公开(公告)号：US11846720B2

公开(公告)日：2023-12-19

申请号：US17119639

申请日：2020-12-11

Applicant: SOCIONEXT INC.

Inventor： Joji Hayashi

IPC: G01S7/35 ,  G01S13/34

CPC classification number: G01S7/35 ,  G01S13/34

Abstract: A divider control circuit outputs a divider control signal that is meant to increase the division ratio from a first division ratio through a second division ratio greater than the first division ratio to a third division ratio greater than the second division ratio and then return the division ratio through a fourth division ratio smaller than the third division ratio to a fifth division ratio smaller than the fourth division ratio and greater than the first division ratio. Moreover, control is exerted so that the absolute value of the time rate of change of the division ratio in the increase from the second division ratio to the third division ratio is smaller than the absolute value of the time rate of change of the division ratio in the increase from the first division ratio to the second division ratio.

公开(公告)号：US12146943B2

公开(公告)日：2024-11-19

申请号：US17189174

申请日：2021-03-01

Applicant: SOCIONEXT INC.

Inventor： Joji Hayashi

IPC: G01S13/536 ,  G01S13/04 ,  G01S13/86 ,  G01S17/04

Abstract: A sensing method includes: (a) performing first sensing to detect presence or absence of the object in a specific detection area using a first sensor signal received by a radar sensor from the specific detection area; (b) when the presence of the object in the specific detection area is detected by the first sensing in (a), continuing the first sensing and performing second sensing to detect a motion of the object using a second sensor signal transmitted from the radar sensor to the specific detection area, the second sensor signal having a sensing rate higher than a sensing rate of the first sensor signal; and (c) when the absence of the object in the specific detection area is detected by the first sensing in (b), stopping the second sensing and continuing the first sensing.

公开(公告)号：US20230236284A1

公开(公告)日：2023-07-27

申请号：US18295609

申请日：2023-04-04

Applicant: Socionext Inc.

Inventor： Joji Hayashi

IPC: G01S7/03 ,  G01S13/42 ,  G01S7/35

CPC classification number: G01S7/03 ,  G01S13/42 ,  G01S7/352 ,  G01S13/536

Abstract: A radar device includes: a first receiver antenna outputting a first reception signal; a second receiver antenna outputting a second reception signal; a third receiver antenna outputting a third reception signal; a first receiver circuit processing the first reception signal; and a second receiver circuit selecting one of the second reception signal and the third reception signal and processing the selected signal. The first receiver antenna is placed apart from the second receiver antenna in a first direction and apart from the third receiver antenna in a second direction.

公开(公告)号：US11112486B2

公开(公告)日：2021-09-07

申请号：US16450444

申请日：2019-06-24

Applicant: SOCIONEXT INC.

Inventor： Joji Hayashi

IPC: G01S7/35 ,  G01S7/03 ,  G01S13/34 ,  G01S7/02

Abstract: Disclosed is a radar apparatus including: a local oscillator for outputting a local oscillation signal; a transmitter unit; and a receiver unit. The transmitter unit includes: a transmission input configured to receive the local oscillation signal; and a transmitter configured to transmit a transmission signal based on the local oscillation signal that has been received via the transmission input. The receiver unit includes: a reception input configured to receive the local oscillation signal not via the transmission input; a receiver configured to receive a reflection wave based on the transmission signal; a cancel signal generator configured to generate a cancel signal based on the local oscillation signal that has been received via the reception input; and an adder configured to superimpose the cancel signal on a reception signal.

公开(公告)号：US11635487B2

公开(公告)日：2023-04-25

申请号：US16857899

申请日：2020-04-24

Applicant: SOCIONEXT INC.

Inventor： Joji Hayashi

IPC: G01S7/02 ,  G01S7/28 ,  G01S7/292 ,  G01S13/28 ,  H04W72/541

Abstract: A method for controlling a radar apparatus that detects an object using frequency modulation includes: performing first reception of a radio wave in a state where transmission of a radio wave for detecting the object is stopped, to obtain a first reception signal; performing second reception of a radio wave in a state where the transmission of the radio wave is stopped, to obtain a second reception signal, after the performing of the first reception; acquiring a strength of a difference signal between the first reception signal and the second reception signal; comparing the strength with a threshold value; and starting the transmission of the radio wave in a case where the strength is equal to or less than the first threshold value in the comparison.

公开(公告)号：US20210096212A1

公开(公告)日：2021-04-01

申请号：US17119639

申请日：2020-12-11

Applicant: SOCIONEXT INC.

Inventor： Joji Hayashi

IPC: G01S7/35 ,  G01S13/34

Abstract: A divider control circuit outputs a divider control signal that is meant to increase the division ratio from a first division ratio through a second division ratio greater than the first division ratio to a third division ratio greater than the second division ratio and then return the division ratio through a fourth division ratio smaller than the third division ratio to a fifth division ratio smaller than the fourth division ratio and greater than the first division ratio. Moreover, control is exerted so that the absolute value of the time rate of change of the division ratio in the increase from the second division ratio to the third division ratio is smaller than the absolute value of the time rate of change of the division ratio in the increase from the first division ratio to the second division ratio.