Patents by Inventor Richard Pappas

Richard Pappas 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).

  • Patent number: 11922101
    Abstract: Systems and methods are disclosed for automated generation of integrated circuit designs and associated data. These allow the design of processors and SoCs by a single, non-expert who understands high-level requirements; allow the en masse exploration of the design-space through the generation processors across the design-space via simulation, or emulation; allow the easy integration of IP cores from multiple third parties into an SoC; allow for delivery of a multi-tenant service for producing processors and SoCs that are customized while also being pre-verified and delivered with a complete set of developer tools, documentation and related outputs. Some embodiments, provide direct delivery, or delivery into a cloud hosting environment, of finished integrated circuits embodying the processors and SoCs.
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: March 5, 2024
    Assignee: SiFive, Inc.
    Inventors: Yunsup Lee, Richard Xia, Derek Pappas, Mark Nugent, Henry Cook, Wesley Waylon Terpstra, Pin Hung Chen
  • Patent number: 7363817
    Abstract: Systems and techniques for detecting the presence of foreign material in food utilizing optical backlighting and/or ultrasonic inspection are presented. In optical backlighting, a substantially monochromatic light source optically backlights a food stream with source light having a wavelength between about 500 and 600 nm. An image of the food stream is captured and the presence of foreign material is determined when a portion of the detected image exceeds a predetermined threshold. The technique is especially suitable for the detection of bone in chicken meat, and the light source can be a planar array of green LEDs. In ultrasonic inspection, a process stream is interrogated with pulses of ultrasound and the presence of foreign material is determined based on the detected off-angle ultrasound scattering response.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: April 29, 2008
    Assignee: Battelle Memorial Institute
    Inventors: Leonard J. Bond, Aaron A. Diaz, Richard A. Pappas, Timothy L. Stewart, Albert Mendoza
  • Patent number: 7246522
    Abstract: A multiparameter acoustic signature inspection device and method are described for non-invasive inspection of containers. Dual acoustic signatures discriminate between various fluids and materials for identification of the same.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: July 24, 2007
    Assignee: Battelle Memorial Institute
    Inventors: Aaron A. Diaz, Todd J. Samuel, Juan D. Valencia, Kevin L. Gervais, Brian J. Tucker, Leslie J. Kirihara, James R. Skorpik, Larry D. Reid, John T. Munley, Richard A. Pappas, Bob W. Wright, Paul D. Panetta, Jason S. Thompson
  • Patent number: 7191698
    Abstract: A method and apparatus are described for determining the doneness of food during a cooking process. Ultrasonic signal are passed through the food during cooking. The change in transmission characteristics of the ultrasonic signal during the cooking process is measured to determine the point at which the food has been cooked to the proper level. In one aspect, a heated fluid cooks the food, and the transmission characteristics along a fluid-only ultrasonic path provides a reference for comparison with the transmission characteristics for a food-fluid ultrasonic path.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: March 20, 2007
    Assignee: Battelle Memorial Institute
    Inventors: Leonard J. Bond, Aaron A. Diaz, Kayte M. Judd, Richard A. Pappas, William C. Cliff, David M. Pfund, Gerald P. Morgen
  • Patent number: 7140239
    Abstract: A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and records the response to the interrogating as a function of settling time, which is then used to determine suspension properties. Attenuation versus settling time for dilute suspensions, such as dilute wood pulp suspension, exhibits a peak at different settling times for suspensions having different properties, and the location of this peak is used as one mechanism for characterizing suspensions. Alternatively or in addition, a plurality of ultrasound receivers are arranged at different angles to a common transmitter to receive scattering responses at a variety of angles during particle settling. Angular differences in scattering as a function of settling time are also used to characterize the suspension.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: November 28, 2006
    Assignee: Battelle Memorial Institute
    Inventors: Margaret S. Greenwood, Paul D. Panetta, Judith A. Bamberger, Richard A. Pappas
  • Patent number: 7114375
    Abstract: A fermention process is monitored by detecting ultrasound backscattered from the cells as a function of time. A transducer 46 is placed in a fermentor 30 and transmits ultrasound towards a reflecting surface 50. The transducer receives that portion of the ultrasound which reflects from the reflecting surface 50, as well as that portion of the ultrasound which backscatters from cells 34 between the transducer 46 and the reflecting surface 50. Signals from the transducer are conditioned and subsequently processed to provide output to a controller regarding the status of the fermentation process in real time. The backscattering measurements can be used to determine a growth phase transition, such as the transition between the logarithmic growth phase of the cells and their stationary phase.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: October 3, 2006
    Assignee: Battelle Memorial Institute
    Inventors: Paul D. Panetta, Richard A. Pappas, Brian J. Tucker
  • Patent number: 6992771
    Abstract: Systems and techniques for detecting the presence of foreign material in food utilizing optical backlighting and/or ultrasonic inspection are presented. In optical backlighting, a substantially monochromatic light source optically backlights a food stream with source light having a wavelength between about 500 and 600 nm. An image of the food stream is captured and the presence of foreign material is determined when a portion of the detected image exceeds a predetermined threshold. The technique is especially suitable for the detection of bone in chicken meat, and the light source can be a planar array of green LEDs. In ultrasonic inspection, a process stream is interrogated with pulses of ultrasound and the presence of foreign material is determined based on the detected off-angle ultrasound scattering response.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: January 31, 2006
    Assignee: Battelle Memorial Institute
    Inventors: Leonard J. Bond, Aaron A. Diaz, Richard A. Pappas, Timothy Stewart, Albert Mendoza
  • Patent number: 6938488
    Abstract: An ultrasound inspection apparatus particularly adapted to examine containers (sealed or unsealed) containing a liquid or solid bulk material. The apparatus has an overall configuration of a hand held pistol with a front transducer contact surface that is positioned against a front wall of the container. An ultrasound pulse is transmitted from the apparatus to be reflected from a back wall of a container being investigated. The received echo pulse is converted to a digital waveform. The waveform is analyzed relative to temperature, travel distance of the pulse(s), and time of travel to ascertain characteristics of the liquid or other materials and to provide identification of the same.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: September 6, 2005
    Assignee: Battelle Memorial Institute
    Inventors: Aaron A. Diaz, Brion J. Burghard, James R. Skorpik, Richard A. Pappas, O. Dennis Mullen, Todd J. Samuel, Larry D. Reid, Joe C. Harris, Juan D. Valencia, Jonathan T. Smalley, Chester L. Shepard, Theodore T. Taylor
  • Patent number: 6925870
    Abstract: A fluid level monitoring system 20 includes an ultrasonic interrogation device 30 acoustically coupled to a sidewall 25 of container 22 and produces ultrasound that travels through the liquid 24 along a transverse path 32 and an inclined path 34. The liquid level is determined by calculating the times-of-flight for the received return signals, where the return signal along the inclined path 34 reflects from the intersection 27 of the liquid level 28 and a sidewall 23. The device 30 can be a multi-element transducer having a plurality of transducer elements at different angular orientations in a common housing.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: August 9, 2005
    Assignee: Battelle Memorial Institute
    Inventors: Richard A. Pappas, Don S. Daly, Walter C. Weimer, James L. Buelt, Kayte M. Judd, Scott K. Cooley
  • Publication number: 20050150275
    Abstract: A fermention process is monitored by detecting ultrasound backscattered from the cells as a function of time. A transducer 46 is placed in a fermentor 30 and transmits ultrasound towards a reflecting surface 50. The transducer receives that portion of the ultrasound which reflects from the reflecting surface 50, as well as that portion of the ultrasound which backscatters from cells 34 between the transducer 46 and the reflecting surface 50. Signals from the transducer are conditioned and subsequently processed to provide output to a controller regarding the status of the fermentation process in real time. The backscattering measurements can be used to determine a growth phase transition, such as the transition between the logarithmic growth phase of the cells and their stationary phase.
    Type: Application
    Filed: January 13, 2004
    Publication date: July 14, 2005
    Inventors: Paul Panetta, Richard Pappas, Brian Tucker
  • Publication number: 20050072226
    Abstract: A fluid level monitoring system 20 includes an ultrasonic interrogation device 30 acoustically coupled to a sidewall 25 of container 22 and produces ultrasound that travels through the liquid 24 along a transverse path 32 and an inclined path 34. The liquid level is determined by calculating the times-of-flight for the received return signals, where the return signal along the inclined path 34 reflects from the intersection 27 of the liquid level 28 and a sidewall 23. The device 30 can be a multi-element transducer having a plurality of transducer elements at different angular orientations in a common housing.
    Type: Application
    Filed: September 23, 2003
    Publication date: April 7, 2005
    Inventors: Richard Pappas, Don Daly, Walter Weimer, James Buelt, Kayte Judd, Scott Cooley
  • Publication number: 20050068535
    Abstract: Systems and techniques for detecting the presence of foreign material in food utilizing optical backlighting and/or ultrasonic inspection are presented. In optical backlighting, a substantially monochromatic light source optically backlights a food stream with source light having a wavelength between about 500 and 600 nm. An image of the food stream is captured and the presence of foreign material is determined when a portion of the detected image exceeds a predetermined threshold. The technique is especially suitable for the detection of bone in chicken meat, and the light source can be a planar array of green LEDs. In ultrasonic inspection, a process stream is interrogated with pulses of ultrasound and the presence of foreign material is determined based on the detected off-angle ultrasound scattering response.
    Type: Application
    Filed: November 27, 2002
    Publication date: March 31, 2005
    Applicant: Battelle Memorial Institute
    Inventors: Leonard Bond, Aaron Diaz, Richard Pappas, Timothy Stewart, Albert Mendoza
  • Patent number: 6871148
    Abstract: A pair of multi-frequency ultrasound transducer surround a fluid flow and are configured to operate under computer control in both a mono-static and a bi-static mode at each of the multiple frequencies. In the mono-static mode, pulsed wideband Doppler shift measurements provide the velocity profile across the fluid flow which can be combined with measured pressure drops to determine the rheogram—a plot of shear stress versus shear rate. Velocity profile data from each frequency can be combined to form a composite velocity profile. In the bi-static mode, transmission data is collected that improves the accuracy and robustness of the velocity profile and provides supplemental material property information. The system is configured for automated operation for a wide variety of fluid types and can be reconfigured and/or monitored remotely.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: March 22, 2005
    Assignee: Battelle Memorial Institute
    Inventors: Gerald P. Morgen, Richard A. Pappas, David M. Pfund, Walter C. Weimer, David M. Sheen, Brion J. Burghard
  • Publication number: 20040195231
    Abstract: A method and apparatus are described for determining the doneness of food during a cooking process. Ultrasonic signal are passed through the food during cooking. The change in transmission characteristics of the ultrasonic signal during the cooking process is measured to determine the point at which the food has been cooked to the proper level. In one aspect, a heated fluid cooks the food, and the transmission characteristics along a fluid-only ultrasonic path provides a reference for comparison with the transmission characteristics for a food-fluid ultrasonic path.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 7, 2004
    Inventors: Leonard J. Bond, Aaron A. Diaz, Kayte M. Judd, Richard A. Pappas, William C. Cliff, David M. Pfund, Gerald P. Morgen
  • Publication number: 20040182138
    Abstract: A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and records the response to the interrogating as a function of settling time, which is then used to determine suspension properties. Attenuation versus settling time for dilute suspensions, such as dilute wood pulp suspension, exhibits a peak at different settling times for suspensions having different properties, and the location of this peak is used as one mechanism for characterizing suspensions. Alternatively or in addition, a plurality of ultrasound receivers are arranged at different angles to a common transmitter to receive scattering responses at a variety of angles during particle settling. Angular differences in scattering as a function of settling time are also used to characterize the suspension.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 23, 2004
    Applicant: Battelle Memorial Institute
    Inventors: Margaret S. Greenwood, Paul D. Panetta, Judith Ann Baumberger, Richard A. Pappas
  • Patent number: 6786096
    Abstract: A system and technique for detecting the presence of foreign material is presented. An ultrasound transmitter interrogates the bulk material and an array of detectors receives the off angle ultrasound scattering response of the bulk material. The presence of foreign material is determined when the off angle scattering response exceeds a predetermined threshold. The technique is especially suitable for the detection of bone in meat.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: September 7, 2004
    Assignee: Battelle Memorial Institute
    Inventors: Leonard J. Bond, Aaron A. Diaz, Richard A. Pappas, Timothy Stewart
  • Publication number: 20040035208
    Abstract: An ultrasound inspection apparatus particularly adapted to examine containers (sealed or unsealed) containing a liquid or solid bulk material. The apparatus has an overall configuration of a hand held pistol with a front transducer contact surface that is positioned against a front wall of the container. An ultrasound pulse is transmitted from the apparatus to be reflected from a back wall of a container being investigated. The received echo pulse is converted to a digital waveform. The waveform is analyzed relative to temperature, travel distance of the pulse(s), and time of travel to ascertain characteristics of the liquid or other materials and to provide identification of the same.
    Type: Application
    Filed: August 21, 2002
    Publication date: February 26, 2004
    Inventors: Aaron A. Diaz, Brion J. Burghard, James R. Skorpik, Richard A. Pappas, O. Dennis Mullen, Todd J. Samuel, Larry D. Reid, Joe C. Harris, Juan D. Valencia, Jonathan T. Smalley, Chester L. Shepard, Theodore T. Taylor
  • Publication number: 20040006436
    Abstract: A pair of multi-frequency ultrasound transducer surround a fluid flow and are configured to operate under computer control in both a mono-static and a bi-static mode at each of the multiple frequencies. In the mono-static mode, pulsed wideband Doppler shift measurements provide the velocity profile across the fluid flow which can be combined with measured pressure drops to determine the rheogram—a plot of shear stress versus shear rate. Velocity profile data from each frequency can be combined to form a composite velocity profile. In the bi-static mode, transmission data is collected that improves the accuracy and robustness of the velocity profile and provides supplemental material property information. The system is configured for automated operation for a wide variety of fluid types and can be reconfigured and/or monitored remotely.
    Type: Application
    Filed: July 2, 2002
    Publication date: January 8, 2004
    Inventors: Gerald P. Morgen, Richard A. Pappas, David M. Pfund, Walter C. Weimer, David M. Sheen, Brion J. Burghard
  • Publication number: 20030098796
    Abstract: A system and technique for detecting the presence of foreign material is presented. An ultrasound transmitter interrogates the bulk material and an array of detectors receives the off angle ultrasound scattering response of the bulk material. The presence of foreign material is determined when the off angle scattering response exceeds a predetermined threshold. The technique is especially suitable for the detection of bone in meat.
    Type: Application
    Filed: November 28, 2001
    Publication date: May 29, 2003
    Inventors: Leonard J. Bond, Aaron A. Diaz, Richard A. Pappas, Timothy Stewart
  • Publication number: 20030098409
    Abstract: Systems and techniques for detecting the presence of foreign material in food utilizing optical backlighting and/or ultrasonic inspection are presented. In optical backlighting, a substantially monochromatic light source optically backlights a food stream with source light having a wavelength between about 500 and 600 nm. An image of the food stream is captured and the presence of foreign material is determined when a portion of the detected image exceeds a predetermined threshold. The technique is especially suitable for the detection of bone in chicken meat, and the light source can be a planar array of green LEDs. In ultrasonic inspection, a process stream is interrogated with pulses of ultrasound and the presence of foreign material is determined based on the detected off-angle ultrasound scattering response.
    Type: Application
    Filed: August 27, 2002
    Publication date: May 29, 2003
    Inventors: Leonard J. Bond, Aaron A. Diaz, Richard A. Pappas, Timothy Stewart, Albert Mendoza