Patents by Inventor Andrew Bateman
Andrew Bateman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220125011Abstract: Approaches for synchronising electronic animal identification tag readers for reading electronic animal identification tags attached to animals Embodiments include using a pulse from a GNSS receiver, adjusting for an error between a reference cadence signal and a local cadence signal, and using a synchronisation signal.Type: ApplicationFiled: February 8, 2019Publication date: April 28, 2022Inventors: Leigh Andrew BATEMAN, Benjamin Thomas John WILKINSON, Brian Antony CLAYTON
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Publication number: 20140039959Abstract: A computerized compliance management system or a computerized competency/compliance management system that facilitates the planning, management, administration and taking of assessments and delivers the results of the assessment with reference to relevant competencies for members or people working in teams or groups and particularly those working in teams or groups for large organisations.Type: ApplicationFiled: May 23, 2013Publication date: February 6, 2014Inventors: Mary Joan Clarke, Matthew Charles Russell, Andrew Bateman
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Publication number: 20040202195Abstract: A communication system having at least one transmitter and at least one receiver is arranged to communicate with one another over a communications channel so as to transmit information from the transmitter to the receiver. The communications channel consists of two or more carriers. The transmitter is arranged to divide information to be transmitted on channels into packets of information and to transmit different packets of information on at least two carriers. Thereby, the information transfer rate of the channel is increased. Each carrier can include sub-carriers so as to further increase the information transfer rate. Furthermore, each carrier can have more than time slot and the transmitter can select any combination available of carriers or time slots of a carrier to aid high speed information transfer.Type: ApplicationFiled: December 24, 2003Publication date: October 14, 2004Inventors: Andrew Bateman, Mehdi Nouri
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Patent number: 6701133Abstract: A method and apparatus is provided for locking a local oscillator to a reference oscillator. The reference oscillator is arranged to transmit a signal containing two reference pilot tones in a signal sideband. The apparatus samples the received signal and makes a frequency shifted copy where the shift is equal to the expected separation between the reference tones. The non-shifted and shifted signals are then combined in the frequency domain to constructively reinforce one of the reference pilot tones which is then searched for. Once the tone has been identified, a correction to the local oscillator frequency is calculated. The apparatus may be of particular use in a radio telemetry system in which it is important that the frequency of the local oscillators in the transmitters and receivers are very accurately matched to each other and where, in order to reduce interference, all the clocks used in the system are locked to a master clock.Type: GrantFiled: October 6, 2000Date of Patent: March 2, 2004Assignee: Fairfield Industries, Inc.Inventors: Richard Michael Bennett, Andrew Bateman
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Patent number: 6580320Abstract: The predistortion circuit (200) predistorts the input signal to a non-linear signal processing device in order to linearise its output. The predistortion circuit (200) derives the predistortion by sampling the input at (210) and multiplies it with itself using mixers (multipliers) (220, 226, 230, 236, etc.) in order to generate various orders of distortion (212, 214, etc.) which are summed to provide the predistortion. Filter/time delay means (240, 242, 244) are incorporated in the paths which generate the orders of distortion in order to introduce a phase and/or amplitude variation with frequency into the distortion. The filter/time delay means can be implemented by adaptive filters in digital signal processing circuits (DSPs). The DSPs can sample the output of the signal processing device being linearised in order to obtain feedback for adapting the filter(s).Type: GrantFiled: November 30, 2001Date of Patent: June 17, 2003Assignee: Andrew CorporationInventors: Peter Kenington, Andrew Bateman
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Publication number: 20020150556Abstract: This invention relates to a recombinant nucleic acid vector comprising a first expression cassette comprising a first promoter operably linked to a nucleic acid sequence encoding a syncytium-inducing polypeptide, wherein the first expression cassette is flanked on either side by a site recognized by a recombinase. The invention also includes a second expression cassette comprising a tissue-specific promoter operably linked to a nucleic acid sequence encoding a recombinase. The invention also includes cells and compositions including these expression cassettes and methods of reducing tumor volume by expression of these expression cassettes.Type: ApplicationFiled: March 30, 2001Publication date: October 17, 2002Inventors: Richard G. Vile, Kevin Harrington, Steven Murphy, Andrew Bateman
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Patent number: 6381286Abstract: A Cartesian loop transmitter for transmitting baseband signals is disclosed. The disclosed Cartesian loop includes a forward path having a first input for receiving the baseband signals and a second input and a feedback path having an input from the forward path. The forward path including an upconverter to upconvert the input signals to a signal to be transmitted, an attenuator having selectable attenuation and a plurality of power amplifier stages. The feedback path including a pin diode attenuator having selectable attenuation and a downconverter to downconvert the input from the forward path. The feedback path provides an error signal indicative of the non-linearity of the forward path to the second input of the forward path.Type: GrantFiled: May 7, 1998Date of Patent: April 30, 2002Assignee: University of BristolInventors: Ross J. Wilkinson, Peter B. Kenington, Joseph P. McGeehan, Mark A. Beach, Andrew Bateman
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Publication number: 20020042127Abstract: Disclosed is a cell which expresses a surface marker associated with a professional antigen presenting cell, and a fusogenic membrane protein, where the cell may also express at its surface a tumor cell marker. Also disclosed is a fusion hybrid formed by the fusion of a tumor cell and a professional antigen presenting cell (APC) such that the resulting fusion hybrid expresses an APC marker, a tumor cell marker, and a fusogenic membrane glycoprotein. Also disclosed are compositions comprising the cells and fusion hybrids, and methods of making and using the hybrids.Type: ApplicationFiled: November 22, 1999Publication date: April 11, 2002Inventors: STEPHEN JAMES RUSSELL, RICHARD VILE, ANDREW BATEMAN, ALAN MELCHER
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Patent number: 6229992Abstract: A full-duplex radio transceiver, in which cancellation of transmission signals in the receive path is achieved by sampling the transmission signals, and controllably adjusting the gain and phase of the sampled signal, before subtracting the adjusted signal from the received signals in order to minimise the component of the transmission signals appearing in the received signals. Processing is done in a DSP at or near baseband.Type: GrantFiled: September 29, 1997Date of Patent: May 8, 2001Assignee: University of BristolInventors: Joseph Peter McGeehan, Andrew Bateman, Mark Anthony Beach, Peter Blakeborough Kenington, Wycliffe Timothy Slingsby
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Patent number: 5939951Abstract: An apparatus is disclosed for processing an input signal. The apparatus includes two feedback loops for generating output signal components from the input signal. Each loop contains an oscillator, which has a frequency or phase which is variable in response to a control signal, and a comparator for generating the control signal. The oscillator generates a loop output signal which forms one of the components of the output signal. The apparatus also includes a combiner for combining the loop output signals to produce the output signal. For each loop, the apparatus also produces a feedback loop operating signal, these signals being dependent on the output signal and in phase quadrature with one another. One input of the comparator in each loop receives the feedback loop operating signal, and the other input of the comparator receives a component of the input signal.Type: GrantFiled: November 24, 1997Date of Patent: August 17, 1999Assignee: BTG International LimitedInventors: Andrew Bateman, Kam Yuen Chan
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Patent number: 5787079Abstract: A system for creating multiple subchannels in a single two-way radio channel and a power control system for a mobile radio transmitter are described. Each subchannel in the system is capable of carrying voice or data. Each subchannel is split into an upper and a lower band with the upper band placed in a particular frequency range above the center of the channel and the lower band is placed in a corresponding frequency range below the center of the channel. Either one or two pilot tones placed at or adjacent to the center of the channel are used to provide a reference for all of the subchannels to allow for correction of distortions when the signal is received. The system includes base station with a transmitter and receiver and a plurality of mobile units each with a transmitter and a receiver. The base station transmits a signal which is the sum of all the subchannels. The mobile unit receives the signal, separates and processes the particular subchannel for that mobile unit.Type: GrantFiled: April 23, 1996Date of Patent: July 28, 1998Assignee: Unique Wireless Developments, L.L.C.Inventors: Andrew Bateman, Peter B. Kenington, Richard M. Bennett
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Patent number: 5719527Abstract: A highly efficient linear amplifier and/or modulator and demodulator comprising first and second feedback loops is provided. Each loop processes a component of the input signal and the component signals are recombined at, for example, a summing junction 18. The feedback signals for each loop are dependent upon the output signal and are in phase quadrature. The input signal is separated into I and Q signals, which are also in phase quadrature, by a component separator 10.Type: GrantFiled: November 22, 1994Date of Patent: February 17, 1998Assignee: British Technology Group LimitedInventors: Andrew Bateman, Kam Yuen Chan
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Patent number: 5334946Abstract: Broadband amplifiers which are intended to be linear suffer from distortion and although many techniques have been devised to overcome this problem significant improvements are required especially at frequencies above 100 MHz. An error signal is formed from the output of the amplifier 4 by comparison in a subtractor 11 with its input and the error signal is combined in a coupler 17 with the amplifier output to reduce distortion. The present invention provides automatic amplitude and phase control of the signals forming the error signal by means of components 24 and 25 in a multi-channel input and in the error signal by means of components 13 and 14. These components receive control signals from feedback networks 18' and 20' which each process two of three input signals from: couplers 34, 36 before the subtractor 11, a coupler 22 which passes the error signal and a coupler 21 after the coupler 17.Type: GrantFiled: August 14, 1992Date of Patent: August 2, 1994Assignee: British Technology Group LimitedInventors: Peter B. Kenington, Mark A. Beach, Andrew Bateman, Joseph P. McGeehan
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Patent number: 5157345Abstract: Broadband amplifiers which are intended to be linear suffer from distortion and although many techniques have been devised to overcome this problem significant improvements are required especially at frequencies above 100 MHz. An error signal is formed from the output of an amplifier by comparison in a subtractor with its input and the error signal is combined in a coupler with the amplifier output to reduce distortion. The present invention provides automatic amplitude and phase control of the signals forming the error signal by two groups of adjustment means, one group in a multi-channel input path and one group in the error signal path. These groups receive control signals from respective feedback networks which each process two of three input signals from: couplers before the subtractor, a coupler which passes the error signal and a coupler situated after the coupler which combines the amplifier output signal and the error signal.Type: GrantFiled: April 24, 1991Date of Patent: October 20, 1992Assignee: National Research Development CorporationInventors: Peter B. Kenington, Mark A. Beach, Andrew Bateman, Joseph P. McGeehan
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Patent number: 5134630Abstract: In deriving a control signal for recombining the parts of the spectrum separated by a frequency notch in transparent tone-in-band signals, cross-correlation products give rise to undesirable frequency and phase jitter. In a receiver which overcomes this problem an input signal E containing the notch is passed to two first mixers and then portions corresponding to the lower and upper portions of the input spectrum are selected by two mirror filters before being translated in frequency by two second mixers to a final output band in which the notch is eliminated. Two selection filters select parts of the spectra at the outputs of the first mixers which correspond to an overlap region of the said lower and upper portions when derived in a transmitter and apply them to a control-signal mixer. A control signal for the second mixers is derived from the output of the control-signal mixer by noise filtering and frequency division by two.Type: GrantFiled: April 6, 1990Date of Patent: July 28, 1992Assignee: National Research Development CorporationInventor: Andrew Bateman
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Patent number: 4947453Abstract: In transparent tone-in-band communication systems a notch in the frequency band is usually formed and then the resulting spectrum is translated in frequency to an intermediate frequency range as part of the transmission process. In a transmitter of the present invention a more simple arrangement is used in which the notch is formed directly in an intermediate frequency range by using mirror filters to divide an input signal into two portions and supply respective mixers, each having one output sideband in the intermediate frequency range. The mixers receive different reference frequencies and the mixer outputs are supplied to a summing circuit whose output is passed to a band pass filter to remove the unwanted sidebands. The original frequency spectrum is restored at the receiver by mixer processes of shifting the two selected sidebands similar to, but the inverse of, those used in the transmitter.Type: GrantFiled: September 2, 1988Date of Patent: August 7, 1990Assignee: National Research Development CorporationInventors: Joseph P. McGeehan, Andrew Bateman
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Patent number: 4802191Abstract: In previous transparent tone-in band systems the notch has been removed from the frequency spectrum before a carrier signal carrying data has been demodulated. The present specification describes an arrangement in which data is recovered by first and second mixers from a signal having a spectrum containing a notch. Phase and frequency locking is obtained: either by using a third mixer fed from the inputs to the first and second mixers to provide, indirectly, one signal for a fourth mixer which also receives the carrier signals and provides demodulating signals for the first and second mixers; or by a correction system coupled to the outputs of the first and second mixers for correcting demodulating signals supplied to these mixers.Type: GrantFiled: February 26, 1987Date of Patent: January 31, 1989Assignee: National Research Development CorporationInventors: Joseph P. McGeehan, Andrew Bateman
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Patent number: 4792985Abstract: In those transparent tone-in-band systems which employ a single oscillator in the transmitter to generate a frequency notch between upper and lower portions of a band which is to be transmitted, there is not complete freedom to choose the width of the notch. In the present invention which also uses a single transmitter oscillator, one portion of the band transmitted is selected using a filter. A mixer is used to change the frequency of the input band in a way which does not allow the lower sideband to "fold" back at zero frequency and interfere with the lower transmitted portion. A further filter selects the other portion for transmission from the output of the mixer.Type: GrantFiled: November 15, 1985Date of Patent: December 20, 1988Assignee: National Research Development CorporationInventors: Joseph P. McGeehan, Andrew Bateman
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Patent number: 4691375Abstract: A communication system which uses a transmitter and a receiver. The transmitter divides a band of interest in the frequency spectrum into upper and lower portions, and frequency translates one of these portions in order to provide a frequency notch between the portions. The receiver of the system includes a receiver processor which receives the upper and lower portions, and which restores the original frequency spectrum. The receiver processor at least partially determines the final position of the restored portion.Type: GrantFiled: June 6, 1984Date of Patent: September 1, 1987Assignee: National Research Development CorporationInventors: Joseph P. McGeehan, Andrew Bateman
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Patent number: RE34036Abstract: A communication system which uses a transmitter and a receiver. The transmitter divides a band of interest in the frequency spectrum into upper and lower portions, and frequency translates one of these portions in order to provide a frequency notch between the portions. The receiver of the system includes a receiver processor which receives the upper and lower portions, and which restores the original frequency spectrum. The receiver processor at least partially determines the final position of the restored portion.Type: GrantFiled: August 28, 1989Date of Patent: August 18, 1992Assignee: National Research Development CorporationInventors: Joseph P. McGeehan, Andrew Bateman