US 2017/0254898 A1 · METHOD AND APPARATUS FOR READING CODE USING SHORT-RANGE MILLIMETER WAVE (MMWAVE) RADAR

Abstract

A code reading method and a radar system using a short-range millimeter wave (mmWave) radar are provided. The method includes transmitting a mmWave radar signal to a target object from a radar system and receiving a reflection wave signal reflected on the target object, extracting reflection signal strengths for a plurality of line codes constituting the target object from the reflection wave signal, compensating for the reflection signal strengths considering a difference in antenna gain between the plurality of line codes as per an antenna radiation pattern of the radar system, forming a radar image using the compensated reflection signal strengths, and reading a binary code from the radar image.

Claims16

Dependent claims

A method for reading a code using a short-range millimeter wave (mmWave) radar, the method comprising:

transmitting a mmWave radar signal to a target object in a radar system and receiving a reflection wave signal reflected on the target object;
extracting reflection signal strengths for a plurality of line codes constituting the target object from the reflection wave signal;
compensating for the reflection signal strengths based on a difference in antenna gain between the plurality of line codes as per an antenna radiation pattern of the radar system;
forming a radar image using the compensated reflection signal strengths;
and
reading a binary code from the radar image.

3 more elements

A radar system reading a code using a short-range millimeter wave (mmWave) radar, the radar system comprising:

a transceiver configured to:
transmit a mmWave radar signal to a target object, and
receive a reflection wave signal reflected on the target object;
and
a processor configured to:
extract reflection signal strengths for a plurality of line codes constituting the target object from the reflection wave signal,
compensate for the reflection signal strengths based on a difference in antenna gain between the plurality of line codes as per an antenna radiation pattern of the radar system,
form a radar image using the compensated reflection signal strengths, and
read a binary code from the radar image.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/449,498Filed 3 Mar 2017

Priority

KR 10-2016-00254553 Mar 2016

Published

7 Sep 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

G01S 13/89
Radar or analogous systems specially adapted for specific applications: for mapping or imaging
G01S 13/584
Using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting…:…
G01S 13/753
Wherein the responder or reflector radiates a coded signal: using frequency selective elements, e.g. resonator
G01S 13/88
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose…:…

Method and apparatus for reading code using short-range millimeter wave (mmwave) radar

Life of this patent

Method and apparatus for reading code using short-range millimeter wave (mmwave) radar

Life of this patent

Abstract

Claims16