Patents by Inventor Robert E. Knapp

Robert E. Knapp 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: 12208031
    Abstract: Examples relate to fluid collection assemblies, systems, and methods for collecting fluid from a wearer of the fluid collection assembly. The fluid collection assemblies include a fluid collection device attachable to an adapter. The fluid collection device includes porous material disposed within a fluid impermeable barrier. The adapter includes an interfacing body having at least one orifice and at least one attachment feature for attaching the adapter to the fluid collection device such that the porous material is fluidly connected to the at least one orifice. A fluid collection system includes a fluid collection device operably coupled to a fluid storage container and vacuum source via one or more sections of conduit.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: January 28, 2025
    Assignee: PureWick Corporation
    Inventors: Tracey E. Knapp, Robert Hine
  • Publication number: 20150221755
    Abstract: Various embodiments provide an electrostatic discharge (ESD) protection device. The ESD protection device may include a subcollector, collector, base, and emitter formed in layers on top of one another. The emitter may include a different semiconductor than a semiconductor included in the base to form a heterojunction. The ESD protection device may include a collector contact disposed on the subcollector and an emitter contact disposed on the emitter. The ESD protection device may be a two-terminal device, with no conductive base contact coupled with the base.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 6, 2015
    Applicant: TriQuint Semiconductor, Inc.
    Inventors: Timothy S. Henderson, Robert E. Knapp
  • Patent number: 9099518
    Abstract: Various embodiments provide an electrostatic discharge (ESD) protection device. The ESD protection device may include a subcollector, collector, base, and emitter formed in layers on top of one another. The emitter may include a different semiconductor than a semiconductor included in the base to form a heterojunction. The ESD protection device may include a collector contact disposed on the subcollector and an emitter contact disposed on the emitter. The ESD protection device may be a two-terminal device, with no conductive base contact coupled with the base.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: August 4, 2015
    Assignee: TriQuint Semiconductor, Inc.
    Inventors: Timothy S. Henderson, Robert E. Knapp
  • Patent number: 6930555
    Abstract: A sense transistor is placed in a current path between a reference voltage source and ground. The base terminal of the sense transistor is coupled to the base terminal of an amplifying transistor. Thus, current in the sense transistor corresponds to signal power output by the amplifying transistor. The sense current causes a sense voltage at the collector terminal of the sense transistor. This sense voltage is applied to one input of an error amplifier. The other error amplifier input receives a power control voltage. The error amplifier output is routed back to the base terminal of the amplifying transistor in a negative feedback loop, thereby keeping the power of the signal output by the amplifying transistor at a constant level. In some embodiments the error amplifier output is made independent of changes in the reference voltage. Multiple pairs of corresponding amplifying and sense transistors can be used.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: August 16, 2005
    Assignee: TriQuint Semiconductor, Inc.
    Inventors: Stephen P. Bachhuber, Thomas R. Apel, Robert E. Knapp
  • Patent number: 6853250
    Abstract: A sense transistor is placed in a current path between a reference voltage source and ground. The base terminal of the sense transistor is coupled to the base terminal of an amplifying transistor. Thus, current in the sense transistor corresponds to signal power output by the amplifying transistor. The sense current causes a sense voltage at the collector terminal of the sense transistor. This sense voltage is applied to one input of an error amplifier. The other error amplifier input receives a power control voltage. The error amplifier output is routed back to the base terminal of the amplifying transistor in a negative feedback loop, thereby keeping the power of the signal output by the amplifying transistor at a constant level. In some embodiments the error amplifier output is made independent of changes in the reference voltage. Multiple pairs of corresponding amplifying and sense transistors can be used.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: February 8, 2005
    Assignee: TriQuint Semiconductor, Inc.
    Inventors: Stephen P. Bachhuber, Thomas R. Apel, Robert E. Knapp
  • Publication number: 20040061557
    Abstract: A sense transistor is placed in a current path between a reference voltage source and ground. The base terminal of the sense transistor is coupled to the base terminal of an amplifying transistor. Thus, current in the sense transistor corresponds to signal power output by the amplifying transistor. The sense current causes a sense voltage at the collector terminal of the sense transistor. This sense voltage is applied to one input of an error amplifier. The other error amplifier input receives a power control voltage. The error amplifier output is routed back to the base terminal of the amplifying transistor in a negative feedback loop, thereby keeping the power of the signal output by the amplifying transistor at a constant level. In some embodiments the error amplifier output is made independent of changes in the reference voltage. Multiple pairs of corresponding amplifying and sense transistors can be used.
    Type: Application
    Filed: September 24, 2003
    Publication date: April 1, 2004
    Applicant: TriQuint Semiconductor, Inc.
    Inventors: Stephen P. Bachhuber, Thomas R. Apel, Robert E. Knapp
  • Patent number: 6653902
    Abstract: A sense transistor is placed in a current path between a reference voltage source and ground. The base terminal of the sense transistor is coupled to the base terminal of an amplifying transistor. Thus, current in the sense transistor corresponds to signal power output by the amplifying transistor. The sense current causes a sense voltage at the collector terminal of the sense transistor. This sense voltage is applied to one input of an error amplifier. The other error amplifier input receives a power control voltage. The error amplifier output is routed back to the base terminal of the amplifying transistor in a negative feedback loop, thereby keeping the power of the signal output by the amplifying transistor at a constant level. In some embodiments the error amplifier output is made independent of changes in the reference voltage. Multiple pairs of corresponding amplifying and sense transistors can be used.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: November 25, 2003
    Assignee: TriQuint Semiconductor, Inc.
    Inventors: Stephen P. Bachhuber, Thomas R. Apel, Robert E. Knapp
  • Patent number: 6529079
    Abstract: An improved amplifier circuit is disclosed. In one embodiment, the amplifier circuit includes an amplifier transistor that has a base terminal connected to receive an input signal. The amplifier circuit also includes a reference voltage source that generates a reference voltage at a reference voltage output node. A local bias circuit provides a bias voltage to the base terminal of the amplifier transistor. The local bias circuit includes a first transistor that has an emitter terminal coupled to the reference voltage output node, a collector terminal coupled to a supply voltage node, and a base terminal connected to the collector terminal. The local bias circuit also includes a second transistor that has a base terminal coupled to the base terminal of the first transistor, a collector terminal coupled to the supply voltage node, and an emitter terminal coupled to the base terminal of the amplifier transistor.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: March 4, 2003
    Assignee: TriQuint Semiconductor, Inc.
    Inventors: Thomas R. Apel, Robert E. Knapp
  • Publication number: 20020084854
    Abstract: An improved amplifier circuit is disclosed. In one embodiment, the amplifier circuit includes an amplifier transistor that has a base terminal connected to receive an input signal. The amplifier circuit also includes a reference voltage source that generates a reference voltage at a reference voltage output node. A local bias circuit provides a bias voltage to the base terminal of the amplifier transistor. The local bias circuit includes a first transistor that has an emitter terminal coupled to the reference voltage output node, a collector terminal coupled to a supply voltage node, and a base terminal connected to the collector terminal. The local bias circuit also includes a second transistor that has a base terminal coupled to the base terminal of the first transistor, a collector terminal coupled to the supply voltage node, and an emitter terminal coupled to the base terminal of the amplifier transistor.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 4, 2002
    Inventors: Thomas R. Apel, Robert E. Knapp
  • Patent number: 4417780
    Abstract: A connector for electrical connection of differently pitched electrical units, for example, flat multiconductor cable and a pin or socket-connector, includes a housing for supporting contact elements having end portions for respective joinder with the electrical units and a bendable central section. The housing includes interior structure, separate from its contact element support structure, for imposing prescribed bending attitudes upon the contact element central portions.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: November 29, 1983
    Assignee: Thomas & Betts Corporation
    Inventor: Robert E. Knapp