Hatch & Parent, A Law Corporation 110 West C Street Suite 2200, San Diego, CA 92101 (805)8821417 (Office), (805)9654333 (Fax)
Licenses:
California - Active 1993
Education:
University of Washington School of Law Degree - JD - Juris Doctor - Law Graduated - 1993 University of California - San Diego Degree - BA - Bachelor of Arts Graduated - 1980
Eliseo Ranalli - Irvine CA, US Robert Saperstein - La Jolla CA, US
International Classification:
G06T 3/40
US Classification:
382280, 382276
Abstract:
In selected embodiments, improved image restoration is realized using extensions of Wiener filtering combined with multiple image captures acquired after simple, fast reconfigurations of an optical imaging system. These reconfigurations yield unique (distinct) OTF responses for each capture. The optical imaging system may reduce fabrication cost, power consumption, and/or system weight/volume by correcting significant optical aberrations. The system may be configured to perform independent correction of fields within the total field of regard. The system may also be configured to perform independent correction of different spectral bands.
Selected embodiments include an imager providing wide field (WFOV) and foveated images. The imager includes a frontend optic receiving light. Corrective optics reduces distortions, and transmits the light to a splitter. One portion of the light exiting the splitter is focused on a WFOV image detector. A second portion falls on a scanning mirror targeting a selected field position. The light is corrected by an adaptive corrector, which may be configured for field position-dependent correction. The light from the corrector is focused on a foveated image detector. An eye tracker may be employed to select the foveated position corresponding to user gaze direction. Another imager includes a configurable corrector in the imager's optical stop. Free space optical (FSO) communication laser may be combined with a foveated/WFOV imager, with a corrector of the imager correcting the FSO light and a scanning component selecting transmission direction for the FSO light.
Parallel Digital Coherent Detection Using Symmetrical Optical Interleaver And Direct Optical Down Conversion
Ting Wang - West Windsor NJ, US Dayou Qian - Princeton NJ, US Robert Saperstein - LaJolla CA, US
Assignee:
NEC LABORATORIES AMERICA, INC. - Princeton NJ
International Classification:
H04J 14/06 H04L 27/28
US Classification:
398 65, 375260
Abstract:
A method includes modulating lightwaves to provide first and second OFDM signal sidebands at a first polarization direction and first and second OFDM signal sidebands at a second polarization direction, and combining sidebands that are oppositely positioned and joined from the first and second OFDM signal sidebands at each polarization direction to provide a polarization multiplexing OFDM signal.