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.

Date of Patent:
Oct. 16, 2018

Filed:

Apr. 15, 2015
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Karthik Subburaj, Bangalore, IN;

Karthik Ramasubramanian, Bangalore, IN;

Sriram Murali, Bangalore, IN;

Sreekiran Samala, Plano, TX (US);

Krishnanshu Dandu, Allen, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/292 (2006.01); G01S 7/41 (2006.01);
U.S. Cl.
CPC ...
G01S 7/292 (2013.01); G01S 7/414 (2013.01);
Abstract

A noise-mitigated continuous-wave frequency-modulated radar includes, for example, a transmitter for generating a radar signal, a receiver for receiving a reflected radar signal and comprising a mixer for generating a baseband signal in response to the received radar signal and in response to a local oscillator (LO) signal, and a signal shifter coupled to at least one of the transmitter, LO input of the mixer in the receiver and the baseband signal generated by the mixer. The impact of amplitude noise or phase noise associated with interferers, namely, for example, strong reflections from nearby objects, and electromagnetic coupling from transmit antenna to receive antenna, on the detection of other surrounding objects is reduced by configuring the signal shifter in response to an interferer frequency and phase offset.


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