公开(公告)号：US12216231B2

公开(公告)日：2025-02-04

申请号：US17103220

申请日：2020-11-24

Applicant: Waymo LLC

Inventor： Youming Qin ,  Paul Karplus

IPC: G01S7/481 ,  G01S7/00 ,  G01S17/00 ,  G01S17/931 ,  G08C17/02 ,  H02J50/10 ,  H04B5/24 ,  H04L5/00 ,  H04W4/38

Abstract: A sensing device includes a stationary portion and a rotating portion. The rotating portion is spaced apart from the stationary portion by a gap and is configured to rotate relative to the stationary portion. The rotating portion includes one or more sensors that generate data. A communication interface in the rotating portion is configured to encode the data with error correction codes to provide encoded data, modulate a radio frequency (RF) signal that includes a plurality of sub-carriers with the encoded data to provide a data-modulated RF signal (e.g., an orthogonal frequency-division multiplexing (OFDM) signal), and transmit the data-modulated RF signal to the stationary portion via a wireless data transformer. The wireless data transformer includes a first conductive structure in the stationary portion and a second conductive structure in the rotating portion. The first and second conductive structures are inductively coupled together across the gap.

公开(公告)号：US20250130317A1

公开(公告)日：2025-04-24

申请号：US18999012

申请日：2024-12-23

Applicant: Waymo LLC

Inventor： Youming Qin ,  Paul Karplus

IPC: G01S7/481 ,  G01S7/00 ,  G01S17/00 ,  G01S17/931 ,  G08C17/02 ,  H02J50/10 ,  H04B5/24 ,  H04L5/00 ,  H04W4/38

Abstract: A sensing device includes a stationary portion and a rotating portion. The rotating portion is spaced apart from the stationary portion by a gap and is configured to rotate relative to the stationary portion. The rotating portion includes one or more sensors that generate data. A communication interface in the rotating portion is configured to encode the data with error correction codes to provide encoded data, modulate a radio frequency (RF) signal that includes a plurality of sub-carriers with the encoded data to provide a data-modulated RF signal (e.g., an orthogonal frequency-division multiplexing (OFDM) signal), and transmit the data-modulated RF signal to the stationary portion via a wireless data transformer. The wireless data transformer includes a first conductive structure in the stationary portion and a second conductive structure in the rotating portion. The first and second conductive structures are inductively coupled together across the gap.

公开(公告)号：US20210199777A1

公开(公告)日：2021-07-01

申请号：US17103220

申请日：2020-11-24

Applicant: Waymo LLC

Inventor： Youming Qin ,  Paul Karplus

IPC: G01S7/481 ,  G01S7/00 ,  G01S17/00 ,  G01S17/931 ,  H04L5/00

Abstract: A sensing device includes a stationary portion and a rotating portion. The rotating portion is spaced apart from the stationary portion by a gap and is configured to rotate relative to the stationary portion. The rotating portion includes one or more sensors that generate data. A communication interface in the rotating portion is configured to encode the data with error correction codes to provide encoded data, modulate a radio frequency (RF) signal that includes a plurality of sub-carriers with the encoded data to provide a data-modulated RF signal (e.g., an orthogonal frequency-division multiplexing (OFDM) signal), and transmit the data-modulated RF signal to the stationary portion via a wireless data transformer. The wireless data transformer includes a first conductive structure in the stationary portion and a second conductive structure in the rotating portion. The first and second conductive structures are inductively coupled together across the gap.