121 |
Device for matrix switching |
US09982251 |
2001-10-16 |
US20020053500A1 |
2002-05-09 |
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 on a cylindrical surface (28), an axially symmetric body (40) arranged adjacent said cylindrical surface, drive means (14) capable of rotating said symmetric body, and a number of contact elements (44) arranged to said body on the surface which is facing the cylindrical surface. |
122 |
Optically controlled MEM switches |
US09429234 |
1999-10-28 |
US06310339B1 |
2001-10-30 |
Tsung-Yuan Hsu; Robert Y. Loo; Greg Tangonan; Juan F. Lam |
An optically controlled micro-electromechanical (MEM) switch is described which desirably utilizes photoconductive properties of a semiconductive substrate upon which MEM switches are fabricated. In one embodiment the bias voltage provided for actuation of the switch is altered by illuminating an optoelectric portion of the switch to deactivate the switch. In an alternative embodiment, a photovoltaic device provides voltage to actuate the switch without any bias lines at all. Due to the hysteresis of the electromechanical switching as a function of applied voltage, only modest variation of voltage applied to the switch is necessary to cause the switch to open or close sharply under optical control. |
123 |
Display |
US628759 |
1996-04-05 |
US5748159A |
1998-05-05 |
Takashi Nishio; Chiharu Koshio; Kunimoto Tsuchiya; Tetsuya Matsumoto |
A plurality of select electrodes and a plurality of address electrodes are provided in matrix. A pixel is provided at each intersection of the select electrode and the address electrode. A mechanical electrostatic switch is provided for connecting the pixel with the select electrode and the address electrode. The electrostatic switch is provided to be operated by electrostatic charge stored between a part of the select electrode and a part of the address electrode. |
124 |
Transient energy release microdevices and methods |
US989054 |
1992-12-10 |
US5367878A |
1994-11-29 |
Eric P. Muntz; Richard N. Nottenburg; Geoffrey R. Shiflett |
A microdevice in the form of an electrical switch. A microdevice for providing switching at a high repetition rate, including a cell divided into two chambers by a bistable movable membrane. A charge of gas in the cell and a source for directly heating the gas to increase the gas pressure and move the membrane, the source for heating including a pulsed source for generating transient gas pressure increases, with the cell including an arrangement for cooling the gas for reducing the gas pressure after an increase. |
125 |
Universal matrix switching device |
US9027 |
1987-01-28 |
US4692578A |
1987-09-08 |
John E. Wallace |
A universal matrix switching device used with an automatic test system under computer control for interfacing with a unit under test. The switching device providing high speed switching of conductor pins in a matrix board. The device using oppositely disposed push-type actuators to move the conductor pins from a first conductor position to a second conductor position and returning the pins to the first conductor position. |
126 |
Switch actuator assembly |
US289788 |
1981-08-03 |
US4399335A |
1983-08-16 |
Ronnalee House; John Delaplane; Ronald G. Davis |
An elongated unitary arm of a rigid material is tiltably mounted upon a rotor supported for rotation about a central axis and is spring force tilted in a first direction. This assembly is located in such a manner that the arm may be placed in register with any one of the operating tabs of a plurality of electrical load switches so mounted and oriented that the operating tabs extend toward the central axis to define a circle. Upon being placed in register with a switch operating tab, the arm is tilted in the opposite direction by the action of a solenoid actuated plunger. |
127 |
Power electric circuit switching device |
US249840 |
1981-04-01 |
US4368443A |
1983-01-11 |
Vitaly I. Koshman; Vladimir F. Petrichenko; Boris S. Gnilitsky; Vyacheslav D. Oborotov; Alexandr M. Ubiiko; Leonid P. Abara |
On an insulating baseboard with a central opening there are located contacts. There are also auxiliary contacts intended for connecting local control circuits of the device. A rotational electromechanical drive is provided to rotate a contactor, and an electromagnetic drive is adapted to reciprocate said contactor for operating contacts. The electromagnet drive has an electromagnet for closing contacts and a plurality of electromagnets for opening contacts. The number of the electromagnets corresponds to the number of the contact fixing devices. The armature of each electromagnet is connected with one of the contact fixing devices. |
128 |
Relay-like control devices, to control device matrixes and to circuits
for actuating such devices |
US863675 |
1977-12-23 |
US4206369A |
1980-06-03 |
Jacques Lewiner; Gerard Dreyfus; Jean-Yves Le Traon |
A control device comprising three mechanical elements, one of which is moe relatively to the two others and one of these elements being an electret, whereas the two others are control electrodes. The mechanical mobile element forms a portion partially cut out of a plate 3. Applications to electrical (particularly telephone exchanges and optical information display) switching. |
129 |
Reed relay switching systems |
US54216566 |
1966-04-12 |
US3336507A |
1967-08-15 |
JAMES WARMAN BLOOMFIELD; FREDERICK DERBYSHIRE RAYMOND J |
|
130 |
Switching matrix |
US53752766 |
1966-03-25 |
US3331991A |
1967-07-18 |
MELVIN CARLISLE RAYMOND; ALEXANDER FRAUNFELDER JAMES |
|
131 |
Electrical circuit selector |
US35495164 |
1964-03-26 |
US3275962A |
1966-09-27 |
LONG RICHARD H |
|
132 |
Selector switch |
US47154843 |
1943-01-07 |
US2372782A |
1945-04-03 |
HOLDEN WILLIAM H T |
|
133 |
Selector |
US11210836 |
1936-11-21 |
US2098353A |
1937-11-09 |
NICOLAUS FRANK G; BREITENSTEIN CHARLES J |
|
134 |
Circuit arrangement for relay selectors in telephone systems |
US39778429 |
1929-10-07 |
US1844256A |
1932-02-09 |
MAX LANGER |
|
135 |
Selecting device |
US50841121 |
1921-10-17 |
US1649168A |
1927-11-15 |
LADD LESTER L |
|
136 |
Piezoelectric multiplexer |
US14513021 |
2014-10-13 |
US09245704B2 |
2016-01-26 |
Lizon Maharjan; Babak Fahimi; Daniel Christopher Dial; Joseph Hearron; Job Timothy Brunet; Arash Hassanpour Isfahani; Carlos Caicedo-Narvaez |
A piezoelectric multiplexer includes an actuator and multiple piezo-morph beams. The actuator includes an actuator conducting head and an actuator stem, and each piezo-morph beam includes a conducting beam contact head and a beam stem manufactured out of piezo-morph material. A control voltage is selectively applied to electrical contacts coupled to the beam stems to create a piezoelectric effect that bends the selected piezo-morph beam and creates an electrical connection between its contact head and the conducting head of the actuator. A control circuit with a controller signals which piezo-morph beam to connect to the actuator. This multi-piezo-morph-beam piezoelectric multiplexer can be affixed to the electrical terminals of different electrical components (e.g., a transistor) to create an electrical cell that can be manufactured on a semiconductor chip or in a microelectromechanical system (MEMS) device. |
137 |
PIEZOELECTRIC MULTIPLEXER |
US14513021 |
2014-10-13 |
US20150097635A1 |
2015-04-09 |
Lizon Maharjan; Babak Fahimi; Daniel Christopher Dial; Joseph Hearron; Job Timothy Brunet; Arash Hassanpour Isfahani; Carlos Caicedo-Narvaez |
A piezoelectric multiplexer includes an actuator and multiple piezo-morph beams. The actuator includes an actuator conducting head and an actuator stem, and each piezo-morph beam includes a conducting beam contact head and a beam stem manufactured out of piezo-morph material. A control voltage is selectively applied to electrical contacts coupled to the beam stems to create a piezoelectric effect that bends the selected piezo-morph beam and creates an electrical connection between its contact head and the conducting head of the actuator. A control circuit with a controller signals which piezo-morph beam to connect to the actuator. This multi-piezo-morph-beam piezoelectric multiplexer can be affixed to the electrical terminals of different electrical components (e.g., a transistor) to create an electrical cell that can be manufactured on a semiconductor chip or in a microelectromechanical system (MEMS) device. |
138 |
Switching matrix with two control inputs at each switching element |
US11283274 |
2005-11-18 |
US07684427B2 |
2010-03-23 |
Horst Kröckel |
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. |
139 |
Fingerprint sensors using membrane switch arrays |
US11120525 |
2005-05-02 |
US07638350B2 |
2009-12-29 |
Keith T. Deconde; Srinivasan K. Ganapathi; Randolph S. Gluck; Steve H. Hovey; Shiva Prakash; Christopher Stoessel |
A method of making an integrated texture sensor for sensing a texture is described. In one embodiment, the method is directed to a sensor that that is protected from external contaminating particulates and will self-equalize using air from outside the sensor. Further combinations of such protection among various membrane switches, in combination with various types of membranes, is described. In another embodiment, a method of making a skin-texture sensor for sensing a skin texture having a plurality of ridges and a plurality of valleys is described, such that when completed, applying a ridge of the texture to a membrane switch will cause flexure of the membrane resulting in a contact between the lower electrode and the upper electrode, the contact establishing an electrical communication between said one of the row lines and said one of the column lines, whereas disposing a valley of the texture over said each membrane switch will not result in the contact between the lower electrode and the upper electrode. |
140 |
Method and apparatus for protection of contour sensing devices |
US11762732 |
2007-06-13 |
US07437953B2 |
2008-10-21 |
Keith T DeConde; Joram Diamant; Srinivasan K. Ganapathi; Joseph J. 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. |