Patents by Inventor Carlos G. Carvajal

Carlos G. Carvajal 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).

  • Ingress cell processing at a user-network interface
    Patent number: 7385991
    Abstract: A method for processing cells at a user-network interface with automatic identification of virtual circuit identifiers and a testing function is provided. The method includes distinguishing the source of the cell. When the cell is from a first source, the method tests the cell against at least one selected criteria. When at least one test determines the cell is invalid, the cell is marked. When the tests determine that the cell is valid, the method translates a virtual circuit identifier to a default setting and forwards the cell to a queue for further processing.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: June 10, 2008
    Assignee: ADC DSL Systems, Inc.
    Inventors: Carlos G. Carvajal, L. Grant Giddens, Dieter H. Nattkemper, Robert S. Kroninger
  • Ingress cell processing at a user-network interface
    Publication number: 20030218985
    Abstract: A method for processing cells at a user-network interface with automatic identification of virtual circuit identifiers and a testing function is provided. The method includes distinguishing the source of the cell. When the cell is from a first source, the method tests the cell against at least one selected criteria. When at least one test determines the cell is invalid, the cell is marked. When the tests determine that the cell is valid, the method translates a virtual circuit identifier to a default setting and forwards the cell to a queue for further processing.
    Type: Application
    Filed: May 24, 2002
    Publication date: November 27, 2003
    Applicant: ADC DSL Systems, Inc.
    Inventors: Carlos G. Carvajal, L. Grant Giddens, Dieter H. Nattkemper, Robert S. Kroninger
  • Method and system for addressing a home terminal unit using a fiber-to-the-curb system
    Patent number: 5493328
    Abstract: A system for determining the physical location of a home terminal unit senses that a cable carries a communication signal from a home terminal unit to an optical network unit. The system includes the home terminal unit, the optical network unit, and a cable that connects the home terminal unit to the optical network unit. Additionally, energy detection circuitry associates with the cable to detect the presence of a communication signal on the cable and generates a detection signal in response to detecting the energy on the cable. Status circuitry for reading the detection signal connects with the energy detection circuitry and communicates the detection signal from the energy detection circuitry to the telecommunications network.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: February 20, 1996
    Assignee: Alcatel Network Systems, Inc.
    Inventors: Robert S. Kroninger, Carlos G. Carvajal