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8717037 Electronic control device  
A main microcomputer abnormality determination section checks whether or not a voltage value of Vcc based on digital data output from a main microcomputer analog-to-digital converter is equal to...
8547247 Detecting, locating and tracing of buried assets using distributed processing over communications networks  
A method on a mobile computing device for detecting, locating and tracing buried assets, is provided. The method includes reading, from one or more sensors communicatively coupled with the mobile...
8410952 Methods for forewarning of critical condition changes in monitoring civil structures  
Sensor modules (12) including accelerometers (20) are placed on a physical structure (10) and tri-axial accelerometer data is converted to mechanical power (P) data (41) which then processed to...
8369458 Wireless receiving system with an adaptively configurable analog to digital converter  
A circuit is disclosed that comprises a controller and an analog to digital converter (ADC) coupled to controller. The speed and/or the resolution of the ADC is configurable to provide optimum...
8145943 State variable-based detection and correction of errors  
Embodiments provide methods and apparatuses for detecting errors in a computation using state variables. In various embodiments, corrections of the errors through the state variables are also...
8054915 Method and device for adjusting a pulse detection threshold, and pulse detection and corresponding receiver  
The invention relates to a method for adjusting a pulse detection threshold consisting in detecting a pulse when the edge of said pulse envelop crosses the threshold, in allocating (A) a staring...
7901546 Monitoring methods, systems and apparatus for validating the operation of a current interrupter used in cathodic protection  
The present invention includes systems, methods and apparatus for continuously, independently and in some cases remotely monitoring the operation of a current interrupter used to test a cathodic...
7825823 Multi-channel signal monitoring circuit  
A signal monitoring circuit includes a plurality of sensors, a meter chip, a micro control unit (MCU), and a multiplexer. The sensors are adapted for collecting electrical signals of an electrical...
7821420 Signal transmission system for a measurement device  
A transmission system for a measurement device on a coordinate positioning apparatus comprises a station (18) mounted on the measuring device (10) and a station (20) mounted on the coordinate...
7639806 Fingerprinting digital devices using electromagnetic characteristics of their communications  
Methods and apparatus or systems for providing security based on innate characteristics of devices are disclosed. A method of providing security associated with communications from a digital...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
6181099 Method and apparatus for correcting DC offset in a frequency to voltage converter and motor drive using the same  
A method and apparatus for correcting DC offset in a frequency to voltage converter. An analog frequency to voltage converter receives a frequency signal and outputs a voltage signal having a...
5942992 Fast technique for converting binary numbers 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...
5748105 Fast technique for converting sampled analog measurements of a physical quanity to values expressed in 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...
5710552 Barrier device  
A barrier device threadably mounts to a cabling aperture on a field mounted transmitter. The field mounted transmitter receives and transmits signals, and is wholly powered by a current loop...
5673038 Process variable measuring and display device and portable power supply  
This invention relates to the field of process variable measuring and display devices and portable power supplies for process variable display devices. This invention can be used to measure and...
5517175 Potential adjusting sensor supervision circuit  
A warning or alarm sensor supervision circuit employs varying voltage levels which may vary at random intervals and to random levels.
5475384 Remote addressable transducer provided with automatic calibration and digital compensation  
The RAD transducer comprises a sensor (1) for measuring physical quantities, a power supply section (7), a clock section (2), a timing section (4,5) and a circuitry for the acquisition of a...
5430433 Radio analog sensor  
A radio analog sensor for transmitting analog signals of a temperature or smoke density to a remote place by radio is used as each of sub devices 12-1 to 12-n. When a change of the analog...
5428342 Analyzing system for operating condition of electrical apparatus  
A system for analyzing the operating conditions of electrical apparatus in order for the aged to check the change and abnormal state of life and for the external institute to check the safety of...
5420578 Integrated transmitter and controller  
Integrated transmitters and controllers for use in monitoring process variables. A transmitter and controller for monitoring and controlling a process variable in a process control loop comprises...
5353019 Process for monitoring the output signals from a transmitting device  
By rectifying, comparing and X-OR gating two signals (A,B) from a transmitting device (G) that are to be sinusoidal and have a corresponding rotational frequency, of the same amplitude, and...
5278552 Indicator control circuit  
An indicator control circuit includes a signal conversion circuit for converting an analog signal corresponding to a predetermined physical quantity into first digital data and a digital filter...
5200747 Turn counting position sensor  
A position sensor (25) includes both a position potentiometer (90) and a turns count potentiometer (92). The position potentiometer (90) includes a pair of wipers (12 and 14) positioned on a rotor...
5196776 Waveform generator for a resolver  
A waveform generator for a resolver transducer or the like is described. Such generator forms two 3-level waveforms which approximate sinusoidal waveforms for the excitation and/or output...
5181025 Conformal telemetry system  
A conformal telemetry package comprises a complete system including sensors, data acquisition components, a controller, RF transmitter, antenna and battery. The package is approximate 0.1 inch...
5128653 Fire alarm system  
A fire alarm system in which an analog type sensor (3) is connected to a transmission line (2) from a receiver (1) and in which one or more on-off type sensor (7) located in the same monitor area...
5045851 Analog signal multiplexer with noise rejection  
In analog multiplexers using solid state multiplexing relays and having a shunt capacitor circuit across each input channel as part of a filter for normal mode noise, common mode noise is rejected...
5041827 Apparatus for the preparation and wireless transmission of measured values  
Analog measured values are processed by an A/D converter (50) and/or digital measured values are processed by a timer (60) in a microcomputer and fed through a P/S converter (62) to a logic means...
5039978 Analog graphic display method and apparatus  
An apparatus and method for using an output device such as an LED to show the approximate analog level of a variable electrical signal wherein a modulating AC waveform is superimposed either on...
5006841 Addressable transducer with improved response signal processing  
A plurality of addressable transducers at remote locations are connected to a home station by a pair of transmission lines which carry power as well as address signals to the transducers, and...
4906909 Analog electronic control differential transmitter  
A linear, analog, synchro control differential transmitter for implementing he common synchro CDX function whereby a scaled linear analog voltage is used as input instead of a mechanical shaft...
4841296 Two-wire transmitter  
A two-wire transmitter having a detecting section for detecting a physical variable to be measured to produce a detection output, first and second constant voltage devices connected in series with...
4818994 Transmitter with internal serial bus  
An industrial process control transmitter has a modular construction, with a detector module and an output module electrically connected together by a serial bus. The output module includes a...
4783659 Analog transducer circuit with digital control  
A two wire transmitter controls loop current as a function of a sensed parameter such as pressure or temperature using analog sensing and signal processing circuitry. Corrections, such as for...
4751495 Analog pulsed heat trace monitor or the like  
A system, utilizing an analog pulsed signal, is for monitoring the condition of a system, by way of illustration, a multi-circuit electrically heat-traced substrate. The system senses the...

Matches 1 - 50 out of 129 1 2 3 >