Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7514852 | Piezooscillator A piezooscillator having a piezoelectric vibrator and an oscillation circuit in a space surrounded by a substrate and a cover, which has a smaller size and height, and further, which can be assembled easily and suppress power consumption, is provided. The piezooscil... | 04/07/2009 |
| 7378781 | Acoustic wave resonator with integrated temperature control for oscillator purposes The present invention relates to a resonator structure, temperature compensation method and temperature control apparatus for controlling local temperature of a resonator structure. At least one heating element (55) is integrated on a substrate of the resonat... | 05/27/2008 |
| 7379742 | Multi-carrier communications with adaptive cluster configuration and switching A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating a... | 05/27/2008 |
| 7378780 | Surface mount type crystal oscillator A surface mount type crystal oscillator includes: a container body composed of a laminated ceramic including a plate-shaped center layer, and first and second frame layers stacked on opposite surfaces of the center layer respectively; a crystal blank hermetically se... | 05/27/2008 |
| 7248131 | Monolithic vertical integration of an acoustic resonator and electronic circuitry Monolithic devices that include an acoustic resonator vertically integrated with electronic circuitry are described. In one aspect, a monolithic integrated device includes a substrate, electronic circuitry supported by the substrate, an acoustic isolator over the el... | 07/24/2007 |
| 7235914 | Piezoelectric micro-transducers, methods of use and manufacturing methods for same Various micro-transducers incorporating piezoelectric materials for converting energy in one form to useful energy in another form are disclosed. In one embodiment, a piezoelectric micro-transducer can be operated either as a micro-heat engine, converting thermal en... | 06/26/2007 |
| 7229821 | Acoustic wave RFID/biosensor assemblies A deployable acoustic wave RFID/biosensor assembly has at least one protective layer, and an acoustic wave RFID/biosensor within the protective layer or layers. The acoustic wave RFID/biosensor includes an acoustic wave device, a biolayer mounted on the acoustic wav... | 06/12/2007 |
| 7196405 | Silicon package with integral heater A hermetic package for electronic components which is made of metallic silicon is disclosed. The package includes a plurality of silicon elements which are bonded together. A metallic layer of platinum or gold is bonded to an internal surface of the hermetically sea... | 03/27/2007 |
| 7116182 | Method and system for downhole clock having compensation A downhole crystal-based clock that is substantially insensitive to the factors that cause frequency deviation. The clock may be maintained at a predetermined temperature using a temperature sensing device and a heating device, where the predetermined temperature co... | 10/03/2006 |
| 7113051 | Frequency characterization of quartz crystals Techniques for determining a frequency profile of a quartz crystal in real time. Quartz crystals are subjected to a series of temperature cycles at various temperature rates and the crystal frequencies, crystal temperature parameters, and the temperature rates are m... | 09/26/2006 |
| 7088032 | Crystal oscillator A crystal oscillator of the present invention includes: a substrate provided in a package; a heating device arranged as surrounding an internal area of the substrate on at least one of the surfaces of the substrate; a crystal resonator or a crystal element and an os... | 08/08/2006 |
| 7071598 | Thin and highly stable piezoelectric oscillator, and thin and surface-mounting type highly stable piezoelectric oscillator A thin and highly stable piezoelectric oscillator is provided with a piezoelectric vibrator, a mother printed board which supports a piezoelectric vibrator main body on its one face and connects lead terminals to a wiring pattern, oscillating circuit parts which are... | 07/04/2006 |
| 7042140 | Piezoelectric-transformer and carrier arrangement A piezoelectric-transformer and carrier arrangement in which the carrier is press-molded from elastic material, for example, silicon rubber and has integrated binding belt and retainers for securing the piezoelectric-transformer to the carrier body, for enabling the... | 05/09/2006 |
| 7038355 | Tunable microresonator on an insulating beam deformable by the difference in thermal expansion coefficients A device comprising a resonator formed of a piezoelectric layer sandwiched between two metal electrodes, the resonator being laid on a suspended beam, the device comprising means for deforming said beam by the difference in thermal expansion coefficients. ... | 05/02/2006 |
| 7034440 | Generator for use with a micro system having dual diaphragms A micro-electro-mechanical generator is provided with a housing having a heat source and a heat sink opposite to the heat source in the housing. An upper diaphragm and a lower diaphragm separated from the upper diaphragm by a constant distance are further provided, ... | 04/25/2006 |
| 6958566 | Mechanical resonator device having phenomena-dependent electrical stiffness A mechanical resonator device which has a phenomena-dependent electrical stiffness is provided. The phenomena may be temperature or acceleration, for example. The device includes a substrate and a resonator supported above the substrate by supports. The device furth... | 10/25/2005 |
| 6955787 | Integrated biological and chemical sensors An array of piezoelectric resonators used in a sensor device in order to identify chemical and biological agents. The resonators can operate as bulk acoustic wave (BAW), surface acoustic wave (SAW), or Love mode devices. The sensor device integrates gravimetric, cal... | 10/18/2005 |
| 6806624 | Microelectromechanical generator using bubbles A micro-electro-mechanical generator has a liquid chamber, a heating block, an elongated elastic piezoelectric plate and a pair of electrodes. The liquid chamber is defined by bottom blocks which include the heating block and side walls, and can maintain a liquid. T... | 10/19/2004 |
| 6731180 | Evacuated hybrid ovenized oscillator The present invention is for a thermally controlled package for oscillators, particularly evacuated miniature surface acoustical wave oscillators (EMSO) devices. In a preferred embodiment the surface acoustical wave device is bonded directly to a heated substrate. T... | 05/04/2004 |
| 6501340 | Oscillator with frequency stabilizing circuit and method of constructing same An apparatus and method for stabilizing the frequency of a piezoelectric crystal resonator, especially useful in common emergency positioning radio beacons. A temperature compensated crystal oscillator circuit (TCXO) is mounted on one surface of a thin su... | 12/31/2002 |
| 6147565 | Piezo-oscillator with heater and temperature control circuit There are disposed on a printed substrate a crystal resonator as a piezoelectric resonator, an oscillation circuit, a plurality of surface mount heaters and a temperature controlling circuit for controlling a heating temperature of the heaters. A case of ... | 11/14/2000 |
| 6133674 | Low profile integrated oscillator having a stepped cavity A low profile integrated oscillator operable to provide an oscillator signal includes a thermally conductive substrate having a cavity and a ledge. A crystal or other resonator is located in the cavity and mounted to the ledge. The resonator stabilizes th... | 10/17/2000 |
| 6060692 | Low power compact heater for piezoelectric device A heater apparatus (10) for a piezoelectric device (12) includes a resistive heating element (18) on an insulating substrate (14). The heating element (18) maintains a temperature of the piezoelectric device (12) within a predetermined temperature range. ... | 05/09/2000 |
| 6049256 | Low profile ovenized oscillator packing having a high thermal conductivity substrate A low profile integrated oscillator operable to provide an oscillator signal includes a substrate having a cavity and a via passing through the substrate. A crystal or other resonator is disposed in the cavity and stabilizes the oscillator signal. An elec... | 04/11/2000 |
| 5917272 | Oven-heated crystal resonator and oscillator assembly A crystal resonator assembly is described wherein a piezo-electric resonator is mounted over a heat conducting substrate and one or more heat generating elements are located on the substrate. The heating elements provide heat both by conduction and radiat... | 06/29/1999 |
| 5729181 | High thermal gain oven with reduced probability of temperature gradient formation for the operation of a thermally stable oscillator An oven assembly for a crystal resonator and oscillator utilizes a thermally symmetrical design to provide a high thermal gain. The oven assembly includes an encasement that forms a hermetically sealed oven chamber that is substantially cylindrical. Conce... | 03/17/1998 |
| 5659270 | Apparatus and method for a temperature-controlled frequency source using a programmable IC A substantially sealed frequency source (10) including a crystal oscillator (14) and a programmable IC (22) thermally and electrically coupled on a substrate (12). The IC (22) is accessed through an interface (26) with programming signals (42) so as to pr... | 08/19/1997 |
| 5585686 | Vibration type actuator device A vibration type actuator device, and particularly a vibration type actuator device is heated for a predetermined time at the starting of the actuator device, and is operated thereafter.... | 12/17/1996 |
| 5475278 | Method for driving piezoelectric actuator A piezoelectric actuator is driven by continuously applying a pulse voltage or an AC voltage to a piezoelectric element, so as to cause the piezoelectric element to generate heat because of a dielectric loss of the piezoelectric element itself. If the tem... | 12/12/1995 |
| 5289075 | Resonator for a thermostatically-controlled oscillator having low power consumption and rapid heating The present invention relates to a piezoelectric resonator having adherent or non-adherent electrodes, the piezoelectric crystal comprising a central portion and a peripheral portion forming a ring that surrounds the central portion and that is connected ... | 02/22/1994 |
| 5239518 | Low frequency sonar projector and method A low frequency sonar projector for use with a projector array having at least one ceramic stack comprised of lead magnesium niobate-lead titanate (PMN-PT) having a Curie temperature Tm approximately equal to the operating temperature of the projector. A ... | 08/24/1993 |
| 5200714 | Crystal oscillator with quartz vibrator having temperature detecting faculty, quartz vibrator for use therein, and method of measuring temperature using quartz vibrator A crystal oscillator for generating an output oscillation whose frequency is maintained constant independently of the variation of temperature including a first quartz vibrator arranged in a heating unit which includes a thermostat and vibrating at a fund... | 04/06/1993 |
| 5180942 | Thermally isolated ovenized crystal oscillator Heat-generating ovenized crystal oscillators can be directly mounted to a circuit board. Thermal isolation of an OCO from heat-sinking circuit board material and other temperature-sensitive components on a circuit board is accomplished by means of perfora... | 01/19/1993 |
| 5025228 | Ultrastable oscillator functioning at atmospheric pressure and under vacuum A piezoelectric resonator (1) consists of a piezoelectric reed (2) encased in a housing composed of a cap (7) and a base (8). The resonator (1) is placed in a thermostatically controlled containment (10). The thermostatically controlled containment (10) c... | 06/18/1991 |
| 4985687 | Low power temperature-controlled frequency-stabilized oscillator A quartz crystal resonator is situated in an enclosure whose interior is substantially a vacuum. A heating element is attached to the crystal surface. A sensor is attached to the crystal enclosure, and may be sandwiched between the crystal enclosure and t... | 01/15/1991 |
| 4845337 | Ovenized oscillator assembly An ovenized oscillator having a temperature sensitive section of an oscillator and a heater supported in a chamber within an enclosure having an insulating gas surrounding the oscillator section and heater. Insulating walls may be added within the chamber... | 07/04/1989 |
| 4748367 | Contact heater for piezoelectric effect resonator crystal A contact heater arrangement is disclosed for a piezoelectric effect crystal resonator. The piezoelectric effect crystal element may be an SC cut quartz crystal disc having electrodes affixed to one side thereof to generate a lateral field in the crystal ... | 05/31/1988 |
| 4719384 | Miniature thermostatted oscillator This invention relates to a thermostatted oscillator comprising an assembly support constituted by a printed circuit provided with an opening, on the edge of which is fixed, at a reduced number of points, an electrically insulating secondary support on wh... | 01/12/1988 |
| 4611182 | Method and device for controlling the heating of a thermostatically controlled enclosure for an oscillator A method and a device for regulating the heating of a thermostatically controlled enclosure of a quartz oscillator. During a first stage, the thermostatically controlled enclosure is exposed to an external temperature close to the maximum operating temper... | 09/09/1986 |
| 4573027 | Bulk acoustic resonator tracking filter This invention is directed to a narrow band filter for eliminating out-of-band noise in the oscillator signal of a doppler radar system. It provides a very high Q filter derived from a Bulk Acoustic Resonator's (BAR) high Q, L-Band response and uses therm... | 02/25/1986 |
