Patents by Inventor David A. Pepper

David A. Pepper 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: 11974003
    Abstract: Disclosed herein are remote controls with automated selection control. A remote control includes a microcontroller with a provisioned infrared remote library, which are programmed with control codes for a content device, a switch, an infrared light emitter, an indicator device, and a delay knob are connected to the microcontroller. The switch is associated with a selection function on the content device and with control codes. The microcontroller and the library, upon selection of a switch position at the switch, control the infrared light emitter to emit repetitive infrared control codes at the content device at a repetition rate responsive to a reaction time for switching the selection function at the content device, the repetitive infrared control codes automatically incrementing or decrementing the selection function at the content device. The delay knob sets the repetition rate. The indicator device indicates emissions from the infrared light emitter.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: April 30, 2024
    Assignee: Charter Communications Operating, LLC
    Inventors: Andrew Pepper, David Countermine
  • Publication number: 20230070672
    Abstract: Disclosed are devices, systems and methods for routing and scheduling based on family column generation (FCG). The described embodiments provide a dual stabilization method that accelerates column generation (CG), thereby decreasing the number of iterations of CG needed to solve the problem. An example method includes receiving information associated with each of the plurality of facilities, receiving a plurality of demands associated with each of the plurality of customers, generating, based on the information and the plurality of demands, a facility location problem, splitting the facility location problem into a master problem and a subproblem, and iteratively solving, using a FCG method, the master problem and the subproblem to generate the solution comprising assignments between the plurality of customers and the subset of the plurality of facilities that minimize the total cost.
    Type: Application
    Filed: March 28, 2022
    Publication date: March 9, 2023
    Inventors: Julian Yarkony, David Pepper, Amelia Regan
  • Publication number: 20230075128
    Abstract: Disclosed are devices, systems, and methods for routing and scheduling using column generation (CG)-based techniques. The described embodiments include dual optimal inequalities that incorporate detours (referred to as detour-DOI), graph generation (GG), principled graph management (PGM), and column generation with local area (LA) route relaxations. These CG-based techniques can be applied to a variety of logistical optimization problems that include, but are not limited to, the facility location problem, the capacitated vehicle routing problem (CVRP), the CVRP with time windows, multi-robot routing (both with and without time windows), the bus driver scheduling problem, the supply chain scheduling problem, the shift/workforce scheduling problem, and the grocery picking for micro-fulfillment problem.
    Type: Application
    Filed: August 19, 2022
    Publication date: March 9, 2023
    Inventors: Julian Yarkony, David Pepper, Amelia Regan, Udayan Mandal
  • Publication number: 20060239696
    Abstract: A conformal retro-modulator optical apparatus. The apparatus includes an array of multiple quantum well devices disposed in a thin array. A plastic support element is bonded to the thin array, the plastic support element having a thickness greater that of the thin array. The plastic support element is preferably plastic at elevated temperatures above room temperature, thereby allowing the plastic support element and the thin array of multiple well device disposed therein to conform to a predetermined shape, yet being rigid at room temperature.
    Type: Application
    Filed: June 15, 2005
    Publication date: October 26, 2006
    Inventors: Keyvan Sayyah, David Pepper, Peter Brewer, Anson Au
  • Publication number: 20050236686
    Abstract: A photo-EMF detector including a shield to prevent a portion of the detector from illumination. The shield prevents the generation of unwanted noise-currents, thus increasing the performance of the photo-EMF detector.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 27, 2005
    Inventors: Gilmore Dunning, Marko Sokolich, Deborah Vogel, David Pepper
  • Publication number: 20050210982
    Abstract: A remote mass is excited with one or more beams, and the surface vibrations of the excited mass are detected with one or more laser vibrometers. Each vibrometer generates a signal indicative of the surface vibrations which is stored, reversed in time, and applied to modulate an exciter beam that is then impinged onto the mass.
    Type: Application
    Filed: March 24, 2004
    Publication date: September 29, 2005
    Inventors: David Pepper, Gilmore Dunning, David Sumida
  • Publication number: 20050210985
    Abstract: A remote mass is excited with one or more beams, and the surface vibrations of the excited mass are detected with one or more laser vibrometers. Each vibrometer generates a signal indicative of the surface vibrations which is stored, reversed in time, and applied to modulate an exciter beam that is then impinged onto the mass.
    Type: Application
    Filed: October 14, 2004
    Publication date: September 29, 2005
    Inventors: David Pepper, Gilmore Dunning, David Sumida
  • Publication number: 20050190373
    Abstract: A system and a method for remotely sensing global motion of an ensemble of dynamically moving scattering sites. The system comprising a scattering medium under inspection, an optical transceiver and a detector in a double-pass geometry.
    Type: Application
    Filed: February 26, 2004
    Publication date: September 1, 2005
    Inventors: David Pepper, Monica Minden, Gilmore Dunning
  • Publication number: 20050175057
    Abstract: A system and a method for providing more gain while minimizing the potential for parasitic oscillation and amplified spontaneous emissions in an optical amplifier or laser system, utilizing a partitioned monolithic gain element.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 11, 2005
    Inventors: David Sumida, David Pepper
  • Publication number: 20050175056
    Abstract: A system and a method for providing more gain while minimizing the potential for parasitic oscillation and amplified spontaneous emissions in an optical amplifier or laser system, utilizing a partitioned monolithic gain element.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 11, 2005
    Inventors: David Pepper, David Sumida
  • Publication number: 20050162658
    Abstract: A method and apparatus for detecting spectral properties of a sample are disclosed. Electromagnetic radiation in the Terahertz range emitted from a first laser source is modulated and combined with electromagnetic radiation emitted from a second laser source. The frequency spectrum of the combined signal comprises sidebands which can be tuned to resonate with the frequency spectrum of the sample. Tuning of the sidebands is obtained by tuning the first laser source, the second laser source, or the modulation frequency.
    Type: Application
    Filed: January 23, 2004
    Publication date: July 28, 2005
    Inventor: David Pepper
  • Patent number: 5398282
    Abstract: Sidetone in a four-wire telephone station set that is coupled to a two-wire telephone line through a four-to-two wire hybrid circuit is automatically and cancel the phase "to a predetermined value", set by incrementally adjusting a balancing impedance connected to the circuit until an optimum impedance match between the telephone set and line is achieved. Under software control, during idle intervals between dialed digits when a call is initiated, a microcontroller mutes the telephone transmitter and receiver on the telephone side of the circuit and substitutes for these components a tone signal generator to produce a sidetone signal that is applied to a full-wave rectifier and therefrom to a peak voltage detector to generate a sidetone envelope. Individual ones of several impedance balancing networks are then sequentially connected to the telephone side of the circuit and the sidetone envelope for each balancing impedance is digitally encoded and stored.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: March 14, 1995
    Assignee: Northern Telecom Limited
    Inventors: Christopher M. Forrester, David A. Pepper, Guy J. Fortier, Norbert J. Diesing, W. J. Leonard McCready
  • Patent number: 5287404
    Abstract: Changes in a telephone subscriber line voltage are detected in a telephone set by supplying a voltage dependent upon the subscriber line voltage to a potential divider having first, second, and third tapping points, the second tapping point being between the first and third tapping points, and comparing the voltages at the first and third tapping points with a smoothed version of the voltage at the second tapping point to produce pulses at respective terminals when the line voltage is falling or rising. An algorithm is described for responding to the pulses to distinguish changes in hook state of another telephone connected to the same subscriber line from interfering signals. The arrangement facilitates remote release from hold and privacy indication functions for the telephone set.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: February 15, 1994
    Assignee: Northern Telecom Limited
    Inventors: David A. Pepper, Robert J. Miller, Richard J. Malyszka, Andre J. Robert
  • Patent number: D636030
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: April 12, 2011
    Inventors: James P. Sima, Brandon Feliszak, David Pepper