Patents Assigned to VizionWare, Inc.
  • Publication number: 20080250170
    Abstract: Techniques for improving the quality or fidelity of a digital signal transmitted via a two-wire bus interconnect utilizing an open-terminal configuration at one or both end devices of the bus interconnect are disclosed. An intermediate two-wire bus is used to connect two open-terminal-based two-wire busses. A bus adapter device is utilized at each end of the intermediate two-wire bus, whereby the bus adapter device communicates signaling on the corresponding open-terminal-based two-wire bus using open-terminal ports and communicates signaling on the intermediate two-wire bus using push-pull ports. The bus adapter device can utilize control logic to implement a state machine or other function to control the interactions between the different two-wire buses. The bus adapter devices may be implemented as interchangeable integrated circuit devices that can change configuration based on connection, thereby permitting their implementation at either end of a bus transmission system.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 9, 2008
    Applicant: VIZIONWARE, INC.
    Inventor: Stephen J. Sheafor
  • Publication number: 20080250184
    Abstract: Techniques for improving the quality or fidelity of a digital signal transmitted via a two-wire bus interconnect utilizing an open-terminal configuration at one or both end devices of the bus interconnect are disclosed. An intermediate two-wire bus is used to connect two open-terminal-based two-wire busses. A bus adapter device is utilized at each end of the intermediate two-wire bus, whereby the bus adapter device communicates signaling on the corresponding open-terminal-based two-wire bus using open-terminal ports and communicates signaling on the intermediate two-wire bus using push-pull ports. The bus adapter device can utilize control logic to implement a state machine or other function to control the interactions between the different two-wire buses. The bus adapter devices may be implemented as interchangeable integrated circuit devices that can change configuration based on connection, thereby permitting their implementation at either end of a bus transmission system.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 9, 2008
    Applicant: VIZIONWARE, INC.
    Inventors: Stephen J. Sheafor, Kenneth W. Egan, Geoffrey E. Brehmer, Gregory T. Chandler
  • Publication number: 20080247414
    Abstract: Techniques for improving the quality or fidelity of a digital signal transmitted via a two-wire bus interconnect utilizing an open-terminal configuration at one or both end devices of the bus interconnect are disclosed. An intermediate two-wire bus is used to connect two open-terminal-based two-wire busses. A bus adapter device is utilized at each end of the intermediate two-wire bus, whereby the bus adapter device communicates signaling on the corresponding open-terminal-based two-wire bus using open-terminal ports and communicates signaling on the intermediate two-wire bus using push-pull ports. The bus adapter device can utilize control logic to implement a state machine or other function to control the interactions between the different two-wire buses. The bus adapter devices may be implemented as interchangeable integrated circuit devices that can change configuration based on connection, thereby permitting their implementation at either end of a bus transmission system.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 9, 2008
    Applicant: VIZIONWARE, INC.
    Inventors: Stephen J. Sheafor, Kenneth W. Egan, Gregory T. Chandler
  • Publication number: 20080246626
    Abstract: Techniques for improving the quality or fidelity of a digital signal transmitted via a two-wire bus interconnect utilizing an open-terminal configuration at one or both end devices of the bus interconnect are disclosed. An intermediate two-wire bus is used to connect two open-terminal-based two-wire busses. A bus adapter device is utilized at each end of the intermediate two-wire bus, whereby the bus adapter device communicates signaling on the corresponding open-terminal-based two-wire bus using open-terminal ports and communicates signaling on the intermediate two-wire bus using push-pull ports. The bus adapter device can utilize control logic to implement a state machine or other function to control the interactions between the different two-wire buses. The bus adapter devices may be implemented as interchangeable integrated circuit devices that can change configuration based on connection, thereby permitting their implementation at either end of a bus transmission system.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 9, 2008
    Applicant: VIZIONWARE, INC.
    Inventors: Stephen J. Sheafor, Kenneth W. Egan
  • Publication number: 20080250175
    Abstract: Techniques for improving the quality or fidelity of a digital signal transmitted via a two-wire bus interconnect utilizing an open-terminal configuration at one or both end devices of the bus interconnect are disclosed. An intermediate two-wire bus is used to connect two open-terminal-based two-wire busses. A bus adapter device is utilized at each end of the intermediate two-wire bus, whereby the bus adapter device communicates signaling on the corresponding open-terminal-based two-wire bus using open-terminal ports and communicates signaling on the intermediate two-wire bus using push-pull ports. The bus adapter device can utilize control logic to implement a state machine or other function to control the interactions between the different two-wire buses. The bus adapter devices may be implemented as interchangeable integrated circuit devices that can change configuration based on connection, thereby permitting their implementation at either end of a bus transmission system.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 9, 2008
    Applicant: VIZIONWARE, INC.
    Inventors: Stephen J. Sheafor, Kenneth W. Egan, Geoffrey E. Brehmer, Gregory T. Chandler
  • Publication number: 20080198945
    Abstract: A method and system are disclosed for spreading the power associated with digital signals being transmitted to reduce electromagnetic interference (EMI) emissions by receiving, via a first transmission line, a first power spread signal representative a first digital signal modified using a first power spreading digital noise signal, modifying the power spread signal using a second power spreading digital noise signal substantially similar to the first power spreading digital noise signal to generate a second digital signal substantially similar to the first digital signal, modifying the second digital signal using a third power spreading digital noise signal to generate a second power spread signal and providing the second power spread signal for output to a second transmission line.
    Type: Application
    Filed: April 3, 2008
    Publication date: August 21, 2008
    Applicant: VIZIONWARE, INC.
    Inventors: Kenneth W. Egan, Gregory T. Chandler, Jitendra K. Budwal, James J. Remedi, Ted Beck, Stephen J. Sheafor
  • Patent number: 7386028
    Abstract: A method and system is disclosed for spreading the power associated with digital signals being transmitted to reduce electromagnetic interference (EMI) emissions by receiving, via a first transmission line, a first power spread signal representative a first digital signal modified using a first power spreading digital noise signal, modifying the power spread signal using a second power spreading digital noise signal substantially similar to the first power spreading digital noise signal to generate a second digital signal substantially similar to the first digital signal, modifying the second digital signal using a third power spreading digital noise signal to generate a second power spread signal and providing the second power spread signal for output to a second transmission line.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: June 10, 2008
    Assignee: VizionWare, Inc.
    Inventors: Kenneth W. Egan, Gregory T. Chandler, Jitendra K. Budwal, James J. Remedi, Ted Beck, Stephen J. Sheafor
  • Patent number: 7305020
    Abstract: A method and system is disclosed for spreading the power associated with digital signals being transmitted to lower electromagnetic interference (EMI) emissions. After being transmitted across a transmission line, a representation of the original digital signal is recovered and provided to a destination device.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: December 4, 2007
    Assignee: VizionWare, Inc.
    Inventors: Thanh T. Tran, Ce Liu, Kenneth W. Egan