Patents by Inventor Martin R. Williams

Martin R. Williams 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).

  • Publication number: 20090003768
    Abstract: In a first aspect, the present invention comprises an optical filter comprising a fiber having a core and a cladding and a light-absorbing coating applied onto a portion of the fiber cladding, the coating attenuating loosely bound cladding modes. In another aspect, the invention comprises a fiber amplifier apparatus comprising fibers for delivering pump laser light and for monitoring signal light and at least one photodetector optically coupled to a monitoring fiber, wherein either an optical filter is disposed between a monitoring fiber and a photodetector or at least one of the fibers has a core and a cladding and a light-absorbing coating applied onto a portion of the fiber cladding. A method in accordance with the present invention includes providing an optical amplifier having fibers for delivering pump laser light and for monitoring signal light, and applying a light-absorbing coating onto a portion of one of said fibers.
    Type: Application
    Filed: September 11, 2008
    Publication date: January 1, 2009
    Inventor: Martin R. Williams
  • Patent number: 7430354
    Abstract: In a first aspect, the present invention comprises an optical filter comprising a fiber having a core and a cladding and a light-absorbing coating applied onto a portion of the fiber cladding, the coating attenuating loosely bound cladding modes. In another aspect, the invention comprises a fiber amplifier apparatus comprising fibers for delivering pump laser light and for monitoring signal light and at least one photodetector optically coupled to a monitoring fiber, wherein either an optical filter is disposed between a monitoring fiber and a photodetector or at least one of the fibers has a core and a cladding and a light-absorbing coating applied onto a portion of the fiber cladding. A method in accordance with the present invention includes providing an optical amplifier having fibers for delivering pump laser light and for monitoring signal light, and applying a light-absorbing coating onto a portion of one of said fibers.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: September 30, 2008
    Assignee: Avanex Corporation
    Inventor: Martin R. Williams
  • Patent number: 6896430
    Abstract: A compliant belt attach assembly for use in a printer includes a belt attach and a drive belt having a drive lug. The belt attach defines a lug chamber for containing the drive lug of the drive belt. First and second drive bars are configured to contact the first and second sides of the drive lug to allow drive lug deformation in response to vibration transmitted by the drive belt.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: May 24, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Martin R. Williams
  • Publication number: 20040250482
    Abstract: A multi-story structure having a flooring system and method for installing the flooring system in the multi-story structure. The present invention further includes a method of constructing a multi-story structure using the flooring system of the present invention. The flooring system includes a plurality of interconnected layer, including a layer of steel deck. The flooring system is employed throughout the multi-story structure and contributes to an overall lighter weight in construction materials, as well as to a reduction is costs and labor. It is contemplated by the present invention that this flooring system can be employed in any commercial or residential structure having a variety of dimensions and stories.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 16, 2004
    Inventors: C. Eric Jacobson, Brian A. Mucha, Martin R. Williams
  • Publication number: 20040081502
    Abstract: A compliant belt attach assembly for use in a printer includes a belt attach and a drive belt having a drive lug. The belt attach defines a lug chamber for containing the drive lug of the drive belt. First and second drive bars are configured to contact the first and second sides of the drive lug to allow drive lug deformation in response to vibration transmitted by the drive belt.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 29, 2004
    Inventor: Martin R. Williams
  • Patent number: 6583922
    Abstract: An optical amplifier site comprising: (i) a distributed Raman amplifier providing a first signal gain level; (ii) an optical amplifier located downstream from the distributed Raman amplifier, the optical amplifier being indirectly coupled to the distributed Raman amplifier, the optical amplifier including a first amplification medium, providing a second signal gain level; (iii) at least one optical signal loss element located between the distributed Raman amplifier and the optical amplifier and, contributing at least 0.5 dB optical loss to the amplifier site; (iv) a second amplification medium located down-stream from the first amplification medium; and (v) at least another one optical signal loss element, this at least another one optical signal loss element being located between said first amplification medium and said second amplification medium.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: June 24, 2003
    Assignee: Corning Incorporated
    Inventors: V Srikant, Martin R Williams
  • Publication number: 20030030891
    Abstract: An optical amplifier site comprising: (i) a distributed Raman amplifier providing a first signal gain level; (ii) an optical amplifier located downstream from the distributed Raman amplifier, the optical amplifier being indirectly coupled to the distributed Raman amplifier, the optical amplifier including a first amplification medium, providing a second signal gain level; (iii) at least one optical signal loss element located between the distributed Raman amplifier and the optical amplifier and, contributing at least 0.5 dB optical loss to the amplifier site; (iv) a second amplification medium located down-stream from the first amplification medium; and (v) at least another one optical signal loss element, this at least another one optical signal loss element being located between said first amplification medium and said second amplification medium.
    Type: Application
    Filed: June 28, 2002
    Publication date: February 13, 2003
    Inventors: V. Srikant, Martin R. Williams