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公开(公告)号：US10551494B2
公开(公告)日：2020-02-04
申请号：US15786081
申请日：2017-10-17
Inventor： Yoshito Hirai , Tomohiro Yui , Hidekuni Yomo , Hirohito Mukai
Abstract: A road information detector acquires road information by emitting a beam via a variable directivity transmission antenna to a road sign having plural flat portions and includes a transceiver that controls the antenna to scan the beam by switching an emission angle including an azimuth angle relative to the front direction of a vehicle and receives, as reflected wave signals, waves reflected by the flat portions, a distance and reflected wave intensity detector that detects a distance between the vehicle and each of the flat portions and a reflected wave intensity of each of the reflected waves, an emission angle detector that detects the emission angle based on the reflected wave signal, and a road information analyzer that acquires the road information by generating a heat map based on the emission angles, distances, and reflected wave intensities and analyzing the heat map using a threshold value of the wave intensity.
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公开(公告)号：US10222453B2
公开(公告)日：2019-03-05
申请号：US15156319
申请日：2016-05-16
Inventor： Hidekuni Yomo , Hirohito Mukai , Tomohiro Yui , Yoshito Hirai
IPC: G01S7/02 , G01S15/93 , G01S15/02 , G01S7/52 , G01S13/86 , G01S13/93 , G01S15/87 , G01S7/36 , G01S13/42
Abstract: In a radar device mounted in a host vehicle, a radar transmitting unit transmits a radar signal; a light detection unit detects ON or OFF of a light of another vehicle in which the radar device is mounted; and a timing control unit sets a transmission timing of the radar signal and a light ON timing of a light of the host vehicle, the light ON timing is synchronized with the transmission timing on basis of detected ON or OFF of the light of the other vehicle. The set transmission timing is different from a transmission timing of a radar signal of the radar device mounted in the other vehicle.
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公开(公告)号：US12072409B2
公开(公告)日：2024-08-27
申请号：US18481854
申请日：2023-10-05
Inventor： Kenta Iwasa , Hidekuni Yomo
IPC: G01S13/00 , G01S7/03 , G01S7/282 , G01S7/285 , G01S13/42 , G01S13/87 , G01S13/931 , H01Q1/32 , H01Q3/26 , H01Q21/06 , H01Q21/29
CPC classification number: G01S13/003 , G01S7/03 , G01S7/032 , G01S7/282 , G01S7/285 , G01S13/42 , G01S13/878 , H01Q1/3233 , H01Q3/2605 , H01Q21/061 , H01Q21/293 , G01S13/931
Abstract: One of a transmitting array antenna and a receiving array antenna includes a first antenna group and a second antenna group. The first antenna group includes one or more first antenna elements of which the phase centers of the antenna elements are laid out at each first layout spacing following a first axis direction, and a shared antenna element. The second antenna group includes a plurality of second antenna elements and the one shared antenna element, and the phase centers of the antenna elements are laid out in two columns at each second layout spacing following a second axis direction that is different from the first axis direction. The phase centers of the antenna elements included in each of the two columns differ from each other regarding position in the second axis direction.
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公开(公告)号：US11874391B2
公开(公告)日：2024-01-16
申请号：US17208226
申请日：2021-03-22
Inventor： Hidekuni Yomo , Tomohiro Yui , Kenta Iwasa , Junji Sato
IPC: G01S7/03
CPC classification number: G01S7/038
Abstract: Performance of a radar apparatus including a plurality of transceiver ICs is improved. The radar apparatus includes: a plurality of integrated circuit, which, in operation, perform signal processing on a received signal; and a signal processing circuit, which, in operation, compensates for a deviation between the plurality of integrated circuits based on a difference between leak radio wave components received by receive antennas corresponding respectively to the plurality of integrated circuits.
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公开(公告)号：US11782147B2
公开(公告)日：2023-10-10
申请号：US18070026
申请日：2022-11-28
Inventor： Tomohiro Murata , Hidekuni Yomo
Abstract: An object detection apparatus in a vehicle is provided. The object detection apparatus includes one or more sensors configured to detect at least one object located on at least three rows of seats in the vehicle, the one or more sensors being positioned on a ceiling of the vehicle. The object detection apparatus further includes a circuit configured to determine whether or not the at least one object detected is a living-object. A number of the one or more sensors is less than a number of the at least three rows of seats.
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Patent Agency Ranking
公开(公告)号：US11635506B2
公开(公告)日：2023-04-25
申请号：US17507564
申请日：2021-10-21
Inventor： Kenta Iwasa , Hidekuni Yomo
IPC: G01S13/00 , G01S7/03 , G01S7/282 , G01S7/285 , G01S13/42 , H01Q1/32 , H01Q21/06 , H01Q21/29 , G01S13/87 , H01Q3/26 , G01S13/931
Abstract: One of a transmitting array antenna and a receiving array antenna includes a first antenna group and a second antenna group. The first antenna group includes one or more first antenna elements of which the phase centers of the antenna elements are laid out at each first layout spacing following a first axis direction, and a shared antenna element. The second antenna group includes a plurality of second antenna elements and the one shared antenna element, and the phase centers of the antenna elements are laid out in two columns at each second layout spacing following a second axis direction that is different from the first axis direction. The phase centers of the antenna elements included in each of the two columns differ from each other regarding position in the second axis direction.
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公开(公告)号：US11448725B2
公开(公告)日：2022-09-20
申请号：US16584278
申请日：2019-09-26
Inventor： Kenta Iwasa , Hidekuni Yomo
Abstract: To provide an improved radar apparatus capable of expanding the aperture length per antenna element and the aperture length of the virtual reception array antenna. One of a transmission array antenna and a reception array antenna includes a first antenna element group having m-pieces of antenna elements arranged at a first interval Dt along a first axis direction (m is an integer of 1 or larger), and the other one of the transmission array antenna and the reception array antenna includes a second antenna element group having (n+1)-pieces of antenna elements arranged at a second interval Dr(n) along the first axis direction (n is an integer of 1 or larger).
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公开(公告)号：US11428805B2
公开(公告)日：2022-08-30
申请号：US16898856
申请日：2020-06-11
Inventor： Takaaki Kishigami , Kenta Iwasa , Hidekuni Yomo
IPC: G01S13/93 , G01S7/03 , G01S13/53 , G01S7/02 , G01S13/931 , G01S13/534
Abstract: Radar transmitter includes a plurality of transmit antennas that transmit a plurality of transmission signals using a multiplexing transmission, and a transmission circuit. The transmission circuit applies phase rotation amounts corresponding to combinations of Doppler shift amounts and code sequences to the plurality of transmission signals. Each of the combinations of the Doppler shift amounts and the code sequences has at least one different from other combination. The number of multiplexes of the code sequence corresponding to at least one of the Doppler shift amounts in the combinations is different from the number of multiplexing of code sequences corresponding to the remaining Doppler shift amounts.
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公开(公告)号：US11187795B2
公开(公告)日：2021-11-30
申请号：US16289127
申请日：2019-02-28
Inventor： Kenta Iwasa , Hidekuni Yomo
IPC: G01S13/00 , G01S7/03 , G01S7/282 , G01S7/285 , G01S13/42 , H01Q1/32 , H01Q21/06 , H01Q21/29 , G01S13/87 , H01Q3/26 , G01S13/931
Abstract: One of a transmitting array antenna and a receiving array antenna includes a first antenna group and a second antenna group. The first antenna group includes one or more first antenna elements of which the phase centers of the antenna elements are laid out at each first layout spacing following a first axis direction, and a shared antenna element. The second antenna group includes a plurality of second antenna elements and the one shared antenna element, and the phase centers of the antenna elements are laid out in two columns at each second layout spacing following a second axis direction that is different from the first axis direction. The phase centers of the antenna elements included in each of the two columns differ from each other regarding position in the second axis direction.
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公开(公告)号：US11815586B2
公开(公告)日：2023-11-14
申请号：US18179255
申请日：2023-03-06
Inventor： Kenta Iwasa , Hidekuni Yomo
IPC: G01S13/00 , G01S7/03 , G01S7/282 , G01S7/285 , G01S13/42 , H01Q1/32 , H01Q21/06 , H01Q21/29 , G01S13/87 , H01Q3/26 , G01S13/931
CPC classification number: G01S13/003 , G01S7/03 , G01S7/032 , G01S7/282 , G01S7/285 , G01S13/42 , G01S13/878 , H01Q1/3233 , H01Q3/2605 , H01Q21/061 , H01Q21/293 , G01S13/931
Abstract: One of a transmitting array antenna and a receiving array antenna includes a first antenna group and a second antenna group. The first antenna group includes one or more first antenna elements of which the phase centers of the antenna elements are laid out at each first layout spacing following a first axis direction, and a shared antenna element. The second antenna group includes a plurality of second antenna elements and the one shared antenna element, and the phase centers of the antenna elements are laid out in two columns at each second layout spacing following a second axis direction that is different from the first axis direction. The phase centers of the antenna elements included in each of the two columns differ from each other regarding position in the second axis direction.
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