Patents by Inventor Robert E. Rouquette
Robert E. Rouquette 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: 10310121Abstract: Methods are disclosed for sensing acoustic waves in a medium. One example includes a first elongated member, a first motion sensor sensitive to vibrations of the first elongated member, a second motion sensor spaced apart from the first motion sensor and also sensitive to vibrations of the first elongated member, and a first vibration source operably coupled to the first elongated member and configured to vibrate the first elongated member.Type: GrantFiled: November 7, 2017Date of Patent: June 4, 2019Assignee: ION Geophysical CorporationInventor: Robert E. Rouquette
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Publication number: 20180059278Abstract: Methods are disclosed for sensing acoustic waves in a medium. One example includes a first elongated member, a first motion sensor sensitive to vibrations of the first elongated member, a second motion sensor spaced apart from the first motion sensor and also sensitive to vibrations of the first elongated member, and a first vibration source operably coupled to the first elongated member and configured to vibrate the first elongated member.Type: ApplicationFiled: November 7, 2017Publication date: March 1, 2018Inventor: Robert E. ROUQUETTE
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Patent number: 9841519Abstract: Methods, systems, and apparatuses are disclosed for sensing acoustic waves in a medium. One example system includes a first elongated member, a first motion sensor sensitive to vibrations of the first elongated member, a second motion sensor spaced apart from the first motion sensor and also sensitive to vibrations of the first elongated member, and a first vibration source operably coupled to the first elongated member and configured to vibrate the first elongated member.Type: GrantFiled: March 14, 2014Date of Patent: December 12, 2017Assignee: ION GEOPHYSICAL CORPORATIONInventor: Robert E. Rouquette
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Patent number: 9784860Abstract: An underwater seismic system for reducing noise due to ghost reflections or motion through the water from seismic signals. The system includes two motion sensors. One sensor has a first response and is sensitive to platform-motion-induced noise as well as to acoustic waves. The other sensor has a different construction that isolates it from the acoustic waves so that its response is mainly to motion noise. The outputs of the two sensor responses are combined to remove the effects of motion noise. When further combined with a hydrophone signal, noise due to ghost reflections is reduced.Type: GrantFiled: May 12, 2014Date of Patent: October 10, 2017Assignee: Ion Geophysical CorporationInventors: Dale J. Lambert, Andre′ W. Olivier, Robert E. Rouquette
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Publication number: 20160018545Abstract: Methods, systems, and apparatuses are disclosed for sensing acoustic waves in a medium. One example system includes a first elongated member, a first motion sensor sensitive to vibrations of the first elongated member, a second motion sensor spaced apart from the first motion sensor and also sensitive to vibrations of the first elongated member, and a first vibration source operably coupled to the first elongated member and configured to vibrate the first elongated member.Type: ApplicationFiled: March 14, 2014Publication date: January 21, 2016Applicant: ION GEOPHYSICAL CORPORATIONInventor: Robert E. ROUQUETTE
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Patent number: 9112515Abstract: A phase-locked loop frequency synthesizer includes an L-state pulse width modulator configured to receive a reference frequency signal and at least one entry from a frequency table, and to output at least one N/N+1 modulus signals corresponding to the at least one entry from the frequency table. The synthesizer includes a divide by N/N+1 controllable modulus divider configured to receive the at least one N/N+1 modulus signals and to divide the output frequency signal by the at least one N/N+1 modulus signals to generate a second reference frequency signal. The synthesizer includes a phase frequency detector configured to receive the reference frequency signal and the second reference frequency signal and to generate an error signal. The synthesizer also includes a filter network configured to receive the error signal and to output a voltage; and a voltage controlled oscillator configured to receive the voltage and to generate the output frequency signal.Type: GrantFiled: July 11, 2014Date of Patent: August 18, 2015Assignee: SENSUS SPECTRUM LLCInventors: H. Britton Sanderford, Jr., Robert E. Rouquette, Gary A. Naden, Marc L. Reed, Gordon J. Boudreaux, Michael R. Brown
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Patent number: 9094022Abstract: A cellular network includes a node configured to transmit a data packet on a predetermined frequency, first and second base stations configured to receive signals transmitted on the predetermined frequency, and a data concentrator. The first base station and the second base station are arranged in a cellular configuration such that a first coverage area of the first base station at least partially overlaps a second coverage area of the second base station. The first base station and the second base station each receive the data packet transmitted by the node. The data concentrator is configured to collect the data packet received by the first base station and the data packet received by the second base station. The data packet includes latitude and longitude data received from a global positioning system receiver such that a location of the node may be determined from a remote location.Type: GrantFiled: January 14, 2013Date of Patent: July 28, 2015Assignee: Sensus Spectrum LLCInventors: H. Britton Sanderford, Jr., Robert E. Rouquette, Gary A. Naden, Marc L. Reed, Gordon J. Boudreaux, Michael R. Brown
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Patent number: 8982662Abstract: A multi-component sensor of a fluid-borne acoustic wave that senses pressure and up to three orthogonal particle motion components. The sensor is unresponsive to motion of the sensor mount. Furthermore, the sensor is substantially unresponsive to the turbulent flow of the acoustic medium past the sensor.Type: GrantFiled: August 31, 2011Date of Patent: March 17, 2015Assignee: ION Geophysical CorporationInventors: Robert E. Rouquette, Andre′ W. Olivier, Dale J. Lambert
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Publication number: 20140328138Abstract: An underwater seismic system for reducing noise due to ghost reflections or motion through the water from seismic signals. The system includes two motion sensors. One sensor has a first response and is sensitive to platform-motion-induced noise as well as to acoustic waves. The other sensor has a different construction that isolates it from the acoustic waves so that its response is mainly to motion noise. The outputs of the two sensor responses are combined to remove the effects of motion noise. When further combined with a hydrophone signal, noise due to ghost reflections is reduced.Type: ApplicationFiled: May 12, 2014Publication date: November 6, 2014Applicant: ION Geophysical CorporationInventors: Dale J. Lambert, Andre' W. Olivier, Robert E. Rouquette
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Publication number: 20140320182Abstract: A phase-locked loop frequency synthesizer includes an L-state pulse width modulator configured to receive a reference frequency signal and at least one entry from a frequency table, and to output at least one N/N+1 modulus signals corresponding to the at least one entry from the frequency table. The synthesizer includes a divide by N/N+1 controllable modulus divider configured to receive the at least one N/N+1 modulus signals and to divide the output frequency signal by the at least one N/N+1 modulus signals to generate a second reference frequency signal. The synthesizer includes a phase frequency detector configured to receive the reference frequency signal and the second reference frequency signal and to generate an error signal. The synthesizer also includes a filter network configured to receive the error signal and to output a voltage; and a voltage controlled oscillator configured to receive the voltage and to generate the output frequency signal.Type: ApplicationFiled: July 11, 2014Publication date: October 30, 2014Applicant: Sensus Spectrum LLCInventors: H. Britton SANDERFORD, JR., Robert E. ROUQUETTE, Gary A. NADEN, Marc L. REED, Gordon J. BOUDREAUX, Michael R. BROWN
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Patent number: 8730766Abstract: An underwater seismic system for reducing noise due to ghost reflections or motion through the water from seismic signals. The system includes two motion sensors. One sensor has a first response and is sensitive to platform-motion-induced noise as well as to acoustic waves. The other sensor has a different construction that isolates it from the acoustic waves so that its response is mainly to motion noise. The outputs of the two sensor responses are combined to remove the effects of motion noise. When further combined with a hydrophone signal, noise due to ghost reflections is reduced.Type: GrantFiled: January 21, 2011Date of Patent: May 20, 2014Assignee: ION Geophysical CorporationInventors: Dale J. Lambert, André W. Olivier, Robert E. Rouquette
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Patent number: 8625722Abstract: A Gaussian Frequency Shift Key (GFSK) receiver includes a receiver front end to receive a GFSK-modulated signal and convert the received GFSK-modulated signal to a baseband frequency modulated signal, a channel filter to reduce channel interference which is adjacent to a desired channel of the baseband frequency modulated signal, a demodulator to demodulate the channel filtered baseband modulated signal and to recover a sequence of symbols, a digital filter to reduce inter-symbol interference (ISI) from the sequence of symbols, a slicer to produce symbol decisions based on the filtered sequence of symbols, and a symbol-to-bit mapper to map the symbol decisions to data bits.Type: GrantFiled: July 30, 2010Date of Patent: January 7, 2014Assignee: Sensus USA Inc.Inventor: Robert E. Rouquette
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Patent number: 8374228Abstract: A remote endpoint monitor device includes a remote endpoint device including a meter, a position locator, a frequency selector, and a communication unit. The meter is configured to measure a service parameter to provide a measured service parameter value. The position locator is configured to determine a position of the remote endpoint device. The frequency selector is configured to select a transmission frequency device based on the determined position. The transmitter is configured to transmit service information data including the service parameter value at the transmission frequency selected by the frequency selector. A method of a remote endpoint monitor device includes measuring a service parameter, determining a position of the remote endpoint device, selecting a transmission frequency of the remote end point device, and transmitting service information data at the transmission frequency.Type: GrantFiled: December 19, 2008Date of Patent: February 12, 2013Assignee: M&FC Holding, LLCInventors: H. Britton Sanderford, Jr., Robert E. Rouquette, Gary A. Naden, Marc L. Reed, Gordon J. Boudreaux, Michael R. Brown
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Publication number: 20120057430Abstract: A multi-component sensor of a fluid-borne acoustic wave that senses pressure and up to three orthogonal particle motion components. The sensor is unresponsive to motion of the sensor mount. Furthermore, the sensor is substantially unresponsive to the turbulent flow of the acoustic medium past the sensor.Type: ApplicationFiled: August 31, 2011Publication date: March 8, 2012Applicant: ION GEOPHYSICAL CORPORATIONInventors: Robert E. Rouquette, Andre' W. Olivier, Dale J. Lambert
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Patent number: 8120507Abstract: A two-tier communication system for a seismic streamer. The communication system operates over an unshielded twisted-pair communication line extending the length of the streamer. Repeater units having a repeater function and a device controller function divide the twisted pair into line segments. Coils on each segment couple signals inductively to collocated external devices in a low-speed 2400 baud FSK data link between the devices and an associated device controller. A Gaussian 8-level FSK high-speed 60 kbit/s data link is established along all the segments with the repeaters re-transmitting boosted signals along the entire length of the communication line. The coils are transparent at the high-speed data rate. Time division multiple access (TDMA) or frequency division multiple access (FDMA) is used to accommodate the two links on the single twisted pair.Type: GrantFiled: March 25, 2009Date of Patent: February 21, 2012Assignee: Ion Geophysical CorporationInventors: Robert E. Rouquette, Clem B. Guillot, III, Robert H. Kemp, Jr., Dale J. Lambert, Daniel B. Seale
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Publication number: 20120027132Abstract: A Gaussian Frequency Shift Key (GFSK) receiver includes a receiver front end to receive a GFSK-modulated signal and convert the received GFSK-modulated signal to a baseband frequency modulated signal, a channel filter to reduce channel interference which is adjacent to a desired channel of the baseband frequency modulated signal, a demodulator to demodulate the channel filtered baseband modulated signal and to recover a sequence of symbols, a digital filter to reduce inter-symbol interference (ISI) from the sequence of symbols, a slicer to produce symbol decisions based on the filtered sequence of symbols, and a symbol-to-bit mapper to map the symbol decisions to data bits.Type: ApplicationFiled: July 30, 2010Publication date: February 2, 2012Applicant: Sensus USA Inc.Inventor: Robert E. ROUQUETTE
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Publication number: 20110182140Abstract: An underwater seismic system for reducing noise due to ghost reflections or motion through the water from seismic signals. The system includes two motion sensors. One sensor has a first response and is sensitive to platform-motion-induced noise as well as to acoustic waves. The other sensor has a different construction that isolates it from the acoustic waves so that its response is mainly to motion noise. The outputs of the two sensor responses are combined to remove the effects of motion noise. When further combined with a hydrophone signal, noise due to ghost reflections is reduced.Type: ApplicationFiled: January 21, 2011Publication date: July 28, 2011Inventors: Dale J. Lambert, André W. Olivier, Robert E. Rouquette
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Patent number: 7881160Abstract: An arrangement for conducting a seismic survey and methods for operating a vibrator array in a seismic survey. A signal source coupled to an array of vibrators drives the vibrators with a set of signals to generate seismic signals into a survey area. Each of the signals of the set has an autocorrelation function and a cross correlation function with the other signals of the set that decays faster with time than reflections of the seismic signals from the survey area. One such set of signals includes a linear FM sweep phase-modulated by a maximal-length sequence code shifted a different number of chips for each signal.Type: GrantFiled: April 4, 2008Date of Patent: February 1, 2011Assignee: ION Geophysical CorporationInventor: Robert E. Rouquette
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Publication number: 20100245119Abstract: A two-tier communication system for a seismic streamer. The communication system operates over an unshielded twisted-pair communication line extending the length of the streamer. Repeater units having a repeater function and a device controller function divide the twisted pair into line segments. Coils on each segment couple signals inductively to collocated external devices in a low-speed 2400 baud FSK data link between the devices and an associated device controller. A Gaussian 8-level FSK high-speed 60 kbit/s data link is established along all the segments with the repeaters re-transmitting boosted signals along the entire length of the communication line. The coils are transparent at the high-speed data rate. Time division multiple access (TDMA) or frequency division multiple access (FDMA) is used to accommodate the two links on the single twisted pair.Type: ApplicationFiled: March 25, 2009Publication date: September 30, 2010Applicant: ION GEOPHYSICAL CORPORATIONInventors: Robert E. Rouquette, Robert H. Kemp, JR., Dale J. Lambert, Clem B. Guillot, III, Daniel B. Seale
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Patent number: 7705777Abstract: A mobile multifrequency transmitter includes a self-locator, a frequency selector, and a communication unit. The self-locator is configured to determine a current self location without transmitting an outgoing signal, and to provide the self location to the multifrequency transmitter. The frequency selector is configured to select a usable frequency based on the current self location. The communication unit is configured to transmit on said selected usable frequency. A mobile communication method includes the steps of obtaining a current self location from a self-locator without transmitting an outgoing signal, looking up in a database an allowable frequency band corresponding to the current self location, and transmitting on the allowable frequency band. Thus, the mobile multi-frequency transmitter is capable of handling an automatic frequency switchover without the need for higher level cellular direction.Type: GrantFiled: November 22, 2006Date of Patent: April 27, 2010Assignee: M&FC Holding, LLCInventors: H. Britton Sanderford, Jr., Robert E. Rouquette, Gary A. Naden, Marc L. Read, Gordon J. Boudreaux, Michael R. Brown