Patents by Inventor Mark C. Schmidt

Mark C. Schmidt 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: 12278578
    Abstract: A method of regulating a motor, including monitoring an absolute voltage value across an anode and a cathode of a triode via an analog switching circuit, the triode being configured to facilitate power a motor, activating a gate of the triode via the circuit in response to the absolute voltage value being greater than a predetermined threshold, and deactivating the gate of the triode via a switching circuit in response to the absolute voltage value being less than the predetermined threshold.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: April 15, 2025
    Assignee: Whirlpool Corporation
    Inventor: Mark C. Schmidt
  • Publication number: 20240171105
    Abstract: A method of regulating a motor, including monitoring an absolute voltage value across an anode and a cathode of a triode via an analog switching circuit, the triode being configured to facilitate power a motor, activating a gate of the triode via the circuit in response to the absolute voltage value being greater than a predetermined threshold, and deactivating the gate of the triode via a switching circuit in response to the absolute voltage value being less than the predetermined threshold.
    Type: Application
    Filed: November 23, 2022
    Publication date: May 23, 2024
    Inventor: Mark C. SCHMIDT
  • Patent number: 11394337
    Abstract: A soft start circuit for a mixer is provided that includes an input for receiving an analog voltage representing a raw target speed; a current mirror for causing a speed target to change at a constant rate when the raw target speed represents a change from a current speed; and a comparator for receiving and comparing the raw target speed and an output from the current mirror and restricting the output from exceeding the raw target speed in order to restrict a soft start to only impede the speed target change when the raw target speed is increasing while not impeding the speed target change when the raw target speed is decreasing. The output of the soft start circuit is an analog representation of a soft start modified desired target speed.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: July 19, 2022
    Assignee: Whirlpool Corporation
    Inventors: Wayne W. Conard, Jason P. Kachorek, Mark C. Schmidt
  • Publication number: 20220006419
    Abstract: A soft start circuit for a mixer is provided that includes an input for receiving an analog voltage representing a raw target speed; a current mirror for causing a speed target to change at a constant rate when the raw target speed represents a change from a current speed; and a comparator for receiving and comparing the raw target speed and an output from the current mirror and restricting the output from exceeding the raw target speed in order to restrict a soft start to only impede the speed target change when the raw target speed is increasing while not impeding the speed target change when the raw target speed is decreasing. The output of the soft start circuit is an analog representation of a soft start modified desired target speed.
    Type: Application
    Filed: July 1, 2020
    Publication date: January 6, 2022
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Wayne W. Conard, Jason P. Kachorek, Mark C. Schmidt
  • Publication number: 20130298481
    Abstract: An assembly of blocks for use in yard and garden environments includes a plurality of discrete blocks each having a body portion and a joining portion, the joining portion having a plurality of angled teeth. The teeth of a first one of the plurality of blocks interlock with the teeth of a second one of the plurality of blocks such that the first and second blocks are connected together and arranged perpendicular relative to one another so that the plurality of blocks has an L-shaped configuration.
    Type: Application
    Filed: July 22, 2013
    Publication date: November 14, 2013
    Inventors: Joan M. PEROTTI, Mark C. Schmidt
  • Patent number: 8490359
    Abstract: An assembly of blocks for use in yard and garden environments includes a plurality of discrete blocks each having a body portion and a joining portion, the joining portion having a plurality of angled teeth. The teeth of a first one of the plurality of blocks interlock with the teeth of a second one of the plurality of blocks such that the first and second blocks are connected together and arranged perpendicular relative to one another so that the plurality of blocks has an L-shaped configuration.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 23, 2013
    Inventors: Joan M. Perotti, Mark C. Schmidt
  • Publication number: 20130031848
    Abstract: An assembly of blocks for use in yard and garden environments includes a plurality of discrete blocks each having a body portion and a joining portion, the joining portion having a plurality of angled teeth. The teeth of a first one of the plurality of blocks interlock with the teeth of a second one of the plurality of blocks such that the first and second blocks are connected together and arranged perpendicular relative to one another so that the plurality of blocks has an L-shaped configuration.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 7, 2013
    Inventors: Joan M. Perotti, Mark C. Schmidt
  • Patent number: 7832643
    Abstract: A hand-supportable planar laser illumination and imaging (PLIIM) based code symbol reader includes: a hand-supportable housing having light transmission aperture; a linear image formation and detection module having a linear image detection array; and a planar laser illumination beam (PLIB) producing device having at least one visible laser diode (VLD) for producing a planar light illumination beam (PLIB). The code symbol reader further includes image grabber for grabbing digital linear images formed and detected by the image formation and detection module, an image data buffer for buffering the digital linear images grabbed by the image grabber and constructing a two-dimensional image from a series of buffered linear digital images, and an image processing computer for processing the buffered two-dimensional digital image so as to read code symbols graphically represented in the two-dimensional digital linear image.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: November 16, 2010
    Assignee: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Sr., Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Patent number: 7624924
    Abstract: An ergonomic single-line compact laser bar code scanning system having a compact housing for hand-held disposition at a counter. The scanning system is automatically-activated and includes a bar code symbol reading mechanism contained within a hand-supportable housing having a manually-activatable data transmission switch formed integrally in the housing. During symbol reading operations, the bar code symbol reading mechanism automatically generates a visible laser scanning pattern for repeatedly reading one or more bar code symbols on an object during a bar code symbol reading cycle, and automatically generating a new symbol character data string in response to each bar code symbol read thereby. During system operation, the user visually aligns the visible laser scanning pattern with a particular bar code symbol on an object (e.g., product, bar code menu, etc.) so that the bar code symbol is detected, scanned, and decoded.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: December 1, 2009
    Inventors: Sung Ho Byun, Mark C. Schmidt, Garrett K. Russell, David M. Wilz, Sr., Donald Hudrick, James A. Nahill
  • Patent number: 7584893
    Abstract: A tunnel-type digital imaging system for use within retail shopping environments such as supermarkets. The system includes a tunnel configuration arranged about a conveyor structure for transporting objects therethrough, and an image capturing and processing subsystem embodied within the tunnel configuration, for generating a 3D digital imaging volume above the conveyor structure and within the tunnel configuration, for capturing digital 1D images of objects transported through the 3D digital imaging volume. The image capturing and processing subsystem includes a plurality of illumination and imaging stations. Each station includes a 2D imaging array having optics providing a 3D field of view (FOV) on the 2D imaging array that is projected and extends into the 3D digital imaging volume, and one or more light emitting devices configured together to produce an illumination beam that extends into the 3D FOV of the 2D imaging array.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 8, 2009
    Assignee: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Sr., Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Patent number: 7581681
    Abstract: A tunnel-type digital imaging system for use within retail shopping environments such as supermarkets. The system includes a tunnel configuration arranged about a conveyor structure for transporting objects therethrough, and an image capturing and processing subsystem embodied within the tunnel configuration, for generating a 3D digital imaging volume above the conveyor structure and within the tunnel configuration, for capturing digital 1D images of objects transported through the 3D imaging volume. The image capturing and processing subsystem includes a plurality of coplanar illumination and imaging stations.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 1, 2009
    Assignee: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Sr., Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Patent number: 7527200
    Abstract: A hand-supportable planar laser illumination and imaging (PLIIM) based device having hand-supportable housing with a light transmission aperture. A linear image formation and detection (IFD) module is mounted within the housing, and has a linear array of image detection elements and also image formation optics with a field of view (FOV). When an object is presented within the FOV, the FOV focuses a linear image of the object onto the linear array. At least one planar laser illumination module (PLIM) is mounted on the support platform, with the linear IFD module, and produces a planar laser illumination beam (PLIB) spatially aligned with respect to the FOV and arranged in a coplanar relationship with at least a portion of the FOV. A laser beam despeckling mechanism is integrated in the device, for reducing speckle-pattern noise observed the linear digital images formed and detected at the linear array of image detection elements.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: May 5, 2009
    Assignee: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Sr., Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Patent number: 7431215
    Abstract: An automatically-activated bar code reading system including: a visible laser light source, scanning element and a plurality of stationary mirrors. When arranged in a first configuration, the visible laser light source, scanning element and plurality of stationary mirrors cooperate to produce a visible omni-directional laser scanning pattern with multiple laser scanning lines having substantially uniform spatial and temporal intensity characteristics at a given scanning plane parallel to a scanning window within a working distance of the system.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: October 7, 2008
    Assignee: Metrologic Instruments, Inc.
    Inventors: David M. Wilz, Sr., Garrett Russell, Mark C. Schmidt, Mikhail Veksland, William Martin, Patrick Giordano, Shane Edmonds, Kevin DiPlacido, Shawn Defoney, Stephen Colavito, Donald Hudrick, James Osborn, Thomas Amundsen, Benjamin Hejl
  • Publication number: 20080135621
    Abstract: A hand-supportable planar laser illumination and imaging (PLIIM) based code symbol reader includes: a hand-supportable housing having light transmission aperture; a linear image formation and detection module having a linear image detection array; and a planar laser illumination beam (PLIB) producing device having at least one visible laser diode (VLD) for producing a planar light illumination beam (PLIB). The code symbol reader further includes image grabber for grabbing digital linear images formed and detected by the image formation and detection module, an image data buffer for buffering the digital linear images grabbed by the image grabber and constructing a two-dimensional image from a series of buffered linear digital images, and an image processing computer for processing the buffered two-dimensional digital image so as to read code symbols graphically represented in the two-dimensional digital linear image.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 12, 2008
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Publication number: 20080128506
    Abstract: A hand-supportable planar laser illumination and imaging (PLIIM) based code symbol reader includes: a hand-supportable housing having light transmission aperture; a linear image formation and detection module having a linear image detection array; and a planar laser illumination beam (PLIB) producing device having at least one visible laser diode (VLD) for producing a planar light illumination beam (PLIB). The code symbol reader further includes image grabber for grabbing digital linear images formed and detected by the image formation and detection module, an image data buffer for buffering the digital linear images grabbed by the image grabber and constructing a two-dimensional image from a series of buffered linear digital images, and an image processing computer for processing the buffered two-dimensional digital image so as to read code symbols graphically represented in the two-dimensional digital linear image.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 5, 2008
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffrey Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Publication number: 20080128507
    Abstract: A tunnel-type digital imaging system for use within retail shopping environments such as supermarkets. The system includes a tunnel configuration arranged about a conveyor structure for transporting objects therethrough, and an image capturing and processing subsystem embodied within the tunnel configuration, for generating a 3D digital imaging volume above the conveyor structure and within the tunnel configuration, for capturing digital images of objects transported through the 3D imaging volume. The image capturing and processing subsystem includes a plurality of illumination and imaging stations. Each station includes a 2D imaging array having optics providing a 3D field of view (FOV) on the 2D imaging array that is projected and extends into the 3D imaging volume, and one or more light emitting devices configured together to produce a illumination beam that extends into the 3D FOV of the 2D imaging array.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 5, 2008
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Micheal D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffrey Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Publication number: 20080128508
    Abstract: A tunnel-type digital imaging system for use within retail shopping environments such as supermarkets. The system includes a tunnel configuration arranged about a conveyor structure for transporting objects therethrough, and an image capturing and processing subsystem embodied within the tunnel configuration, for generating a 3D digital imaging volume above the conveyor structure and within the tunnel configuration, for capturing digital images of objects transported through the 3D imaging volume. The image capturing and processing subsystem includes a plurality of coplanar illumination and imaging stations.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 5, 2008
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Patent number: 7303132
    Abstract: An x-ray object scanning-tunnel system for automatically acquiring and linking object identity and attribute information about each object transported therethrough while bearing a bar code symbol and/or graphical indicia on the exterior surface thereof. The system comprises a scanning-tunnel housing through which one or more objects can be transported for capturing and processing digital images of the bar code symbol and/or identifying graphical indicia on the object so as to tread the bar code symbol and/or identifying graphical indicia, and identify the object by producing object identification information. An x-ray scanning subsystem mounted within the scanning-tunnel housing, produces an x-radiation energy beam for scanning the interior and/or contents of each object, and automatically generating x-radiation images of the object's interior and/or contents.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: December 4, 2007
    Assignee: Meterologic Instruments, Inc.
    Inventors: C. Harry Knowles, Mark C. Schmidt, Dale Fisher
  • Patent number: 7097105
    Abstract: A multi-mode laser-based bar code symbol reading device having a hand-supportable housing with a light transmission aperture, wherethrough visible light can exit and enter the hand-supportable housing. A laser scanning engine, disposed within the hand-supportable housing, is controlled to selectively operate in either an omni-directional reading mode or a uni-directional bar code reading mode. In the omni-directional bar code reading mode, the laser scanning engine projects pattern through the light transmission aperture, an omni-directional laser scanning pattern producing multiple laser scanning lines with substantially uniform spatial and temporal intensity characteristics at any given scanning plane parallel to the light transmission aperture within the working distance of the system, and detects and decodes bar code symbols on objects passing through the omni-directional scanning pattern, and produces symbol character data representative of decoded bar code symbols.
    Type: Grant
    Filed: October 11, 2003
    Date of Patent: August 29, 2006
    Assignee: Metrologic Instruments, Inc.
    Inventors: David M. Wilz, Sr., Garrett Russell, Mark C. Schmidt, Mikhail Veksland, William Martin, Patrick Giordano, Shane Edmonds, Kevin DiPlacido, Shawn Defoney, Stephen Colavito, Donald Hudrick, James Osborn, Thomas Amundsen, Benjamin Hejl
  • Patent number: 7070106
    Abstract: An Internet-based remote monitoring, configuration and service (RMCS) system capable of monitoring, configuring and servicing a planar laser illumination and imaging (PLIIM) based network. The network has one or more nodes and performs object identification and attribute acquisition functions. Each node is a PLIIM-based subsystem operably connected to a digital communications network interconnectable to the infrastructure of the Internet. The Internet-based RMCS system comprises a monitoring subsystem for remotely monitoring a set parameters associated with the PLIIM-based network. The set of parameters relate to network, system and/or subsystem characteristics of the PLIIM-based network. The RMCS also includes an analyzing subsystem for remotely analyzing the parameters to diagnose (i) performance failures in the PLIIM-based network, as well as (ii) the operation and performance of the PLIIM-based network.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: July 4, 2006
    Assignee: Metrologic Instruments, Inc.
    Inventors: C. Harry Knowles, Mark C. Schmidt, Xiaoxun Zhu, Shawn Defoney, Edward Skypala, Constantine J. Tsikos, Ka Man Au, Barry E. Schwartz, Allan Wirth, Andrew Jankevics, Timothy A. Good, Sankar Ghosh, Michael D. Schnee, George Kolis, Thomas Amundsen, Charles A. Naylor, Robert Blake, Russell Joseph Dobbs, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Sr., William Svedas, Steven Y. Kim, Dale M. Fischer, Jon Van Tassell