The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1993
Filed:
Mar. 25, 1992
Applicant:
Inventors:
Robert E Jehle, Silver Spring, MD (US);
David F Hudson, Clarksburg, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
342 21 ; 342 54 ;
Abstract
Radiant energy intermittently emitted from a transmitter is reflected as o pulses from a moving target being interrogated to produce Doppler signals by counting of photons of the echo pulses during time domain intervals between emission from the transmitter. Such counting of photons is limited to the time domain intervals by operational control of a laser pump through which a reference beam is generated at an energy level activating detectors irradiated by such beam to count the photons absorbed therein after capture of the photons by a receiving antenna.