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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.
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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
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.
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公开(公告)号：US10948339B1
公开(公告)日：2021-03-16
申请号：US16840072
申请日：2020-04-03
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Qicai Shi , Nathan Pius O'Neill
IPC: G01G23/00 , G06Q10/08 , G01G19/414
Abstract: Fixtures can hold one or more items. Load cells may be used to measure the weight of the items on the fixture. In cases where items are added to or removed from the fixture, the load cells will detect a weight change at the fixture. Data reflecting the weight change is then used to determine interactions with the items on the fixture. However, vibrations to the fixture can introduce noise which can lead to inaccuracies in weight data acquired from the load cells. A vibration sensor can be used to measure the level of vibration detected at the fixture. Weight data acquired during a time interval when vibrations exceed a vibration threshold value is deemed invalid weight data. By contrast, weight data acquired when vibrations do not exceed the vibration threshold value will be deemed valid weight data that can be used for determining interactions with items at the fixture.
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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
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.
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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
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.
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Patent Agency Ranking
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.
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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
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.
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公开(公告)号：US10591348B1
公开(公告)日：2020-03-17
申请号：US15388340
申请日：2016-12-22
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Qicai Shi , Nathan Pius O'Neill
Abstract: Shelves or other fixtures may be used to hold items at a facility. Load cells at the fixtures may be used to acquire weight data indicative of changes to the fixture as items are added or removed from the fixture. The fixtures, such as a freezer case, may include a door that when opened or closed produces air movement with respect to the shelves. This air movement may produce weight data that could be interpreted as a false event, such as a pick or place, even when none has taken place. A door sensor provides data that is used to determine when the door has been opened or closed. Weight data occurring for some time after the opening of the door or before the closing of the door may be disregarded.
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公开(公告)号：US10520352B1
公开(公告)日：2019-12-31
申请号：US15388528
申请日：2016-12-22
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Qicai Shi , Nathan Pius O'Neill
Abstract: Shelves or other fixtures may be used to hold items at a facility. Load cells at the shelf may be used to acquire weight data indicative of changes as items are added or removed from the shelf. The shelves may be part of a fixture that includes a door that results in air movement with respect to the shelves when opened or closed. This air movement may produce weight data that is erroneously indicative of an event, such as a pick or place, even when no actual event has taken place. Weight data from load cells of a shelf may be analyzed to determine a trajectory associated with changes in the weight data over time. A portion of the space may be designated as being associated with invalid weight data. If the trajectory avoids this portion of the space, the weight data may be deemed valid.
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公开(公告)号：US10520353B1
公开(公告)日：2019-12-31
申请号：US15388427
申请日：2016-12-22
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Qicai Shi , Nathan Pius O'Neill
IPC: G01G19/52 , G01G19/414 , G06Q10/08
Abstract: Shelves or other fixtures may be used to hold items at a facility. Load cells at the fixtures may be used to acquire weight data indicative of changes to the fixture as items are added or removed from the fixture. The fixtures, such as a freezer case, may include a door that when opened or closed results in air movement with respect to the shelves. This air movement may produce weight data that is erroneously indicative of a false event, such as a pick or place, even when no actual event has taken place. Weight data from load cells in the shelves may be analyzed to determine a correlation in the data from multiple shelves. If there is a high correlation in the changes to the weight data at multiple shelves, the weight data may be disregarded as being due to air movement.
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