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公开(公告)号：US20210025968A1
公开(公告)日：2021-01-28
申请号：US16993098
申请日：2020-08-13
Applicant: Google LLC
Inventor： Jaime Lien , Changzhan Gu
IPC: G01S7/03 , G01S13/58 , G01S13/34 , H04W88/06 , G01S7/28 , G01S7/285 , G01S7/35 , G01S13/06 , H04B1/44 , H04L5/14
Abstract: Techniques and apparatuses are described that enable full-duplex operation for radar sensing using a wireless communication chipset. A controller initializes or controls connections between one or more transceivers and antennas in the wireless communication chipset. This enables the wireless communication chipset to be used as a continuous-wave radar or a pulse-Doppler radar. By utilizing these techniques, the wireless communication chipset can be re-purposed or used for wireless communication or radar sensing.
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公开(公告)号：US20180348353A1
公开(公告)日：2018-12-06
申请号：US15928273
申请日：2018-03-22
Applicant: Google LLC
Inventor： Jaime Lien , Changzhan Gu
Abstract: Techniques and apparatuses are described that enable digital beamforming for radar sensing using a wireless communication chipset. A controller initializes or causes the wireless communication chipset to use multiple receiver chains to receive a radar signal that is reflected by a target. A digital beamformer obtains baseband data from the wireless communication chipset and generates a spatial response, which may be used to determine an angular position of the target. The controller can further select which antennas are used for receiving the radar signal. In this way, the controller can further optimize the wireless communication chipset for digital beamforming. By utilizing these techniques, the wireless communication chipset can be used for wireless communication or radar sensing.
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公开(公告)号：US20180348340A1
公开(公告)日：2018-12-06
申请号：US15928346
申请日：2018-03-22
Applicant: Google LLC
Inventor： Jaime Lien , Changzhan Gu
Abstract: Techniques and apparatuses are described that enable full-duplex operation for radar sensing using a wireless communication chipset. A controller initializes or controls connections between one or more transceivers and antennas in the wireless communication chipset. This enables the wireless communication chipset to be used as a continuous-wave radar or a pulse-Doppler radar. By utilizing these techniques, the wireless communication chipset can be re-purposed or used for wireless communication or radar sensing.
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Patent Agency Ranking
公开(公告)号：US11906619B2
公开(公告)日：2024-02-20
申请号：US18175753
申请日：2023-02-28
Applicant: Google LLC
Inventor： Changzhan Gu , Jaime Lien , Nicholas Edward Gillian , Jian Wang
CPC classification number: G01S13/584 , G01S7/417 , G01S7/4808 , G01S13/08 , G01S13/62 , G06F3/017
Abstract: Techniques and apparatuses are described that implement a smart-device-based radar system capable of detecting user gestures in the presence of saturation. In particular, a radar system employs machine learning to compensate for distortions resulting from saturation. This enables gesture recognition to be performed while the radar system's receiver is saturated. As such, the radar system can forgo integrating an automatic gain control circuit to prevent the receiver from becoming saturated. Furthermore, the radar system can operate with higher gains to increasing sensitivity without adding additional antennas. By using machine learning, the radar system's dynamic range increases, which enables the radar system to detect a variety of different types of gestures having small or large radar cross sections, and performed at various distances from the radar system.
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公开(公告)号：US11592547B2
公开(公告)日：2023-02-28
申请号：US16772566
申请日：2019-02-28
Applicant: Google LLC
Inventor： Changzhan Gu , Jaime Lien , Nicholas Edward Gillian , Jian Wang
Abstract: Techniques and apparatuses are described that implement a smart-device-based radar system capable of detecting user gestures in the presence of saturation. In particular, a radar system 104 employs machine learning to compensate for distortions resulting from saturation. This enables gesture recognition to be performed while the radar system 104's receiver 304 is saturated. As such, the radar system 104 can forgo integrating an automatic gain control circuit to prevent the receiver 304 from becoming saturated. Furthermore, the radar system 104 can operate with higher gains to increasing sensitivity without adding additional antennas. By using machine learning, the radar system 104's dynamic range increases, which enables the radar system 104 to detect a variety of different types of gestures having small or large radar cross sections, and performed at various distances from the radar system 104.
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公开(公告)号：US20220299594A1
公开(公告)日：2022-09-22
申请号：US17753213
申请日：2020-10-14
Applicant: Google LLC
Inventor： Daran Wang , Changzhan Gu , Michael Diamond , Zhen Pan
Abstract: An example computing device includes a printed circuit board comprising: a first layer including one or more ground signal paths; a second layer including one or more ground signal paths; a third layer disposed between the first layer and the second layer; a radar antenna portion comprising a first radar antenna and electrically connected to a distal connector of the printed circuit board; a radar clock signal line configured to convey a radar clock signal between the radar antenna portion and the distal connector; and a first ground guard trace electrically coupled to the one or more ground signal paths and positioned adjacent to a first side of the radar clock signal line and parallel to a length of the radar clock signal line.
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公开(公告)号：US20200348390A1
公开(公告)日：2020-11-05
申请号：US16929762
申请日：2020-07-15
Applicant: Google LLC
Inventor： Jaime Lien , Changzhan Gu , Erik M. Olson
Abstract: Techniques and apparatuses are described that enable radar modulations for radar sensing using a wireless communication chipset. A controller initializes or controls modulations performed by the wireless communication chipset. In this way, the controller can enable the wireless communication chipset to perform modulations for wireless communication or radar sensing. In some cases, the controller can further select a wireless communication channel for setting a frequency and a bandwidth of a radar signal, thereby avoiding interference between multiple radar signals or between the radar signal and a communication signal. In other cases, the controller can cause the wireless communication chipset to modulate a signal containing communication data using a radar modulation. This enables another device that receives the signal to perform wireless communication or radar sensing. By utilizing these techniques, the wireless communication chipset can be used for wireless communication or radar sensing.
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公开(公告)号：US10524039B2
公开(公告)日：2019-12-31
申请号：US15980059
申请日：2018-05-15
Applicant: Google LLC
Inventor： Leng Ooi , Changzhan Gu , Jae-won Hwang
IPC: H04R1/10
Abstract: Methods, systems, and devices for enhanced digital headsets are disclosed. An enhanced USB-C headset includes a USB-C connector, a cable extending from the USB-C connector, an inline control box coupled to the USB-C connector through the cable, and a first earphone and a second earphone. The cable includes conductors for transmitting DC bus power, power return, and differential digital signals and extends at least one foot in length. The control box includes a single circuit board, with circuitry for managing digital communications, converting audio data, and providing output signals to drive analog speaker elements of the earphones.
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