Abstract: The present invention relates to a Lidar sensor capable of removing background noise and a method of removing the noise of the same, and the Lidar sensor may include: a light reception part configured to sense reflected light reflected from an object; a weight generation part configured to generate a weight based on a sensing rate of the reflected light of the light reception part; a first histogram processing unit configured to perform histogram processing of a sensing signal of the light reception part based on the generated weight, and extract data values greater than or equal to a first reference value from bins of the histogram to firstly remove noise; and a second histogram processing unit configured to accumulate the data values extracted from the first histogram processing unit to perform histogram processing, and extract accumulated data values greater than or equal to a second reference value from bins of the histogram in which the data values are accumulated to secondarily remove the noise.

Abstract: Provided is a signal processing apparatus and method for a light-receiving element. The signal processing apparatus includes a signal detection unit configured to perform photonic event detection processes in parallel for at least two light-receiving elements of a pixel array and a histogram generation unit configured to accumulate detection results about photonic events recognized at predefined time intervals by the signal detection unit in a plurality of bins and generate a histogram.

Abstract: Provided are an image sensor and a control method thereof. The image sensor includes a digital detection unit configured to detect light based on a single photon avalanche diode (SPAD), an analog detection unit configured to detect light based on a pinned photodiode (PPD), and a connection unit configured to transfer a specific amount of electric charges to the analog detection unit in detection of the light by the digital detection unit, in which the analog detection unit is further configured to count a number of photons based on an amount of electric charges accumulated during a specific time.

Abstract: A signal processing method and device for a light receiving device are disclosed. The signal processing device cumulatively records, in a search memory, a number of echo laser reception times for N time slots (N is a natural number of 2 or more), selects at least one time slot in which the number of echo laser receptions reaches a candidate threshold as a candidate time slot, divides the candidate time slot into M detailed time slots (M is a natural number of 2 or more), cumulatively records, in a candidate memory, the number of echo laser receptions for each detailed time slot, and determines a reception time of an echo laser based on the number of echo laser receptions for each detailed time slot accumulated in the candidate memory.

Abstract: A signal processing method and device for a light receiving device are disclosed. The signal processing device cumulatively records a number of receptions of an echo laser up to a predefined threshold in N time slots (N is a natural number of 2 or more), selects a plurality of priority time slots in an order in which the number of receptions reaches the threshold, cumulatively records the number of receptions for the plurality of priority time slots, omits records of a number of receptions for remaining time slots, and determines a reception time slot of the echo laser based on an accumulated number of receptions of the plurality of priority time slots.

Abstract: Disclosed are a CMOS temperature sensor for measuring a temperature and an operating method thereof. According to an embodiment, the CMOS temperature sensor for measuring the temperature may include a readout circuit that outputs a readout value by comparing a voltage value at a first end of a capacitor charging a charge based on a proportional current proportional to a temperature with an inverse proportional voltage inversely proportional to the temperature or comparing a voltage value at a second end of the capacitor formed at the other side of the first end with a ground voltage; and a control unit that determines a temperature based on an oscillation period of the readout value output from the readout circuit.

Abstract: The present invention relates to a flash LiDAR sensor using a zoom histogramming time-to-digital converter (TDC). One aspect of the present invention is a LIDAR sensor including a plurality of pixels, in which each of the plurality of pixels includes a TDC using a histogram method, the TDC performs a histogram operation by using M/2 up-down counters (UDCs), the TDC divides a section to be measured into M time bins, and each of the M time bins is allocated to correspond to either an up count or a down count of the M/2 UDCs.

Abstract: Provided are an analog front end (AFE) device for a light-receiving sensor and a method of controlling the AFE device. The AFE device includes a plurality of first signal processors implemented with a n-channel metal oxide semiconductor (NMOS) and a p-channel metal oxide semiconductor (PMOS) on a substrate and configured to output detection signals of photo-detecting devices, and a plurality of second signal processors arranged in a position where the plurality of second signal processors are spaced apart from the plurality of first signal processor, on the substrate and configured to control a dead time of the light-receiving devices.

Abstract: The present invention relates to a Lidar sensor capable of removing background noise and a method of removing the noise of the same, and the Lidar sensor may include: a light reception part configured to sense reflected light reflected from an object; a weight generation part configured to generate a weight based on a sensing rate of the reflected light of the light reception part; a first histogram processing unit configured to perform histogram processing of a sensing signal of the light reception part based on the generated weight, and extract data values greater than or equal to a first reference value from bins of the histogram to firstly remove noise; and a second histogram processing unit configured to accumulate the data values extracted from the first histogram processing unit to perform histogram processing, and extract accumulated data values greater than or equal to a second reference value from bins of the histogram in which the data values are accumulated to secondarily remove the noise.