Patents by Inventor Eugene W. Chase

Eugene W. Chase 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).

  • Rapid temperature cycling for accelerated stress testing
    Patent number: 5318361
    Abstract: An environmental testing chamber (10) and thermal cycling method in which, in addition to stressing the device (20) under test with electrical bias (32), elevated temperature (12), pressure (16), and humidity (18) while the device is being monitored (32), a thermoelectric heat pump (26) quickly cycles the temperature of the device by pumping heat from the heat sink (22) mounting the device to another larger heat sink (24).
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: June 7, 1994
    Assignee: Bell Communications Research, Inc.
    Inventors: Eugene W. Chase, Francis DeRosa, Michael P. Dugan, Burton A. Unger
  • Optical pulse-shaping device and method, and optical communications station and method
    Patent number: 5166818
    Abstract: For use, e.g., in the compensation of frequency dispersion in the course of transmission of an optical signal, a pulse-shaping device is provided with a suitably shaped nonplanar mirror (16). When spatially spread-out frequency components--produced, e.g., by a grating (14)--are reflected from such mirror, a frequency-dependent phase shift is introduced; for example, such phase shift may be a third-order function of frequency. Upon recombination of frequencies, a shaped pulse is obtained. Furthermore, third-order compensation can be used to compress amplified light pulses, e.g. as produced by a semiconductor gain medium (80, 81).
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: November 24, 1992
    Assignee: Bell Communications Research, Inc.
    Inventors: Eugene W. Chase, Peter J. Delfyett, Jr., Jonathan P. Heritage, Robert N. Thurston