-
公开(公告)号：US11486970B1
公开(公告)日：2022-11-01
申请号：US16777059
申请日：2020-01-30
发明人： Edouard Schmidtlin , Rui Zhang
摘要： Embodiments discussed herein refer to generating multiple laser beams from a single beam source. Single source multi-beam splitters can produce multiple beams from a single source, precisely control the exit angle of each beam, and ensure that each beam has substantially the same intensity.
-
公开(公告)号：US11486692B2
公开(公告)日：2022-11-01
申请号：US17253370
申请日：2019-04-19
申请人： SICHUAN UNIVERSITY
发明人： Kai LiU , Ziyang Hu , Xiaomin Yang , Bin Xu
IPC分类号： G01B11/00 , G01B11/25 , G01S13/06 , G01S13/89 , G01S15/06 , G01S15/89 , G01S17/06 , G01S17/89
摘要： Provided are a signal source space sensing method and apparatus, and an active sensing system. The method includes: a controller controls a signal transmitter to transmit a first signal to an object to be tested; the controller controls a signal receiver to receive a second signal, which is obtained after the first signal is transmitted by the object; the controller determines a coordinate relationship between the spatial position of said object and a signal source space according to the first signal and the second signal, wherein the signal source space is a coordinate space where the first signal transmitted by the signal transmitter is located; and the controller maps the second signal back to the signal source space according to the coordinate relationship between the spatial position of the object and the signal source space, to obtain a signal source space signal so as to reconstruct a sensing signal.
-
公开(公告)号：US20220304229A1
公开(公告)日：2022-09-29
申请号：US17633572
申请日：2020-04-16
发明人： Fabio Racchella
摘要： A feederhouse assembly (200) for an agricultural harvester (100) includes a feederhouse (200) having an inlet end (204), ea yaw frame (214) adjacent the inlet end (204) and arranged to pivot about a vertical axis (216) relative to the feederhouse (200), and at least one hydraulic cylinder (220) configured to apply a hydraulic force to rotate the yaw frame (214) about the vertical axis (216). A method of connecting a harvesting header to an agricultural harvester includes applying a first hydraulic force from at least one hydraulic cylinder to a yaw frame (214), moving the agricultural harvester toward the harvesting header, securing the harvesting header to the yaw frame (214), and applying a second hydraulic force from the at least one hydraulic cylinder to the yaw frame (214) to orient the harvesting header at a right angle with respect to a longitudinal axis of the agricultural harvester (100).
-
公开(公告)号：US11454707B2
公开(公告)日：2022-09-27
申请号：US16588982
申请日：2019-09-30
摘要： An asymmetric whispering gallery mode resonator device is described. The resonator device includes an asymmetric whispering gallery mode resonator disk (e.g., transparent material, electrooptic material). The resonator disk includes an axial surface along a perimeter of the resonator disk, a top surface, and a bottom surface. A first midplane passes through the axial surface dividing the axial surface into symmetrical halves. The top surface and the bottom surface are substantially parallel, and a second midplane is substantially equidistant between the top surface and the bottom surface. The first midplane and the second midplane are non-coextensive. The asymmetric whispering gallery mode resonator disk can further include a first chamfered edge between the top surface and the axial surface, and a second chamfered edge between the bottom surface and the axial surface. Moreover, the resonator device includes a first electrode on the top surface and a second electrode on the bottom surface.
-
公开(公告)号：US20220291382A1
公开(公告)日：2022-09-15
申请号：US17654010
申请日：2022-03-08
摘要： Apparatus and associated methods relate to detecting jams when an intensity of a reflected signal exceeds a predetermined intensity threshold and an intensity window metric based on historic intensity value(s) fails to exceed an intensity window threshold for more than a predetermined time threshold. In an illustrative example, a jam detection unit (JDU) may emit a signal and detect a reflection of the signal. The JDU may, for example, compare intensity of the reflected signal to the intensity threshold. The JDU, for example, may compare the intensity threshold with at least one historic intensity value to determine the intensity window metric. If the intensity value exceeds the intensity threshold and the intensity window metric has not exceeded the intensity window threshold for longer than the time threshold, then the JDU may, for example, generate a jam signal. Various embodiments may advantageously detect jams based on intensity of a reflected signal.
-
公开(公告)号：US11421980B2
公开(公告)日：2022-08-23
申请号：US16196362
申请日：2018-11-20
发明人： Arne Heymer
摘要： A method of determining position and orientation of an object using a profilometer. A measurement body has a predetermined polyhedral basic form and a defined spatial relationship with the object. The profilometer captures rectilinear coordinates of at least three measurement points lying on a profile line defined by a profilometer scan-line. Using the coordinates and measurement body geometric values, rotations of the measurement body are calculated about a measurement body z-axis, an intermediate y-axis resulting from the z-axis rotation, and about a profilometer-defined x-axis. Next, three translation displacements of the measurement body relative to the three profilometer-defined axes are calculated using the coordinates, the geometric values of the measurement body, and the above-calculated rotations. The position and an orientation of the object is determined by then applying the defined spatial relationship of the measurement body to the object.
-
公开(公告)号：US11418274B2
公开(公告)日：2022-08-16
申请号：US16850024
申请日：2020-04-16
发明人： Ping-Hung Yin , Jia-Shyang Wang , Teng-Chien Yu
IPC分类号： G01S7/4865 , H04J3/06 , G01S17/06 , G06F3/01
摘要： A multimedia system applying ToF ranging and its operating method are provided. The multimedia system includes a plurality of electronic devices. Each of the electronic devices includes a processing module, a ToF module, and a communication module. The ToF module is configured to perform a ToF operation. The communication module is configured to perform wireless communication. The electronic devices communicate via respective communication modules to formulate an operation protocol and respective UIDs and to perform a time slot synchronization between different electronic devices. The electronic devices sequentially perform the ToF ranging operation according to the operation protocol and the respective UIDs.
-
公开(公告)号：US20220172873A1
公开(公告)日：2022-06-02
申请号：US17107950
申请日：2020-11-30
申请人： Waymo LLC
发明人： Robert Lockwood , Kelvin Kwong
摘要： An example device includes a mounting structure including a first material having a first coefficient of thermal expansion (CTE). The mounting structure includes a center portion and an outer portion. The device further includes a magnetic core for an electrical component that is coupled to the outer portion of the mounting structure. The magnetic core includes a second material having a second CTE. The magnetic core is split into a plurality of sections separated by spaces extending from the center portion to an outer edge of the outer portion. Each of the plurality of sections is separately coupled to the mounting structure, and each of the plurality of sections is connected to the electrical component.
-
公开(公告)号：US11303096B1
公开(公告)日：2022-04-12
申请号：US16356575
申请日：2019-03-18
申请人： Waymo LLC
摘要： A laser diode firing circuit for a light detection and ranging device is disclosed. The firing circuit includes a laser diode coupled in series to a transistor, such that current through the laser diode is controlled by the transistor. The laser diode is configured to emit a pulse of light in response to current flowing through the laser diode. The firing circuit includes a capacitor that is configured to charge via a charging path that includes an inductor and to discharge via a discharge path that includes the laser diode. The transistor controlling current through the laser diode can be a Gallium nitride field effect transistor.
-
公开(公告)号：US20220018945A1
公开(公告)日：2022-01-20
申请号：US17011813
申请日：2020-09-03
发明人： Kwang Oh Kim , Yibing Michelle Wang
IPC分类号： G01S7/4915 , G01S17/58 , G01S7/481 , G01S17/06
摘要： Provided is a readout integrated circuit of a FMCW LiDAR system includes a transimpedance amplifier to receive an optical signal of optical mixer output from balanced PIN photo diode, convert the received optical signal into a current signal including a mixed signal of high and low frequencies, and convert the current signal into a voltage signal including a low frequency sinusoidal waveform, a comparator to receive the voltage signal, and generate a pulse signal from the voltage signal, a primary counter to receive a primary signal corresponding to the pulse signal, and count a number of pulses to generate primary counter data, a reference counter to receive a reference signal, and count a number of pulses to generate reference counter data, and an arithmetic logic unit to receive the primary and reference counter data, and calculate depth information corresponding to a distance of a target.
-
-
-
-
-
-
-
-
-
搜索结果
1167 条记录 (耗时 0.033 秒)
