Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8184828 | Background noise estimation utilizing time domain and spectral domain smoothing filtering A system for estimating the background noise in a loudspeaker-room-microphone system is presented herein where the loudspeaker is supplied with a source signal and the microphone picks up the source signal distorted by the room and provides a distorted signal. The s... | 05/22/2012 |
| 8170221 | Audio enhancement system and method An audio enhancement system for compensating for ambient noise in a listening environment, comprises an audio system that produces an electrical sound signal and generates a sound output from the electrical sound signal. A sensor (e.g., a microphone) senses a total ... | 05/01/2012 |
| 8167314 | Distortion resistant face seal counterface system According to the present invention, an annular face seal arrangement for a gas turbine engine is provided that includes a mounting ring, a mounting member, a rotor, and a stator. The mounting ring has a width extending between a first axial end and a second axial en... | 05/01/2012 |
| 8160282 | Sound system equalization An automatic sound system equalizer adjusts a sound system to a target sound, where the sound system includes at least two groups of loudspeakers supplied with electrical sound signals to be converted into acoustical sound signals. The equalizer sequentially supplie... | 04/17/2012 |
| 8158434 | Method for performing counts within a biologic fluid sample A method for enumerating cellular elements and particulates within a biologic fluid sample is provided. According to one aspect of the invention, the method includes the steps of: a) providing a chamber formed between a first planar member that is transparent and a ... | 04/17/2012 |
| 8144882 | Sound tuning method The invention relates to a method for automated tuning of a sound system, the sound system comprising delay lines, equalizing filters, and at least two loudspeakers, the method comprising the steps of reproducing a useful sound signal through the loudspeakers, measu... | 03/27/2012 |
| 8143945 | Switched mode amplifier A switched mode amplifier includes a voltage source, a switched amplifier, a controller and a feedback unit. The switched amplifier sources or sinks a current to or from a load. The load and the current define a voltage over the load. The controller generates contro... | 03/27/2012 |
| 8139783 | Speaker assembly arrangement for a vehicle and method of mounting a speaker A speaker assembly arrangement for a vehicle is provided that includes a speaker unit including a speaker cabinet defining a first volume and a body part of a vehicle including a hollow member defining a second volume. The speaker cabinet is acoustically coupled to ... | 03/20/2012 |
| 8136654 | Auger conveyer An auger conveyor is provided that includes a housing, at least one first mounting bracket, at least one second mounting bracket, an auger screw and one or more auger support assemblies. The first mounting bracket has a first landing and the second mounting bracket ... | 03/20/2012 |
| 8133738 | Method and apparatus for determining the hematocrit of a blood sample utilizing the intrinsic pigmentation of hemoglobin contained within the red blood cells A method for determining the hematocrit of a blood sample is provided that includes the steps of: 1) depositing the sample into an analysis chamber adapted to quiescently hold the sample for analysis, the chamber defined by the interior surfaces of first and second ... | 03/13/2012 |
| 8117918 | Method and apparatus for determining pipewall thickness using one or more ultrasonic sensors A method for measuring the thickness of a pipe wall is provided. The method includes the steps of: 1) emitting ultrasonic signals into the pipe wall at one or more frequencies below 1 MHz and receiving reflected ultrasonic signals, and providing a sensor signal repr... | 02/21/2012 |
| 8116481 | Audio enhancement system A system for enhancing the sound signal produced by an audio system in a listening environment by compensating for ambient noise in the listening environment is provided. The system receives an electrical sound signal and generates a sound output therefrom. A total ... | 02/14/2012 |
| 8116474 | System for suppressing ambient noise in a hands-free device In order to suppress as much noise as possible in a hands-free device in a motor vehicle, for example, two microphones (M1, M2) are spaced a certain distance apart, the output signals (MS1, MS2) of which are added in an adder (AD) and sub... | 02/14/2012 |
| 8113073 | Lead screw nut support arrangement A lead screw nut support arrangement includes a wall having a width and a through hole that passes through the wall. A support bushing passes through the through hole in the axial direction, leaving an amount of play, and having a length greater than the thickness o... | 02/14/2012 |
| 8110795 | Laser system for MALDI mass spectrometry Mass spectrometry with lasers generates ions from analyte molecules by matrix assisted laser desorption for a variety of different mass spectrometric analysis procedures. The mass spectrometers with laser systems supply laser light pulses having at least two differe... | 02/07/2012 |
| 8105039 | Airfoil tip shroud damper A turbine disk includes a rotor and a plurality of turbine blades, each comprising a root at a proximal end secured to the rotor and a tip having a shroud at a distal end. The shroud includes a inner diameter surface, an outer diameter surface and a segmented sidewa... | 01/31/2012 |
| 8103024 | Door with structural components configured to radiate acoustic energy A door leaf includes a stiff, light structural part that maintains fed-in vibrational energy and, by flexural waves, propagates this energy in at least one active surface perpendicular to its thickness to distribute resonance mode vibration components over at least ... | 01/24/2012 |
| 8098769 | Circuit and method for recovering a carrier The invention relates to recovering a carrier for a synchronous demodulator, that receives an input signal. A carrier is reconstructed for the provided input signal, and the input signal (in) and carrier (tr) are mixed to generate a mixed signal to be outputted (i, ... | 01/17/2012 |
| 8097834 | Liquid heating vessels A liquid heating vessel comprising heating means for heating liquid in the vessel, electronic control means, electromagnetic switching means for interrupting or reducing power to the heating means, and temperature sensing means for providing a signal dependent on th... | 01/17/2012 |
| 8095743 | Memory access control in a multiprocessor system Access to a memory area by a first processor that executes a first processor program and a second processor that executes a second processor program is granted to one of the first processor and the second processor at a time. Access to the memory area by the first p... | 01/10/2012 |
| 8083489 | Hybrid structure fan blade A hybrid fan blade for a gas turbine engine is provided that includes an airfoil and a composite panel. The airfoil has a first side and a second side orientated opposite the first side. The first and second sides extend between a tip, a base, a leading edge and a t... | 12/27/2011 |
| 8081303 | Method and apparatus for analyzing individual cells or particulates using fluorescent quenching and/or bleaching A method for analyzing a blood sample is provided that includes the steps of: a) providing a blood sample having one or more first constituents and one or more second constituents, which second constituents are different from the first constituents; b) depositing th... | 12/20/2011 |
| 8078250 | Method for spectrophotometric blood oxygenation monitoring A method and apparatus for non-invasively determining the blood oxygenation within a subject's tissue is provided that utilizes a near infrared spectrophotometric (NIRS) sensor capable of transmitting a light signal into the tissue of a subject and sensing the light... | 12/13/2011 |
| 8077312 | Calibration device for a spectrophotometric system A method and apparatus for calibrating an NIRS system which includes a sensor portion and for evaluating an NIRS system for proper functioning is provided that includes an enclosure with at least two windows disposed in a wall of the enclosure. The windows allow the... | 12/13/2011 |
| 8077296 | Method and apparatus for detecting and counting platelets individually and in aggregate clumps A method for enumerating platelets within a blood sample is provided. The method includes the steps of: 1) depositing the sample into an analysis chamber adapted to quiescently hold the sample for analysis, the chamber defined by a first panel and a second panel, bo... | 12/13/2011 |
| 8061186 | System and method for providing a compositional measurement of a mixture having entrained gas A method and apparatus for determining at least one characteristic of a fluid flowing within a pipe is provided. The fluid flow may include one or more liquid component bodies and one or more gas component bodies, which bodies occupy a substantial cross-sectional ar... | 11/22/2011 |
| 8054204 | Method for remotely updating wireless sensors A method and system is provided for updating a sensor disposed within a mobile unit. The method includes the steps of: a) providing a remote server and at least one sensor, which remote server and sensor are located in the mobile unit and are in communications with ... | 11/08/2011 |
| 8047747 | Rotary cutting tool A rotary cutting tool is provided having an axis of rotation, a shank section, a fluted section, and a plurality of helical teeth. The shank section and the fluted section both extend along the axis of rotation. The fluted section has a first end integrally attached... | 11/01/2011 |
| 8045165 | Method and apparatus for determining a focal position of an imaging device adapted to image a biologic sample A method and apparatus for focusing a device for imaging a biologic sample is provided. A method aspect of the disclosure includes the steps of: 1) disposing lenslets within a field of a biologic sample, which lenslets have a height, and have a refractive index and ... | 10/25/2011 |
| 8036641 | Method for operating a playback unit in a vehicle, for playing back data stored on a data medium A system for use in a motor vehicle includes a wireless receiver that receives, over a wireless communication channel, supplemental information representative of the characteristics of the contents of a playback media, and provides received supplemental information ... | 10/11/2011 |
| 8035031 | Data transmission A system for data transmission over an electricity distribution network. The system having an electrical apparatus having a shielded cable connected thereto. The cable has a core surrounded by a metallic sheath and armour surrounding the metallic sheath, wherein the... | 10/11/2011 |
| 8023668 | System for predicting the behavior of a transducer A system for compensating and driving a loudspeaker includes an open loop loudspeaker controller that receives and processes an audio input signal and provides an audio output signal. A dynamic model of the loudspeaker receives the audio output signal, and models th... | 09/20/2011 |
| 8005672 | Circuit arrangement and method for detecting and improving a speech component in an audio signal An audio processing system includes a speech detector that receives and processes an audio input signal to determine if the input signal includes components indicative of speech, and provides a control signal indicative of whether or not the audio input signal inclu... | 08/23/2011 |
| 8003938 | Apertured diaphragms between RF ion guides An apertured diaphragm disposed with an RF ion guide includes at least one of a weakly conductive solid dielectric material and a non-conducting dielectric with a weakly conducting surface layer. ... | 08/23/2011 |
| 8002533 | Injection molding machine for lost core technology An injection molding machine (10) comprises an injection molding tool (14) having a mold cavity, in which a molded part can be produced by overmolding a mold core of metal inserted into the mold cavity using an injection molding material, and a melting... | 08/23/2011 |
| 7995194 | Virtual separation of bound and free label in a ligand assay for performing immunoassays of biological fluids, including whole blood Detection and characterization of immunologically detected substances are performed electronically on human and animal biological fluids such as whole blood, serum, plasma, urine, milk, pleural and peritoneal fluids, and semen, which fluids are contained in a thin c... | 08/09/2011 |
| 7992838 | Ball poppet valve having valve body widening in funnel shape The invention relates to a ball poppet valve, in particular an electromagnetically actuated ball poppet valve, having a valve body, an accommodating aperture disposed in the valve body for a ball poppet, and a valve bore also disposed in the valve body, a ball poppe... | 08/09/2011 |
| 7982799 | Method and device for interpolation of an image information value for pixel of an interline The invention relates to interpolation of an image information value for a pixel of an interline. The method comprises selecting, from a number of image directions, to each of which a direction quality value is assigned, a direction of interpolation by comparing the... | 07/19/2011 |
| 7975559 | Apparatus for attenuating ultrasonic waves propagating within a pipe wall A damping device for a fluid flow meter is provided. The fluid flow meter is mountable on the exterior of a pipe to meter fluid flow traveling within the pipe. The flow meter has at least one ultrasonic sensor operable to transmit ultrasonic signals through a wall i... | 07/12/2011 |
| 7969820 | Mobile object communication and position determination An ultrasound position determination system includes a base unit and at least one mobile unit. Each of the mobile and base units are operable to transmit and receive ultrasonic signals. The mobile unit is adapted to transmit a predetermined signal in dependence upon... | 06/28/2011 |