Patents by Inventor Christopher M. Walker
Christopher M. Walker 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: 20240180608Abstract: A surgical system includes a surgical instrument, a motion sensor, and a computing device. The surgical instrument includes a housing, an end effector assembly distally-spaced from the housing, and a movable component movable relative to the housing. The motion sensor is disposed on or within the housing and configured to sense a vibration signature associated with movement of the movable component relative to the housing. The computing device communicates with the motion sensor, is configured to receive the vibration signature therefrom, and is configured to determine a condition of the movable component based on the vibration signature. A method of monitoring a surgical instrument includes sensing a vibration signature generated from movement of a movable component of a surgical instrument relative to a housing of the surgical instrument, and determining, based on the sensed vibration signature, a condition of the movable component.Type: ApplicationFiled: April 5, 2022Publication date: June 6, 2024Inventors: Duane E. Kerr, Christopher K. Gibbs, Michelle P. Romero, Michael A. Mercer, Brett C. Walker, Lucas M. Lastoczy, Cameron P. Mahoney
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Patent number: 11982575Abstract: In one embodiment, a method includes receiving at a thermal modeling module, data from a Power Sourcing Equipment device (PSE) for cables extending from the PSE to Powered Devices (PDs), the cables configured to transmit power and data from the PSE to the PDs, calculating at the thermal modeling module, thermal characteristics for the cables based on the data, and identifying a thermal rise above a specified threshold at one of the cables. The data comprises real-time electrical data for the cables. An apparatus and logic are also disclosed herein.Type: GrantFiled: October 28, 2022Date of Patent: May 14, 2024Assignee: CISCO TECHNOLOGY, INC.Inventors: Christopher Daniel Bullock, Dylan T. Walker, Chad M. Jones, Joel Richard Goergen
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Publication number: 20240077528Abstract: In one embodiment, a method includes receiving at a thermal modeling module, data from a Power Sourcing Equipment device (PSE) for cables extending from the PSE to Powered Devices (PDs), the cables configured to transmit power and data from the PSE to the PDs, calculating at the thermal modeling module, thermal characteristics for the cables based on the data, and identifying a thermal rise above a specified threshold at one of the cables. The data comprises real-time electrical data for the cables. An apparatus and logic are also disclosed herein.Type: ApplicationFiled: June 2, 2023Publication date: March 7, 2024Inventors: Joel Richard Goergen, Chad M. Jones, Christopher Daniel Bullock, Dylan T. Walker
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Publication number: 20240071593Abstract: Systems and methods are disclosed that provide smart alerts to users, e.g., alerts to users about diabetic states that are only provided when it makes sense to do so, e.g., when the system can predict or estimate that the user is not already cognitively aware of their current condition, e.g., particularly where the current condition is a diabetic state warranting attention. In this way, the alert or alarm is personalized and made particularly effective for that user. Such systems and methods still alert the user when action is necessary, e.g., a bolus or temporary basal rate change, or provide a response to a missed bolus or a need for correction, but do not alert when action is unnecessary, e.g., if the user is already estimated or predicted to be cognitively aware of the diabetic state warranting attention, or if corrective action was already taken.Type: ApplicationFiled: October 24, 2023Publication date: February 29, 2024Inventors: Anna Leigh DAVIS, Scott M. BELLIVEAU, Naresh C. BHAVARAJU, Leif N. BOWMAN, Rita M. CASTILLO, Alexandra Elena CONSTANTIN, Rian W. DRAEGER, Laura J. DUNN, Gary Brian GABLE, Arturo GARCIA, Thomas HALL, Hari HAMPAPURAM, Christopher Robert HANNEMANN, Anna Claire HARLEY-TROCHIMCZYK, Nathaniel David HEINTZMAN, Andrea Jean JACKSON, Lauren Hruby JEPSON, Apurv Ullas KAMATH, Katherine Yerre KOEHLER, Aditya Sagar MANDAPAKA, Samuel Jere MARSH, Gary A. MORRIS, Subrai Girish PAI, Andrew Attila PAL, Nicholas POLYTARIDIS, Philip Thomas PUPA, Eli REIHMAN, Ashley Anne RINDFLEISCH, Sofie Wells SCHUNK, Peter C. SIMPSON, Daniel S. SMITH, Stephen J. VANSLYKE, Matthew T. VOGEL, Tomas C. WALKER, Benjamin Elrod WEST, Atiim Joseph WILEY
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Patent number: 8107344Abstract: A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.Type: GrantFiled: December 16, 2009Date of Patent: January 31, 2012Assignee: Micron Technology, Inc.Inventors: Mark A. Handschy, Michael J. O'Callaghan, Christopher M. Walker
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Publication number: 20100091631Abstract: A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.Type: ApplicationFiled: December 16, 2009Publication date: April 15, 2010Inventors: Mark A. Handschy, Michael J. O'Callaghan, Christopher M. Walker
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Patent number: 7656768Abstract: A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.Type: GrantFiled: January 27, 2005Date of Patent: February 2, 2010Assignee: Micron Technology, Inc.Inventors: Mark A. Handschy, Michael J. O'Callaghan, Christopher M. Walker
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Patent number: 6974133Abstract: A system for a dart-based golf game on an electronic dart game machine has been developed that includes at least one electronic dart board having distinct scoring segments, a CPU electrically connected to the electronic dart board, and a video display electrically connected to the CPU. The CPU displays game mode graphics on the video display, including a golf course hole graphic having a virtual ball and a hole, and a power meter having a moving element. The CPU correlates an instantaneous movement of said moving element at an instant of the dart contact with a movement of the virtual ball on the golf course hole graphic.Type: GrantFiled: March 5, 2004Date of Patent: December 13, 2005Assignee: Arachnid, Inc.Inventors: John R. Martin, Ryan C. Jones, Patrick G. Rice, Christopher M. Walker, Timothy J. Ward
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Patent number: 6805354Abstract: A system for a dart-based golf game on an electronic dart game machine has been developed that includes at least one electronic dart board having distinct scoring segments, a CPU electrically connected to the electronic dart board, and a video display electrically connected to the CPU. The CPU displays game mode graphics on the video display, including a golf course hole graphic having a virtual ball and a hole, and a power meter having a moving element. The CPU correlates an instantaneous movement of said moving element at an instant of the dart contact with a movement of the virtual ball on the golf course hole graphic.Type: GrantFiled: May 14, 2002Date of Patent: October 19, 2004Assignee: Arachnid, Inc.Inventors: John R. Martin, Ryan C. Jones, Patrick G. Rice, Christopher M. Walker, Timothy J. Ward
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Publication number: 20040169334Abstract: A system for a dart-based golf game on an electronic dart game machine has been developed that includes at least one electronic dart board having distinct scoring segments, a CPU electrically connected to the electronic dart board, and a video display electrically connected to the CPU. The CPU displays game mode graphics on the video display, including a golf course hole graphic having a virtual ball and a hole, and a power meter having a moving element. The CPU correlates an instantaneous movement of said moving element at an instant of the dart contact with a movement of the virtual ball on the golf course hole graphic.Type: ApplicationFiled: March 5, 2004Publication date: September 2, 2004Inventors: John R. Martin, Ryan C. Jones, Patrick G. Rice, Christopher M. Walker, Timothy J. Ward
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Publication number: 20020171204Abstract: A system for a dart-based golf game on an electronic dart game machine has been developed that includes at least one electronic dart board having distinct scoring segments, a CPU electrically connected to the electronic dart board, and a video display electrically connected to the CPU. The CPU displays game mode graphics on the video display, including a golf course hole graphic having a virtual ball and a hole, and a power meter having a moving element. The CPU correlates an instantaneous movement of said moving element at an instant of the dart contact with a movement of the virtual ball on the golf course hole graphic.Type: ApplicationFiled: May 14, 2002Publication date: November 21, 2002Inventors: John R. Martin, Ryan C. Jones, Patrick G. Rice, Christopher M. Walker, Timothy J. Ward
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Patent number: 5483123Abstract: An anode structure of the present invention provides radially disposed first vanes and radially disposed second vanes interdigitating with the first vanes. The first vanes and the second vanes are each interconnected by a first strap and a second strap, respectively. The first strap and the second strap are disposed coaxially on the same side of the vane structure and are generally rectangular in cross-section, having substantially parallel facing surfaces. Each of the vanes is generally T-shaped, with a relatively wide high capacitive first portion and a relatively narrow high inductive second portion. The first portion is disposed proximate to an axis of the cavity with the second portion extending radially outward therefrom. The anode structure has at least thirty anode vanes.Type: GrantFiled: April 30, 1993Date of Patent: January 9, 1996Assignee: Litton Systems, Inc.Inventors: Christopher M. Walker, Geoffrey Thornber
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Patent number: 5130601Abstract: An uncoated radiative heating filament wire is electrically and thermally isolated from the cathode of a high power magnetron. The filament wire helically surrounds the cathode support rod and is suspended above the support rod surface by ceramic members. A reflective shell envelops the helical filament wire and cathode support rod. The shell reflects radiated heat from the filament wire evenly upon the cathode support rod.Type: GrantFiled: March 14, 1990Date of Patent: July 14, 1992Assignee: Litton Systems, Inc.Inventors: Christopher M. Walker, Geoffrey Thornber, Robert C. English
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Patent number: 5045814Abstract: A high impedance circuit has radially disposed first vanes and radially disposed second vanes interdigitating between the first vanes. The first vanes and the second vanes are each interconnected by a first toroidal strap and a second toroidal strap, respectively. The first strap and the second strap are dipsosed co-axially on opposite sides of the vane structure. The vanes and straps are dimensioned so that the circuit has a single cavity impedance commensurate with a predetermined interaction impedance for the oscillator which is sufficient to sustain oscillation for a preselected injection locking bandwidth of the oscillator.Type: GrantFiled: March 14, 1990Date of Patent: September 3, 1991Assignee: Litton Systems, Inc.Inventors: Robert C. English, Geoffrey Thornber, Christopher M. Walker
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Patent number: 4808462Abstract: A solar cell substrate comprising a glass substrate and a transparent electrically conductive layer formed thereon, said conductive layer having a plurality of polygonal projections, having approximate diameters of from 0.1 to 0.3 .mu.m and height/diameter ratios of at least 0.Type: GrantFiled: May 22, 1987Date of Patent: February 28, 1989Assignee: Glasstech Solar, Inc.Inventors: Susumu Yaba, Christopher M. Walker, Stephen Muhl, Arun Madan
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Patent number: RE34863Abstract: A high impedance circuit has radially disposed first vanes and radially disposed second vanes interdigitating between the first vanes. The first vanes and the second vanes are each interconnected by a first toroidal strap and a second toroidal strap, respectively. The first strap and the second strap are disposed co-axially on opposite sides of the vane structure. The vanes and straps are dimensioned so that the circuit has a single cavity impedance commensurate with a predetermined interaction impedance for the oscillator which is sufficient to sustain oscillation for a preselected injection locking band-width of the oscillator.Type: GrantFiled: June 25, 1993Date of Patent: February 21, 1995Assignee: Litton Systems, Inc.Inventors: Robert C. English, Geoffrey Thornber, Christopher M. Walker