US 11,885,914 B2
LIDAR system and signal processing method thereof
Jae Won Choi, Seoul (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI AUTRON CO., LTD., Seoul (KR)
Filed on Jul. 8, 2020, as Appl. No. 16/923,880.
Claims priority of application No. 10-2019-0089450 (KR), filed on Jul. 24, 2019.
Prior Publication US 2021/0025988 A1, Jan. 28, 2021
Int. Cl. G01S 7/4861 (2020.01); G01S 7/4865 (2020.01); G01S 17/10 (2020.01); G01S 17/931 (2020.01)
CPC G01S 7/4861 (2013.01) [G01S 7/4865 (2013.01); G01S 17/10 (2013.01); G01S 17/931 (2020.01)] 13 Claims
OG exemplary drawing
 
1. A light detection and ranging (LIDAR) system comprising:
a transmitter configured to output a number of output pulses to a target object;
a receiver configured to receive a plurality of input pulses corresponding to the number of output pulses; and
a signal processor including a signal converter and an encoder,
wherein the signal converter is configured to convert the plurality of input pulses into discrete signals and comprises a plurality of comparators into which the plurality of input pulses is input, and
the encoder is configured to encode amplitude information of the plurality of input pulses converted into the discrete signals, and comprises:
an inversion logic gate configured to invert and transfer a current data value when a rising edge occurs at output terminals of comparators except for a first comparator of the plurality of comparators;
a register configured to receive and store a data value of the inversion logic gate; and
a logic gate configured to generate an amplitude encoding value corresponding to amplitude information of the input pulse, and comprising:
a first XOR gate having a first input terminal connected to a first output terminal of the register and a second input terminal connected to a second output terminal of the register; and
a second XOR gate having a first input terminal connected to the second output terminal of the register and a second input terminal connected to a third output terminal of the register.