Low-power lidar system
AssigneeNXP B.V.
InventorsRonald van der Werf, Maxim Kulesh, Cornelis Gehrels
Life of this patent
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Abstract
A light detection and ranging (LIDAR) system includes transmit optics to transmit a LIDAR transmit signal, receive optics to receive a receive a signal reflected by an object, and a correlator to sample a value of the reflected signal based on a characteristic of the transmit signal, such as a rising edge, a falling edge, or a peak of the transmit signal. The correlator includes a plurality of correlator bins to sample values of the reflected signal at different time increments. The correlator bins include clock inputs that are clocked or activated by the transmit signal.
Claims20
A method comprising:
- generating a light detection and ranging (LIDAR) transmit signal;
- transmitting the transmit signal using transmit optics;
- receiving a signal reflected by an object using receive optics;
- and
- sampling a value of the received signal at a sampling rate that is based on a characteristic of the transmit signal.
An apparatus comprising:
- transmit optics to transmit a light detection and ranging (LIDAR) transmit signal;
- receive optics to receive a receive a signal reflected by an object;
- and
- a correlator to sample a value of the received signal at a sampling rate that is based on a characteristic of the transmit signal.
A non-transitory computer readable medium embodying a set of executable instructions, the set of executable instructions to manipulate at least one processor to:
- generate a light detection and ranging (LIDAR) transmit signal;
- transmit the transmit signal to transmit optics;
- receive a signal reflected by an object from receive optics;
- and
- sample a value of the received signal at a sampling rate that is based on a characteristic of the transmit signal.
Dependencies are inferred from the claim text.