Patents by Inventor Dennis J. Vandenberg

Dennis J. Vandenberg 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).

  • Method and apparatus for synchronous loading and out-of-phase unloading of data registers
    Patent number: 7188268
    Abstract: An output of a first data register is coupled to an input of a second data register. The same periodic clock signal clocks both data registers. A controller monitors the clock signal, a first load signal and a read signal. The controller generates a guard band signal using the clock signal and the first load signal. The controller also generates a second guard band signal from the read signal and the clock signal. A second load signal, that is used to load the second data register, is created by performing a logical AND operation on the two guard band signals.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: March 6, 2007
    Assignee: ADC DSL Systems, Inc.
    Inventors: Dennis J. Vandenberg, Douglas G. Gilliland
  • Circuit cards having a single ground plane with logic devices connected thereto
    Patent number: 6819571
    Abstract: A circuit card that includes a single ground plane connectable to a chassis-ground and a logic device having a ground pin connected to the single ground plane. The connection between the ground pin and the single ground plane provides a direct path between the logic device and the chassis-ground. A power supply is connected to an input pin of the logic device for providing a logic voltage to the logic device. The power supply is connectable to a battery.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: November 16, 2004
    Assignee: ADC DSL Systems, INc.
    Inventors: Donald J. Glaser, Douglas G. Gilliland, Dennis J. Vandenberg
  • Method and apparatus for synchronous loading and out-of-phase unloading of data registers
    Publication number: 20040088596
    Abstract: An output of a first data register is coupled to an input of a second data register. The same periodic clock signal clocks both data registers. A controller monitors the clock signal, a first load signal and a read signal. The controller generates a guard band signal using the clock signal and the first load signal. The controller also generates a second guard band signal from the read signal and the clock signal. A second load signal, that is used to load the second data register, is created by performing a logical AND operation on the two guard band signals.
    Type: Application
    Filed: October 30, 2003
    Publication date: May 6, 2004
    Applicant: ADC DSL Systems, Inc.
    Inventors: Dennis J. Vandenberg, Douglas G. Gilliland
  • Circuit cards having a single ground plane with logic devices connected thereto
    Publication number: 20030198035
    Abstract: A circuit card that includes a single ground plane connectable to a chassis-ground and a logic device having a ground pin connected to the single ground plane. The connection between the ground pin and the single ground plane provides a direct path between the logic device and the chassis-ground. A power supply is connected to an input pin of the logic device for providing a logic voltage to the logic device. The power supply is connectable to a battery.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 23, 2003
    Applicant: ADC DSL Systems, Inc.
    Inventors: Donald J. Glaser, Douglas G. Gilliland, Dennis J. Vandenberg