公开(公告)号：US20210033727A1

公开(公告)日：2021-02-04

申请号：US17044426

申请日：2019-01-25

Applicant: KYOCERA Corporation

Inventor： Tooru SAHARA ,  Masamitsu NISHIKIDO ,  Yutaka OOTSUKI

IPC: G01S13/931 ,  G01S13/89 ,  G01S13/02 ,  G06K9/00

Abstract: An electronic device includes a controller that performs control to enable switching between a first band mode such that a transmission wave is in a first band and a second band mode such that the transmission wave is in a second band broader than the first band. The controller performs control to switch to the second band mode when an object is detected within a predetermined distance in the first band mode.

公开(公告)号：US20240369700A1

公开(公告)日：2024-11-07

申请号：US18683366

申请日：2022-08-09

Applicant: KYOCERA Corporation

Inventor： Fangwei TONG ,  Tooru SAHARA ,  Takuya HOMMA ,  Jun KURODA ,  Kenji YAMAMOTO

IPC: G01S13/931 ,  G01S7/41 ,  G01S13/34

Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a reception antenna that receives a reflected wave, which is the reflected transmission wave, a controller that controls a radiation pattern of the transmission wave, a signal processor that detects an object on the basis of a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The controller performs control such that, when the transmission wave is transmitted a plurality of times in certain units, a transmission wave with a varied radiation pattern is included at least once. The signal processor outputs a result of the detection of the object on the basis of a composite cluster, which is superimposed point groups of a plurality of clusters obtained by performing clustering on results of detection performed on the object the plurality of times.

公开(公告)号：US20240310478A1

公开(公告)日：2024-09-19

申请号：US18575956

申请日：2022-07-08

Applicant: KYOCERA Corporation

Inventor： Tooru SAHARA ,  Jun KURODA ,  Kenji YAMAMOTO ,  Takuya HOMMA ,  Fangwei TONG

IPC: G01S7/282 ,  G01S13/32 ,  G01S13/931

CPC classification number: G01S7/282 ,  G01S13/32 ,  G01S13/931

Abstract: An electronic device includes a transmission antenna, a reception antenna, a signal processor, a quality determining unit, and a controller. The transmission antenna transmits a transmission wave. The reception antenna receives a reflected wave that is the transmission wave having been reflected. The signal processor calculates, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave, a distance between the electronic device and an object that reflects the transmission wave. The quality determining unit determines a quality of the reception signal. The controller performs control for transmitting the transmission wave in an operation mode corresponding to the distance between the electronic device and the object, based on the quality of the reception signal determined by the quality determining unit.

公开(公告)号：US20240288559A1

公开(公告)日：2024-08-29

申请号：US18681800

申请日：2022-08-08

Applicant: KYOCERA Corporation

Inventor： Fangwei TONG ,  Tooru SAHARA ,  Takuya HOMMA ,  Jun KURODA ,  Kenji YAMAMOTO

IPC: G01S7/4911 ,  G01S13/931

CPC classification number: G01S7/4911 ,  G01S13/931 ,  G01S2013/932

Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a reception antenna that receives a reflected wave, which is the reflected transmission wave, a controller that controls a radiation pattern of the transmission wave, a signal processor that detects an object on the basis of a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The controller performs control such that, when the transmission wave is transmitted a plurality of times in certain units, a transmission wave with a varied radiation pattern is included at least once. The signal processor outputs a result of the detection of the object on the basis of a selected cluster, whose area of a range over which a point group spreads is the smallest among a plurality of clusters obtained by performing clustering on results of detection performed on the object the plurality of times.

公开(公告)号：US20230408668A1

公开(公告)日：2023-12-21

申请号：US18251311

申请日：2021-11-11

Applicant: KYOCERA Corporation

Inventor： Tooru SAHARA ,  Jun KURODA ,  Takuya HOMMA ,  Fangwei TONG ,  Kenji YAMAMOTO

IPC: G01S13/04 ,  G01S13/931 ,  G01S13/42

CPC classification number: G01S13/04 ,  G01S13/931 ,  G01S13/42 ,  G01S2013/9325

Abstract: An electronic device included in a mobility device includes a transmission antenna, a reception antenna, and a controller. The transmission antenna transmits a transmission wave. The reception antenna receives a reflected wave that is the transmission wave having been reflected. The controller detects an object, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The controller determines whether the mobility device is rearmost among multiple mobility devices traveling in a platoon, in accordance with whether an object having a relative velocity of a predetermined threshold or less relative to the mobility device is detected at a predetermined distance behind the mobility device in a traveling direction of the mobility device.

公开(公告)号：US20230400553A1

公开(公告)日：2023-12-14

申请号：US18247851

申请日：2021-10-04

Applicant: KYOCERA Corporation

Inventor： Fangwei TONG ,  Tooru SAHARA ,  Takuya HOMMA ,  Jun KURODA ,  Kenji YAMAMOTO

IPC: G01S7/41 ,  G01S13/42 ,  G01S13/931 ,  G01S13/04

CPC classification number: G01S7/417 ,  G01S13/42 ,  G01S13/931 ,  G01S13/04

Abstract: An electronic device includes a transmission antenna, a reception antenna, and a signal processor. The transmission antenna is configured to transmit a transmission wave. The reception antenna is configured to receive a reflection wave resulting from reflection of the transmission wave. The signal processor is configured to detect an object based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflection wave. The signal processor classifies a point group representing the object in accordance with a prescribed parameter when performing clustering on detection results of the object.

公开(公告)号：US20230288557A1

公开(公告)日：2023-09-14

申请号：US18004177

申请日：2021-07-06

Applicant: KYOCERA Corporation

Inventor： Jun KURODA ,  Tooru SAHARA ,  Fangwei TONG ,  Takuya HOMMA

IPC: G01S15/42

CPC classification number: G01S15/42 ,  G01S13/42

Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a plurality of reception antennas that receive a reflected wave that is the transmission wave having been reflected, and a signal processing unit that detects an object with a subspace method, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The signal processing unit estimates a direction of arrival of the reflected wave, based on solutions of an algebraic equation Root-MUSIC Polynomial (hereinafter referred to as “RMP solutions”) in a Root-MUSIC method that satisfy a first requirement and a second requirement in terms of positions of the RMP solutions in a complex plane. The first requirement is a requirement related to a distance between a unit circle and each of the RMP solutions in the complex plane. The second requirement is a requirement related to a distance or an argument between at least two adjacent RMP solutions among the RMP solutions in the complex plane.

公开(公告)号：US20220390554A1

公开(公告)日：2022-12-08

申请号：US17755815

申请日：2020-11-09

Applicant: KYOCERA Corporation

Inventor： Youhei MURAKAMI ,  Masamitsu NISHIKIDO ,  Tooru SAHARA ,  Satoshi KAWAJI ,  Takuya HOMMA ,  Masayuki SATO

IPC: G01S7/35 ,  G01S13/34

Abstract: An electronic device includes a transmission antenna that transmits a transmission wave; a reception antenna that receives a reflected wave that is the transmission wave having been reflected; a control unit that detects an object that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave; and a gain adjustment unit that adjusts a gain of the reception signal. The control unit performs control to transmit the transmission wave in at least two different modes. The gain adjustment unit adjusts the gain of the reception signal for each of the modes.

公开(公告)号：US20220221568A1

公开(公告)日：2022-07-14

申请号：US17594546

申请日：2020-04-01

Applicant: KYOCERA Corporation

Inventor： Masamitsu NISHIKIDO ,  Tooru SAHARA ,  Youhei MURAKAMI ,  Satoshi KAWAJI ,  Masayuki SATO ,  Takuya HOMMA

IPC: G01S13/34 ,  G01S13/44 ,  G01S13/58 ,  G01S13/86 ,  G01S17/931 ,  G01S7/00 ,  G01S7/02

Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a reception antenna that receives a reflected wave that is the reflected transmission wave, and a control unit that detects an object that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The electronic device transmits, to an information processing apparatus, sensing information based on the transmission signal and the reception signal at a location of the electronic device along with location information of the electronic device.

公开(公告)号：US20220221567A1

公开(公告)日：2022-07-14

申请号：US17595127

申请日：2020-05-12

Applicant: KYOCERA Corporation

Inventor： Tooru SAHARA ,  Youhei MURAKAMI ,  Satoshi KAWAJI ,  Masayuki SATO ,  Takuya HOMMA ,  Masamitsu NISHIKIDO

IPC: G01S13/08 ,  G01S13/931 ,  G01S7/41

Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a reception antenna that receives a reflected wave that is the transmission wave having been reflected, and a control unit. The control unit detects a target by using a constant false alarm rate, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The control unit establishes reference regions on a far side in a distance direction with respect to a test region in a distribution of signal intensities based on the reception signal in the distance direction, and sets a threshold for use in detection of the target, based on an order statistic among the signal intensities in the reference regions.