Patents by Inventor Michael Stevenson

Michael Stevenson 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).

  • Publication number: 20190369657
    Abstract: The subject technology provides for removing a source of delay in a phase-locked loop (PLL) by causing the output rising edge to occur at the same time as the input rising edge. The subject technology replicates the amount of delay experienced along an input reference signal path to the PLL as close as possible using a same circuit configuration and bias circuits as in the input reference signal path. For example, a timing alignment circuit containing a replica circuit adds compensation delay to a negative feedback loop signal to match the feedback loop delay with the reference path delay. The delay of the reference signal path is estimated and added into the replica circuit. The delay characteristics of these two paths negate one another such that the phases of the input reference signal and the feedback loop signal become phase-locked at the input to the PLL.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 5, 2019
    Inventors: Michael Dean WOMAC, Jan-Michael STEVENSON, Richard William EZELL
  • Patent number: 10496127
    Abstract: The subject technology provides for removing a source of delay in a phase-locked loop (PLL) by causing the output rising edge to occur at the same time as the input rising edge. The subject technology replicates the amount of delay experienced along an input reference signal path to the PLL as close as possible using a same circuit configuration and bias circuits as in the input reference signal path. For example, a timing alignment circuit containing a replica circuit adds compensation delay to a negative feedback loop signal to match the feedback loop delay with the reference path delay. The delay of the reference signal path is estimated and added into the replica circuit. The delay characteristics of these two paths negate one another such that the phases of the input reference signal and the feedback loop signal become phase-locked at the input to the PLL.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: December 3, 2019
    Assignee: LINEAR TECHNOLOGY HOLDING LLC
    Inventors: Michael Dean Womac, Jan-Michael Stevenson, Richard William Ezell
  • Patent number: 10392140
    Abstract: A fully automated pharmaceutical product packaging machine is capable of selectively depositing one or more different solid pharmaceutical products into an individual cavity for each of a plurality of individual patient product package cavities. The system employs a plurality of solid pharmaceutical product dispensing canisters which are capable of selectively dispensing a pre-designated number of solid pharmaceutical products. The machine fills a template containing temporary storage cavities and the template is automatically positioned over a sheet of clear plastic material containing a plurality of cavities corresponding to the cavities in the template. A barrier between the cavities in the template and the sheet of clear plastic material is moved and the pharmaceuticals in the template cavities drop into the corresponding cavities in the clear plastic sheet of material.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: August 27, 2019
    Assignee: MTS Medication Technologies, Inc.
    Inventors: Todd Siegel, Stuart Bagley, Michael Stevenson
  • Publication number: 20190105967
    Abstract: A pressure relief vent includes an enclosure and at least one blocking element. The enclosure defines an air flow channel through a thickness of the enclosure. The enclosure includes at least one guide member that defines a track oriented transverse to a depth axis through the thickness. The at least one blocking element is held within track and is translatable between a seated position and a displaced position. The at least one blocking element plugs the air flow channel when in the seated position, and the air flow channel is at least partially unobstructed when the at least one blocking element is in the displaced position. The at least one blocking element is configured to be moved from the seated position to the displaced position by positive air pressure on an interior side of the enclosure to permit outbound air flow through the air flow channel.
    Type: Application
    Filed: September 24, 2018
    Publication date: April 11, 2019
    Applicant: Illinois Tool Works Inc.
    Inventors: Laurent Huet, Jordan Michael Stevenson
  • Publication number: 20170251177
    Abstract: A method for inspecting a marine vessel underdeck utilizes a video camera such as a digital video camera with a magnifying or telephoto lens. The method produces a magnified image on a monitor for viewing by an inspector that appears to be no more than about 24 inches (61 cm) away. The method includes the step of filming the underdeck of a distance of about 40-70 feet (12-21 m). The lens provides a focal length of between about 15 feet (4.6 m) and 150 feet (46 m). Thus the method is conducted at a workable focal range of between about 15 feet (4.6 m) and 150 feet (46 m). The lens preferably has a focal length of between 30 feet (9 m) and 75 feet (23m). The method includes the step of scanning the suspect area of the underdeck of a speed of about 1 inch (2.54 cm) per second to three feet (91.4 cm) per second. The preferred method contemplates scanning of the suspect area of a rate of between about 0.5-1 foot (15.2-30.5 cm) per second.
    Type: Application
    Filed: January 18, 2017
    Publication date: August 31, 2017
    Applicant: ULTRASONICS AND MAGNETICS CORPORATION
    Inventor: Michael STEVENSON
  • Patent number: 9698800
    Abstract: A system and a method generate clock signals using an output divider with modulus steps of half-integers (i.e., the output circuit includes a divider which divides by one or more of 2, 2.5, 3, 3.5, 4 . . . ).
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: July 4, 2017
    Assignee: Linear Technology Corporation
    Inventor: Jan-Michael Stevenson
  • Patent number: 9591269
    Abstract: A method for inspecting a marine vessel underdeck utilizes a video camera such as a digital video camera with a magnifying or telephoto lens. The method produces a magnified image on a monitor for viewing by an inspector that appears to be no more than about 24 inches (61 cm) away. The method includes the step of filming the uuderdeck of a distance of about 40-70 feet (12-21 m). The lens provides a focal length of between about 15 feet (4.6 m) and 150 feet (46 m). Thus the method is conducted at a workable focal range of between about 15 feet (4.6 m) and 150 feet (46 m). The lens preferably has a focal length of between 30 feet (9 m) and 75 feet (23 m). The method includes the step of scanning the suspect area of the underdeck of a speed of about 1 inch (2.54 cm) per second to three feet (91.4 cm) per second. The preferred method contemplates scanning of the suspect area of a rate of between about 0.5-1 foot (15.2-30.5 cm) per second.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: March 7, 2017
    Assignee: ULTRASONICS AND MAGNETICS CORPORATION
    Inventor: Michael Stevenson
  • Patent number: 9397668
    Abstract: A clock frequency division circuit receives delay value, synchronization signal, and external clock signal of a given frequency. The clock division circuit includes (a) a decode circuit receiving delay value and providing set of initial count values; (b) one or more counters each receiving input clock signal derived from the external clock signal and providing frequency divided output signal having a frequency a fraction of the given frequency, and each receiving a corresponding one of the initial count values, and wherein, subsequent to detecting a transition in the synchronization signal, each counter provides transition in the frequency divided output signal after a time period represented by corresponding initial count value; and (c) synchronization circuit that is reset by the synchronization signal, the synchronization circuit providing a gating signal enabling output of the frequency divided output signal after expiration of initial count value. The one or more counters may be cascaded.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: July 19, 2016
    Assignee: Linear Technology Corporation
    Inventors: Eric Wright Mumper, Jan-Michael Stevenson
  • Publication number: 20160182056
    Abstract: A clock frequency division circuit receives delay value, synchronization signal, and external clock signal of a given frequency. The clock division circuit includes (a) a decode circuit receiving delay value and providing set of initial count values; (b) one or more counters each receiving input clock signal derived from the external clock signal and providing frequency divided output signal having a frequency a fraction of the given frequency, and each receiving a corresponding one of the initial count values, and wherein, subsequent to detecting a transition in the synchronization signal, each counter provides transition in the frequency divided output signal after a time period represented by corresponding initial count value; and (c) synchronization circuit that is reset by the synchronization signal, the synchronization circuit providing a gating signal enabling output of the frequency divided output signal after expiration of initial count value. The one or more counters may be cascaded.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 23, 2016
    Inventors: Eric Wright Mumper, Jan-Michael Stevenson
  • Publication number: 20160036455
    Abstract: A system and a method generate clock signals using an output divider with modulus steps of half-integers (i.e., the output circuit includes a divider which divides by one or more of 2, 2.5, 3, 3.5, 4 . . . ).
    Type: Application
    Filed: March 17, 2015
    Publication date: February 4, 2016
    Inventor: JAN-MICHAEL STEVENSON
  • Publication number: 20130340391
    Abstract: A fully automated pharmaceutical product packaging machine is capable of selectively depositing one or more different solid pharmaceutical products into an individual cavity for each of a plurality of individual patient product package cavities. The system employs a plurality of solid pharmaceutical product dispensing canisters which are capable of selectively dispensing a pre-designated number of solid pharmaceutical products. The machine fills a template containing temporary storage cavities and the template is automatically positioned over a sheet of clear plastic material containing a plurality of cavities corresponding to the cavities in the template. A barrier between the cavities in the template and the sheet of clear plastic material is moved and the pharmaceuticals in the template cavities drop into the corresponding cavities in the clear plastic sheet of material.
    Type: Application
    Filed: August 20, 2013
    Publication date: December 26, 2013
    Applicant: MTS Medication Technologies, Inc.
    Inventors: Todd Siegel, Stuart Bagley, Michael STEVENSON
  • Patent number: 8610442
    Abstract: A method for detecting capacitor variation in a device comprises operating an oscillator in the device, the oscillator being an Inductive-Capacitive (LC) oscillator and including an inductor of known value and a capacitor under test, comparing an output of the oscillator to a reference output, and evaluating variation for a plurality of capacitors in the device based on the comparing.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: December 17, 2013
    Assignee: CSR Technology Inc.
    Inventors: Jan-Michael Stevenson, Timothy M. Magnusen
  • Patent number: 8586461
    Abstract: Systems and methods which provide a multimode tuner architecture implementing direct frequency conversion are shown. Embodiments provide a highly integrated configuration wherein low noise amplifier, tuner, analog and digital channel filter, and analog demodulator functionality are provided in a single integrated circuit. A LNA of embodiments implements a multi-path configuration with seamless switching to provide desired gain control while meeting noise and linearity design parameters. Embodiments of the invention implement in-phase and quadrature (IQ) equalization and a multimode channelization filter architecture to facilitate the use of direct frequency conversion. Embodiments implement spur avoidance techniques for improving tuner system operation and output using a clock signal generation architecture in which a system clock, sampling clock frequencies, local oscillator (LO) reference clock frequencies, and/or the like are dynamically movable.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: November 19, 2013
    Assignee: CSR Technology Inc.
    Inventor: Jan-Michael Stevenson
  • Patent number: 8441531
    Abstract: A method for inspecting a marine vessel underdeck utilizes a video camera such as a digital video camera with a magnifying or telephoto lens. The method produces a magnified image on a monitor for viewing by an inspector that appears to be no more than about 24 inches (61 cm) away. The method includes the step of filming the underdeck of a distance of about 40-70 feet (12-21 m). The lens provides a focal length of between about 15 feet (4.6 m) and 150 feet (46 m). Thus the method is conducted at a workable focal range of between about 15 feet (4.6 m) and 150 feet (46 m). The lens preferably has a focal length of between 30 feet (9 m) and 75 feet (23 m). The method includes the step of scanning the suspect area of the underdeck of a speed of about 1 inch (2.54 cm) per second to three feet (91.4 cm) per second. The preferred method contemplates scanning of the suspect area of a rate of between about 0.5-1 foot (15.2-30.5 cm) per second.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: May 14, 2013
    Assignee: Ultrasonics and Magnetics Corporation
    Inventor: Michael Stevenson
  • Patent number: 8421547
    Abstract: When dynamically varying a number of active paths in a system, a desired return loss is maintained. Certain embodiments enable dynamic varying of the impedance of parallel signal paths in a system responsive to the number of active ones of the parallel paths dynamically changing, in order to maintain a relatively constant impedance match between a source and the combination of parallel paths, thereby retaining a desired return loss.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: April 16, 2013
    Assignee: CSR Technology Inc.
    Inventors: Michael Womac, Jan-Michael Stevenson
  • Patent number: 8351887
    Abstract: Systems and methods which provide a multimode tuner architecture implementing direct frequency conversion are shown. Embodiments provide a highly integrated configuration wherein low noise amplifier, tuner, analog and digital channel filter, and analog demodulator functionality are provided in a single integrated circuit. A LNA of embodiments implements a multi-path configuration with seamless switching to provide desired gain control while meeting noise and linearity design parameters. Embodiments of the invention implement in-phase and quadrature (IQ) equalization and a multimode channelization filter architecture to facilitate the use of direct frequency conversion. Embodiments implement spur avoidance techniques for improving tuner system operation and output using a clock signal generation architecture in which a system clock, sampling clock frequencies, local oscillator (LO) reference clock frequencies, and/or the like are dynamically movable.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: January 8, 2013
    Assignee: CSR Technology, Inc.
    Inventor: Jan-Michael Stevenson
  • Patent number: 8279101
    Abstract: High conversion rates are achieved in an analog to digital converter by tailoring the substrate type to specific operational elements of the converter. Embodiments place sample and hold processing circuitry on a substrate type having properties that allow for faster processing at high sampling/clock frequencies. Other operational elements of the converter are constructed on at least one other substrate type in keeping with the remainder of the circuitry for which the converter is being implemented. The sample and hold substrate may be implemented on any material which is capable of faster processing, such as silicon germanium, gallium arsenide, silicon bipolar, BiCMOS, and the like. Other portions may be implemented on a more CMOS substrate. Such systems and methods are able to implement analog-to digital conversion for broadband signals at high speeds without the need for extensive timing compensation, while also avoiding problems due to noise from further digital processing circuitry.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: October 2, 2012
    Assignee: CSR Technology Inc.
    Inventor: Jan-Michael Stevenson
  • Publication number: 20110285476
    Abstract: When dynamically varying a number of active paths in a system, a desired return loss is maintained. Certain embodiments enable dynamic varying of the impedance of parallel signal paths in a system responsive to the number of active ones of the parallel paths dynamically changing, in order to maintain a relatively constant impedance match between a source and the combination of parallel paths, thereby retaining a desired return loss.
    Type: Application
    Filed: May 20, 2010
    Publication date: November 24, 2011
    Applicant: Microtune (Texas), L.P.
    Inventors: Michael Womac, Jan-Michael Stevenson
  • Patent number: 7978011
    Abstract: Systems and methods which implement degeneration circuitry in a single-ended amplifier circuit to mitigate distortion associated with one or more amplifier components are disclosed. A degeneration circuit of embodiments adds an impedance to cancel the second-order distortion of an amplifier transistor of a single-ended amplifier circuit. A bias circuit may be provided to minimize bias offset between an amplifier transistor and a corresponding degeneration transistor.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: July 12, 2011
    Assignee: Zoran Corporation
    Inventor: Jan-Michael Stevenson
  • Publication number: 20110134334
    Abstract: Systems and methods which provide a multimode tuner architecture implementing direct frequency conversion are shown. Embodiments provide a highly integrated configuration wherein low noise amplifier, tuner, analog and digital channel filter, and analog demodulator functionality are provided in a single integrated circuit. A LNA of embodiments implements a multi-path configuration with seamless switching to provide desired gain control while meeting noise and linearity design parameters. Embodiments of the invention implement in-phase and quadrature (IQ) equalization and a multimode channelization filter architecture to facilitate the use of direct frequency conversion. Embodiments implement spur avoidance techniques for improving tuner system operation and output using a clock signal generation architecture in which a system clock, sampling clock frequencies, local oscillator (LO) reference clock frequencies, and/or the like are dynamically movable.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 9, 2011
    Applicant: Microtune, Inc.
    Inventor: Jan-Michael Stevenson