interrogation (Total 2822 Patents Found)

A technique for interrogation of fiber optic interferometric sensors wherein an optical signal is modulated by an array of fiber optic sensors in response to acoustic pressure. Modulated signals (channels) from each sensor are multiplexed onto a single fiber optic cable and the multiplexed signal is input to a polariza...
A contact arrangement for interrogating the data and counting values of a wheel revolution counter. The contact arrangement is accessible from the outside at an otherwise hermetically closed housing. The wheel revolution counter is conventionally fastened at a wheel hub of a vehicle in a cantilevering manner. The conta...
An optical probe and a method for testing an optical chip or device, such as an photonic integrated circuit (PIC), to provide for testing of such devices or circuits while they are still in their in-wafer form and is accomplished by using a an optical probe for interrogation of the circuit where an access is provided i...
A method of determining the frequency of a plurality of resonant devices (for example three SAW devices) includes determining optimal interrogation frequencies for each of the devices, the optimal interrogation frequencies having maximum power spectral densities, accumulating a plurality of responses for each sensor, p...
Time-referenced data are pervasive in most real-world databases. Recent advances in temporal query languages show that such database applications may benefit substantially from built- temporal support in the DBMS. To achieve this, temporal query optimization and evaluation mechanisms must be provided, either within...
本发明实施例公开了一种基于MBMS承载的集群通信中查询节点状态的方法及系统、存储介质,所述方法包括:集群业务应用服务器向采用多媒体广播多播业务MBMS承载发送集群业务的网络节点发送上报网络节点状态的请求消息,并接收所述网络节...
An interrogator, methods of discerning the presence of an object, and interrogation systems employing the same. In one embodiment, the interrogation systems include multiple interrogators that communicate with a base command unit to track a location of an object. In another embodiment wherein the object is an RFID obje...
A circuit internal to a programmable integrated circuit for preventing laser interrogation of the programmable integrated circuit includes a sense resistor connected between a deep n-well and a source of bias voltage for the deep n-well. A voltage-sensing circuit is coupled across the sense resistor to measure voltage ...
The present invention relates to an apparatus for the surveillance of an electronic security element in an interrogation zone, comprising a transmitting device emitting at least one cyclic interrogation signal into the interrogation zone, with the interrogation signal causing the security element to deliver a character...
A multi-function optical tool may be used for example for built-in fault detection and transceiver source characterization in local optical communication networks. A single device provides swept-heterodyne optical spectrum analysis (SHOSA) and optical frequency-domain reflectometry (OFDR) in an efficient, low-cost pack...
A security system (2) with a large number of individually-addressable modules (6) interconnected on a data bus (8) to a control panel (4), a method of concurrently supervising the modules by first configuring each module with a unique zone number including a group number and a module number. The control panel initiates...
An optical interrogation system and method are described herein that can interrogate a two-dimensional (2D) array of optical sensors (e.g., grating coupled waveguide sensors) located in a 2D specimen plate (e.g., microplate). In one embodiment, the optical interrogation system has a launch system which directs an array...
A system and method for the inspection and/or search for concealed objects impinges a monoenergetic neutron beam upon an object, notes the energy distribution of the neutrons scattered from the object and correlates the energy/intensity distribution of the scattered neutrons with the presence or absence of particular e...
It is shown that the interrogation repetition period (IRP) of an interrogr can be recognized by a transponder and then used by it to both determine when the interrogator has elicited a predetermined number of replies called an adequate response and limit the interrogator to that number during each scan. This form of r...
The present invention relates to a Database Management System (DBMS)- based Semantic Web query system and method using parameterized SPARQL queries. The present invention is configured to include output means that creates a parameter list from a SPARQL query statement, converts the query statement into an SQL statement...
An interrogator, methods of discerning the presence of an object, and interrogation systems employing the same. In one embodiment, the interrogation systems include multiple interrogators that communicate with a base command unit to track a location of an object. In another embodiment wherein the object is an RFID obje...
The present invention is directed to an interrogator, method of discerning metal and radio frequency identification (RFID) objects, and an interrogation system employing the same. In one embodiment, the interrogator includes a metal sensing subsystem configured to provide a first signal having a signature representing ...
A method for selecting an electronic module from a plurality of at least two modules (M 1, M 2, M 3 ) capable of emitting messages simultaneously, includes the steps of sending a general query message (ACTIVALL) to the modules, and selecting (AFI, SELECT-ID) the module having responded first, the modules, on receivin...
The invention provides methods and processes for the identification of polymorphisms at one ore more designated sites, without interference from non-designated sites located within proximity of such designated sites. Probes are provided capable of interrogation of such designated sites in order to determine the composi...
A P-I-N type diode high frequency switch in a secondary radar interrogation device working with ISLS and RSLS and consisting of a transmitter, two receivers and two antennas. So as to reduce the high cost for P-I-N type diodes, including driver stages for the transmission and reception separation and to eliminate the n...
An atomic oscillator includes an alkali-metal cell in which alkali-metal atoms are enclosed, a light source which irradiates the atoms in the alkali-metal cell with laser beams, a photodetector which detects a light amount of the laser beams passing through the alkali-metal cell to enter the photodetector, and a contro...
An apparatus for inspecting the contents of a cargo container includes a neutron source having an ion source configured to provide deuterium or tritium ions and an accelerator configured to accelerate the ions toward a target having at least one of deuterium or tritium. The apparatus further includes a radiation detect...
Methods and systems for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The physiological parameter is determined from a signal sensed from the eye of a subject according to a schedule, unde...
The present invention is directed to systems and methods for enhancing electronic communication security. An electronic communication is received and stored. A plurality of risk assessments are made with respect to the received communication thereby generating a risk profile associated with the communication. The asses...
Methods and systems for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The system includes a gaze attractor for attracting the gaze of the subject to cause an eye of the subject to move int...
The present invention is directed to an interrogator, method of discerning metal and radio frequency identification (RFID) objects, and an interrogation system employing the same. In one embodiment, the interrogator includes a metal sensing subsystem configured to provide a first signal having a signature representing ...
A system (100) and a method for querying heterogeneous data sources have been disclosed. The system (100) based on machine learning and classification rules, predicts a best route for querying at least one data source from the heterogeneous data sources. The system (100) minimizes inefficient use of hardware resources ...
A weapon firing system including weapon interrogation means is disclosed wherein a weapon control computer (8) provides a signal (at 27) for closing a normally open switch (16) and signals (at 29, 29A, 29B, 29N) for connecting one of a plurality of weapon select relays (18, 18A, 18B, 18N) to the switch. During weapon i...
A passive, temperature compensated tunable filter calibration device for a Bragg grating interrogation system. In a first system, a dual-substrate Bragg grating calibration system, the temperature of an array of gratings is estimated using an array of gratings bonded to a common host substrate and a single grating bond...
The present invention relates to a concept lattice-based query term mapping system which collects terms (terms in use) used correlatively with one another by a plurality of users, and represents terms associated with specific terms (query terms) in a graph. The system takes, as an input, terms being used by each user i...
A passive, temperature compensated tunable filter calibration device in a Bragg-grating interrogation system. The invention comprises two systems: 1) a dual substrate Bragg grating calibration system, the temperature of an array of gratings is estimated using an array of gratings bonded to a common host substrate and a...