Patents by Inventor Jeffrey Townsend

Jeffrey Townsend 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: 5658244
    Abstract: A knee orthosis is provided which includes a suspension strap for securing the orthopedic device to the wearer's leg. The suspension strap includes a band portion that traverses the inner sides of tibial struts and is connected to the medial side tibial strut at point of connection that is lower than a point of connection of the band portion to the lateral side tibial strut. This positioning provides enhanced suspension and support by maximizing the contact area between the suspension strap and the wearer's leg, and provides an advantageous antero-posterior directed force, without compressing the peroneal nerve in the wearer's leg. In addition, a pre-formed spacer may be utilized to aid in providing the antero-posterior directed force and enhancing overall support and suspension.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: August 19, 1997
    Inventors: Jeffrey Townsend, Larry Reib
  • Patent number: 5563055
    Abstract: A method for producing transgenic soybean plants is disclosed. The method employs conditions necessary for genotype-independent, Agrobacterium-mediated transformation of soybean explants and utilization of specialized medium to cause root induction.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: October 8, 1996
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jeffrey A. Townsend, Laurie A. Thomas
  • Patent number: 5548833
    Abstract: A data independent AGC control circuit for telecommunication applications is provided and includes an AGC amplifier, a fixed gain amplifier, a capacitor, and first, second, and third control circuits. The AGC amplifier has a data input, a control input, and a data output. The capacitor is coupled to the control input, and the charge on the capacitor effectively controls the gain of the AGC amplifier. The first control circuit is coupled to the data output of the fixed gain amplifier and to the capacitor and increases the stored charge on the capacitor when the data output exceeds a desired peak voltage level. The second control circuit is similarly coupled between the data output of the fixed gain amplifier and the capacitor, and decreases the stored charge on the capacitor when the data output exceeds a threshold voltage (typically 1/2 the desired peak voltage level).
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: August 20, 1996
    Assignee: TranSwitch Corporation
    Inventor: Jeffrey A. Townsend
  • Patent number: 5537079
    Abstract: An IC amplifier having first and second cascaded stages formed by respective pairs of symmetrical complementary bipolar transistors followed by a unity gain buffer amplifier and provided with overall current feedback. The quiescent collector currents of the second amplifier stage are controlled by respective transconductance generators with respective complementary bipolar transistors connected in parallel relationship to the transistors of the second stage. The collector currents of the transconductance generators are fixed at the levels of respective reference current generators.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: July 16, 1996
    Assignee: Analog Devices, Inc.
    Inventors: Royal A. Gosser, Jeffrey A. Townsend
  • Patent number: 5323423
    Abstract: Pulse width controlled adaptive equalizers are provided for telecommunication signals which are routed over coaxial cables. The adaptive equalizers operate on the premise that a coaxial cable degrades a telecommunications signal by widening the pulse of the signal and decreasing the amplitude. The longer the cable is, the wider the pulse gets. Thus, by detecting the width of the pulse against a desired width, and feeding back the difference to a variable filter which can correct the pulse width, a pulse width controlled adaptive equalizer can be provided.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: June 21, 1994
    Assignee: TranSwitch Corporation
    Inventors: Jeffrey A. Townsend, Joseph R. Yudichak