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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 |
| 8159233 | Passive capacitively-coupled electrostatic (CCE) probe arrangement for detecting in-situ arcing events in a plasma processing chamber An arrangement for detecting in-situ arcing events within a processing chamber of a plasma processing system during substrate processing is provided. The arrangement includes a probe arrangement, which is disposed on a surface of the processing chamber and is config... | 04/17/2012 |
| 8030950 | Method and device for measuring the capacitance of a capacitive component A method of measuring the capacitance of a capacitive component (21), whereby a digital bridge with two measuring branches generates a first signal (B1) defined by a train of measuring pulses (M) having a frequency (f1) related to the un... | 10/04/2011 |
| 7667468 | Capacitive sensor with ratiometric voltage references A capacitive sensor with ratiometric voltage references includes a voltage source, a charge transfer switch, an integrating capacitor, and a comparator. The voltage source is configured to generate a first voltage reference and a second voltage reference in response... | 02/23/2010 |
| 7652487 | Circuit arrangement for detecting the capacitance or change of capacitance of a capacitive circuit element or of a component A circuit arrangement is described for detecting the capacitance or change of capacitance of a capacitive circuit element or of a component, specifically of a sensor capacitor (1), with a control unit (2) ,with a monostable multivibrator (3) tri... | 01/26/2010 |
| 7609072 | Processing tantalum capacitors on assembled PWAs to yield low failure rate A method of conditioning tantalum capacitors on printed wire assemblies is disclosed. According to the method, each of the capacitors on an assembly is subjected to the same conditioning level during testing. To condition the tantalum capacitors, surge currents are ... | 10/27/2009 |
| 7589538 | Micropower voltage-independent capacitance measuring method and circuit A circuit for measuring an unknown capacitance includes a reference capacitor having a known capacitance, an oscillator timing circuit, a variable frequency oscillator and a microcontroller. The oscillator timing circuit includes switches which selectively couple th... | 09/15/2009 |
| 7541816 | Capacitive sensor In a capacitive sensor, a sensing electrode is positively charged, the sensing electrode and a sensing capacitor are charge-balanced, the sensing electrode is negatively charged, and then the sensing electrode and the sensing capacitor are again charge-balanced. The... | 06/02/2009 |
| 7423436 | Capacitive level measurement and detection device using high frequency voltage A device for measurement and detection of the level of a medium in a container with a sensor element, with a reference element and an electrical circuit which contains at least one AC voltage source and an evaluation unit, the sensor element and the reference elemen... | 09/09/2008 |
| 7397253 | Transmission line pulse (TLP) system calibration technique A transmission Line Pulse (TLP) device calibration method wherein the TLP device includes a pulse generator for generating a pulse, a cable having an input terminal coupled to said pulse generator, an output terminal, and at least one ground return terminal, for cou... | 07/08/2008 |
| 7368920 | Potential fixing device and potential fixing method An electric potential fixing apparatus of the present invention is an electric potential fixing apparatus that is connected to a connection line (17) between two capacitances, the first capacitance (14) and the second capacitance (15) that is di... | 05/06/2008 |
| 7369240 | Apparatus and methods for real-time adaptive inspection for glass production An apparatus and methods for the real-time inspection for defects in and on transparent sheets, such as a sheet of glass, are described. A sensor detects a transparent light reflective coating on a transparent sheet and defines a sample profile. An optical inspectio... | 05/06/2008 |
| 7368922 | Method and device for determining parameters of fluctuating flow The invention relates to a method and a device for determining the parameters of a fluctuating flow of a fluid in a pipe, wherein at least three electrodes that are placed at a distance from one another in the direction of flow are provided in the periphery of the f... | 05/06/2008 |
| 7366338 | Automated document processing system using full image scanning A document processing system comprises an input receptacle for receiving documents. A transport mechanism receives the documents from the input receptacle and transports the documents past a full image scanner and a discrimination unit. An output receptacle receives... | 04/29/2008 |
| 7362891 | Automated document processing system using full image scanning A document processing system comprises an input receptacle for receiving documents. A transport mechanism receives the documents from the input receptacle and transports the documents past an image scanner and a discrimination unit. An output receptacle receives the... | 04/22/2008 |
| 7357906 | Method for fractionating single-wall carbon nanotubes The invention relates generally to dispersing and fractionating single-wall carbon nanotubes, which can be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the nanotubes. ... | 04/15/2008 |
| 7349566 | Image processing network An image processing network for processing image files and coupled to an outside data communication network comprising a plurality of remote image capture units, the units scanning documents and creating a plurality of image files of said documents; the image proces... | 03/25/2008 |
| 7269279 | Currency bill and coin processing system An integrated system for processing currency bills, coins, and other media includes a compact currency bill processing device, a coin scale, a keyboard, and a processor integrated into a housing as a single unit. The bill processing device is used for counting curre... | 09/11/2007 |
| 7262608 | Via etch monitoring A method for monitoring the depth of at least one via (11) in a wafer including the steps of arranging the via (11) as a capacitive plate (21), providing a corresponding capacitive plate (23), applying an electrical potential difference t... | 08/28/2007 |
| 7239152 | Methods for measuring parasitic capacitance and inductance of I/O leads on an electrical component using a network analyzer Apparatus and methods are provided for measuring the potential for mutual coupling in an integrated circuit package of any type or configuration using a network analyzer in conjunction with a coaxial test probe. Simple, low-cost test fixturing and methods of testing... | 07/03/2007 |
| 7232024 | Currency processing device A currency evaluation device for receiving a stack of currency bills and rapidly evaluating all the bills in the stack. The device comprises an input receptacle for receiving a stack of bills to be evaluated and a plurality of output receptacles for receiving the bi... | 06/19/2007 |
| 7221389 | Automatic equalization of video signals A video compensation system for analog video transmission is described. The compensation system is employed in an analog video switching circuit such that each time a conductive path is switched, the system automatically tests the new switch path for a new compensat... | 05/22/2007 |
| 7200255 | Document processing system using full image scanning A system for tracking currency bills comprises a currency scanning device. The scanning device includes a sensor that retrieves currency identification characteristic information of each bill processed. The currency identification characteristic information permits ... | 04/03/2007 |
| 7192208 | Rewritable card printer A rewritable card printer useful as a rewritable card printer. The rewritable card printer includes a print module coupled to one or more separate card magazines, each having independent card drives. The operation of the print module and one or more card magazines a... | 03/20/2007 |
| 7187795 | Document processing system using full image scanning A system for tracking currency bills comprises a currency scanning device. The scanning device includes a sensor that retrieves currency identification characteristic information of each bill processed. The currency identification characteristic information permits ... | 03/06/2007 |
| 7158662 | Currency bill and coin processing system A compact system for processing currency bills and coins comprises a compact currency bill processing device, a coin scale, and a processor communicatively linked to the currency bill processing device and the coin scale. The compact currency bill processing device ... | 01/02/2007 |
| 7149336 | Automatic currency processing system having ticket redemption module An apparatus for currency discrimination comprises first and second stationary scanheads, disposed on opposite sides of a bill transport path, for scanning respective first and second opposing surfaces of a bill traveling along the bill transport path and for produc... | 12/12/2006 |
| 7129693 | Modular voltage sensor A voltage sensor is described that consists of a plurality of identical series-connected sections, where each section is comprised of an arrangement of impedance elements. The sensor is optimized to provide an output ratio that is substantially immune to changes in ... | 10/31/2006 |
| 7129709 | Method of testing documents provided with optico-diffractively effective markings The invention relates to a method of examining the authenticity of a document provided with an optico-diffractively effective element or hologram by subjecting the hologram to capacitive coupling of a voltage and deriving a signal representative of the voltage for c... | 10/31/2006 |
| 7128482 | Multi-media gaming printer A multi-media gaming printer. The multi-media printer may accept various kinds of voucher media, such as thermally writable medias, smart cards, or magnetic strip cards. The multi-media printer includes writing, reading, and erasing devices within the printer to man... | 10/31/2006 |
| 7123032 | Voltage sensor and dielectric material A voltage sensor is described that consists of an arrangement of impedance elements. The sensor is optimized to provide an output ratio that is substantially immune to changes in voltage, temperature variations or aging. Also disclosed is a material with a large and... | 10/17/2006 |
| 7082269 | Interface circuit for a fiber transceiver The present invention discloses an interface circuit for a fiber transceiver, comprising: an encoder, for receiving and encoding an input data into an output differential signal; a comparator, for receiving an input differential signal from the fiber transceiver and... | 07/25/2006 |
| 7068053 | Orientation sensor especially suitable for use in an underground boring device An orientation sensor especially suitable for use in an underground device is disclosed herein. This orientation sensor includes a sensor housing defining a closed internal chamber, an arrangement of electrically conductive members in a predetermined positional rela... | 06/27/2006 |
| 7064562 | Temperature compensation method for soot sensor Certain characteristics of Diesel engine lubrication oil are determined. A sensor formed as a capacitor is immersed in the oil. An inductor is in series with the sensor, and a high frequency voltage with a varying frequency is applied to the resonance circuit formed... | 06/20/2006 |
| 7057393 | System and method for measuring the dielectric strength of a fluid A system is disclosed for monitoring the quality of an internal fluid contained in an apparatus. The system includes a pulse input port, a test gap unit, and a reactive impedance unit. The pulse input port receives a test pulse input signal from a pulse source. The ... | 06/06/2006 |
| 7056045 | Rewritable card printer A rewritable card printer useful as a rewritable card printer. The rewritable card printer includes a print module coupled to one or more separate card magazines, each having independent card drives. The operation of the print module and one or more card magazines a... | 06/06/2006 |
| 7032307 | Method for fabricating a probe pin for testing electrical characteristics of an apparatus A probe pin for testing electric characteristics of a semiconductor device comprises a silicon pin core (3, 23, 33), and a conductive film (4, 24, 34) covering the entire surface, including the bottom face, of the pin core. The bottom face of the probe... | 04/25/2006 |
| 7019529 | Electrostatic sensor device and matrix A system for electrostatically measuring the shape or pattern of objects including an array of sensor devices having the capability of responding, due to variable electrostatic coupling, to produce differentiated output signals when a sensor element forming part of ... | 03/28/2006 |
| 7016767 | System and method for processing currency and identification cards in a document processing device A document processing device having an evaluation region disposed along a transport path between an input and output receptacle capable of processing both currency bills and identification cards. An evaluation unit enables entry of source identification information ... | 03/21/2006 |
| 7000828 | Remote automated document processing system An automated check processing system for accepting and processing checks from a customer, having a plurality of document scanners. The document scanners are adapted to obtain full images of checks fed into the document scanners and to obtain images of selected porti... | 02/21/2006 |
| 6994200 | Currency handling system having multiple output receptacles A method and apparatus for handling bill jams within a currency processing device is provided. The device includes a transport mechanism adapted to transport bills along a transport path, one at a time, from the input receptacle past an evaluation unit into a plural... | 02/07/2006 |
