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Fletcher, GB
Benjamin J. Fletcher, Winchester GB
| Patent application number | Description | Published |
|---|---|---|
| 20090275310 | Techniques for Avoiding Redundant Transmissions of Data During Multimedia Mobile Phone Communications - A method, apparatus, and computer product for avoiding redundant data transmissions during communication via multimedia mobile phones. In operation, a sending party inquires whether intended for transmission data already resides in a mobile phone of a receiving party Depending on a content of the response from the receiving party, the sending party transmits the data or a request for displaying the already available data. | 11-05-2009 |
| 20100017808 | METHODS, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR APPLICATION NAME AND CLIENT ID PAIRING IN A MESSAGE CONNECTION - Methods, systems and computer program products for application name and client ID pairing in a message connection. An exemplary embodiment includes a method for pairing an application name and a client ID in a messaging broker infrastructure, the method including running a messaging system associated with the messaging broker infrastructure running a monitoring application configured to monitor a connection to the messaging broker, creating a connection to the messaging broker, identifying a class name and the client ID associated with an application, converting the class name to an application name and publishing a pairing of the application name and the client ID on the messaging infrastructure. | 01-21-2010 |
| 20100306264 | OPTIMIZING PUBLISH/SUBSCRIBE MATCHING FOR NON-WILDCARDED TOPICS - A method, a system and a computer program product for matching a publication to at least one subscriber are disclosed. After receiving a publication request, a matching engine accesses a hash table to determine whether there is a non-wildcarded match corresponding to the publication request. If the matching engine finds the non-wildcarded match in the hash table, the matching engine omits validating a topic of the publication and provides the non-wildcarded match to the broker device without waiting for a result of searching a wildcarded match. Otherwise, the matching engine validates the topic of the publication. The matching engine also starts to search a wildcarded match in a wildcarded subscription data store. Upon finding the wildcarded match, the matching engine provides the wildcarded match to the broker device. The matching engine provides each result of the findings asynchronously to the broker device. | 12-02-2010 |
Benjamin J. Fletcher, West Yorkshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20100023587 | SYSTEM FOR CONTROLLING RETENTION OF DATA MESSAGES - Subscribers connected to a publish/subscribe message broker receive messages on topic names to which they have subscribed. The subscribers receive any number of messages on each topic to which they have subscribed. When the broker receives a message on a second, pre-specified, topic, associated with a first topic, the broker removes any existing retained message related to the first topic. Thus any subsequent subscribers to the first topic do not receive the retained message when they subscribe, and thus do not receive out-of-date information. If, at a later date, a new message is published on the first topic subscribers will receive the new message if they are still subscribed. | 01-28-2010 |
Benjamin J. Fletcher, Huddersfield GB
| Patent application number | Description | Published |
|---|---|---|
| 20090265161 | TRANSFORMING A NATURAL LANGUAGE REQUEST FOR MODIFYING A SET OF SUBSCRIPTIONS FOR A PUBLISH/SUBSCRIBE TOPIC STRING - A method, apparatus and software is disclosed for transforming a natural language request for modifying a set of subscriptions for a publish/subscribe topic string in which a predetermined element in the request is transformed into a publish/subscribe symbol in the topic string. | 10-22-2009 |
Benjamin J. Fletcher, Hampshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20090300691 | METHOD AND SYSTEM OF OPERATING CONTENT STREAMS - A method and system of operating content streams. The method includes detecting that a playing of first and second content streams is asynchronous, each of the first and second content streams respectively including first and second turning points, and selectively synchronizing at least the first and second turning points of the first and second content streams by inserting gap fillers into at least one of the first and second content streams. | 12-03-2009 |
Benjamin Joseph Fletcher, Huddersfield GB
| Patent application number | Description | Published |
|---|---|---|
| 20080294732 | DETERMINING THE STATUS OF A DEVICE THROUGH USE OF A PUBLISHER/SUBSCRIBER INTERFACE - A publish/subscribe interface is used to enable a non-publish/subscribe first system (such as an IP network device) to obtain status information about a publish/subscribe device that cannot be pinged by the first system. The first system sends a status request to a domain name server associated with a system known to include the publish/subscribe device. The status request includes a domain name for the publish/subscribe device. Topic space maintained by a message broker in the publish/subscribe system includes status topics associated with publish/subscribe devices. The status topics contents reflect the current availability of the associated publish/subscribe device. The domain name is mapped to a status topic associated to the publish/subscribe device identified in the status request and the contents of that status topic are retrieved. If the contents have a first value, a “good” IP address is returned to the first system. If the contents have the second value, a “bad” IP address is returned. The return address is used in ping messages. If the ping operation succeeds, it is concluded the publish/subscribe device is online. If the ping operation fails, it is concluded that the publish/subscribe device is off-line. | 11-27-2008 |
| 20090271483 | METHOD FOR REPUBLICATION OF PUBLISHED MESSAGES AS APPENDS ON A SEPARATE RETAINED TOPIC - A method for republication of published messages includes receiving a published message on a topic from a publisher, storing the published message as an appended retained message, republishing the appended retained message on a history topic, receiving a request from a subscriber to view at least a portion of the appended retained message, and transmitting the republished message to a subscriber subscribing to the topic after the published message has been published via the history topic. | 10-29-2009 |
Benjamin Joseph Fletcher, West Yorkshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20080227438 | CONFERENCING USING PUBLISH/SUBSCRIBE COMMUNICATIONS - A method and system are for conferencing by exchanging conference communications between two or more participants includes publishing a conference communication to a message broker and subscribing to conference communications at a message broker. A subscription topic specifies one or more type or source of the communication. A conference communication may be one of a text input, transcribed text, audio input, synthesized audio speech, or video input including real or animated images. The method and system of conferencing using publish/subscribe communications allows participants with different communication needs to be accommodated in a flexible manner. | 09-18-2008 |
| 20080248801 | ACCESS TO LOCALLY RELEVANT SERVICES AND PERSONALLY RELEVANT SERVICES WITHIN A MOBILE COMMUNICATIONS ENVIRONMENT - Accesses to locally-relevant and contextually-relevant services information within a mobile communications environment are enabled. The solutions include an improved location determination in which a first mobile communications device processes location information broadcast by other devices via short-range wireless signals to determine its approximate location. The described solutions include a context-based selection of the most relevant of a set of locally-available services, including filtering services according to whether the first mobile device is currently moving and filtering according to a personal profile of the device user. | 10-09-2008 |
| 20080276291 | PRODUCING SPECIAL EFFECTS TO COMPLEMENT DISPLAYED VIDEO INFORMATION - A hierarchical publish/subscribe network is employed to produce and distribute special effects to users to complement displayed video information. A top level broker in the network receives a plurality of data streams corresponding to a respective plurality of primary special. A service provider makes a subscription request for one of said primary special effects and receives the corresponding selected data stream. The selected data stream is transformed into at least one further data stream, corresponding to a further special effect. The further data stream is published to a lower level broker associated with the service provider. In response to a user subscription request for the further special effect, the lower level broker publishes the further data stream to a user interface for presentation to the user in association with the displayed video information. | 11-06-2008 |
Brian Fletcher, Felixstowe GB
| Patent application number | Description | Published |
|---|---|---|
| 20090199192 | Resource scheduling apparatus and method - Embodiments of the invention are concerned with allocating resources to tasks and have particular application to situations where the availability of resources and the tasks to be performed change dynamically and the resources are mobile. | 08-06-2009 |
| 20100287025 | MOBILE RESOURCE TASK SCHEDULING - In a method for scheduling tasks for a mobile resource, task schedule data for a mobile resource is accessed. The task schedule data comprises a scheduled location of the mobile resource, and the task schedule data is planned before initiation of the task. The task schedule data and the real-time location data of the mobile resource are correlated. An alert is transmitted in real-time based on correlating the task schedule data and the real-time mobile resource location data. | 11-11-2010 |
Bruce Fletcher, Lancashire GB
| Patent application number | Description | Published |
|---|---|---|
| 20110120300 | Linear Actuator and Position Sensing Apparatus Therefor - A linear actuator such as a hydraulic cylinder has linear position sensing apparatus. At least one magnet is provided in a recess in outer surface of the piston for generating a magnetic field that passes through the wall of the cylinder housing. A magnetic sensor arrangement determines the axial position of the piston relative to the housing and comprises at least a pair of magnetic sensor elements arranged at spaced apart locations along the external surface of the wall for sensing the strength of the magnetic field passing through the wall of the housing. The recess in the piston is axially positioned between the first and second end surfaces of the piston and the at least one magnet is disposed between axially spaced north and south pole pieces. | 05-26-2011 |
Craig Fletcher, Bath GB
| Patent application number | Description | Published |
|---|---|---|
| 20100234967 | ROTARY ACTUATOR ARRANGEMENT - A rotary actuator comprises a motor, gearing connected for driving by the motor, an output drive member and bearings for carrying the output drive member, wherein the gearing comprises wave generator gearing and the gearing is at least partially located radially within the bearings. In addition, an artificial limb member comprises an actuator to effect movement of the limb member, wherein the actuator comprises a motor connected to wave generator gearing. | 09-16-2010 |
Edward Stuart Fletcher, Torquay GB
| Patent application number | Description | Published |
|---|---|---|
| 20090067635 | APPARATUS AND METHOD FOR REPRODUCTION OF STEREO SOUND - An apparatus and method for reproducing stereo sound. A transducer ( | 03-12-2009 |
| 20100061575 | APPARATUS FOR REPRODUCTION OF STEREO SOUND - Apparatus for reproducing stereo sound having a housing ( | 03-11-2010 |
| 20100239108 | METHOD OF IMPROVING SOUND REPRODUCTION AND LISTENING ENJOYMENT - A method of using an audio device ( | 09-23-2010 |
| 20100303264 | APPARATUS AND METHOD FOR REPRODUCTION OF STEREO SOUND - Apparatus for reproduction of stereo sound from a two channel signal, having one or more first transducers ( | 12-02-2010 |
Graham Charles Fletcher, Abingdon GB
| Patent application number | Description | Published |
|---|---|---|
| 20110150877 | EPHRIN-B RECEPTOR PROTEIN INVOLVED IN CARCINOMA - The present invention provides a polypeptide (CCMP-1) of use in the diagnosis, screening, treatment and prophylaxis of carcinoma. Also provided are compositions comprising the protein, vaccines and antibodies that are immunospecific for the protein. | 06-23-2011 |
Ian Fletcher, Leicestershire GB
| Patent application number | Description | Published |
|---|---|---|
| 20090211578 | INHALER VALVE - Rotary metering valve ( | 08-27-2009 |
| 20100276459 | RING FOR A FLUID DISPENSER VALVE | 11-04-2010 |
Ian Fletcher, Loughborough GB
| Patent application number | Description | Published |
|---|---|---|
| 20090106996 | Measuring Canister Valve Alignment - In one implementation, an inhaler valve alignment measurement device includes an extended pointer arranged in alignment with a first canister member, e.g. a valve stem or a valve base, and an extended reference member arranged in alignment with a second canister member, e.g. a valve base or a canister wall. The extended reference member includes a visual alignment indicator indicative of the relative alignment of the extended pointer and the extended reference member at a predetermined distance from the canister members. | 04-30-2009 |
John Fletcher, London GB
| Patent application number | Description | Published |
|---|---|---|
| 20080227855 | Solid Dispersion of Hydrophobic Bioactive - A stable composition of an amorphous component (such as a bioactive) and a carrier polymer is formed by mixing a bridging polymer with the bioactive and the carrier polymer, wherein the bridging polymer is a hydrogen bond donor to both the bioactive and the carrier polymer, thereby forming a composition in which the bioactive and the carrier polymer have less of a tendency to crystallise than if the bridging polymer were not present. | 09-18-2008 |
Malcolm Fletcher, Monmouthshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20090126850 | LABELLING ARTICLES - Labelling apparatus, for example for applying labels to articles such as bottles by means of a pressure-sensitive adhesive, includes a presser | 05-21-2009 |
Patrick Fletcher, Wiltshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20100139481 | METHOD OF TREATING A GAS SYSTEM - In a method of treating a gas stream, an aqueous scrubbing liquor is circulated through an essentially closed loop ( | 06-10-2010 |
Paul Fletcher, Lancashire GB
| Patent application number | Description | Published |
|---|---|---|
| 20100132267 | Auditorium - An auditorium ( | 06-03-2010 |
Paul Fletcher, Camberley GB
| Patent application number | Description | Published |
|---|---|---|
| 20100196545 | BEVERAGE PREPARATION MATERIAL - A beverage preparation material ( | 08-05-2010 |
Paul Fletcher, Rugby GB
| Patent application number | Description | Published |
|---|---|---|
| 20120025013 | AEROSPACE VEHICLE YAW GENERATING TAIL SECTION - A tail section for an aerospace vehicle is provided. The tail section comprises a rudder which is movable about an axis to generate a yawing moment on the aerospace vehicle. The tail section further comprises a thruster having, in flow series, an air intake, an electrically powered device for accelerating the air received through the intake, and an air outlet which directs the accelerated air to increase the yawing moment generated by the rudder. | 02-02-2012 |
Paul Nicholas Fletcher, Bristol GB
| Patent application number | Description | Published |
|---|---|---|
| 20090207078 | Beam steering in a MIMO system - Method, apparatus, associated computer programs, and signals for channel identification in Multiple-Input Multiple-Output (MIMO) communications systems, and in particular wireless communications systems. The channel derivation method uses steering of mutually orthogonal beamformers at the transmitter end to allow direct identification, whether by selection or mathematical computation, of the channel matrix and hence the preferred transmit beam orientations. | 08-20-2009 |
Philip Fletcher, Cambridgeshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20090005490 | Wax-Containing Materials - Wax-containing crude oils are treated with polyvinyl alcohol, which is optionally cross-linked, to improve the mobility of the oil and thereby facilitate its transport between its point of production and a point downstream thereof. | 01-01-2009 |
| 20100186966 | HYDROCARBONS - An oil well includes a wellbore ( | 07-29-2010 |
| 20100234253 | Method for reducing the viscosity of viscous fluids - A viscous fluid, such as heavy crude oil which is too viscous to enable it to be pumped from a flowing phase of a reservoir into and along a pipeline for delivery to a refinery or other storage facility, may be contacted with a formulation to reduce its viscosity. The formulation comprises a polymeric material AA which includes —O— moieties pendent from a polymeric backbone thereof and said material is optionally cross-linked. In one embodiment, the formulation may comprise polyvinyl alcohol. In an alternative embodiment, the formulation may comprise a cross-linked polymeric material, such as cross-linked polyvinyl alcohol. After the viscous composition has been transported to a desired location, it may be separated from the other components. | 09-16-2010 |
| 20100294497 | Recovery of oil - A method of recovering oil from a subterranean formation which includes an association production well involves contacting oil in the formation with a treatment fluid formulation which includes polyvinylalcohol and collecting oil which is being contacted with said treatment fluid formulation by said production well. Use of the polyvinylalcohol, optionally in combination with other materials, facilities recovery of oil from subterranean formation, particularly those involving medium or high viscosity oils. | 11-25-2010 |
Richard Fletcher, East Sussex GB
| Patent application number | Description | Published |
|---|---|---|
| 20120121370 | Compact Wheelchair Platform - A wheelchair platform comprises a tilting platform for a wheelchair comprising a base to support the wheelchair in use and a back wall. The platform is pivotably connected between a pair of side supports in a compact construction. Actuators, such as hydraulic rams are operable to tilt the platform. The pivot axis for the platform is forward of the back wall and above the base. The actuators are also forward of the back wall. The platform swings forward when tilting. The base may be hinged approximately half way along its length to allow the front half to be folded over for storage. | 05-17-2012 |
Richard Fletcher, Leominster GB
| Patent application number | Description | Published |
|---|---|---|
| 20100170037 | LIFTING AND LOWERING CUSHION - A device for lifting and lowering a person in a confined space which comprises an inflatable cushion with a seating surface and an inflatable back rest attached thereto. The back rest is movable relative to the cushion and attached so that when the device is inflated the back rest is biased into an open position such that it extends in substantially the same plane as the seating surface of the cushion. The device is also provided with at least one aperture located between the back rest and the cushion. | 07-08-2010 |
Robert Adam Fletcher, Dunblane GB
| Patent application number | Description | Published |
|---|---|---|
| 20120023209 | METHOD AND APPARATUS FOR SCALABLE AUTOMATED CLUSTER CONTROL BASED ON SERVICE LEVEL OBJECTIVES TO SUPPORT APPLICATIONS REQUIRING CONTINUOUS AVAILABILITY - A computer-implemented method for managing the state of a multi-node cluster includes receiving an event indicative of a possible change in a current cluster state. A goal cluster state is identified if the current cluster state does not meet a service level objective. The goal cluster state includes a replication tree for replication among the member nodes of the goal cluster state. A transition plan for transitioning from the current cluster state to the goal cluster state is generated. The transition plan is executed to transition from the current cluster state to the goal cluster state. | 01-26-2012 |
Robin Fletcher, Guildford GB
| Patent application number | Description | Published |
|---|---|---|
| 20080312838 | Creating an Absorption Parameter Model - To generate an absorption parameter model, estimated values of an effective absorption parameter are received, where the estimated effective absorption parameter values represent absorption encountered by a seismic wave in a subterranean structure. Based on the estimated effective absorption parameter values, an absorption parameter model is generated that varies absorption parameter values along at least one dimension of the subterranean structure. | 12-18-2008 |
| 20110310699 | REGULATING COHERENT BOUNDARY REFLECTIONS DURING GENERATION OF A MODELED WAVEFIELD - A technique includes receiving data indicative of a wavefield in a processor-based system and processing the data on the processor-based system to generate a modeled wavefield. The processing includes varying boundary conditions of the modeled wavefield with respect to time to regulate coherent boundary reflections in the modeled wavefield. | 12-22-2011 |
Robin Fletcher, Surrey GB
| Patent application number | Description | Published |
|---|---|---|
| 20090213693 | USING A WAVE PROPAGATOR FOR TRANSVERSELY ISOTROPIC MEDIA - A technique includes modeling a seismic wavefield in a vertical transversely isotropic media as a second order derivative of a first wavefield function with respect to a vertical direction and not with respect to crossline and inline directions and as second order derivatives of a second wave field function with respect to the inline and crossline directions and not with respect to the vertical direction. The method includes processing seismic measurements of the media in accordance with the modeled seismic wavefield to obtain information about the media. In another technique, a seismic wavefield in a tilted transversely isotropic media are modeled based at least in part on orientation of the symmetry axis and a nonzero shear velocity for the media; and seismic measurements of the media are processed in accordance with the modeled seismic wavefield to obtain information associated with the media | 08-27-2009 |
Roger Fletcher, Wirswall GB
| Patent application number | Description | Published |
|---|---|---|
| 20090058304 | Inductively-Coupled RF Power Source - A system and method are disclosed for implementing a power source including a power amplifier that generates a radio-frequency power signal with an adjustable operating frequency. The power amplifier also generates a reference phase signal that is derived from the radio-frequency power signal. An impedance match provides the radio-frequency power signal to a plasma coil that has a variable resonance condition. A phase probe is positioned adjacent to the plasma coil to generate a coil phase signal corresponding to the adjustable operating frequency. A phase-locked loop then generates an RF drive signal that is based upon a phase relationship between the reference phase signal and the coil phase signal. The phase-locked loop provides the RF drive signal to the power amplifier to control the adjustable operating frequency, so that the adjustable operating frequency then tracks the variable resonance condition. | 03-05-2009 |
| 20110193483 | Methods for Inductively-Coupled RF Power Source - A method for tracking a variable resonance condition in a plasma coil during creation of plasma from a gas flowing in a plasma torch adjacent to the plasma coil comprises: providing a radio-frequency (RF) power source comprising a power amplifier that generates a radio-frequency power signal with an adjustable operating frequency; providing a high-voltage ignition charge from said RF power source to the gas in plasma torch so as to create an electrical discharge through said gas so as to create a test sample comprising a partial plasma state within said plasma torch; and applying an RF power signal from said plasma coil to said test sample in said plasma torch, wherein said adjustable operating frequency of said power amplifier tracks said variable resonance condition of said plasma coil such that said test sample in the plasma torch achieves a full plasma state. | 08-11-2011 |
Stephen Robert Fletcher, Bishops Stortford GB
| Patent application number | Description | Published |
|---|---|---|
| 20100016308 | Tetrahydroindole Derivatives for Treatment of Alzheimer's Disease - Tetrahydroindole derivatives of formula (I): are disclosed. These compounds modulate the activity of gamma-secretase and hence find use in treatment or prevention of Alzheimer's disease. | 01-21-2010 |
Timothy Edward Fletcher, Oxford GB
| Patent application number | Description | Published |
|---|---|---|
| 20090326756 | Method for determining the performance of motor vehicle consumables - A method for determining the performance of at least one motor vehicle consumable selected from the group consisting of engine lubricant, fuel and tyres, in a motor vehicle having an engine with at least one fuel injection valve, a lubricating system and a CANbus network comprising at least three network nodes, each operably connected to a computer, which method comprises: operating the vehicle whilst supplying the engine with the fuel through at least one fuel injection valve and lubricating the engine with the engine lubricant characterised in that: a first CANbus network node transmits to the computer, a signal indicative of the engine fuelling rate based upon the opening time of at least one of the fuel injection valves; one or more second CANbus network nodes transmit one or more signals to the computer indicative of one or more variables indicative of the power output of the engine; one or more third CANbus network nodes transmit one or more signals to the computer indicative of the vehicle operating conditions; the computer calculates a variable (Corrected Power Output) indicative of the power output of the engine corrected for the vehicle operating conditions using the one or more signals transmitted to the computer by the one or more second CANbus network nodes, the one or more signals transmitted to the computer by the one or more third CANbus network nodes and a predetermined algorithm; and the computer transmits and/or stores the Corrected Power Output and the signal indicative of the engine fuelling rate. | 12-31-2009 |
Trevor L. Fletcher, Leicestershire GB
| Patent application number | Description | Published |
|---|---|---|
| 20120109496 | FUEL INJECTION SYSTEM - A method for controlling the supply of a first fuel and a second fuel to an engine, which engine is fuelled by the first fuel only in a first mode of operation and by a mixture of the first fuel and the second fuel in a second mode of operation, the method comprising the steps of: 1) calculating the mass of first fuel Md required by the engine if running in the first mode; 2) calculating from the mass Md, the fuel energy Fe that the amount of mass Md would provide; 3) determining a minimum reduced amount of diesel fuel Fdmin with which it is desired to operate in the second mode; 4) calculating the amount of second fuel Msub, which together with the reduced amount of diesel fuel Fdmin will provide a fuel energy equivalent to Fe. | 05-03-2012 |
Trevor Lee Fletcher, Leicestershire GB
| Patent application number | Description | Published |
|---|---|---|
| 20110288745 | DUAL FUEL ENGINE CONTROL UNIT - A multi-mode engine system comprising an engine adapted to operate in a plurality of different modes including a first mode in which the engine is fuelled substantially entirely by a first fuel, and a second mode in which the engine is fuelled substantially entirely by a second fuel, or by a mixture of the first and second fuels, the engine comprising: a first engine control unit (ECU) for controlling the flow of the first fuel into the engine when the engine is operating in the first mode; a plurality of first sensors operatively connected to the first ECU, each of which first sensors is adapted to sense a first variable, and to emit a first input signal dependent on a value of the sensed first variable; and a second ECU operatively connected to the first ECU; wherein the first ECU comprises: a signal receiver for receiving the first input signals, and an output for emitting a first output signal dependent on the first input signals, which first output signal determines the amount of first fuel supplied to the engine; and the second ECU being adapted to modify the first output signal when the engine is running in the second mode to produce a first modified signal and a second calculated signal; the first modified signal determining the amount of first fuel supplied to the engine when the engine is operating in the second mode, and the second calculated signal determining the amount of second fuel supplied to the engine when the engine is operating in the second mode. | 11-24-2011 |
Trevor Lee Fletcher, Nr Loughborough GB
| Patent application number | Description | Published |
|---|---|---|
| 20100263352 | EXHAUST SYSTEM - An exhaust system ( | 10-21-2010 |
William Roger Fletcher, Shropshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20120086434 | WIDE-DYNAMIC RANGE ELECTROMETER WITH A FAST RESPONSE - A method and apparatus for measuring current includes sensing a first voltage at the output of an amplifier and computing a current based on the first voltage and the resistance of a first resistive element, which is electrically coupled between an inverting input of the amplifier and the output of the amplifier, if the first voltage is below a predetermined level. The method also includes sensing a second voltage at the output of a buffer and computing a current based on the first and second voltages and the resistances of the first resistive element and a second resistive element, which is electrically coupled between the inverting input of the amplifier and an input of the buffer and is also electrically coupled to the output of the amplifier through a at least one diode, if the voltage output from the amplifier is above the predetermined level. | 04-12-2012 |
William Roger Fletcher, Whitchurch GB
| Patent application number | Description | Published |
|---|---|---|
| 20110012588 | Wide-Dynamic Range Electrometer with a Fast Response - A method and apparatus for measuring current includes sensing a first voltage at the output of an amplifier and computing a current based on the first voltage and the resistance of a first resistive element, which is electrically coupled between an inverting input of the amplifier and the output of the amplifier, if the first voltage is below a predetermined level. The method also includes sensing a second voltage at the output of a buffer and computing a current based on the first and second voltages and the resistances of the first resistive element and a second resistive element, which is electrically coupled between the inverting input of the amplifier and an input of the buffer and is also electrically coupled to the output of the amplifier through a at least one diode, if the voltage output from the amplifier is above the predetermined level. | 01-20-2011 |