Patents by Inventor Marc C. Jairam

Marc C. Jairam 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: 6970905
    Abstract: A point-to-multipoint communications network connecting multiple subscribers to a single communications line. A plurality of subscriber communications interfaces are connected in parallel to form a local group in which one communications interface serves as a master communications interface and the other communications interfaces serve as slaves. Each communications interface may be capable of serving as the master communications interface according to a demand division multiplexing technique, which assigns master status based on upstream data demands. As a communications interface is switched to master status, the communications interface previously holding master status is switched back to slave status. A plurality of communications interfaces can thus be connected to a single communications port without increasing the upstream transmission bandwidth requirements.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: November 29, 2005
    Assignee: Techbanc Inc.
    Inventors: Ross A. Jeffery, Marc C. Jairam
  • Publication number: 20040066933
    Abstract: A method and device for avoiding signal cancellation caused by a unterminated bridge taps, provides a cable extension, preferably in the form of a pair of coils having an impedance matching the impedance of the telephone wire, respectively coupling the conductors in each bridge tap to the incoming ring and tip conductors. The cable extension increases the effective length of the bridge tap, thereby eliminating destructive interference between the incoming telecommunications signal and the signal reflected from the unterminated end. In the preferred embodiment the cable extension is adaptable to various lengths by a switching network.
    Type: Application
    Filed: October 8, 2002
    Publication date: April 8, 2004
    Inventors: Ross A. Jeffery, Marc C. Jairam
  • Publication number: 20020188668
    Abstract: A point-to-multipoint communications network connecting multiple subscribers to a single communications line at the service provider distribution equipment, for example in a DSL communications system. A plurality of subscriber communications interfaces are connected in parallel to form a local group in which, at any particular point in time, only one communications interface serves as a master communications interface and the other communications interfaces serve as slaves. Each communications interface may be capable of serving as the master communications interface according to a demand division multiplexing technique, which assigns master status based on upstream data demands.
    Type: Application
    Filed: June 7, 2001
    Publication date: December 12, 2002
    Inventors: Ross A. Jeffery, Marc C. Jairam