Today In History
William Hartman was issued a patent for a method and apparatus for painting highway markings.
PatentStorm News
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
| Number | Title | Issue Date |
| 7417558 | Wireless communications system incorporating intelligent electronic devices An intelligent electronic device (IED) for monitoring at least one power parameter in a power system is disclosed. The IED comprises at least one voltage input operative to be coupled with at least one power line in the power system and operative to sense at least o... | 08/26/2008 |
| 7400986 | Usage monitoring apparatus An apparatus is disclosed for monitoring usage of multiple electrical devices. The apparatus comprises multiple non-invasive current sensors for sensing current in respective conductors associated with the electrical devices. Such conductors may for example be the e... | 07/15/2008 |
| 7376349 | Analog to digital converter systems and methods Systems and methods are disclosed herein to provide analog-to-digital converter techniques. For example, in accordance with an embodiment of the present invention, an analog-to-digital converter architecture is disclosed that utilizes optical techniques to convert a... | 05/20/2008 |
| 7362622 | System for determining a reference level and evaluating a signal on the basis of the reference level A circuit exhibits a signal input, means for determining a reference level on the basis of properties of a signal received at the signal input. In addition, the circuit further exhibits means for evaluating the signal on the basis of the reference level. ... | 04/22/2008 |
| 7321731 | Optical pulse position modulation discriminator Systems and methods are disclosed herein to provide various optical techniques. For example, in accordance with an embodiment of the present invention, a pulse position modulation discriminator architecture is disclosed for discriminating temporal positions of PPM-e... | 01/22/2008 |
| 7319418 | Sensor with multiplex data output A method of transmitting data from a sensor (1) to a receiver (4) in which each original data word is split in positional fashion into at least two separate short data words (MSN, LSN). The separate short data words (MSN, LSN) are each converted by dig... | 01/15/2008 |
| 7308825 | Tank gauging system A tank gauging system for sensing product parameters of a product contained in a tank is disclosed. The system comprises a microwave-based level gauging unit and a temperature gauging unit. A controller of the system includes an external interface adapted to enable ... | 12/18/2007 |
| 7251985 | Safety module and measuring arrangement with safety module A measuring arrangement, including: a measuring transmitter with a sensor for registering a property of a medium and for issuing a primary signal dependent on the property; a transmitter housing, with at least one chamber and a first opening on the side facing the m... | 08/07/2007 |
| 7239251 | Multi-bit digital input using a single pin Electronic devices, and methods, for transmitting, transferring and/or conveying a multi-bit digital signal as a voltage signal via a single pin. Devices and methods according to the invention substantially reduce the pin count of a device because inputting of a mul... | 07/03/2007 |
| 7230532 | Wireless sensor system A sensor system (S, S′) having a least one voltage generator (1, 11, 12, 13) for conversion of non-electrical energy to electrical energy. At least one energy store (2) is connected downstream from the voltage generator (1, 11, 12, 13). At lea... | 06/12/2007 |
| 7228186 | Field-mounted process device with programmable digital/analog interface Embodiments of the present invention generally provide a field-mountable process device that receives digital information from one or more process devices, and provides an associated analog output. Embodiments of the present invention include providing a wireless in... | 06/05/2007 |
| 7225282 | Method and apparatus for a two-wire serial command bus interface A method for bi-directional transmission of data between a source and a sink over a two-wire interface includes re-mapping a data signal and a clock signal from a first local bus on the source into a different protocol signal. Transmitting the different protocol sig... | 05/29/2007 |
| 7209401 | Ring oscillator dynamic adjustments for auto calibration An apparatus compensates for voltage and temperature variations on an integrated circuit with: a voltage sensor having a digital voltage output; a temperature sensor having a digital temperature output; a register coupled to the voltage sensor and the temperature se... | 04/24/2007 |
| 7209868 | Signal monitoring system and method A signal monitoring system includes four sensors, a multiplexer, a signal converting circuit, and a monitor chip. The multiplexer is electrically connected to the sensors for receiving the signals from the sensors. The multiplexer includes two selecting ports for se... | 04/24/2007 |
| 7187158 | Process device with switching power supply A process field device for coupling to a two wire process control loop includes a field device circuitry and a switching regulator to power the circuitry. A series regulator provides a regulated supply voltage to the switching regulator. A noise filter reduces the a... | 03/06/2007 |
| 7134354 | Display for process transmitter A transmitter for use in a process control system for monitoring an industrial process includes a housing having a top and a bottom and a height extending therebetween. A parallelogram display is mounted to the housing. Sides of the parallelogram display are arrange... | 11/14/2006 |
| 7119714 | Multi-bit digital input using a single pin Electronic devices, and methods, for transmitting, transferring and/or conveying a multi-bit digital signal as a voltage signal via a single pin. Devices and methods according to the invention substantially reduce the pin count of a device because inputting of a mul... | 10/10/2006 |
| 7117048 | Safety controller with safety response time monitoring A safety controller having a total worst case propagation delay, exceeding the required propagation delay required by a safety process, may be used to control the safety process by monitoring actual delays in signal processing in the safety controller and moving to ... | 10/03/2006 |
| 7109883 | Low power physical layer for a bus in an industrial transmitter A process variable transmitter connects a serial bus to an accessory load. A supply limiter circuit provides a first supply current limit and provides a stored energy output. A recessive driver circuit draws a drive current from the stored energy output and couples ... | 09/19/2006 |
| 7091631 | Intrinsically secure device for supplying redundant current-voltage A device for intrinsically safe, redundant current-voltage supply for electric loads in an explosion-proof area. The device includes at least two supply circuits for making available the current/voltage supply and a protective device for intrinsically safe current a... | 08/15/2006 |
| 7085610 | Root cause diagnostics An industrial process diagnostic apparatus is provided which can identify a source, or “root cause”, of an aberration in an industrial process. A plurality of process configuration models are provided which each represent a physical (or actual) implementation of... | 08/01/2006 |
| 7036381 | High temperature pressure transmitter assembly A pressure transmitter assembly for measuring a pressure of a process fluid includes an isolation diaphragm assembly. A pressure sensor is spaced apart from the isolation diaphragm assembly to provide thermal isolation. A conduit extends from the isolation diaphragm... | 05/02/2006 |
| 7010983 | Method for digitally controlling a sensor system Systems and methods for digitally controlling sensors. In one embodiment, a digital controller for a capacitance diaphragm gauge is embedded in a digital signal processor (DSP). The controller receives digitized input from a sensor AFE via a variable gain module, a ... | 03/14/2006 |
| 7009576 | Radio frequency antenna for a tire and method for same A radio frequency antenna for embedding within a conductive, dielectric material (such as tire rubber) is provided along with a method of embedding a radio frequency antenna in such a material. For very high frequency transmission, improved communication ranges are ... | 03/07/2006 |
| 6973731 | Encoder Disclosed is an encoder including a rotary member and a fixed member. The fixed member is provided with an electrode having A-channel, B-channel and C-channel patterns, the rotary member is provided with contacts which are to be opposed to the electrode. A-C state s... | 12/13/2005 |
| 6967591 | Multi-bit digital input using a single pin Electronic devices, and methods, for transmitting, transferring and/or conveying a multi-bit digital signal as a voltage signal via a single pin. Devices and methods according to the invention substantially reduce the pin count of a device because inputting of a mul... | 11/22/2005 |
| 6927965 | Fuel level sensor safety barrier A fuel level sensor system is provided that passively protects fuel sensors and fuel tanks from receiving voltages from fuel level sensing electronics that exceed safety threshold values. The fuel level sensor system includes a safety barrier device that is located ... | 08/09/2005 |
| 6907790 | Gage pressure output from an absolute pressure measurement device A pressure measurement device comprising an absolute pressure sensor and a bus coupling serial communication and energization to an electrical connector in a field wiring compartment. An atmospheric pressure sensor module is connected to the bus at the electrical co... | 06/21/2005 |
| 6907383 | Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ... | 06/14/2005 |
| 6903702 | Radio equipment An antenna is provided as a substrate member, and, as with the antenna, a ground part is provided as a substrate member. The ground part includes a folded pattern formed of a copper foil provided on the surface of a substrate material. When a folded pattern in the a... | 06/07/2005 |
| 6871785 | Method and device for compensating undesired variations in an electrical signal generated by an optical code reader The method for compensating undesired variations in an electrical signal generated by a sensor of an optical code reader comprises the steps of generating an envelope signal starting from the electrical signal generated by the sensor and normalizing the electrical s... | 03/29/2005 |
| 6813318 | Process transmitter having a step-up converter for powering analog components A process transmitter suitable for coupling to a process loop. The process transmitter includes a power regulator adapted to receive a power signal on the process loop and to provide a first signal having a first voltage. Digital components of the process transmitte... | 11/02/2004 |
| 6753772 | Method and arrangement for detecting and digitally transmitting measured analog output values of a number of transducers To develop a method according to WO 01/45232 in such a manner that it supplies good results in every case, in a method for detecting and digitally transmitting measured analog output values of a number of transducers to a protection or field device, the measured ana... | 06/22/2004 |
| 6747573 | Apparatus and method for generating coded high-frequency signals An apparatus and method for generating coded high-frequency signals, having a converter, which converts non-electrical primary energy available from the surroundings into electrical energy, an element with a nonlinear characteristic curve, which is coupled to the co... | 06/08/2004 |
| 6744376 | Remote input/output (RIO) smart sensor analog-digital chip An analog-digital, radiation-hardened, low-power Smart Sensor Data Acquisition and Control chip, specifically designed and developed for Spacecraft/Instrument Housekeeping and Controls. Sensor data (Temperatures, Voltages, Currents, Pressure, Digitals) are continuou... | 06/01/2004 |
| 6292108 | Modular, wireless damage monitoring system for structures A structural monitoring system comprises a plurality of modular, battery powered data acquisition devices which transmit structural information to a central data collection and analysis device over a wireless data link. The data acquisition devices each c... | 09/18/2001 |
| 6233532 | Sensor assembly A sensor assembly and a method for sensing physical conditions and reporting on the same are disclosed. The sensor assembly comprises an electronic sensor, a dedicated signal conditioner and a dedicated ADC, all integrated directly with the electronic sen... | 05/15/2001 |
| 6233285 | Intrinsically safe cable drive circuit A cable drive circuit allows a transmitter in a process control system to drive signals across a capacitive length of cable. The cable drive circuit uses a charge pump to store charge, which is then used in conjunction with open drain outputs to transmit ... | 05/15/2001 |
| 6208247 | Wireless integrated sensor network using multiple relayed communications Wireless integrated miniature sensing stations which can be organized into a communicating network allow sensitive detection and analysis of vibration, infrared radiation, sound, or other physical signals indicative of an intruder or condition to be monit... | 03/27/2001 |
| 6188971 | Fast technique for converting temperature readings into values expressed in an engineering unit format An engineering unit converter system for converting an analog measurement into an engineering value. An analog measurement of a physical quantity is transformed into a digital value. The digital value is then split into a high order digit and a lower orde... | 02/13/2001 |