公开(公告)号：US10244363B1

公开(公告)日：2019-03-26

申请号：US14981699

申请日：2015-12-28

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Somasundaram Niranjayan ,  Camerin Cole Hahn ,  Christopher Raymond Grajewski ,  Qicai Shi ,  Matthew Perkins

IPC: H04W4/04 ,  G08B13/196 ,  H04W4/02 ,  G06K9/00

Abstract: An entry portal to a facility may include radio receivers with directional antennas and cameras at known positions in the facility. The receivers acquire device identifier and device data from a mobile device carried by a user passing through the portal. Portal data is generated that is indicative of the coverage volume of a particular antenna that received a signal carrying the device identifier and signal strength of that signal. The cameras acquire images of the user. Other sensors may acquire other information included in the portal data. The portal data, device data, device identifier, and the images are processed to associate a particular account with a person passing through the entry portal. Subsequently, that person may then be tracked using images from other cameras in the facility.

公开(公告)号：US11340373B1

公开(公告)日：2022-05-24

申请号：US16664217

申请日：2019-10-25

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Qicai Shi ,  Christopher Raymond Grajewski ,  Camerin Cole Hahn

IPC: G01N27/72 ,  G01V3/08 ,  H04W4/80 ,  H04B17/318 ,  G01V8/00 ,  G06K7/08

Abstract: A portable device comprises a magnetometer for detecting a magnetic field. When the portable device is at or near a portal, the portable device may detect data from the portal, such as beacon data or a connection message. Responsive to the data from the portal, the portable device operates the magnetometer to detect and characterize a magnetic field generated by the portal, such as by characterizing the magnitude, polarity, and direction of the magnetic field. The portable device generates magnetometer data to indicate the magnetic field strength detected by the magnetometer. The magnetometer data is then transmitted to the portal, along with a device identifier. The portal compares the received magnetometer data to expected magnetic field data to determine presence of the portable device at the portal. The portable device is associated with an account, providing information about entry of a user of that account entering the portal.

公开(公告)号：US10007892B1

公开(公告)日：2018-06-26

申请号：US15082711

申请日：2016-03-28

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Camerin Cole Hahn ,  Qicai Shi ,  Christopher Raymond Grajewski ,  Vinod Lakhi Hingorani ,  Elizabeth Ann Zitzer ,  Somasundaram Niranjayan

IPC: H01Q1/50 ,  G06Q10/08 ,  G01D5/24 ,  H01Q1/22 ,  H04B5/00

CPC classification number: G06Q10/087 ,  G01G7/06 ,  G01G21/23 ,  G01G21/28 ,  H01Q1/38 ,  H01Q1/405 ,  H01Q1/44 ,  H01Q21/065 ,  H04B5/0012 ,  H04B5/0062

Abstract: Capacitive sensors may be used to gather information, such as the presence of objects at an inventory location, such as a shelf. Two or more adjacent capacitive sensors operating at the same time may interfere with one another. Described are techniques to prevent this interference by using seed values to initialize pseudo random sequencing of an order in which capacitive sensors are in operation. The capacitive sensor, or a portion thereof, may be also be used as an antenna. Selection of an initial tuning network for use by the antenna may be determined based on output from the capacitive sensor.

公开(公告)号：US11650625B1

公开(公告)日：2023-05-16

申请号：US16456418

申请日：2019-06-28

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Christopher Raymond Grajewski ,  Maya Shirish Sathaye ,  Joshua Watson ,  Matthew Wilkinson ,  Sameet Ramakrishnan

IPC: G10L25/78 ,  A61B5/24 ,  G06F1/16 ,  A61B5/00 ,  A61B5/11 ,  G06F13/42 ,  G10L25/93

CPC classification number: G06F1/163 ,  A61B5/1118 ,  A61B5/24 ,  A61B5/681 ,  A61B5/742 ,  G06F13/4282 ,  G10L25/78 ,  G10L25/93 ,  A61B2562/0219 ,  G10L2025/783

Abstract: A wearable device includes various sensors including a microphone, heart rate monitor, pressure sensor, and so forth. The user can set the device to acquire audio data of their speech. For example, if the pressure sensor indicates the device is being worn and the user's heart rate exceeds a threshold value, audio data may be acquired. Onboard the device the audio data is processed in various ways such as detecting whether the audio data includes speech, applying a beamforming algorithm, compressing and encrypting the audio, and so forth. The audio data may be processed onboard the device, sent to another device, or a combination thereof for processing to determine sentiment data indicative of perceived emotional content of the speech. A user interface provides the user with information based on the sensor data, sentiment data, and so forth.

公开(公告)号：US10969461B1

公开(公告)日：2021-04-06

申请号：US15614223

申请日：2017-06-05

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Nathan Pius O'Neill ,  Nikolai Orlov ,  Christopher Raymond Grajewski

IPC: G06F11/30 ,  G01S5/02 ,  G01B15/00 ,  G06Q10/08

Abstract: A facility is equipped with a floor containing one or more of a transmitter to generate electromagnetic signals (EMS) or a receiver to receive EMS. A device such as a tote may include one or more of a transmitters to generate EMS that may then be received by the receiver in the floor or a receiver to receive EMS transmitted by the floor. As the tote moves across the floor, tracking data may be generated using the information obtained from the exchange of EMS. Orientation of the tote with respect to the floor may be determined using an asymmetric arrangement of antennas on the tote, by encoding data within the EMS, or a combination thereof. For example, the tote may include three antennas arranged in a triangular layout, or a front antenna and a back antenna each used to transmit an EMS that is indicative of relative placement of the tote.

公开(公告)号：US11087274B1

公开(公告)日：2021-08-10

申请号：US16016398

申请日：2018-06-22

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Camerin Cole Hahn ,  Qicai Shi ,  Christopher Raymond Grajewski ,  Vinod Lakhi Hingorani ,  Elizabeth Ann Zitzer ,  Somasundaram Niranjayan

IPC: H01Q1/22 ,  G06Q10/08 ,  G01D5/24 ,  H04B5/00

Abstract: Sensors at an inventory location can be used to detect the occurrence of an event at the inventory location. For example, capacitive sensors can gather capacitance values, which can then be analyzed for changes that indicate an event has occurred at the inventory location. When an event has been detected, event data is generated and used as a possible trigger to collect additional sensor data. As an example, if an event involving items at an inventory location is detected, such an action can trigger the collection and analysis of additional sensor data, such as weight sensor data, to determine a quantity of the items added or removed from the inventory location.

公开(公告)号：US11057751B1

公开(公告)日：2021-07-06

申请号：US16362378

申请日：2019-03-22

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Somasundaram Niranjayan ,  Camerin Cole Hahn ,  Christopher Raymond Grajewski ,  Qicai Shi ,  Matthew Perkins

IPC: H04W4/33 ,  G08B13/196 ,  H04W4/02 ,  G06K9/00

Abstract: A facility may include antennas directed to a known location and cameras with a field-of-view that encompasses the known location. The antennas acquire a device identifier and device data from a mobile device carried by a user at the known location. Antenna data is then generated to describe the data acquired by the antennas. Image data is also generated from the cameras to include images of a person at the known location. The antenna data and image data are then processed to determine estimated motion values and a comparison of such values is performed to check if such motion values are within a threshold of one another. If the motion values are within a threshold of each other, data indicative of presence of the mobile device at the known location is generated.

公开(公告)号：US10460137B1

公开(公告)日：2019-10-29

申请号：US15890883

申请日：2018-02-07

Applicant: Amazon Technologies, Inc.

Inventor： Joshua David Landry, Sr. ,  Christopher Raymond Grajewski ,  Oleg Kantor ,  Tak Keung Joseph Lui ,  David Bruce McCalib, Jr. ,  Roman Shmulevich ,  Alton Paul Werronen ,  Fabien Lepoutre ,  Mark G. McDonald ,  Patrick Rubin

IPC: G06K19/07 ,  G06K7/10

Abstract: A method of interrogating a plurality of RFID tags comprises interrogating a first RFID tag with a read command comprising a masking value for a predefined portion of a User Memory Bank of the first RFID tag. The predefined portion stores state information for the first RFID tag. The masking value corresponds to a non-quiesced state relative to the read command interrogation. The method further comprises receiving a response from the first RFID tag that indicates that the first RFID tag is in the non-quiesced state. The method further comprises interrogating the first RFID tag with a write command that instructs the first RFID tag to write a predefined value to the predefined portion of the User Memory Bank, wherein writing the predefined value to the predefined portion places the first RFID tag in a quiesced state relative to a subsequent read command interrogation comprising the masking value.

公开(公告)号：US10262294B1

公开(公告)日：2019-04-16

申请号：US15082468

申请日：2016-03-28

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Camerin Cole Hahn ,  Qicai Shi ,  Christopher Raymond Grajewski ,  Vinod Lakhi Hingorani ,  Nathan Pius O'Neill

IPC: G06Q10/08 ,  G01D5/26 ,  G01D5/24 ,  G01G19/52

Abstract: A user may pick, place, or move an item at an inventory location, such as a shelf. Described are techniques to determine a location of one or more of an object, such as an item or a user, with respect to an array of capacitive sensors. The array may be part of the shelf. As an item is added to, moved or removed from the shelf, when the user's hand is near the shelf, and so forth, capacitance measured by one or more of the sensors in the array may change. Based on these changes, a location relative to the sensor array may be determined. A particular shelf may have different areas, each designated as holding a different type of item. The location information obtained from the capacitive sensors may be used to determine which item on the shelf was interacted with.

公开(公告)号：US12156716B1

公开(公告)日：2024-12-03

申请号：US17155485

申请日：2021-01-22

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Adrian Napoles ,  Christopher Raymond Grajewski ,  Andreas Caduff ,  David Heckerman

IPC: A61B6/00 ,  A61B5/01 ,  G16H40/67 ,  H01Q1/27 ,  H04B7/06

Abstract: Data about concentration of one or more types of molecules present within a human body are determined noninvasively using radio frequency (RF) signals. Signals at several different frequencies at very low power levels are emitted using an antenna mounted to a wearable device. Operating values, such as changes to the impedance of the antenna resulting from interaction between the RF signals and the user, are associated with the concentration of one or more types of molecules within the user. These changes in impedance may be relatively small. Circuitry in the device determines internal impedance of the circuitry, compensating for internal impedances and improving overall accuracy of the measured impedance resulting from interaction with the user.