Patents by Inventor Thomas Bullington

Thomas Bullington 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).

  • T1 channel bank control and apparatus
    Patent number: 6144736
    Abstract: A technique for powering telephone lines using an unbalance current source and current sink; and a technique for improving attenuation/frequency distribution and return loss (impedance matching) of transformer-coupled wire-line communications circuits by using secondary series capacitance and an AC current pump signal source; and a generation of ringing voltage as positive voltage pulses with respect to a negative power supply voltage; and a technique for removal of AC power ripple by using an active linear floating filter for the purpose of powering telephone line circuits, and a technique for injection of real time tone samples into T1 transmissions circuits by use of a T1 framer idle code register.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: November 7, 2000
    Assignee: Carrier Access Corporation
    Inventors: Roger L. Koenig, Thomas Bullington, Phillip Clark
  • T1 channel bank control process and apparatus
    Patent number: 5970139
    Abstract: A technique for powering telephone lines using an unbalance current source and current sink; and a technique for improving attenuation/frequency distribution and return loss (impedance matching) of transformer-coupled wire-line communications circuits by using secondary series capacitance and an AC current pump signal source; and a generation of ringing voltage as positive voltage pulses with respect to a negative power supply voltage; and a technique for removal of AC power ripple by using an active linear floating filter for the purpose of powering telephone line circuits, and a technique for injection of real time tone samples into T1 transmissions circuits by use of a T1 framer idle code register.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: October 19, 1999
    Assignee: Carrier Access Corporation
    Inventors: Roger L. Koenig, Thomas Bullington, Phillip Clark
  • T1 channel bank control process and apparatus
    Patent number: 5881148
    Abstract: A technique for powering telephone lines using an unbalanced current source and current sink; and a technique for improving attenuation/frequency distribution and return loss (impedance matching) of transformer-coupled wire-line communications circuits by using secondary series capacitance and an AC current pump signal source; and a generation of ringing voltage as positive voltage pulses with respect to a negative power supply voltage; and a technique for removal of AC power ripple by using an active linear floating filter for the purpose of powering telephone line circuits, and a technique for injection of real time tone samples into T1 transmissions circuits by use of a T1 framer idle code register.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: March 9, 1999
    Assignee: Carrier Access Corporation
    Inventors: Roger L. Koenig, Thomas Bullington, Phillip Clark
  • T1 channel bank control process and apparatus
    Patent number: 5870466
    Abstract: A technique for powering telephone lines using an unbalance current source and current sink; and a technique for improving attenuation/frequency distribution and return loss (impedance matching) of transformer-coupled wire-line communications circuits by using secondary series capacitance and an AC current pump signal source; and a generation of ringing voltage as positive voltage pulses with respect to a negative power supply voltage; and a technique for removal of AC power ripple by using an active linear floating filter for the purpose of powering telephone line circuits, and a technique for injection of real time tone samples into T1 transmissions circuits by use of a T1 framer idle code register.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: February 9, 1999
    Assignee: Carrier Access Corporation
    Inventors: Roger L. Koenig, Thomas Bullington, Phillip Clark
  • T1 channel bank control process and apparatus
    Patent number: 5768368
    Abstract: A technique for powering telephone lines using an unbalance current source and current sink; and a technique for improving attenuation/frequency distribution and return loss (impedance matching) of transformer-coupled wire-line communications circuits by using secondary series capacitance and an AC current pump signal source; and a generation of ringing voltage as positive voltage pulses with respect to a negative power supply voltage; and a technique for removal of AC power ripple by using an active linear floating filter for the purpose of powering telephone line circuits, and a technique for injection of real time tone samples into T1 transmissions circuits by use of a T1 framer idle code register.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: June 16, 1998
    Inventors: Roger L. Koenig, Thomas Bullington, Phillip Clark
  • T1 channel bank control process and apparatus
    Patent number: 5740241
    Abstract: A technique for powering telephone lines using an unbalance current source and current sink; and a technique for improving attenuation/frequency distribution and return loss (impedance matching) of transformer-coupled wire-line communications circuits by using secondary series capacitance and an AC current pump signal source; and a generation of ringing voltage as positive voltage pulses with respect to a negative power supply voltage; and a technique for removal of AC power ripple by using an active linear floating filter for the purpose of powering telephone line circuits, and a technique for injection of real time tone samples into T1 transmissions circuits by use of a T1 framer idle code register.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: April 14, 1998
    Assignee: Carrier Access Corporation
    Inventors: Roger L. Koenig, Thomas Bullington, Phillip Clark