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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.:

US 9448301 B1

PDFFull Text
Date of Patent:
Sep. 20, 2016

Filed:

Dec. 20, 2013

Calibrated radar apparatus and associated methods

Applicants:

Aamir a Abbasi, Mundelein, IL (US);

James C Graves, Jr., Roselle, IL (US);

Debra a Jones, Schaumburg, IL (US);

Michael E Lazar, Elgin, IL (US);

Ramanujapuram a Raghuvir, Oak Brook, IL (US);

Inventors:

Aamir A Abbasi, Mundelein, IL (US);

James C Graves, Jr., Roselle, IL (US);

Debra A Jones, Schaumburg, IL (US);

Michael E Lazar, Elgin, IL (US);

Ramanujapuram A Raghuvir, Oak Brook, IL (US);

Assignee:

DELTA MOBILE SYSTEMS, INC., Elgin, IL (US);

Attorneys:

Patents and Licensing LLC

Daniel W. Juffernbruch

Primary Examiner:

Timothy A Brainard

Int. Cl.
CPC ...
G01S 13/02 (2006.01); G01S 7/35 (2006.01); G01S 13/34 (2006.01); G01S 13/88 (2006.01); G01S 13/93 (2006.01); G01S 7/40 (2006.01); G01S 7/41 (2006.01); G01S 13/56 (2006.01);
U.S. Cl.
CPC ...
G01S 7/354 (2013.01); G01S 7/4008 (2013.01); G01S 7/4021 (2013.01); G01S 13/343 (2013.01); G01S 13/88 (2013.01); G01S 13/931 (2013.01); G01S 7/41 (2013.01); G01S 13/56 (2013.01); G01S 2007/356 (2013.01); G01S 2007/4013 (2013.01);
Abstract

A radar apparatus measures at least one characteristic of at least one object even in a near field. A sweep generator generates a sweep signal to modulate an oscillator to generate a varying frequency signal. A transmitter transmits the varying frequency signal as a radar signal. A receiver receives a reflected radar signal to produce a received signal using the varying frequency signal. A compensation signal memory holds a previously stored compensation signal. A compensation circuit compensates the received signal based on the previously stored compensation signal to produce a compensated received signal. A frequency transformation circuit transforms the compensated received signal to produce a frequency spectrum signal. A peak detector measures the characteristic of the object based on a peak of the frequency spectrum signal. When operating in a calibration mode and the reflected radar signal is quieted, the received signal is written into the compensation signal memory.

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