公开(公告)号：US11042748B2

公开(公告)日：2021-06-22

申请号：US16751361

申请日：2020-01-24

Applicant: X Development LLC

Inventor： Jonas Witt ,  Elmar Mair

IPC: G06K9/00 ,  G06K9/62 ,  G01S17/42 ,  G06K9/46 ,  G05D1/02

Abstract: Methods, systems, and apparatus for receiving data that represents a portion of a property that was obtained by a robot, identifying, based at least on the data, objects that the data indicates as being located within the portion of the property, determining, based on the objects, a semantic zone type corresponding to the portion of the property, accessing a mapping hierarchy for the property, wherein the mapping hierarchy for the property specifies semantic zones of the property that have corresponding semantic zone types and are associated with locations at the property, and specifies characteristics of the semantic zones, and selecting, from among the semantic zones and based at least on the semantic zone type and the data, a particular semantic zone, and setting, as a current location of the robot at the property, a particular location at the property associated with the particular semantic zone.

公开(公告)号：US20210174206A1

公开(公告)日：2021-06-10

申请号：US17111364

申请日：2020-12-03

Applicant: X Development LLC

Inventor： Ardavan Oskooi ,  Christopher Hogan ,  Alec M. Hammond ,  Steven G. Johnson

IPC: G06N3/08 ,  G06F30/20 ,  G06N3/04

Abstract: In some embodiments, a method for optimal parallel execution of a simulation of a design is provided. A computing device extracts one or more features from the design. The computing device provides at least the one or more features as inputs to one or more machine learning models to determine one or more predictions of execution times. The computing device determines an optimum execution architecture based on the one or more predictions of execution times. The computing device distributes portions of the design for simulation based on the optimum execution architecture. In some embodiments, one or more machine learning models are trained to generate outputs for predicting an optimal parallel execution architecture for simulation of a design.

公开(公告)号：US20210159978A1

公开(公告)日：2021-05-27

申请号：US16697541

申请日：2019-11-27

Applicant: X Development LLC

Inventor： Nam-hyong Kim ,  Baris Erkmen ,  Andrei Kazmierski ,  Devin Brinkley ,  John Moody ,  Markus Demartini ,  Wei-cheng Lai ,  Halleh Balch

IPC: H04B10/112 ,  H04B10/67

Abstract: Aspects of the disclosure provide an optical communication system. The system may include a receiver lens system configured to receive a light beam from a remote optical communication system and direct the light beam to a photodetector. The system may also include the photodetector. The photodetector may be configured to convert the received light beam into an electrical signal, and the photodetector may be positioned at a focal plane of the receiver lens system. The system may also include a phase-aberrating element arranged with respect to the receiver lens system and the photodetector such that the phase-aberrating element is configured to provide uniform angular irradiance at the focal plane of the receiver lens system.

公开(公告)号：US20210145351A1

公开(公告)日：2021-05-20

申请号：US16868573

申请日：2020-05-07

Applicant: X DEVELOPMENT LLC

Inventor： Nick Robertson ,  Russell Mirov ,  John Stivoric

IPC: A61B5/00 ,  A61F11/00 ,  A61B5/0478 ,  A61F2/18 ,  A61N1/05

Abstract: The technology involves scaffold structures used for in-ear sensor systems. Such systems that can perform biometric signal detection or act as a human-computer interface. Scaffolding arrangements minimize the amount of material placed in the ear while providing a secure fitting device that can be worn for hours, days or longer in order to provide maximal benefit to the wearer. The scaffolding includes a “C”-shaped arcuate curvature for at least part of the housing. This configuration can act as a natural leaf spring to help maintain the housing in contact with different points along the ear. Sensors are located along various points of the scaffolding for use in different diagnostic situations. Different components of an on-board sensor input and processing system can be distributed along different parts of the scaffolding. Such structures beneficially minimize ambient sound occlusion and avoid the need of an exterior strap or clip worn around the ear.

公开(公告)号：US20210143930A1

公开(公告)日：2021-05-13

申请号：US17084032

申请日：2020-10-29

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: H04J14/02 ,  H04B10/25 ,  G06F30/367 ,  G06F30/30

Abstract: A multi-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal including four distinct wavelength channels, four output regions, each adapted to receive a corresponding one of the four distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region optically disposed between the input region and the four output regions. The dispersive region includes a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that each correspond to a change in refractive index of the dispersive region and collectively structure the dispersive region to optically separate each of the four distinct wavelength channels from the multi-channel optical signal and respectively guide each of the four distinct wavelength channels to the corresponding one of the four output regions.

公开(公告)号：US20210137400A1

公开(公告)日：2021-05-13

申请号：US16682570

申请日：2019-11-13

Applicant: X Development LLC

Inventor： Russell Mirov

IPC: A61B5/0402 ,  A61B5/04 ,  A61B5/0476 ,  A61B5/0488

Abstract: The technology provides a system and method for simulating and detecting bio signals such as brain bio-signals. The technology can be used for medical or non-medical purposes, for instance to simulate or evaluate certain medical conditions using a physical brain-type phantom body. A set of optical fibers provides modulated signals received from an optical signal modulator, which is managed by a controller to generate repeatable signals with high fidelity. The modulated signals are received by a set of emission elements such as photoreceivers or other optical electrodes disposed within or otherwise about the phantom body. The emission elements output electrical signals corresponding to the input modulated optical signals. The electrical signals are detected by a set of sensors. The sensors are coupled to a receiver device that is able to evaluate the electrical signals, such as for an electroencephalograph (EEG), electrocardiogram (ECG), electromyogram (EMG) or magnetoencephalography (MEG) diagnostic system.

公开(公告)号：US10987869B2

公开(公告)日：2021-04-27

申请号：US16458628

申请日：2019-07-01

Applicant: X Development LLC

Inventor： Jeff Linnell ,  Jonathan Proto ,  Brandon Kruysman ,  Steven Moody

IPC: B29C33/60 ,  B29C64/379 ,  B29C67/24 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/124 ,  B33Y50/02 ,  B29C64/245 ,  B29C64/393 ,  B29C64/286 ,  B29C64/129 ,  B29C33/00

Abstract: Described herein are three-dimensional (3D) printer systems and methods, which may provide for “continuous pull” 3D printing. An illustrative 3D printer includes: a resin container, a base plate, a light source arranged below the resin container and operable to cure resin in the resin container; and a control system operable to: (a) receive model data specifying a 3D structure; (b) determine 2D images corresponding to layers of the 3D object; and (c) generate control signals to operate the light source and the base plate to sequentially form the layers of the 3D object onto the base plate, wherein the base plate moves a formed portion of the 3D object upward after formation of each layer, and wherein at least a surface of a formed portion of the 3D object remains in contact with the resin in the resin container throughout the formation of the layers of the 3D object.

公开(公告)号：US20210112768A1

公开(公告)日：2021-04-22

申请号：US16802545

申请日：2020-02-26

Applicant: X Development LLC

Inventor： Anupama Thubagere Jagadeesh

IPC: A01H17/00 ,  A01G18/10

Abstract: This disclosure describes compositions and methods for delivering nutrients (e.g., nitrogen) to plants.

公开(公告)号：US20210103849A1

公开(公告)日：2021-04-08

申请号：US17063660

申请日：2020-10-05

Applicant: X Development LLC

Inventor： Guillaume Verdon-Akzam

IPC: G06N10/00

Abstract: Methods, systems, and apparatus for generating a Gottesman-Kitaev-Preskill (GKP) quantum state that includes a series of Gaussian peaks of target width and target separation embedded in a Gaussian envelope. In one aspect, a method includes obtaining a fourth qudit in an initial state, wherein the initial state comprises a tensor product of a state of a first qudit encoding the Gaussian envelope, a state of a second qudit encoding the target separation, and a state of a third qudit encoding the target width; applying a hybrid digital-analog swap operation to the fourth qudit and a quantum analog register in an initial state to obtain a modified state of the quantum analog register, where the hybrid digital-analog swap operation is based on a swap operation comprising multiple adder operations; and providing the modified state of the quantum analog register as an approximate GKP quantum state.

公开(公告)号：US20210103847A1

公开(公告)日：2021-04-08

申请号：US17063492

申请日：2020-10-05

Applicant: X Development LLC

Inventor： Guillame Verdon Akzam

IPC: G06N10/00 ,  H04B10/70 ,  H03M1/66 ,  H03M1/12

Abstract: Quantum repeater systems and apparatus for quantum communication. In one aspect, a system includes a quantum signal receiver configured to receive a quantum field signal; a quantum signal converter configured to: sample quantum analog signals from a quantum field signal received by the quantum signal receiver; encode sampled quantum analog signals as corresponding digital quantum information in one or more qudits, comprising applying a hybrid analog-digital encoding operation to each quantum analog signal and a qudit in an initial state; decode digital quantum information stored in the one or more qudits as a recovered quantum field signal, comprising applying a hybrid digital-analog decoding operation to each qudit and a quantum analog register in an initial state; a quantum memory comprising qudits and configured to store digital quantum information encoded by the quantum signal converter; and a quantum signal transmitter configured to transmit the recovered quantum field signal.