupling wires and conductors
A first device includes a micrometer-scale or smaller geometry first conductor. A second device includes a micrometer-scale or smaller second conductor. An actuator the first and second devices...
|
|
|
7332835 |
Micro-electromechanical system based switching module serially stackable with other such modules to meet a voltage rating
MEMS-based switching module, as may be electrically connected to other such modules in a series circuit, to achieve a desired voltage rating is provided. A switching array may be made up of a...
|
|
|
7271700 |
Thin film resistor with current density enhancing layer (CDEL)
A thin film resistor device and method of manufacture includes a layer of a thin film conductor material and a current density enhancing layer (CDEL). The CDEL is an insulator material adapted to...
|
|
|
7218499 |
Charge control circuit
A charge control circuit includes a switch circuit having an input node configured to receive a reference voltage at a selected voltage level and configured to respond to a charge signal to...
|
|
|
7130177 |
Drive circuit of switch and relay circuit
A drive circuit and relay circuit using this drive circuit are provided, the drive circuit including: a first terminal connected to a drive electrode located at one side of a mechanical switch...
|
|
|
7113386 |
Electrostatic actuator
An electrostatic actuator includes a movable piece provided on a substrate via supporting beams such that the movable piece can be displaced in the Y-axial direction. The movable piece is displaced...
|
|
|
7088566 |
Charge control of micro-electromechanical device
A charge control circuit for controlling a micro-electromechanical system (MEMS) device having variable capacitor formed by first conductive plate and a second conductive plate separated by a...
|
|
|
6924966 |
Spring loaded bi-stable MEMS switch
A MEMS switch assembly comprising a substrate and a resilient switching member is provided. The resilient switching member comprises a transverse torsion member having a flexible portion, and a...
|
|
|
6788520 |
Capacitive sensing scheme for digital control state detection in optical switches
Disclosed is an apparatus and method for detecting whether rotatable MEMS elements are in the “on” or “off” position. Embodiments of the invention have application in devices switches that employ ...
|
|
|
6731492 |
Overdrive structures for flexible electrostatic switch
A MEMS (Micro Electro Mechanical System) electrostatically operated high voltage switch or relay device is provided. These devices can switch high voltages while using relatively low electrostatic...
|
|
|
6661637 |
Apparatus and method to angularly position micro-optical elements
A micro-opto-electro-mechanical transducer in which an optical element is angularly positioned by electrical field coupling. Movable electrodes of two orthogonally disposed, differential variable...
|
|
|
6635837 |
MEMS micro-relay with coupled electrostatic and electromagnetic actuation
A microelectromechanical relay and a method of fabricating the same that combines electrostatic actuation with electromagnetic actuation. The relay has very low contact resistance when the relay is...
|
|
|
6549437 |
Voltage converter
Two sets of two relay switches, which charge a pump capacitor and a reservoir capacitor of a charge pump type voltage converter, are formed respectively by a set of plural piezo-electric relays,...
|
|
|
6486425 |
Electrostatic microrelay
An electrostatic microrelay is disclosed. The electrostatic microrelay includes a fixed substrate having a fixed electrode and a fixed terminal on its upper surface and a moveable substrate having...
|
|
|
6229683 |
High voltage micromachined electrostatic switch
A MEMS (Micro Electro Mechanical System) electrostatically operated high voltage switch or relay device is provided. This device can switch high voltages while using relatively low electrostatic...
|
|
|
5994750 |
Microstructure and method of forming the same
There is provided a microstructure comprising a substrate, support members, a lever and an electrode formed on the lever is characterized in that said support members support said substrate and...
|
|
|
5895958 |
Input protection circuit for use in semiconductor device having an improved electrostatic breakdown voltage
In an input protection circuit, a bipolar protection device is constituted of a semiconductor substrate of a first conductivity type, a first diffused layer of a second conductivity type formed in...
|
|
|
5666258 |
Micromechanical relay having a hybrid drive
A micromechanical relay is provided having a cantilevered armature (53) which is etched out from an armature substrate (52). The armature is in the form of a tongue, is elastically connected to the...
|
|
|
5544001 |
Electrostatic relay
An electrostatic relay comprises at least one fixed base having a fixed electrode and an actuator frame having a movable electrode. The fixed base carries a pair of fixed contacts insulated from...
|
|
|
5278368 |
Electrostatic relay
An electrostatic relay essentially comprises a fixed electrode with a fixed contact insulated therefrom, a movable electrode plate with a movable contact insulated therefrom, and a fixed pair of...
|
|
|
4857757 |
Drive circuit for a two layer laminated electrostriction element
A drive circuit of a two-laminated electrostriction element, wherein a common junction of two sheets of electric distortion elements is connected to one of the driving power source through a first...
|
|
|
4819126 |
Piezoelectic relay module to be utilized in an appliance or the like
A piezoelectric relay module having a plurality of relays of different load ratings is disclosed. Each relay is constructed from a portion of a single bimorph structure by cutting the bimorph...
|
|
|
4626698 |
Zero crossing synchronous AC switching circuits employing piezoceramic bender-type switching devices
Zero crossing synchronous AC switching circuits are provided which employ piezoelectric ceramic bender-type switching devices for use in supplying loads of a resistive, inductive or capacitive...
|
|
|
3989964 |
Piezoelectric switch activating means
At least three pairs of opposing electrodes on the two major faces of a poelectric or electrostrictive transducer element having a gap which is adapted to change in response to selected control...
|
|
|
3809974 |
CORONA DISCHARGE DEVICE
To provide a substantially uniform electrostatic charge on a relatively large area of a surface at ambient pressure, a novel corona discharge device comprises a transparent electrically conductive...
|
|
|
3809924 |
METHOD AND APPARATUS FOR CONTROLLING THE DRYING OPERATION IN AN APPLIANCE SUCH AS A DRYER, WASHER-DRYER OR THE LIKE
A method of controlling the drying operation of laundry in dependence upon the moisture content thereof in an appliance such as a dryer, washer-dryer or the like is disclosed. The appliance has a...
|
|
|
3777093 |
ELECTROMECHANICAL RELAY
An improved relay incorporating a cantilever comprised of an elongated piezoelectric element joined to an electrical conductive armature with the armature portion of the cantilever positioned about...
|
|
|
3757243 |
AMPLIFIER AND PROTECTION CIRCUITRY THEREFOR
Amplifier having an input circuit protected by contacts which are actuated between open and closed conditions in response to the output of the amplifier to protect the circuit against high input...
|
|
|
3749947 |
SWITCH DEVICES
A switch device comprises an elongated member made of piezoelectric material and provided with a plurality of spaced apart lateral projections and driving means connected to the member. When the...
|
|
|
3688135 |
PIEZOELECTRICALLY ACTUATED LEVER SWITCH
A piezoelectric motor is coupled to a pair of electrical contacts by a pair of buckled springs which are called parabolic or arcuate levers. Each parabolic lever carries a contact located at the...
|
|
|
3623025 |
VARIABLE RESISTANCE INFORMATION READING ELEMENT
A recording device in which there is added in accordance with a recording signal an impurity acting as a recombination center and forming a deep energy level to a solid like a semiconductor and an...
|
|
|
3504281 |
CURRENT RESPONSIVE APPARATUS FOR A HIGH VOLTAGE CONDUCTOR WHEREIN DISPLACEMENTS RESPONSIVE TO CURRENT VARIATIONS ARE TRANSFORMED INTO FORCES WHICH ARE TRANSMITTED TO A REMOTE POINT AND FORCE TRANSDUCER APPARATUS
|
|
|
3501745 |
FREQUENCY SELECTIVE RESONANT REED DETECTOR
|
|
|
3413497 |
Insulated-gate field effect transistor with electrostatic protection means
|
|
|
3324382 |
Electrostatic apparatus for voltage regulation
|
|
|
3233540 |
Line-at-a-time printer
|
|
|
3155791 |
Twist responsive switch assembly
|
|
|
3153710 |
Electrostatic relay for measuring small currents and charges
|
|
|
3013578 |
Static electricity sensing and control means
|
|
|
3004126 |
Relay
|