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公开(公告)号：US20240386375A1
公开(公告)日：2024-11-21
申请号：US18789002
申请日：2024-07-30
Applicant: Automaton, Inc.
Inventor： Debarun Dhar , David Stephenson , Joe Mueller , Paul Petrus , Ryan Milne
IPC: G06Q10/087 , G06K7/10
Abstract: A radio-frequency identification (RFID) tag, or tag, is affixed to a particular item and stores unique identifying information about that item. It can be queried with a reader that transmits wireless signals to the tag and receive the tag's responses, which can be correlated with information in inventory records. Conventionally, when a reader stops receiving a tag's responses to these queries, the inventory records are updated to show that the tag and associated item have been removed from the inventory. But a tag can stop producing detectable response for other reasons, including being too close to other tags, so simply removing the tag and item can lead to inaccurate inventory records. Stateful inventory technology address this problem by maintaining and transitioning tags among different states, including a stale state for tags that have not been read recently, depending on when and where the tags were last read.
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公开(公告)号：US11915567B2
公开(公告)日：2024-02-27
申请号：US17346775
申请日：2021-06-14
Applicant: Automaton, Inc.
Inventor： Spencer Hewett
IPC: G08B13/24
CPC classification number: G08B13/2428 , G08B13/2451
Abstract: A system for RFID-based retail management that includes a set of antennas, an RFID transceiver connected to the set of antennas; and a microprocessor-based system manager that controls the RFID transceiver and transforms RFID response data from the RFID transceiver into RFID tag location data according to read probability methods.
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公开(公告)号：US20230130857A1
公开(公告)日：2023-04-27
申请号：US18065988
申请日：2022-12-14
Applicant: Automaton, Inc.
Inventor： Spencer Hewett
Abstract: A system and method for locating radio-frequency identification tags within a predetermined area. The method can incorporate sub-threshold superposition response mapping techniques, alone, or in combination with other methods for locating radio-frequency identification tags such as but not limited to time differential on arrival (TDOA), frequency domain phase difference on arrival (FD-PDOA), and radio signal strength indication (RSSI). The system can include a plurality of antennas dispersed in a predefined area; one or more radio-frequency identification tags; a radio-frequency transceiver in communication with said antennas; a phase modulator coupled to the radio-frequency transceiver; and a system controller in communication with said transceiver and said phase modulator. Calibration techniques can be employed to map constructive interference zones for improved accuracy.
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公开(公告)号：US11408965B2
公开(公告)日：2022-08-09
申请号：US16717249
申请日：2019-12-17
Applicant: Automaton, Inc.
Inventor： Spencer Hewett , Adam Blair , Ken Seiff , Michael Murphy , Mark Wieman , Tamara Adlin
Abstract: A radio frequency identification (RFID) system includes an array of antennas to distinguish line-of-sight (LOS) paths from non-line-of-sight (NLOS) paths. The distance between adjacent antennas in the array of antennas is less than half the wavelength of the radio frequency (RF) signal of the system. Each antenna in the antenna array is also digitally controlled to change relative phase difference among the antennas, thereby allowing digital steering of the array of antennas across angles of arrival (AOAs) between 0 and π. The digital steering generates a plot of signal amplitudes as a function of AOAs. LOS paths are distinguished from NLOS paths based on the shapes (e.g., depth, gradient, etc.) of local extremes (e.g., maxima or minima) in the plot.
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公开(公告)号：US20210173073A1
公开(公告)日：2021-06-10
申请号：US17127039
申请日：2020-12-18
Applicant: Automaton, Inc.
Inventor： Spencer Hewett
Abstract: A system and method for locating radio-frequency identification tags within a predetermined area. The method can incorporate sub-threshold superposition response mapping techniques, alone, or in combination with other methods for locating radio-frequency identification tags such as but not limited to time differential on arrival (TDOA), frequency domain phase difference on arrival (FD-PDOA), and radio signal strength indication (RSSI). The system can include a plurality of antennas dispersed in a predefined area; one or more radio-frequency identification tags; a radio-frequency transceiver in communication with said antennas; a phase modulator coupled to the radio-frequency transceiver; and a system controller in communication with said transceiver and said phase modulator. Calibration techniques can be employed to map constructive interference zones for improved accuracy.
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Patent Agency Ranking
公开(公告)号：US20250045409A1
公开(公告)日：2025-02-06
申请号：US18925384
申请日：2024-10-24
Applicant: Automaton, Inc.
Inventor： David Winn
Abstract: Radio-frequency identification (RFID) tag readers or sensors interrogate and locate RFID tags in stores, warehouses, and other environments. Unfortunately, these sensors are vulnerable to intrusions, including attacks that can expose any computer network to which the sensors are coupled. Attacks like these can be prevented using a secure booting process for distributing and loading an operating system and/or other software onto each sensor. When the sensor first boots up, it validates a pair of locally stored binary files, e.g., using a pair of locally stored digital keys. Once booted, it establishes a secure connection to a controller, then downloads, validates, and executes a binary file from the controller. Executing the binary file from the controller loads an operating system kernel into the sensor's memory for secure operation.
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公开(公告)号：US20240330614A1
公开(公告)日：2024-10-03
申请号：US18574811
申请日：2022-06-30
Applicant: Joe MUELLER , Adam BLAIR , Jeff GOOS , Automaton, Inc.
Inventor： Joe Mueller , Adam Blair , Jeff Goos
CPC classification number: G06K7/10019 , H04B1/0003
Abstract: A radio-frequency identification (RFID) tag reader interrogates a passive RFID tag by transmitting a signal to the tag, then detecting a much weaker reply at the same carrier frequency from the tag. Unfortunately, self-interference caused by signal leakage within the reader or crosstalk among the reader's antenna elements can make the reply more difficult to detect and limit the range at which the reader can sense tags. A self-interference cancellation circuit in the reader reduces or suppresses the effects of signal leakage and crosstalk, enabling detection of weaker tag replies. The self-interference cancellation circuit can calibrate itself before each transmission to ensure good performance. This improves the reader's sensitivity, increases the reader's range, reduces the reader's power consumption, and/or reduces the minimum required dynamic range of the analog-to-digital converters (ADCs) that digitize the received tag replies.
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公开(公告)号：US20220082651A1
公开(公告)日：2022-03-17
申请号：US17532521
申请日：2021-11-22
Applicant: Automaton, Inc.
Inventor： Spencer Hewett , Adam Blair , Ken Seiff , Michael Murphy , Mark Wieman , Tamara Adlin
Abstract: A radio frequency identification (RFID) system includes an array of antennas to distinguish line-of-sight (LOS) paths from non-line-of-sight (NLOS) paths. The distance between adjacent antennas in the array of antennas is less than half the wavelength of the radio frequency (RF) signal of the system. Each antenna in the antenna array is also digitally controlled to change relative phase difference among the antennas, thereby allowing digital steering of the array of antennas across angles of arrival (AOAs) between 0 and π. The digital steering generates a plot of signal amplitudes as a function of AOAs. LOS paths are distinguished from NLOS paths based on the shapes (e.g., depth, gradient, etc.) of local extremes (e.g., maxima or minima) in the plot.
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公开(公告)号：US11043093B2
公开(公告)日：2021-06-22
申请号：US15995400
申请日：2018-06-01
Applicant: Automaton, Inc.
Inventor： Spencer Hewett
IPC: G08B13/24
Abstract: A system for RFID-based retail management that includes a set of antennas, an RFID transceiver connected to the set of antennas; and a microprocessor-based system manager that controls the RFID transceiver and transforms RFID response data from the RFID transceiver into RFID tag location data according to read probability methods.
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公开(公告)号：US10013860B2
公开(公告)日：2018-07-03
申请号：US14598615
申请日：2015-01-16
Applicant: Automaton, Inc.
Inventor： Spencer Hewett
IPC: G08B13/24
CPC classification number: G08B13/2428 , G08B13/2451
Abstract: A system for RFID-based retail management that includes a set of antennas, an RFID transceiver connected to the set of antennas; and a microprocessor-based system manager that controls the RFID transceiver and transforms RFID response data from the RFID transceiver into RFID tag location data according to read probability methods.
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