Optical scanning device, driving method of optical scanning device, and image drawing system

    公开(公告)号:US12302041B2

    公开(公告)日:2025-05-13

    申请号:US17738868

    申请日:2022-05-06

    Abstract: A driving controller provides a first driving signal having a first driving frequency to a first actuator, provides a second driving signal having a second driving frequency to a second actuator, derives a first average phase delay time by averaging a first phase delay time of an output signal of a first angle detection sensor with respect to the first driving signal in a plurality of cycles, derives a second average phase delay time by averaging a second phase delay time of an output signal of a second angle detection sensor with respect to the second driving signal in a plurality of cycles, generates a first reference signal based on the first driving signal and the first average phase delay time, and generates a second reference signal based on the second driving signal and the second average phase delay time.

    Information suggestion system, information suggestion method, program, and recording medium

    公开(公告)号:US12235893B2

    公开(公告)日:2025-02-25

    申请号:US18334971

    申请日:2023-06-14

    Abstract: Provided are an information suggestion system, an information suggestion method, a program, and a recording medium capable of suggesting information of interest to many users to a product provider related to the information from an image group of a plurality of users.
    In the information suggestion system, the information suggestion method, the program, and the recording medium, an image group acquisition unit acquires an image group of a plurality of users, and an image analysis unit detects an imaging location of each image and an object appearing in each image. An imaging number count unit counts an imaging number of same-type images which are captured at the same imaging location and in which the same object appears, and an imaging frequency calculation unit calculates an imaging frequency of the same-type images. An information suggestion unit suggests same-type image information related to the same imaging location and the same object of the same-type image of which the imaging number and the imaging frequency satisfy a predetermined condition to a product provider related to the same-type image information.

    Optical scanning device, method of driving optical scanning device, and image drawing system

    公开(公告)号:US12159562B2

    公开(公告)日:2024-12-03

    申请号:US18152816

    申请日:2023-01-11

    Abstract: A processor applies a first driving signal having a first driving frequency to a first actuator, applies a second driving signal having a second driving frequency to a second actuator, generates a first angle detection signal by performing first frequency filter processing based on the first driving frequency on an output signal of a first angle detection sensor, generates a second angle detection signal by performing second frequency filter processing based on the second driving frequency on an output signal of a second angle detection sensor, derives a first angle, which is an angle of a mirror portion around a first axis, based on the first angle detection signal, derives a second angle, which is an angle of the mirror portion around a second axis, based on the second angle detection signal, adjusts the first driving signal based on the first angle, and adjusts the second driving signal based on the second angle.

    Information suggestion system, information suggestion method, program, and recording medium

    公开(公告)号:US11720625B2

    公开(公告)日:2023-08-08

    申请号:US16896958

    申请日:2020-06-09

    CPC classification number: G06F16/583 G06F16/535 G06F16/5866

    Abstract: Provided are an information suggestion system, an information suggestion method, a program, and a recording medium capable of suggesting information of interest to many users to a product provider related to the information from an image group of a plurality of users.
    In the information suggestion system, the information suggestion method, the program, and the recording medium, an image group acquisition unit acquires an image group of a plurality of users, and an image analysis unit detects an imaging location of each image and an object appearing in each image. An imaging number count unit counts an imaging number of same-type images which are captured at the same imaging location and in which the same object appears, and an imaging frequency calculation unit calculates an imaging frequency of the same-type images. An information suggestion unit suggests same-type image information related to the same imaging location and the same object of the same-type image of which the imaging number and the imaging frequency satisfy a predetermined condition to a product provider related to the same-type image information.

    Three-dimensional information detection device

    公开(公告)号:US10834378B2

    公开(公告)日:2020-11-10

    申请号:US16452973

    申请日:2019-06-26

    Abstract: Provided is a three-dimensional information detection device having a configuration in which detection accuracy of three-dimensional information of a measurement target object is not lowered even in a case where an optical system that includes a projection unit, a first imaging unit and a second imaging unit is covered with a light transmissive cover so that the optical system is not exposed to the outside. The three-dimensional information detection device includes the projection unit that projects an image pattern onto a measurement target object, the first imaging unit and the second imaging unit that respectively image the image pattern, a transmissive cover that covers the optical system that includes the projection unit, the first imaging unit, and the second imaging unit, and a calculation unit that calculates three-dimensional information of the measurement target object on the basis of the image pattern that is imaged using the first imaging unit and the second imaging unit. At least a part of a mounting surface of the optical system is formed by a light absorbing member, and the first imaging unit and the second imaging unit are disposed out of a region to which reflected light that is regularly reflected from the cover in projection light of the image pattern is directly incident.

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