Active search sensor and a method of detection using...

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C250S203100, C356S004010, C356S005020

Reexamination Certificate

active

11064589

ABSTRACT:
It has been found that target optics produce non-specular, augmented optical returns when interrogated by a laser pulse. This non-specular radiation is detected by an active laser search system employing a direct-reading, thresholded focal plane detector that is able to detect non-cooperating targets with optics that employ a detector or optical element at the focal plane of their receiving optics. The pulses returned from such target optics have a width commensurate with the original transmitted pulse width, whereas passive background noise and the spread out active returns from the ground exhibit temporally long returns. By setting the sensor threshold sufficiently high, the system discriminates against noise and clutter while at the same time reducing the number of sweeps required to detect a target within the search area.

REFERENCES:
patent: 4062267 (1977-12-01), Vinches et al.
patent: 4556313 (1985-12-01), Miller, Jr. et al.
patent: 6069565 (2000-05-01), Stern et al.
patent: 6343766 (2002-02-01), Livingston
patent: 6603134 (2003-08-01), Wild et al.
PCT International Search Report dated Sep. 6, 2006 of International Application No. PCT/US05/005991 filed Feb. 24, 2005.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Active search sensor and a method of detection using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Active search sensor and a method of detection using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active search sensor and a method of detection using... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3900678

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.