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11.发明公开公开(公告)号：US20230244262A1
公开(公告)日：2023-08-03
申请号：US18299007
申请日：2023-04-11
Inventor： Hiroshi KOSHIDA , Shinzo KOYAMA , Tatsuya KABE , Masaki TAMARU
CPC classification number: G05F3/265 , G01J1/44 , H01L27/082
Abstract: A substrate current suppression circuit includes: a fixed voltage line that supplies a fixed voltage to the collectors of the third and fourth transistors. The fixed voltage is a voltage higher than the base voltage of the third and fourth transistors when the first polarity is p type, and is a voltage lower than the base voltage when the first polarity is n type.
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公开(公告)号：US20230053841A1
公开(公告)日：2023-02-23
申请号：US17982104
申请日：2022-11-07
Inventor： Yusuke YUASA , Shigeru SAITOU , Shinzo KOYAMA , Yutaka HIROSE , Akihiro ODAGAWA
IPC: G01S17/894 , G01S7/4865
Abstract: An object detection system includes a light emitter, an optical sensor, a controller, and a signal processor. The controller controls the light emitter and the optical sensor to cause range segment signals to be outputted from the optical sensor for corresponding range segments. The signal processor includes: a target object information generator that includes a plurality of generators (a first generator through a fifth generator) capable of operating in parallel and generates items of target object information indicating features of target objects for the range segments; and storage that stores the items of target object information. The target object information generator compares a past one of the items of target object information stored in the storage with a feature of a current one of the target objects detected by the optical sensor to generate a corresponding one of the items of target object information.
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公开(公告)号：US20220011436A1
公开(公告)日：2022-01-13
申请号：US17482365
申请日：2021-09-22
Inventor： Shigeru SAITOU , Shinzo KOYAMA , Motonori ISHII , Masato TAKEMOTO
IPC: G01S17/894 , G01S17/10 , G06T7/11
Abstract: A distance measurement device includes: an image capturer that captures N segmental images corresponding to N segmental distances into which a distance measurement range is divided; and a range image generator that generates a range image from the N segmental images. The range image generator determines: among segmental pixels included in the N segmental images, a segmental pixel having a maximum signal value from N segmental pixels at the same pixel position among pixel positions; a value indicating a segmental distance of the segmental pixel having the maximum signal value to be a distance value of the pixel position of the range image, when the maximum signal value is greater than or equal to a threshold; and a value indicating a value outside the distance measurement range to be the distance value of the pixel position of the range image, when the maximum signal value is less than the threshold.
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公开(公告)号：US20200033451A1
公开(公告)日：2020-01-30
申请号：US16603142
申请日：2017-04-21
Inventor： Shinzo KOYAMA , Akihiro ODAGAWA , Takuma KATAYAMA , Tsuyoshi TANAKA
Abstract: A distance measuring device that measures a distance to an object. The distance measuring device includes: a light source that emits pulsed light; a reflector that reflects and radiates, as radiation light, the pulsed light emitted from the light source, and reflects object light that is the radiation light reflected by the object and returning; and an imager that captures the object light reflected by the reflector. The pulsed light emitted from the light source is diffused light. The light source and the imager are located to face the reflector. The reflector radiates, as the radiation light, light in a shape with a long axis and a short axis. The imager performs exposure in synchronization with the pulsed light to image the object light.
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公开(公告)号：US20250148742A1
公开(公告)日：2025-05-08
申请号：US18838119
申请日：2023-03-23
Inventor： Masato TAKEMOTO , Akihiro ODAGAWA , Shinzo KOYAMA , Shigeru SAITOU
Abstract: An image processing method includes: first processing of acquiring a range gate image using a range gate imaging device that captures an image of a set distance range for a predetermined capture area; second processing of searching for a detection target in the range gate image using a search window having a size corresponding to a capture distance from the range gate imaging device to the set distance range; and third processing of synthesizing, when a window region satisfying a predetermined condition is detected in the range gate image in the second processing, object information included in the window region and a grayscale image acquired using a grayscale imaging device that captures a grayscale image of the predetermined capture area and outputting the result.
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Patent Agency Ranking
公开(公告)号：US20230408331A1
公开(公告)日：2023-12-21
申请号：US18461314
申请日：2023-09-05
Inventor： Masato TAKEMOTO , Shota YAMADA , Shinzo KOYAMA
IPC: G01J1/44 , H01L31/02 , H04N25/772
CPC classification number: G01J1/44 , H01L31/02027 , H04N25/772 , G01J2001/4466 , G01J2001/448
Abstract: A voltage control system has a light receiving array part receiving incident light and a light shielding array part shielding light receiving elements from incident light by a light shielding mechanism. The voltage control system also includes: a voltage application unit applying a bias voltage to an anode terminal; a multiplication state determination unit determining the multiplication state of the light shielding array part based on output signals from cathodes of the light receiving elements in the light shielding array part; and a voltage setting unit performing voltage setting for the bias voltage to be output from the voltage application unit based on the determination results from the multiplication state determination unit.
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公开(公告)号：US20230350068A1
公开(公告)日：2023-11-02
申请号：US18220958
申请日：2023-07-12
Inventor： Shigeru SAITOU , Shinzo KOYAMA , Yusuke YUASA
IPC: G01S17/894 , G01S7/4865 , G06T7/11 , G06V10/75 , G06T7/50
CPC classification number: G01S17/894 , G01S7/4865 , G06T7/11 , G06V10/751 , G06T7/50 , G06T2207/10028 , G06T2207/20021
Abstract: The present disclosure allows evaluation on the reliability of a distance value in a distance image, using a distance measuring device that generates a distance image from a plurality of section images. A reliability calculator obtains a maximum signal amount and a background signal amount from signal amounts in the section images for each pixel of the distance image to calculate, as reliability of distance determination, a difference between the maximum signal amount and the background signal amount. As the reliability of distance determination, an analog amount can be obtained which serves as an index of the reliability of the distance value indicated by the distance image.
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公开(公告)号：US20220011437A1
公开(公告)日：2022-01-13
申请号：US17486863
申请日：2021-09-27
Inventor： Shinzo KOYAMA , Yutaka HIROSE , Toru OKINO , Shigeru SAITOU , Motonori ISHII , Akihiro ODAGAWA
IPC: G01S17/894 , G01S17/36 , G01S7/4865
Abstract: A distance measuring device includes a control unit and a measuring unit. The control unit controls a photodetector unit. The photodetector unit includes a photoelectric transducer element and an output unit. The photoelectric transducer element generates electrical charges on receiving light reflected from a target as a part of measuring light emitted from a light-emitting unit. The output unit outputs an electrical signal representing a quantity of the electrical charges generated by the photoelectric transducer element. The measuring unit calculates, in accordance with the electrical signal, a distance to the target within a measurable range. The control unit sets, in each of a plurality of intervals that form the measurable range, a conversion ratio of the quantity of the electrical charges generated by the photoelectric transducer element to a quantity of the light received by the photoelectric transducer element.
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公开(公告)号：US20200097702A1
公开(公告)日：2020-03-26
申请号：US16494742
申请日：2018-03-12
Inventor： Shigeru SAITOU , Shinzo KOYAMA , Masato TAKEMOTO , Motonori ISHII
Abstract: An image recognition device includes: a luminance image generator and a distance image generator that generate a luminance image and a distance image, respectively, based on an image signal of an imaging target object output from a photoreceptor element; a target object recognition processor that extracts a target-object candidate from the luminance image using a machine learning database; and a three-dimensional object determination processor that uses the distance image to determine whether the extracted target-object candidate is a three-dimensional object. If it is determined that the target-object candidate is not a three-dimensional object, the target-object candidate extracted from the luminance image is prevented from being used, in the machine learning database, as image data for extracting a feature value of a target object.
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公开(公告)号：US20180306954A1
公开(公告)日：2018-10-25
申请号：US16010954
申请日：2018-06-18
Inventor： Shinzo KOYAMA , Motonori ISHII , Shigeru SAITOU , Masato TAKEMOTO , Tsuyoshi TANAKA
CPC classification number: G02B5/282 , B60J1/00 , B60J1/001 , B60J1/02 , B60J1/18 , B60J1/20 , B60R11/02 , B60Y2400/3015 , G01S7/481 , G01S7/4876 , G01S17/93 , G01S17/936 , G02B5/26 , G02B5/28 , H01L31/0232 , H04N7/18
Abstract: Heat-blocking filter is a heat-blocking filter to be installed in a window glass of a vehicle. The heat-blocking filter substantially transmits visible light and infrared light in a first wavelength range, and substantially blocks infrared light outside the first wavelength range.
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