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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
发明人： Kenta Iwasa , Hidekuni Yomo
IPC分类号： G01S13/00 , G01S7/03 , G01S7/282 , G01S7/285 , G01S13/42 , G01S13/87 , G01S13/931 , H01Q1/32 , H01Q3/26 , H01Q21/06 , H01Q21/29
CPC分类号： G01S13/003 , G01S7/03 , G01S7/032 , G01S7/282 , G01S7/285 , G01S13/42 , G01S13/878 , H01Q1/3233 , H01Q3/2605 , H01Q21/061 , H01Q21/293 , G01S13/931
摘要： 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
发明人： Hidekuni Yomo , Tomohiro Yui , Kenta Iwasa , Junji Sato
IPC分类号： G01S7/03
CPC分类号： G01S7/038
摘要： 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
发明人： Tomohiro Murata , Hidekuni Yomo
摘要： 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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公开(公告)号：US11635506B2
公开(公告)日：2023-04-25
申请号：US17507564
申请日：2021-10-21
发明人： Kenta Iwasa , Hidekuni Yomo
IPC分类号： G01S13/00 , G01S7/03 , G01S7/282 , G01S7/285 , G01S13/42 , H01Q1/32 , H01Q21/06 , H01Q21/29 , G01S13/87 , H01Q3/26 , G01S13/931
摘要： 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
发明人： Kenta Iwasa , Hidekuni Yomo
摘要： 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
发明人： Takaaki Kishigami , Kenta Iwasa , Hidekuni Yomo
IPC分类号： G01S13/93 , G01S7/03 , G01S13/53 , G01S7/02 , G01S13/931 , G01S13/534
摘要： 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
发明人： Kenta Iwasa , Hidekuni Yomo
IPC分类号： G01S13/00 , G01S7/03 , G01S7/282 , G01S7/285 , G01S13/42 , H01Q1/32 , H01Q21/06 , H01Q21/29 , G01S13/87 , H01Q3/26 , G01S13/931
摘要： 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
发明人： Kenta Iwasa , Hidekuni Yomo
IPC分类号： G01S13/00 , G01S7/03 , G01S7/282 , G01S7/285 , G01S13/42 , H01Q1/32 , H01Q21/06 , H01Q21/29 , G01S13/87 , H01Q3/26 , G01S13/931
CPC分类号： G01S13/003 , G01S7/03 , G01S7/032 , G01S7/282 , G01S7/285 , G01S13/42 , G01S13/878 , H01Q1/3233 , H01Q3/2605 , H01Q21/061 , H01Q21/293 , G01S13/931
摘要： 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：US11543511B2
公开(公告)日：2023-01-03
申请号：US16814595
申请日：2020-03-10
发明人： Tomohiro Murata , Hidekuni Yomo
摘要： A radar apparatus includes an antenna configured to radiate a first electromagnetic wave in a first radiation angle range including a first direction and radiates a second electromagnetic wave in a second radiation angle range including a second direction opposite to the first direction, and a circuit configured to detect a target in each of the first direction and the second direction on the basis of a first reflected signal of the first electromagnetic wave and a second reflected signal of the second electromagnetic wave, which are received by the antenna.
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公开(公告)号：US11209518B2
公开(公告)日：2021-12-28
申请号：US16299725
申请日：2019-03-12
发明人： Kenta Iwasa , Hidekuni Yomo , Ryosuke Shiozaki
IPC分类号： G01S7/03 , G01S7/28 , H01Q3/34 , G01S13/87 , G01S13/931
摘要： A radar device includes a radar transmitting circuit that transmits radar signals from a transmission array antenna, and a radar receiving circuit that receives returning wave signals, where the radar signals have been reflected at a target, from a receiving array antenna. One of the transmitting array antenna and the receiving array antenna includes multiple first antennas of which phase centers are laid out along a first axis direction. The other of the transmitting array antenna and the receiving array antenna includes multiple second antennas of which phase centers are laid out at a second spacing along a second axis direction that is different from the first axis direction. The multiple first antennas include multiple antennas of which the phase centers are laid out at a first spacing, and multiple antennas of which the phase centers are laid out at a third spacing that is different from the first spacing.
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