G01S7/4863

Systems and Methods for High Precision Direct Time-of-Flight Lidar in the Presence of Strong Pile-Up
20230236297 · 2023-07-27 ·

Systems and methods are disclosed that employ a photodetector having a field of view. The photodetector generates signals indicative of photon detections in response to incident light over time. A circuit generates first histogram data and second histogram data in a memory based on the generated signals during first and second collection subframes of a frame respectively using first and second mappings of time to bins respectively, wherein the second mapping of time to bins for the second collection subframe exhibits shorter bin widths than the first mapping of time to bins for the first collection subframe. A range to a target in in the field of view is resolvable in the event of a pile-up condition for the photodetector based on (1) data indicative of a coarse range estimate derived from the first histogram data and (2) data indicative of a range adjustment derived from the second histogram data.

Systems and Methods for High Precision Direct Time-of-Flight Lidar in the Presence of Strong Pile-Up
20230236297 · 2023-07-27 ·

Systems and methods are disclosed that employ a photodetector having a field of view. The photodetector generates signals indicative of photon detections in response to incident light over time. A circuit generates first histogram data and second histogram data in a memory based on the generated signals during first and second collection subframes of a frame respectively using first and second mappings of time to bins respectively, wherein the second mapping of time to bins for the second collection subframe exhibits shorter bin widths than the first mapping of time to bins for the first collection subframe. A range to a target in in the field of view is resolvable in the event of a pile-up condition for the photodetector based on (1) data indicative of a coarse range estimate derived from the first histogram data and (2) data indicative of a range adjustment derived from the second histogram data.

LIDAR WITH MULTI-RANGE CHANNELS
20230028749 · 2023-01-26 · ·

A light detection and ranging, LIDAR, system. The system comprises a set of long range channels and a set of short range channels Each channel comprises an illumination source. The illumination sources of the short range channels are each configured to illuminate a respective spatial region defined by a first solid angle from the respective illumination source. The illumination sources of the long range channels are each configured to illuminate a respective spatial region defined by a second solid angle from the respective illumination source. The first solid angle is larger than the second solid angle and an intensity of each illumination source of the long range channels is greater than an intensity of each illumination source of the short range channels. The set of short range channels are configured to detect objects within a first field of view, and the set of long range channels are configured to detect objects within a second field of view.

LIDAR WITH MULTI-RANGE CHANNELS
20230028749 · 2023-01-26 · ·

A light detection and ranging, LIDAR, system. The system comprises a set of long range channels and a set of short range channels Each channel comprises an illumination source. The illumination sources of the short range channels are each configured to illuminate a respective spatial region defined by a first solid angle from the respective illumination source. The illumination sources of the long range channels are each configured to illuminate a respective spatial region defined by a second solid angle from the respective illumination source. The first solid angle is larger than the second solid angle and an intensity of each illumination source of the long range channels is greater than an intensity of each illumination source of the short range channels. The set of short range channels are configured to detect objects within a first field of view, and the set of long range channels are configured to detect objects within a second field of view.

DISTANCE MEASUREMENT DEVICE, AND METHOD FOR DRIVING DISTANCE MEASUREMENT SENSOR

In a distance measurement device, a control unit performs a charge distribution process in which in a first period, charge generated in a charge generation region is transferred to a first charge storage region and, in a second period, the charge generated in the charge generation region is transferred to a second charge storage region. The control unit applies an electric potential to a first overflow gate electrode so that a potential energy of a region immediately below the first overflow gate electrode is lower than a potential energy of the charge generation region in the first period, and applies an electric potential to a second overflow gate electrode so that a potential energy of a region immediately below the second overflow gate electrode is lower than a potential energy of the charge generation region in the second period.

Systems and methods for machine perception
11709236 · 2023-07-25 · ·

A system to determine a position of one or more objects includes a transmitter to emit a beam of photons to sequentially illuminate regions of one or more objects; multiple cameras that are spaced-apart with each camera having an array of pixels to detect photons; and one or more processor devices that execute stored instructions to perform actions of a method, including: directing the transmitter to sequentially illuminate regions of one or more objects with the beam of photons; for each of the regions, receiving, from the cameras, an array position of each pixel that detected photons of the beam reflected or scattered by the region of the one or more objects; and, for each of the regions detected by the cameras, determining a position of the regions using the received array positions of the pixels that detected the photons of the beam reflected or scattered by that region.

Systems and methods for machine perception
11709236 · 2023-07-25 · ·

A system to determine a position of one or more objects includes a transmitter to emit a beam of photons to sequentially illuminate regions of one or more objects; multiple cameras that are spaced-apart with each camera having an array of pixels to detect photons; and one or more processor devices that execute stored instructions to perform actions of a method, including: directing the transmitter to sequentially illuminate regions of one or more objects with the beam of photons; for each of the regions, receiving, from the cameras, an array position of each pixel that detected photons of the beam reflected or scattered by the region of the one or more objects; and, for each of the regions detected by the cameras, determining a position of the regions using the received array positions of the pixels that detected the photons of the beam reflected or scattered by that region.

LASER DISTANCE MEASURING DEVICE, LASER DISTANCE MEASURING METHOD, AND MOVABLE PLATFORM

A laser distance measuring device, a laser distance measuring method, and a movable platform are provided. The laser distance measuring device includes a transmitting module and a receiving module. The transmitting module includes a transmitting circuit and an optical transmitting system, the transmitting circuit is configured to transmit laser pulses, and the optical transmitting system is configured to disperse the laser pulse, to make the laser pulses cover a designated field-of-view area. The receiving module includes a receiving circuit and an optical receiving system, the receiving circuit includes an APD array operating in a linear mode and is configured to receive at least some of returning laser pulses upon the laser pulses being reflected back by a measured object, and convert the at least some of the returning laser pulses into an electrical signal.

LASER DISTANCE MEASURING DEVICE, LASER DISTANCE MEASURING METHOD, AND MOVABLE PLATFORM

A laser distance measuring device, a laser distance measuring method, and a movable platform are provided. The laser distance measuring device includes a transmitting module and a receiving module. The transmitting module includes a transmitting circuit and an optical transmitting system, the transmitting circuit is configured to transmit laser pulses, and the optical transmitting system is configured to disperse the laser pulse, to make the laser pulses cover a designated field-of-view area. The receiving module includes a receiving circuit and an optical receiving system, the receiving circuit includes an APD array operating in a linear mode and is configured to receive at least some of returning laser pulses upon the laser pulses being reflected back by a measured object, and convert the at least some of the returning laser pulses into an electrical signal.

SIGNAL PROCESSING DEVICE AND SENSING MODULE
20230023133 · 2023-01-26 ·

A signal processing device according to the present technology includes a multistage-branching-wired-line unit that supplies the same signal to a plurality of target elements via multistage-branched wired lines, and a logic circuit arranged at each of stages of the multistage-branching-wired-line unit, in which the wired lines in at least a certain space between the stages in the multistage-branching-wired-line unit cross each other.