Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7196833 | Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery | Zhaoyang Hu, Kohsuke Nishimura, Hsu-Feng Chou, Daniel J. Blumenthal, Ryo Inohara +1 more | 2007-03-27 |
| 7184189 | Apparatus for simultaneous OTDM demultiplexing, electrical clock recovery and optical clock generation, and optical clock recovery | Zhaoyang Hu, Kohsuke Nishimura, Hsu-Feng Chou, Daniel J. Blumenthal, Ryo Inohara +1 more | 2007-02-27 |
| 7146069 | Optical system for selectable delay | Roger Helkey | 2006-12-05 |
| 7142744 | Wavelength power equalization by attenuation in an optical switch | Tony Walter, Dan Blumenthal, Peter Hunt, Roger Helkey, Xuezhe Zheng | 2006-11-28 |
| 7127137 | Optical switch with adjustable optical loss | Shifu Yuan, Roger Helkey, Xuezhe Zheng, James R. Sechrist | 2006-10-24 |
| 7110633 | Method and apparatus to provide alternative paths for optical protection path switch arrays | Roger Helkey, Adrian John Keating | 2006-09-19 |
| 6904195 | Optical switch with adjustable optical loss | Shifu Yuan, Roger Helkey, Xuezhe Zheng, James R. Sechrist | 2005-06-07 |
| 6819824 | Optical switch package | David E. Welsh, James R. Sechrist, Adrian John Keating, Xuezhe Zheng, David Henry Kinghorn +3 more | 2004-11-16 |
| 6819815 | Method and apparatus for indirect adjustment of optical switch reflectors | Charles M. Corbalis, Shifu Yuan, David E. Welsh, Roger Helkey | 2004-11-16 |
| 6788842 | Method and apparatus for internal monitoring and control of reflectors in an optical switch | Robert Kehl Sink, Roger Helkey, Robert Anderson, Noel C. MacDonald | 2004-09-07 |
| 6728433 | Feedback stabilization of a loss optimized switch | Roger Helkey | 2004-04-27 |
| 6697547 | Wavelength power equalization by attenuation in an optical switch | Tony Walter, Dan Blumenthal, Peter Hunt, Roger Helkey, Xuezhe Zheng | 2004-02-24 |
| 6668108 | Optical cross-connect switch with integrated optical signal tap | Roger Helkey, Tony Walter, Kevin S. Yamada, David E. Welsh | 2003-12-23 |
| 6643425 | Optical switch having switch mirror arrays controlled by scanning beams | Chandrasekhar Pusarla, Kevin White, Dan Blumenthal, Roger Helkey, John Chong +1 more | 2003-11-04 |
| 6563106 | Micro-electro-mechanical-system (MEMS) mirror device and methods for fabricating the same | Roger Helkey, Charles M. Corbalis, Robert Kehl Sink, Seung-bok LEE, Noel C. MacDonald | 2003-05-13 |
| 6560384 | Optical switch having mirrors arranged to accommodate freedom of movement | Roger Helkey, Herbert Paul Koenig, Robert Kehl Sink | 2003-05-06 |
| 6552256 | Two-stage three-terminal thermionic/thermoelectric coolers | Ali Shakouri, Christopher J. LaBounty | 2003-04-22 |
| 6465803 | Semiconductor hetero-interface photodetector | Aaron Hawkins | 2002-10-15 |
| 6456751 | Feedback stabilization of a loss optimized switch | Roger Helkey | 2002-09-24 |
| 6403874 | High-efficiency heterostructure thermionic coolers | Ali Shakouri | 2002-06-11 |
| 6396976 | 2D optical switch | Michael J. Little, John J. Lyon, Roger Helkey | 2002-05-28 |
| 6385376 | Fused vertical coupler for switches, filters and other electro-optic devices | Bin Liu, Patrick Abraham, Boo-Gyoun Kim, Ali Shakouri | 2002-05-07 |
| 6323414 | Heterostructure thermionic coolers | Ali Shakouri | 2001-11-27 |
| 6277696 | Surface emitting laser using two wafer bonded mirrors | Kent W. Carey, Long Yang, Dubravko Babic, James J. Dudley | 2001-08-21 |
| 6208007 | Buried layer in a semiconductor formed by bonding | Dubravko Babic | 2001-03-27 |