Patents Assigned to Cambridge Consultants Limited
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Publication number: 20120080611Abstract: A photometric device for investigating a sample, comprises an array of radiation sources that are spaced apart from one another, and which are operable to generate radiation that differs from that generated by the other radiation sources in the array. The device includes a lens arrangement for focusing the radiation at a region of space where a sample may be located for example by means of a sample holder, and at least one detector for receiving radiation from the region of space. Preferably, a number of detectors are employed that are spaced apart from one another, and especially about an axis of the device, so that one radiation detector can detect radiation transmitted by the sample and the other detectors can detect radiation scattered by it. The radiation sources may be time division multiplexed so that in each time slot the detectors receive radiation originating from each radiation source.Type: ApplicationFiled: February 2, 2009Publication date: April 5, 2012Applicant: CAMBRIDGE CONSULTANTS LIMITEDInventors: Robert Jones, Roger Fane Sewell, Paul D. Ryder, Matthew J. Hayes, Edwin C. Carter
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Publication number: 20100212667Abstract: A method of filling a drug capsule (2) for a dry powder inhaler comprising introducing a dose of powdered active substance (4) into the capsule and introducing a separate quantity of filler particles (6) into the capsule (2), said filler particles being of different composition and having a larger average particle size than the active substance.Type: ApplicationFiled: August 16, 2007Publication date: August 26, 2010Applicant: CAMBRIDGE CONSULTANTS LIMITEDInventors: Simon James Smith, David Stuart Harris
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Patent number: 7750841Abstract: Apparatus for determining positional information relating to an object, comprising: means for receiving, comprising a plurality of receiving elements; detection means for detecting signals received at the receiving elements and for generating output signals representative of the received signals; and processing means operable to apply, for each receiving element, a process to the output signal generated from the signal received at that receiving element separately from any output signal generated from a signal received at any other receiving element, so as to obtain a respective value of a parameter representative of the signal received at that receiving element, the processing means being further operable to compare the values of the parameter thus obtained so as to, obtain positional information relating to the object.Type: GrantFiled: November 3, 2004Date of Patent: July 6, 2010Assignee: Cambridge Consultants LimitedInventors: Gordon Kenneth Andrew Oswald, Alexandra Joanna Geoghegan, Charles Peter Bell, Nicholas Simon Russ, Mario Del Mistro, Michael Hugh Burchett, Desmond Keith Phillips, Vincent Arne Utsi
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Publication number: 20100000531Abstract: A dry powder inhaler comprises two parts (2, 4) connected by an integrally moulded, e.g. living hinge (6), so as to be moveable from an open position to a closed position. At least one of the parts (2, 4) defines at least part of a circulating airflow chamber (12), wherein when said parts (2, 4) are in said closed position, the inhaler comprises an airflow path including the circulating airflow chamber (12).Type: ApplicationFiled: June 13, 2007Publication date: January 7, 2010Applicant: CAMBRIDGE CONSULTANTS LIMITEDInventors: Simon James Smith, David Stuart Harris
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Publication number: 20090320837Abstract: A dry powder inhaler comprises: a cyclone chamber having a cyclone chamber outlet (20) extending substantially axially therefrom; a mouthpiece channel (26) having a central axis; and a plenum portion (58) connecting said cyclone chamber outlet (20) and said mouthpiece channel, the mouthpiece channel axis Am being offset from, and making a non-parallel angle with, the axis of the cyclone outlet Ac such that in use air exits the cyclone outlet (20) at least partly tangentially into the mouthpiece (28).Type: ApplicationFiled: June 13, 2007Publication date: December 31, 2009Applicant: CAMBRIDGE CONSULTANTS LIMITEDInventors: Simon James Smith, David Stuart Harris, Rachel Victoria Striebig, Julie Suzanne Pearl
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Publication number: 20080316605Abstract: An optical device, such as spectacles or goggles, has a segmented display (3) formed in a transparent substrate by directing light from a number of light sources (15) through respective light guides (14) and reflecting the light out of the transparent substrate at the ends of the light guides (14) to form individually illuminable segments (13). The device has the advantage that an electronically-generated display can be displayed to a viewer in combination with the image transmitted through the transparent substrate simply and relatively inexpensively.Type: ApplicationFiled: May 5, 2006Publication date: December 25, 2008Applicant: Cambridge Consultants LimitedInventors: Michael S. Hazell, Nicola Millar, Roger F. Golder, Paul Williamson
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Patent number: 7227493Abstract: An apparatus and method obtains positional information about one or more objects in a detection field. An array includes a transmitting element and a plurality of receiving elements. A truncated cross-correlation function may be applied to determine the interval between signals received by a plurality of the receiving elements, thereby to determine an angular position of an object. A warning zone may be defined and it is determined whether an object is within the warning zone. Also disclosed are techniques for stretching received signals, and techniques for obtaining positional information relating to an object using non-Doppler radar.Type: GrantFiled: June 26, 2003Date of Patent: June 5, 2007Assignee: Cambridge Consultants LimitedInventors: Gordon Kenneth Andrew Oswald, Alan Trevor Richardson, Michael Hugh Burchett, Eric Nicol Clouston, Danielle Emma Toutoungi
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Patent number: 7084980Abstract: The present invention concerns an interferometer comprising: an optical body adapted in operation to mount a measurement area comprising a film which is capable of acting as a two dimensional environment for surface plasmons and an adjacent reference area; an optical beam generation means for irradiating the reference and measurement areas with radiation capable of generating surface plasmon resonance; optical means for combining radiation reflected from the reference and measurement areas, and pixelated detection means for generating data representing two dimensional images of the combined radiation beams.Type: GrantFiled: August 1, 2002Date of Patent: August 1, 2006Assignee: Cambridge Consultants LimitedInventors: Robert Jones, Michael Hazel, Gavin Roberts
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Patent number: 7068211Abstract: An apparatus and method obtains positional information about one or more objects in a detection field. An array includes a transmitting element and a plurality of receiving elements. A truncated cross-correlation function may be applied to determine the interval between signals received by a plurality of the receiving elements, thereby to determine an angular position of an object. A warning zone may be defined and it is determined whether an object is within the warning zone. Also disclosed are techniques for stretching received signals, and techniques for obtaining positional information relating to an object using non-Doppler radar.Type: GrantFiled: February 8, 2001Date of Patent: June 27, 2006Assignee: Cambridge Consultants LimitedInventors: Gordon Kenneth Andrew Oswald, Alan Trevor Richardson, Michael Hugh Burchett, Eric Nicol Clouston, Danielle Emma Toutoungi
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Publication number: 20060125440Abstract: A controller for a synchronous motor, the controller being operable in use to receive from sensor means coupled to a synchronous motor actual angular displacement signals representative of angular displacements from a reference orientation of a rotor of a synchronous motor, to transmit the actual angular displacement signals to a controllable alternating current (ac) supply for the motor, periodically to measure one or more parameters related to the torque of a synchronous motor, and between transmissions of the actual angular displacement signals, to derive from the actual angular displacement signals and measured parameters at least one estimated angular displacement signal representative of an estimated angular displacement from a reference orientation of a rotor of a synchronous motor, to enable the controller to cause to flow between the supply and a synchronous motor a generally sinusoidal current that is synchronised to the angular displacement of the rotor from the reference orientation.Type: ApplicationFiled: November 6, 2003Publication date: June 15, 2006Applicant: Cambridge Consultants LimitedInventors: Benjamin Gordon, Robert Bower
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Patent number: 7016779Abstract: There is described a method for controlling a system, for example a Diesel engine, that is subject to transient changes of target outputs. The target outputs specify outputs required from the system. “Steady state” information is used to give optimum inputs for the system when the target outputs are substantially constant. A model of the system is used to predict the outputs of the system in response to candidate new values for the inputs of the system. The method combines the steady state information with the predicted response of the system to determine inputs to the system which will cause the system outputs to match the target outputs as closely as possible. For each candidate (in one embodiment), the method calculates the difference between the steady state inputs and a candidate, and the difference between the target outputs and the predicted outputs that would result from the adoption of that candidate, to determine an optimum candidate which is then used to update the inputs to the system.Type: GrantFiled: January 31, 2003Date of Patent: March 21, 2006Assignee: Cambridge Consultants LimitedInventor: Robert Owen Bowyer
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Patent number: 6998774Abstract: An electroluminescent display has a transparent front-electrode, rear electrodes, and a layer of electroluminescent material located between the first and second electrodes. Conductive tracks are electrically connected to the rear electrodes and supply a driving voltage for the electroluminescent material to the rear electrodes. A backplane layer is provided between the electroluminescent material layer and the conductive tracks, and is electrically connected to the front electrode such that the potential difference across the electroluminescent material layer in the region of the conductive tracks is substantially zero. In this way, when the conductive track is supplying the driving voltage to the rear-electrodes, the electroluminescent material layer is not illuminated by an electric field between the conductive tracks and the front electrode. Gaps may be defined in the front electrode corresponding substantially to the location of the conductive tracks.Type: GrantFiled: May 22, 2000Date of Patent: February 14, 2006Assignee: Cambridge Consultants LimitedInventors: Christopher John Andrew Barnardo, Christopher James Newton Fryer
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Publication number: 20050131620Abstract: There is described a method for controlling a system, for example a Diesel engine, that is subject to transient changes of target outputs. The target outputs specify outputs required from the system. “Steady state” information is used to give optimum inputs for the system when the target outputs are substantially constant. A model of the system is used to predict the outputs of the system in response to candidate new values for the inputs of the system. The method combines the steady state information with the predicted response of the system to determine inputs to the system which will cause the system outputs to match the target outputs as closely as possible. For each candidate (in one embodiment), the method calculates the difference between the steady state inputs and a candidate, and the difference between the target outputs and the predicted outputs that would result from the adoption of that candidate, to determine an optimum candidate which is then used to update the inputs to the system.Type: ApplicationFiled: January 31, 2003Publication date: June 16, 2005Applicant: Cambridge Consultants LimitedInventor: Robert Bowyer
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Patent number: 6893326Abstract: An indium tin oxide (ITO) coating is selectively removed from a substrate by printing a mask on the coated surface of the substrate to cover those regions of the surface on which the ITO is to remain. The substrate is then abraded to remove the ITO from the unmasked regions of the surface and the mask is removed with a solvent. The method provides quick and accurate removal of ITO without the use of acids or lasers.Type: GrantFiled: August 22, 2001Date of Patent: May 17, 2005Assignee: Cambridge Consultants LimitedInventor: Frank Tyldesly
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Patent number: 6836333Abstract: The invention concerns an interferometric optical block for Fourier Transform spectrometers having three planar nominally parallel surfaces with the two outer surfaces adapted to act as beam reflectors for internal light and the third surface in operation acting as a beam splitter and beam combiner, the optical block having an input portion by means of which an input beam of light to be analysed can be input so as partially to pass through said third surface to be internally reflected by one of said outer reflectors, and partially to be reflected by said third surface so as then to be internally reflected by the other of said outer reflectors whereby light internally reflected by said outer reflectors is combined at said third surface to produce an exit beam, and wherein said outer surfaces have an inclination with respect to one another so as to make a variation in path lengths in the light forming the exit beam so as to generate an interference fringe field.Type: GrantFiled: June 21, 2002Date of Patent: December 28, 2004Assignee: Cambridge Consultants LimitedInventors: Robert Jones, Michael Stuart Hazell
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Publication number: 20040119633Abstract: Apparatus for and methods of obtaining positional information about one or more objects in a detection field are disclosed. An array including a transmitting element and a plurality of receiving elements is provided. In one aspect a truncated cross-correlation function is applied to determine the interval between signals received by a plurality of the receiving elements, thereby to determine an angular position of an object. In another aspect a warning zone is defined and it is determined whether an object is within the warning zone. Also disclosed are techniques for stretching received signals, and techniques for obtaining positional information relating to an object using non-Doppler radar. Various implementations, modifications and applications of the techniques described are disclosed. Typical applications of the techniques described are with vehicles.Type: ApplicationFiled: June 26, 2003Publication date: June 24, 2004Applicant: Cambridge Consultants LimitedInventors: Gordon Kenneth Andrew Oswald, Alan Trevor Richardson, Michael Hugh Burchett, Eric Nicol Clouston, Danielle Emma Toutoungi
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Patent number: 6687312Abstract: A signal processing system including at least one control loop having a forward path and a feedback path. A signal processor produces a representation of the desired downstream output amplitude and phase as a pair of substantially orthogonal signal components. A feedback-path splitter splits a feedback signal into a plurality of substantially orthogonal feedback signal components which are combined with the corresponding substantially orthogonal signal components to create error signals. A plurality of modulators control the amplitude, frequency, and/or phase of the pair of substantially orthogonal signal components on the basis of control signals which are derived from the error signals. The outputs of the plurality of modulating means are then combined into an output signal. A phase-shift controller in the forward path of the control loop derives the control signals from the error signals on the basis of monitored signal values from at least one predetermined point in the signal processing system.Type: GrantFiled: March 8, 2000Date of Patent: February 3, 2004Assignee: Cambridge Consultants LimitedInventor: Thomas Richard Davies
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Patent number: 6515615Abstract: A signal processing method is particularly for use in object detection systems which allows a sensed target signal to be “held” once it has raised above a detection-threshold. The method involves reducing the detection-threshold values of the detection-threshold function within the target region. This method is useful for such applications as automotive radar sensors, airbag deployment systems, communication systems demodulation, security sensor systems, sanitary flushing systems and lighting systems.Type: GrantFiled: January 10, 2001Date of Patent: February 4, 2003Assignee: Cambridge Consultants LimitedInventors: Michael H Burchett, Thomas Finbarr Livesey
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Publication number: 20020161988Abstract: An integrated circuit contains a microprocessor core, program memory and separate data storage, together with analog and digital signal processing circuitry. The ALU is 16 bits wide, but a 32-bit shift unit is provided, using a pair of 16-bit registers. The processor has a fixed length instruction format, with an instruction set including multiply and divide operations which use the shift unit over several cycles. No interrupts are provided. external pins of the integrated circuit allow for single stepping and other debug operations, and a serial interface (SIF) which allows external communication of test dat or working data as necessary. The serial interface has four wires (SERIN, SEROUT, SERCLK, SERLOADB), allowing handshaking with a master apparatus, and allowing direct access to the memory space of the processor core, without specific program control.Type: ApplicationFiled: October 29, 2001Publication date: October 31, 2002Applicant: Cambridge Consultants Limited.Inventors: Stephen John Barlow, Alistair Guy Morfey, James Digby Collier
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Patent number: 6411250Abstract: A vehicle (160) such as a motor road vehicle is fitted with an electromagnetic sensor system comprising transmitting means (e.g. 4, 1) for transmitting a radio frequency signal, receiving means (e.g. 2, 6) for receiving reflections of said signal from remote objects, sampling means (20, 28) operable to sample the received reflected signal (or a signal derived therefrom), and processing means (e.g. 36) for processing the sampled signal, and operable to detect said reflections in the sampled signal, and to determine information on the presence, position and/or range of said object. The system includes filter means (e.g. 34) for preventing radio signals transmitted by other sources or noise spikes from causing interference which results in spurious detections or indications of range by the processing means.Type: GrantFiled: May 15, 2000Date of Patent: June 25, 2002Assignee: Cambridge Consultants LimitedInventors: Gordon Kenneth Andrew Oswald, Alan Trevor Richardson, Nicholas John Kerry