-
公开(公告)号：US11644559B2
公开(公告)日：2023-05-09
申请号：US17016967
申请日：2020-09-10
发明人： Hiroki Mori
CPC分类号： G01S13/48 , G01S7/032 , H01Q21/061
摘要： According to one embodiment, a radar apparatus includes first antennas, a second antenna, and a third antenna. If the first antennas are used as transmission antennas, the second and third antennas are used as reception antennas. If the second and third antennas are used as the transmission antennas, the first antennas are used as the reception antennas. The first antennas are arranged in a first direction at a first distance and in a second direction crossing the first direction at a second distance. A distance between the second antenna and the third antenna in the first direction is approximately equal to a product of the first distance and a number of first antennas arranged in the first direction.
-
公开(公告)号：US10721747B2
公开(公告)日：2020-07-21
申请号：US15705228
申请日：2017-09-14
发明人： Tomoko Adachi , Ryoko Matsuo , Tomoya Tandai , Hiroki Mori , Kentaro Taniguchi
摘要： According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first field containing information to identify a plurality of wireless communication terminals, and configured to multiplex and transmit a plurality of second fields in each of which a first frame containing an address of any of the wireless communication terminals is set; and a controller configured to determine, for the first frames, values pertaining to lengths of durations to suppress access to a wireless medium to the wireless communication terminal having an address different from the address contained in each of the first frames. The transmitter is configured to set the values in the first frames, the second fields, or the first field. The controller is configured to determine the values so that the durations have an end at an identical time.
-
公开(公告)号：US10063342B2
公开(公告)日：2018-08-28
申请号：US15192403
申请日：2016-06-24
发明人： Toshihisa Nabetani , Tsuguhide Aoki , Hiroki Mori
IPC分类号： H04L1/00 , H04B7/06 , H04B7/0452 , H04L5/00
CPC分类号： H04L1/0026 , H04B7/0452 , H04B7/068 , H04B7/0697 , H04L5/00 , H04L5/0094
摘要： A wireless communication device includes a transmitter and a receiver. The transmitter transmits a first frame containing notification information to specify first and second wireless terminals and a second frame for channel estimation. The receiver receives a third frame transmitter from the first wireless terminal and a fourth frame transmitted from the second wireless terminal. The third frame and the fourth frame are transmitted in a multiplexing scheme by the first and the second wireless terminals. The third frame contains first channel information estimated based on the second frame. The fourth frame contains second channel information estimated based on the second frame. The first frame contains at least either information to specify a preamble of the third frame and a preamble of the fourth frame or information to specify a subcarrier used for transmission of the third frame and a subcarrier used for transmission of the fourth frame.
-
4.发明授权公开(公告)号：US10595211B2
公开(公告)日：2020-03-17
申请号：US15706572
申请日：2017-09-15
发明人： Tomoko Adachi , Ryoko Matsuo , Tomoya Tandai , Hiroki Mori , Kentaro Taniguchi
IPC分类号： H04W4/00 , H04W16/28 , H04W84/12 , H04W74/00 , H04W72/04 , H04W72/12 , H04W74/04 , H04W74/08 , H04B7/0452
摘要： According to one embodiment, a wireless communication device, includes a receiver configured to receive a first field, receive at least one of a plurality of second fields having been multiplexed and transmitted, and decode the one of the second fields to obtain a frame in a case where first information identifying the wireless communication device is not set in the first field, and a controller configured to suppress access to a wireless medium during a period indicated by a value set in the frame.
-
公开(公告)号：US10321481B2
公开(公告)日：2019-06-11
申请号：US15437719
申请日：2017-02-21
发明人： Toshihisa Nabetani , Hiroki Mori
IPC分类号： H04W74/08 , H04B7/0413 , H04W72/04 , H04B7/0452 , H04B7/08 , H04W74/00 , H04W4/08 , H04W8/18 , H04W72/12 , H04W84/12 , H04W88/02 , H04W88/08
摘要： According to one embodiment, a wireless communication device includes: controlling circuitry configured to determine parameter information on a backoff time of carrier sensing performed according to CSMA/CA (carrier sense multiple access/collision avoidance) on basis of a number of other wireless communication devices which have established connections with the wireless communication device; and a transmitter configured to transmit a first frame which instructs to transmit a response frame according to the parameter information.
-
6.发明授权公开(公告)号：US10205540B2
公开(公告)日：2019-02-12
申请号：US15444774
申请日：2017-02-28
IPC分类号： H04B17/345 , H04B15/04 , H04B1/04 , H04B1/16 , H04W16/14
摘要： A signal detection device according to the embodiment of the present invention includes a memory and processing circuitry. The memory is configured to store a program. The processing circuitry is for executing the program and is configured to calculate a first signal level indicative of a signal level of a digital complex signal; calculate a first variation indicative of a temporal variation of the first signal level; calculate a statistic in a predetermined first time period on the basis of the first variation within the first time period; and determine, on the basis of the statistic in the first time period, whether or not an interference source signal indicative of a signal of a radio wave coming from an interference source is included in the digital complex signals within the first time period.
-
公开(公告)号：US12061251B2
公开(公告)日：2024-08-13
申请号：US17691312
申请日：2022-03-10
发明人： Kazuhiro Tsujimura , Hiroki Mori
IPC分类号： G01S13/34
CPC分类号： G01S13/34
摘要： According to one embodiment, a radar device includes a first and second radar units. The first radar unit includes a first substrate, and first transmit and receive array antennas. The second radar unit includes a second substrate, and second transmit and receive array antennas. A shape of the first substrate corresponds to a shape of the second substrate. A relative position of the first transmit or receive array antenna in the first substrate corresponds to a relative position of the second transmit or receive array antenna in the second substrate.
-
公开(公告)号：US11355860B2
公开(公告)日：2022-06-07
申请号：US17016237
申请日：2020-09-09
发明人： Hiroki Mori
IPC分类号： H01Q21/00 , G01S13/00 , G01S13/06 , H01Q21/22 , G01S7/03 , H01Q21/06 , G01S13/86 , G01S13/88
摘要： According to one embodiment, an antenna device includes a first transmission array antenna including transmission antennas of a first number, arranged with a first distance in a first direction, a first reception array antenna including reception antennas of a second number, arranged with a second distance in a first direction or a second direction which is parallel to the first direction, a second transmission array antenna including transmission antennas of a third number, arranged with the first distance in the first direction, and a second reception array antenna including reception antennas of a fourth number, arranged with the second distance in the first direction or the second direction.
-
公开(公告)号：US09806788B2
公开(公告)日：2017-10-31
申请号：US15265367
申请日：2016-09-14
发明人： Hiroki Mori
CPC分类号： H04B7/0808 , H04B17/20
摘要： According to one embodiment, a wireless communication device includes a receiver configured to receive signals via a plurality of antennas and processing circuitry configured to segment each of signals received by a plurality of antennas into a plurality of elements each defined by a time width and a bandwidth, and measure signal intensities of the elements or groups into which the plurality of elements are divided; select one of the plurality of antennas per element or per group by comparing the signal intensities between the plurality of antennas; and analyze a distribution of the selected antennas to determine an identity of a signal source of the signals.
-
公开(公告)号：US11777230B2
公开(公告)日：2023-10-03
申请号：US17469662
申请日：2021-09-08
发明人： Xu Zhu , Hiroki Mori
CPC分类号： H01Q21/26 , G01S13/9082 , H01Q3/10
摘要： According to one embodiment, an antenna device comprises an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna, and a rotation device configured to rotate the antenna panel. A first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna. A second radio wave is irradiated from the first transmission antenna when the rotation angle is a second angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna.
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.018 秒)
