"There is practically no chance communications space satellites will be used to provide better telephone, telegraph, television, or radio service inside the United States."
T. Craven, FCC Commissioner ; 1961
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| Number | Title | Issue Date |
| 8123399 | Dielectric resonator thermometer and a method of using the same A thermometer is provided. A housing has at least one opening. A dielectric element is disposed in the housing. At least one microwave guide is coupled to the at least one opening for providing a signal into the dielectric element for propagation at a resonant frequ... | 02/28/2012 |
| 8100581 | Method of determining the presence of a mineral within a material The invention relates generally to a method of determining the presence of a mineral within a material, such as a rock, a rock fragment, soil, sand or other geological material including: applying pulsed microwave radiation to the material; detecting radiation emitt... | 01/24/2012 |
| 7362818 | Amplitude and phase comparator for microwave power amplifier A predistortion power amplifier architecture has a power amplifier which receives an input via an amplitude modulator and a phase modulator. A sample of the output of the amplifier and a sample of the input to the amplifier are applied to an adaptive pre-distorter s... | 04/22/2008 |
| 7338201 | Method of estimating the temperature of the air in the internal cavity of a tire and application to the detection of abnormal operating of a running-flat system A method of estimating the temperature of the air in the internal cavity of a tire in which: prior to normal operation, a series of running tests are carried out on the tire provided with a means of measuring the internal air tempe... | 03/04/2008 |
| 7292182 | Method of calibrating a microwave source The present invention relates to a method for calibrating the phase of a microwave source, in which: a calibration circuit is closed, the calibration circuit comprising an injection channel connected to a measurement channel via the source to be calibrated; a test s... | 11/06/2007 |
| 7239122 | Multi-channel radiometer imaging system A radiometer system includes a housing and an RF board contained within the housing. Balanced radiometer channels receive an unknown signal and known reference. Each balanced radiometer channel includes at least one quadrature hybrid and amplifier circuit to provide... | 07/03/2007 |
| 7221141 | Switched measuring system and method for measuring radiant signals A system for measuring radiant signals includes a detector circuit for detecting a time multiplexed, measured radiant signal and reference signal. A switch is connected to the detector circuit for receiving signals from the detector circuit. A measured signal sampli... | 05/22/2007 |
| 7221139 | Multi-channel radiometer imaging system A radiometer system includes a housing and an RF board contained within the housing. Balanced radiometer channels receive an unknown signal and known reference. Each balanced radiometer channel includes at least one quadrature hybrid and amplifier circuit to provide... | 05/22/2007 |
| 7199570 | Multi-channel radiometer imaging system A radiometer includes a housing and an RF board carried by the housing. A hybrid and amplifier circuit receives an unknown signal and a known reference signal. A switch receives signals as inputs from the hybrid and amplifier circuit and switches between the inputs.... | 04/03/2007 |
| 7197356 | Microwave detection apparatus Microwave detection apparatus includes an intravascular catheter containing inner and outer conductors, the distal ends of the conductors forming an antenna at a distal end of the catheter. A gap is provided in the inner conductor near the antenna thereby forming sp... | 03/27/2007 |
| 7148456 | Method and apparatus for microwave phosphor synthesis A method of microwave synthesis of phosphors includes a microwave furnace having a microwave chamber; providing starting material in the microwave chamber; and subjecting the starting material to microwaves, whereby the starting material is synthesized into phosphor... | 12/12/2006 |
| 7121719 | Radio-thermometer system and method for measuring electromagnetic energy radiated from an interior of a human body using the same A radio-thermometer system, and a method for measuring electromagnetic energy radiated from an interior of a human body, includes an antenna for receiving thermal energy radiated from a target object having a temperature to be measured, first and second noise source... | 10/17/2006 |
| 7088086 | Multi-channel radiometer imaging system A radiometer includes a housing and an RF board carried by the housing. A hybrid and amplifier circuit receives an unknown signal and a known reference signal. A switch receives signals as inputs from the hybrid and amplifier circuit and switches between the inputs.... | 08/08/2006 |
| 7088089 | Power detector with constant voltage decoupling A power detector for measuring the average power, without constant voltage, of modulated or unmodulated high frequency or microwave signals is described. The power detector includes a signal line connected to a high frequency input. A detection line is capacitively ... | 08/08/2006 |
| 7059765 | Temperature measuring apparatus and related improvements An apparatus for measuring the temperature of an object. The apparatus includes a device for establishing a standing wave pattern or radiation emanating from the object and a coupling device for coupling the radiation to a detector, such as a measuring radiometer. | 06/13/2006 |
| 7052176 | Remote temperature measuring system for hostile industrial environments using microwave radiometry A system and method for remotely measuring the temperature of an object using microwave radiometry that may be used in hostile environments. A single pole-single throw reflective PIN diode switch is operable in a PASS mode and a BLOCK mode. In the PASS mode, the swi... | 05/30/2006 |
| 7034516 | Multi-channel radiometer imaging system A radiometer system includes a housing and an RF board contained within the housing. Balanced radiometer channels receive an unknown signal and known reference. Each balanced radiometer channel includes at least one quadrature hybrid and amplifier circuit to provide... | 04/25/2006 |
| 7001066 | Infrared thermometer and waveguide for infrared thermometer An infrared thermometer comprises a detecting portion provided with a waveguide (8) having a tubular conformation and capable of conveying the infrared radiation emitted from a detecting surface towards a sensor member (7) housed within the infrared-th... | 02/21/2006 |
| 6972692 | Method and device for increasing effective radiated power from a subscriber device A subscriber device (10) includes one or more sensors (102) for measuring a object electromagnetic characteristic, such as conductivity, permittivity or permeability. A controller (104) stores the object electromagnetic parameter in memory (1... | 12/06/2005 |
| 6964514 | Temperature measuring apparatus An improved apparatus for measuring the temperature of an object such as a food object. Also, a related method, container, transportation member and production line which utilizes this apparatus. The apparatus includes a coupling device for coupling radiation emanat... | 11/15/2005 |
| 6932776 | Method and apparatus for detecting and treating vulnerable plaques Apparatus for detecting vulnerable plaques embedded in the wall of a patient's blood vessel includes an intravascular catheter containing a microwave antenna, an extra-corporeal radiometer having a signal input, a reference input and an output, a cable for electrica... | 08/23/2005 |
| 6931333 | Electrical power sensing The RF power passing through a given position in a monolithic microwave integrated circuit (MMIC) is determined using the Seebeck effect. The MMIC includes at least certain components of a voltage creating circuit, including a first Seebeck junction on the MMIC at a... | 08/16/2005 |
| 6834991 | Radiometer with programmable noise source calibration Apparatus and a method for radiometric temperature measurement comprises a radiometer receiver coupled to an antenna/calibration switch that has coupled thereto a brightness temperature signal. A driver coupled to the antenna/calibration switch controls the operatio... | 12/28/2004 |
| 6773159 | Non-invasive apparatus for measuring a temperature of a living body and method therefor A non-invasive apparatus and method for measuring a temperature of a portion of a living body, includes a signal receiving unit receiving electromagnetic wave signals emitted from the portion of a living body to be measured, a signal processing unit processing the e... | 08/10/2004 |
| 6767129 | Microwave power sensor and method for manufacturing the same A microwave power sensor and a method for manufacturing the same. The microwave power sensor includes a semiconductor substrate with a nitride or oxide film formed thereon. A membrane which is a portion of the nitride or oxide film is floated by removing a portion o... | 07/27/2004 |
| 6755031 | Infrared sensor assembly and refrigerator having the infrared sensor Disclosed are an infrared sensor assembly and a refrigerator having the infrared sensor, in which a location where a heat source is generated is precisely detected by narrowing a receiving angle of an infrared sensor. To this end, the infrared sensor assembly compri... | 06/29/2004 |
| 6729756 | Method for calibrating a total-power microwave radiometer for a satellite A method for calibrating a total-power microwave radiometer for a satellite uses a cold calibration source, a hot calibration source and a receiver. The method has the steps of measuring with the receiver the brightness temperatures of the hot calibration source hav... | 05/04/2004 |
| 6719068 | Probing device with microwave transmission Geological probing device comprising a hollow probing rod to be extended into the geological matter to be probed, and a measuring probe fitted to the probing rod, said measuring probe comprising sensors for obtaining information about the matter. The measurin... | 04/13/2004 |
| 6543933 | Non-invasive 3-D intracranial thermography system A microwave thermography apparatus to measure temperatures within a dielectric body comprises a partial ellipsoidal cavity with an electrical conductive surface wherein the body can be located at one focus of the cavity. A microwave antenna located at a s... | 04/08/2003 |
| 5829877 | Method for measuring temperature of at least one of a gas and a flame in a combustion process A measuring technique and method are provided to simultaneously determine the molecular density of several molecular species and the temperature within a closed process room in a melting or combustion process. In such processes in the industry, e.g. in me... | 11/03/1998 |
| 5785426 | Self-calibrated active pyrometer for furnace temperature measurements Pyrometer with a probe beam superimposed on its field-of-view for furnace temperature measurements. The pyrometer includes a heterodyne millimeter/sub-millimeter-wave or microwave receiver including a millimeter/sub-millimeter-wave or microwave source for... | 07/28/1998 |
| 5688050 | Temperature-measuring microwave radiometer apparatus Disclosed are four improvements in temperature-measuring radiometric equipment. The first improvement is directed to increasing the sensitivity of a radiometer by employing microwave noise power derived from a reference noise source in an amount that corr... | 11/18/1997 |
| 5550355 | Microwave oven driving control method and apparatus thereof During operation of a microwave oven, steps are taken to determine whether the oven is being operated in the absence of food therein and to shut down the oven if that state is found to exist. Initially, a high frequency detector disposed in the cooking ch... | 08/27/1996 |
| 5526676 | Profiling of selected atmospheric characteristics utilizing passive microwave remote sensing Apparatus and methods for profiling atmospheric temperature, water vapor and/or cloud liquid content utilizing passive microwave remote sensing are disclosed. The apparatus includes an antenna for receiving atmospheric microwave emissions having frequenci... | 06/18/1996 |
| 5370458 | Monolithic microwave power sensor A monolithic integrated circuit power sensor provides a monolithic integrated circuit substrate a conversion element formed either on or in the substrate for converting microwave energy into heat, an electrically insulating dielectric layer affixed to the... | 12/06/1994 |
| 5302024 | Monolithic microwave power sensor using a heat sensing diode junction A monolithic integrated circuit power sensor provides a monolithic integrated circuit substrate, a conversion element formed either on or in the substrate for converting microwave energy into heat, and a thermally sensitive diode junction formed in suffic... | 04/12/1994 |
| 5254820 | Artificial dielectric tuning device for microwave ovens An apparatus is suitable for use in a microwave oven. An artificial dielectric is located adjacent or within a food product cooking stack in the microwave oven. A support media supports the artificial dielectric in the cooking stack at a desired distance ... | 10/19/1993 |
| 5209355 | Method and an apparatus for sorting solids A method and an apparatus for sorting particulate solids material. The material is subjected to a microwave field and absorbs energy to an extent depending upon the dielectric properties of the individual particles. The absorbed energy heats the particles... | 05/11/1993 |
| 5176146 | Method for the measurement of temperatures by microwave radiometry, with automatic calibration of the measurement, and device for operating this method The device comprises a microwave detector, a short-circuit microwave, a first modulator, or microwave-switch, a circulator with three successive channels, at least two sources of internal reference temperatures, a second modulator or microwave-switch, pos... | 01/05/1993 |
| 5149198 | Temperature-measuring microwave radiometer apparatus Disclosed are the following three improvements to apparatus employing a microwave radiometer to measure the temperature of a specimen: By situating a low-loss, high-temperature dielectric microwave antenna, which may be composed of low-loss alumina cerami... | 09/22/1992 |