| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Shell type actuator | US11358299 | 2006-02-20 | US20060239635A1 | 2006-10-26 | Maxim Zalalutdinov; Robert Reichenbach; Keith Aubin; Brian Houston; Jeevak Parpia; Harold Craighead |
| A micromechanical resonator is formed on a substrate. The resonator has a partial spherical shell clamped on an outside portion of the shell to the substrate. In other embodiments, a flat disc or other shape may be used. Movement is induced in a selected portion of the disc, inducing easily detectible out-of-plane motion. A laser is used in one embodiment to heat the selected portion of the disc and induce the motion. The motion may be detected by capacitive or interferometric techniques. | ||||||
| 42 | Method and apparatus for tracking a resonant frequency | US10512129 | 2003-04-15 | US07089794B2 | 2006-08-15 | Victor Alexandrovich Kalinin; John Peter Beckley |
| An arrangement for tracking resonant frequency of electrically resonant structures through a single channel includes a variable frequency oscillator associated with each resonant structure which provides an excitation signal of a variable frequency encompassing a possible resonant frequency of the associated resonant structure. Coupling device(s) are provided which connect each variable frequency oscillator to said resonant structure(s). An I-mixer is provided for each oscillator which forms a synchronous detector, a first input of each I-mixer being connected to its associated oscillator and a second input being connected to the coupling device, each I-mixer mixing the excitation signal from the associated variable frequency oscillator with a response signal generated by the resonant structure(s) in response to each excitation signal. The output of each I-mixer is filtered to remove sum products of the excitation and response signals, thereby leaving an amplitude modulation component of the signal, which is processed in a control loop to track the resonant frequency of each resonant structure. | ||||||
| 43 | Antenna for tire pressure monitoring wheel electronic device | US10322005 | 2002-12-17 | US06933898B2 | 2005-08-23 | John S. Nantz; Qingfeng Tang; Ronald O. King; Riad Ghabra |
| An antenna system for a radio frequency (RF) electronic device includes a printed circuit board (PCB), a ground plane, and an active element. The PCB has a top surface and a bottom surface. The ground plane is on the bottom surface. The active element is mounted on the top surface. The active element includes a first segment positioned in a top surface plane and connected to a second segment oriented perpendicular to the top surface. | ||||||
| 44 | System and method for integrated tire pressure monitoring and passive entry | US10193418 | 2002-07-11 | US06647773B2 | 2003-11-18 | John S. Nantz; Qingfeng Tang; Riad Ghabra |
| A system and method for remote monitoring of vehicle tire pressure include monitors in each tire to transmit signals representative of tire pressure and receive control signals for use in regulating transmission of the tire pressure signals. A vehicle receiver receives the tire pressure signals and passive entry signals transmitted by a remote passive entry device. A vehicle transmitter transmits the control signals for use in regulating transmission of the tire pressure signals. A controller on-board the vehicle in communication with the receiver and transmitter conveys tire pressure information to a vehicle occupant based on the tire pressure signals, determines whether the vehicle is occupied based on the passive entry signal, and generates a control signal operative to halt transmission of the tire pressure signals when the vehicle is unoccupied. | ||||||
| 45 | System and method for tire pressure monitoring using vehicle radio | US10219127 | 2002-08-15 | US20030164760A1 | 2003-09-04 | John S. Nantz; Qingfeng Tang; Riad Ghabra; David K. Carlson; William Jarvis; Gerald Sheldon |
| A system and method for remote monitoring of tire pressure in a vehicle having multiple tires includes a controller mounted on the vehicle and provided in communication with a vehicle radio. The vehicle radio is for use in receiving wireless broadcast signals and includes a display. The controller generates tire information signals based on tire pressure data transmitted from each of the tires. The tire information signals are used by the vehicle radio to convey tire pressure information to a vehicle occupant using the vehicle radio display. | ||||||
| 46 | System and method for using a saw based RF transmitter for FM transmission in a TPM | US10321933 | 2002-12-17 | US20030164034A1 | 2003-09-04 | John S. Nantz; Qingfeng Tang; Ronald O. King; Riad Ghabra |
| For use in a tire pressure monitoring system, a frequency modulation (FM) radio frequency (RF) oscillator includes a modulator and a generator. The modulator may be configured to generate a modulation signal in response to a data input signal. The generator may be configured to generate an FM output signal having a carrier frequency modulated by the modulation signal, wherein the generator includes a frequency determining device. | ||||||
| 47 | System and method for tire pressure monitoring including tire location recognition | US10164339 | 2002-06-05 | US20030164031A1 | 2003-09-04 | John S. Nantz; Qingfeng Tang; Ronald O. King; Riad Ghabra; Keith Walker; Thomas Bejster; Bruce Conner; Qing Li; Art Turovsky |
| In a system for remote monitoring of vehicle tire pressure, a system and method for identifying tire location. A tire pressure monitor for each tire includes a sensor for sensing tire pressure, a transmitter for transmitting a signal representative of the sensed tire pressure, and a sensor for sensing an impact to the tire and for actuating the transmitter to transmit a tire pressure signal in response. A receiver for mounting on the vehicle receives the tire pressure signals. A controller for mounting on the vehicle communicates with the receiver and is for use in conveying tire pressure and location information to a user. When the vehicle is stationary, each tire is struck in a preselected sequence so that each received tire pressure signal is automatically associated with one of the plurality of tire locations. | ||||||
| 48 | SYSTEM AND METHOD FOR TIRE PRESSURE MONITORING INCLUDING AUTOMATIC TIRE LOCATION RECOGNITION | US10157650 | 2002-05-29 | US20030164030A1 | 2003-09-04 | Keith Walker; John S. Nantz; Thomas Bejster; Bruce Conner |
| In a system for remote monitoring of vehicle tire pressure, a system and method for automatically identifying tire location. A tire pressure monitor mounted in each tire includes a sensor for sensing tire pressure, a transmitter for transmitting a signal representative of the sensed tire pressure, and a magnetic switch for actuating the transmitter. An electromagnets is mounted on the vehicle in proximity to each tire location and generates a magnetic field causing the magnetic switch to actuate the transmitter of the associated tire pressure monitor. A controller mounted on the vehicle is provided in communication with the electromagnets, processes the tire pressure signals from the transmitters, and conveys tire pressure and location information to a user. The controller energizes the electromagnets so that each received tire pressure signal is automatically associated with a specific tire location. | ||||||
| 49 | Modulated wave mechanical generator | US55485166 | 1966-06-02 | US3484786A | 1969-12-16 | LATTARD JEAN |
| 50 | System for producing amplitudemodulated signals | US37721153 | 1953-08-28 | US2906970A | 1959-09-29 | WYLDE RONALD J |
| 51 | Electromechanical amplifier | US36510453 | 1953-06-30 | US2901555A | 1959-08-25 | FREDRIK KLINKHAMER JACOB; DER BURGT CORNELIS MARTINUS VA; MEYER CLUWEN JOHANNES |
| 52 | Apparatus, method, and computer program for generating an oscillating signal | EP13306067.3 | 2013-07-23 | EP2830213A1 | 2015-01-28 | Wiegner, Dirk; Markert, Daniel; Templ, Wolfgang |
Embodiments relate to an apparatus, a method, and a computer program for generating an oscillating signal. The apparatus (10) is operable to generate an oscillating output signal and comprises a first coupling element (12) and a second coupling element (14), which is arranged in the proximity of and interacting with the first coupling element (12). The apparatus (10) further comprises an excitation module (16) operable to excite the first coupling element (12) and a combination module (18) operable to combine an output signal of the second coupling element (14) with a supplementary signal to obtain the oscillating output signal.
|
||||||
| 53 | THERMAL-MECHANICAL SIGNAL PROCESSING | EP04786553.0 | 2004-08-20 | EP1661240B1 | 2013-01-02 | ZALALUTIDINOV, Maxim; REICHENBACH, Robert, B.; AUBIN, Keith; HOUSTON, Brian, H.; PARPIA, Jeevak, M.; CRAIGHEAD, Harold, G. |
| 54 | RESONANT POWER CONVERTER FOR RADIO FREQUENCY TRANSMISSION AND METHOD | EP03713861.7 | 2003-03-04 | EP1488587B1 | 2007-05-09 | NORSWORTHY, Steven, R.; NORSWORTHY, Ross, W. |
| A resonant power converter (220) for ultra-efficient radio frequency transmission and associated methods is disclosed. In one exemplary embodiment, the invention is digitally actuated and uses a combination of a noise-shaped encoder (222), a charging switch (224), and a high-Q resonator (204) coupled to an output load (206), typically an antenna or transmission line. Energy is built up in the electric and magnetic fields of the resonator, which, in turn, delivers power to the load (206) with very little wasted energy in the process. No active power amplifier is required. The apparatus (220) can be used in literally any RF signal application (wireless or otherwise), including for example cellular handsets, local- or wide-area network transmitters, or even radio base-stations. | ||||||
| 55 | SHELL TYPE ACTUATOR | EP04786550.6 | 2004-08-20 | EP1661245A2 | 2006-05-31 | ZALALUTDINOV, Maxim; REICHENBACH, Robert, B.; AUBIN, Keith; HOUSTON, Brian, H.; PARPIA, Jeevak, M.; CRAIGHEAD, Harold, G. |
| A micromechanical resonator (400, 1125) is formed on a substrate (120). The resonator has a partial spherical shell (110) clamped on an outside portion of the shell to the substrate. In other embodiments, a flat disc or other shape may be used. Movement is induced in a selected portion of the disc, inducing easily detectable out-of-plane motion. A laser (1110) is used in one embodiment to heat the selected portion of the disc and induce the motion. The motion may be detected by capacitive or interferometric techniques. | ||||||
| 56 | THERMAL-MECHANICAL SIGNAL PROCESSING | EP04786553.0 | 2004-08-20 | EP1661240A2 | 2006-05-31 | ZALALUTDINOV, Maxim; REICHENBACH, Robert, B.; AUBIN, Keith; HOUSTON, Brian, H.; PARPIA, Jeevak, M.; CRAIGHEAD, Harold, G. |
| A source signal is converted into a time-variant temperature field with transduction into mechanical motion. In one embodiment, the conversion of a source signal into the time-variant temperature field is provided by utilizing a micro-fabricated fast response, bolometer-type radio frequency power meter. A resonant-type micromechanical thermal actuator may be utilized for temperature read-out and demodulation. | ||||||
| 57 | RESONANT POWER CONVERTER FOR RADIO FREQUENCY TRANSMISSION AND METHOD | EP03713861.7 | 2003-03-04 | EP1488587A1 | 2004-12-22 | NORSWORTHY, Steven, R.; NORSWORTHY, Ross, W. |
| A resonant power converter (220) for ultra-efficient radio frequency transmission and associated methods is disclosed. In one exemplary embodiment, the invention is digitally actuated and uses a combination of a noise-shaped encoder (222), a charging switch (224), and a high-Q resonator (204) coupled to an output load (206), typically an antenna or transmission line. Energy is built up in the electric and magnetic fields of the resonator, which, in turn, delivers power to the load (206) with very little wasted energy in the process. No active power amplifier is required. The apparatus (220) can be used in literally any RF signal application (wireless or otherwise), including for example cellular handsets, local- or wide-area network transmitters, or even radio base-stations. | ||||||
| 58 | A device incorporating a tunable thin film bulk acoustic resonator for performing amplitude and phase modulation | EP97307788.6 | 1997-10-01 | EP0834989B1 | 2003-09-10 | Ella, Juha |
| 59 | A device incorporating a tunable thin film bulk acoustic resonator for performing amplitude and phase modulation | EP97307788.6 | 1997-10-01 | EP0834989A3 | 1998-05-06 | Ella, Juha |
A Bulk Acoustic Wave (BAW) resonator (20) is provided which comprises a piezoelectric layer (22); a first and second protective layer (38b,a), a first electrode (24), a second electrode (26), a bridge (also referred to as a "membrane" (28), a pair of etch windows (40a,b), an air gap (34), and a substrate (36). A portion of the piezoelectric layer (22) is positioned atop the first electrode (24), and the second electrode (26) is positioned atop the piezoelectric layer (22); thereby forming a parallel plate structure between which the piezoelectric layer (22) is allowed to resonate or vibrate. The piezoelectric layer (22) comprises, by example, zinc-oxide (ZnO), and has a thickness of 1.7 µm. The electrodes (24,26) comprise, by example, gold (Au) and have thicknesses of 0.1 µm. The membrane (28) comprises two layers (30,32) namely a top layer (30) and a bottom layer (32). The top layer (30), which preferably has a thickness of 0.6 µm and comprises poly-silicon, has a top surface which is in contact with the first electrode (24) and portions of the piezoelectric layer (22). The top layer (30) is situated atop a portion of the bottom layer (32), which preferably has a thickness of 0.4 µm and is comprised of silicon-dioxide (SiO2). A portion of a bottom surface of the membrane (28) is situated adjacent to the air gap (34), which separates this portion of the membrane's bottom surface from a portion of the substrate (36). This air gap (34), which is typically filled with air but any suitable material may be used, is formed by etching a portion of the substrate (36). The air gap (34) is bounded by the etch windows (40a,b), by a portion of the first protective layer (38b), by the bottom surface portion of the membrane (28), and by inner faces (36b,c,d) of the substrate (36). The air gap (34) functions to isolate acoustic vibrations created by the piezoelectric layer (22) from the substrate (36). |
||||||
| 60 | MEMs Amplitude Modulator and MEMs Magnetic Field Sensor Including Same | US14913537 | 2014-08-05 | US20160211803A1 | 2016-07-21 | Chil Young JI; Yong Jun KO; Seung Hwa KWON; Sang Won SEO; Chul KIM; Jeong Gi SEO; Do Han JUN; Wan Seop CHOI |
| The present invention provides an amplitude modulator, which is disposed in an area through which a magnetic field flows so as to modulate amplitudes, comprising: a substrate; a first driving electrode which receives a first frequency signal and a second frequency signal supplied from the substrate and carries out resonant motion by the magnetic field; and a second driving electrode for receiving the second frequency signal and carries out resonant motion by the first driving electrode and the magnetic field, wherein a modulated signal is generated by modulating the amplitudes of the first and second frequency signals through the resonant motions of the first and second driving electrodes. Therefore, since the signal generated by modulating a carrier signal through mechanical resonance according to the magnetic field is outputted, amplitude modulation can be carried out without a complicated circuit configuration. In addition, since an MEMS device is a single structure that does not include an insulating layer, a single signal is applied to one structure, thereby simplifying driving, and all the driving electrodes of both ends thereof are driven so as to double a change in variable capacitance, thereby improving sensing ability. | ||||||
QQ群二维码
意见反馈
意见反馈