Patents by Inventor John H. Oates
John H. Oates 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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Patent number: 7453922Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: November 18, 2008Assignee: Mercury Computer Systems, Inc.Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus
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Patent number: 7376175Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: November 8, 2002Date of Patent: May 20, 2008Assignee: Mercury Computer Systems, Inc.Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mizra Cifric, Ian N. Dunn, Michael J. Vinskus
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Patent number: 7327780Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: February 5, 2008Assignee: Mercury Computer Systems, Inc.Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus
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Patent number: 7248623Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: July 24, 2007Assignee: Mercury Computer Systems, Inc.Inventor: John H. Oates
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Patent number: 7218668Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: May 15, 2007Assignee: Mercury Computer Systems, Inc.Inventors: John H. Oates, Jonathan E. Greene
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Patent number: 7210062Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: April 24, 2007Assignee: Mercury Computer Systems, Inc.Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus
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Patent number: 7203221Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: April 10, 2007Assignee: Mercury Computer Systems, Inc.Inventor: John H. Oates
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Patent number: 7177344Abstract: The invention provides improved CDMA, WCDMA (UTMS) or other spread spectrum communication systems of the type that processes one or more spread-spectrum waveforms, each representative of a waveform received from a respective user (or other transmitting device). The improvement is characterized by a first logic element that generates a residual composite spread-spectrum waveform as a function of an arithmetic difference between a composite spread-spectrum waveform for all users (or other transmitters) and an estimated spread-spectrum waveform for each user. It is further characterized by one or more second logic elements that generate, for at least a selected user (or other transmitter), a refined spread-spectrum waveform as a function of a sum of the residual composite spread-spectrum waveform and the estimated spreads-spectrum waveform for that user.Type: GrantFiled: March 14, 2002Date of Patent: February 13, 2007Assignee: Mercury Computer Systems, Inc.Inventor: John H. Oates
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Patent number: 7164706Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: January 16, 2007Assignee: Mercury Computer Systems, Inc.Inventor: John H. Oates
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Patent number: 7139306Abstract: The invention provides improved CDMA, WCDMA (UTMS) or other spread spectrum communication systems of the type that processes one or more spread-spectrum waveforms, each representative of a waveform received from a respective user (or other transmitting device). The improvement is characterized by a first logic element that generates a residual composite spread-spectrum waveform as a function of an arithmetic difference between a composite spread-spectrum waveform for all users (or other transmitters) and an estimated spread-spectrum waveform for each user. It is further characterized by one or more second logic elements that generate, for at least a selected user (or other transmitter), a refined spread-spectrum waveform as a function of a sum of the residual composite spread-spectrum waveform and the estimated spread-spectrum waveform for that user.Type: GrantFiled: March 14, 2002Date of Patent: November 21, 2006Assignee: Mercury Computer Systems, Inc.Inventor: John H. Oates
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Patent number: 7110440Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: September 19, 2006Assignee: Mercury Computer Systems, Inc.Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus
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Patent number: 7110431Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: GrantFiled: March 14, 2002Date of Patent: September 19, 2006Assignee: Mercury Computer Systems, Inc.Inventor: John H. Oates
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Patent number: 7110437Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a digital signal processor (“DSP”) that processes user waveforms. The DSP has an associated memory and an associated direct memory access (“DMA”) controller that controls access to that memory. A programmable logic device (“PLD”) is coupled to the DMA controller and configures it to move data relating to user waveform characteristics from the memory to a buffer external to the DSP.Type: GrantFiled: March 14, 2002Date of Patent: September 19, 2006Assignee: Mercury Computer Systems, Inc.Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus
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Patent number: 7099374Abstract: The invention provides improved CDMA, WCDMA (UTMS) or other spread spectrum communication systems of the type that processes one or more spread-spectrum waveforms, each representative of a waveform received from a respective user (or other transmitting device). The improvement is characterized by a first logic element that generates a residual composite spread-spectrum waveform as a function of an arithmetic difference between a composite spread-spectrum waveform for all users (or other transmitters) and an estimated spread-spectrum waveform for each user. It is further characterized by one or more second logic elements that generate, for at least a selected user (or other transmitter), a refined spread-spectrum waveform as a function of a sum of the residual composite spread-spectrum waveform and the estimated spread-spectrum waveform for that user.Type: GrantFiled: March 14, 2002Date of Patent: August 29, 2006Assignee: Mercury Computer Systems, Inc.Inventor: John H. Oates
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Publication number: 20030231702Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: ApplicationFiled: November 8, 2002Publication date: December 18, 2003Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus
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Publication number: 20030202566Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: ApplicationFiled: March 14, 2002Publication date: October 30, 2003Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus
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Publication number: 20030202559Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: ApplicationFiled: March 14, 2002Publication date: October 30, 2003Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, Paul E. Cantrell, Frank P. Lauginiger, David E. Majchrzak, Mirza Cifric, William J. Jenkins, Ian N. Dunn, Michael J. Vinskus
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Publication number: 20030198197Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: ApplicationFiled: March 14, 2002Publication date: October 23, 2003Inventors: John H. Oates, Frank P. Lauginiger, Steven R. Imperiali, David E. Majchrzak, Alden J. Fuchs, Paul E. Cantrell, Kathleen J. Jacques, Mirza Cifric, Jonathan E. Greene, Ian N. Dunn, William J. Jenkins, Michael J. Vinskus
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Publication number: 20030191887Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: ApplicationFiled: March 14, 2002Publication date: October 9, 2003Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus
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Publication number: 20030128739Abstract: The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, “gamma matrix”) that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, “R-matrix”) that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.Type: ApplicationFiled: March 14, 2002Publication date: July 10, 2003Inventors: John H. Oates, Steven R. Imperiali, Alden J. Fuchs, Kathleen J. Jacques, Jonathan E. Greene, William J. Jenkins, Frank P. Lauginiger, David E. Majchrzak, Paul E. Cantrell, Mirza Cifric, Ian N. Dunn, Michael J. Vinskus