Patents by Inventor John David Bishop

John David Bishop 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).

  • Channelized wavelength division multiplex equalizer using reflective attenuators
    Patent number: 6636657
    Abstract: A channelized Wavelength Division Multiplex (WDM) equalizer enables the gain of each WDM channel to be individually controlled, enabling power adjustments of each channel over the equalizer's entire dynamic range. The gain equalizer includes a demultiplexer with each of its outputs interfaced to a different microelectromechanical system (MEMS) reflective device which adjusts optical power in response to a received control signal. The equalizer can be implemented to operate in a reflective mode or in a transmission mode.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: October 21, 2003
    Assignee: Lucent Technolgies Inc.
    Inventors: Vladimir Anatolyevich Aksyuk, John David Bishop, Randy Clinton Giles, Rene R. Ruel