Patents by Inventor David Hedberg

David Hedberg 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).

  • Dishwasher
    Patent number: 11272825
    Abstract: A dishwasher may include a washing chamber and a wash arm arrangement having a wash arm rotatably arranged in the washing chamber, and a satellite spray device arranged on the wash arm. The dishwasher may include at least one sensor configured to sense a rotational position of the wash arm and a control unit configured to monitor consecutive sensed rotational positions of the wash arm. The control unit may be configured to calculate a rotational speed of the wash arm based on an elapsed time and a rotational distance between two sensed rotational positions, and may be configured to estimate a current rotational position of the wash arm based on an elapsed time since a previously sensed rotational position and the calculated rotational speed. The control unit may adapt the pumping intensity of a pump of the dishwasher based on the estimated current rotational position of the wash arm.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 15, 2022
    Inventors: Magnus Wahlberg, Finn Svensson, David Persson, Camilla Runnquist, Maciej Zienkiewicz, David Hedberg, John Anello
  • DISHWASHER
    Publication number: 20190290095
    Abstract: A dishwasher may include a washing chamber and a wash arm arrangement having a wash arm rotatably arranged in the washing chamber, and a satellite spray device arranged on the wash arm. The dishwasher may include at least one sensor configured to sense a rotational position of the wash arm and a control unit configured to monitor consecutive sensed rotational positions of the wash arm. The control unit may be configured to calculate a rotational speed of the wash arm based on an elapsed time and a rotational distance between two sensed rotational positions, and may be configured to estimate a current rotational position of the wash arm based on an elapsed time since a previously sensed rotational position and the calculated rotational speed. The control unit may adapt the pumping intensity of a pump of the dishwasher based on the estimated current rotational position of the wash arm.
    Type: Application
    Filed: December 15, 2016
    Publication date: September 26, 2019
    Inventors: Magnus WAHLBERG, Finn SVENSSON, David PERSSON, Camilla RUNNQUIST, Maciej ZIENKIEWICZ, David HEDBERG, John ANELLO
  • Systems and methods for decreasing latency in a digital transmission system
    Patent number: 7987410
    Abstract: Disclosed herein are various embodiments of methods, systems, and apparatus for encoding OFDM packets in a digital communication system. In one exemplary method embodiment, LDPC codewords in an IEEE 802.11 wireless transmission are shortened, decreasing the iterations necessary to insure accurate communications. The codewords are shortened by adding known bits in predetermined locations in the last data symbol of a packet.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: July 26, 2011
    Assignee: Xocyst Transfer AG L.L.C.
    Inventors: David Hedberg, Cimarron Mittelsteadt, Wen Yen Weng
  • Systems and Methods for Decreasing Latency in a Digital Transmission System
    Publication number: 20100153815
    Abstract: Disclosed herein are various embodiments of methods, systems, and apparatus for encoding OFDM packets in a digital communication system. In one exemplary method embodiment, LDPC codewords in an IEEE 802.11 wireless transmission are shortened, decreasing the iterations necessary to insure accurate communications. The codewords are shortened by adding known bits in predetermined locations in the last data symbol of a packet.
    Type: Application
    Filed: February 25, 2010
    Publication date: June 17, 2010
    Inventors: David Hedberg, Cimarron Mittelsteadt, Wen Yen Weng
  • Systems and methods for decreasing latency in a digital transmission system
    Patent number: 7698623
    Abstract: Disclosed herein are various embodiments of methods, systems, and apparatus for encoding OFDM packets in a digital communication system. In one exemplary method embodiment, LDPC codewords in an IEEE 802.11 wireless transmission are shortened, decreasing the iterations necessary to insure accurate communications. The codewords are shortened by adding known bits in predetermined locations in the last data symbol of a packet.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: April 13, 2010
    Inventors: David Hedberg, Cimarron Mittelsteadt, Wen Yen Weng
  • Coding systems and methods
    Publication number: 20060218459
    Abstract: Disclosed herein are various embodiments of coding systems and methods. In one method embodiment, among others, a coding method comprises receiving input parameters, and providing a packet comprising variable FEC code block sizes throughout the packet structure based on the input parameters.
    Type: Application
    Filed: May 12, 2006
    Publication date: September 28, 2006
    Inventor: David Hedberg
  • Systems and methods for decreasing latency in a digital transmission system
    Publication number: 20060036923
    Abstract: Disclosed herein are various embodiments of methods, systems, and apparatus for encoding OFDM packets in a digital communication system. In one exemplary method embodiment, LDPC codewords in an IEEE 802.11 wireless transmission are shortened, decreasing the iterations necessary to insure accurate communications. The codewords are shortened by adding known bits in predetermined locations in the last data symbol of a packet.
    Type: Application
    Filed: August 12, 2005
    Publication date: February 16, 2006
    Inventors: David Hedberg, Cimarron Mittelsteadt, Wen Weng