Patents Assigned to Symbol Technologies, LLC
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Patent number: 11012919Abstract: A method in a client device of mitigating connection impact on service infrastructure includes: prior to initiating a connection to a service, generating an impact indicator corresponding to the service, the impact indicator representing a predicted load at the service; determining whether the impact indicator exceeds an impact threshold; when the impact indicator exceeds the impact threshold, incrementing a connection interval according to a backoff interval; and initiating a connection with the service upon expiry of the connection interval.Type: GrantFiled: December 7, 2017Date of Patent: May 18, 2021Assignee: Symbol Technologies, LLCInventors: Subramani Rajendiran, Satish Shivarudrappa, Sandeep Ramakrishnan, Nagendra Desai
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Patent number: 11012810Abstract: A mobile device locationing system that overrides the reported position with that of the charge room when the AC charge signal is detected by the device.Type: GrantFiled: May 15, 2019Date of Patent: May 18, 2021Assignee: Symbol Technologies, LLCInventors: Russell Calvarese, Richard J. Lavery, Menuka Gayan Senevirathna, Dammika Prasad Wijethunga
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Patent number: 11009347Abstract: A distance to a target to be read by image capture over a range of working distances is determined by directing an aiming light spot along an aiming axis to the target, and by capturing a first image of the target containing the aiming light spot, and by capturing a second image of the target without the aiming light spot. Each image is captured in a frame over a field of view having an imaging axis offset from the aiming axis. An image pre-processor compares first image data from the first image with second image data from the second image over a common fractional region of both frames to obtain a position of the aiming light spot in the first image, and determines the distance to the target based on the position of the aiming light spot in the first image.Type: GrantFiled: May 26, 2016Date of Patent: May 18, 2021Assignee: Symbol Technologies, LLCInventors: Carl D. Wittenberg, David P. Goren
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Patent number: 11003804Abstract: Embodiments of the present invention are generally directed to system and methods for estimating the time associated with completion of loading and/or unloading of a container. In an embodiment, the present invention is a method of estimating an estimated time to completion (ETC) of loading a container. The method includes: capturing, via an image capture apparatus, a three-dimensional image representative of a three-dimensional formation, the three-dimensional image having a plurality of points with three-dimensional point data; based at least in part on a first sub-plurality of the points, determining an active load time for the container; based at least in part on a second sub-plurality of the points, determining a fullness of the container; and estimating, by a controller, the ETC based on the active load time and on the fullness.Type: GrantFiled: December 22, 2017Date of Patent: May 11, 2021Assignee: Symbol Technologies, LLCInventors: Adithya H. Krishnamurthy, Miroslav Trajkovic
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Patent number: 10949798Abstract: A device and method for multimodal localization and mapping for a mobile automation apparatus is provided. Features are extracted from images acquired by a ceiling-facing image device of the mobile automation apparatus in an environment, and stored in association with estimated positions of the mobile automation apparatus in the environment as determined from one or more sensors, as well as in association with features extracted from depth data acquired from a depth-sensing device, for example as map data. The map data is later used by the mobile automation apparatus to navigate the environment based, at least in part, on further images acquired by the ceiling-facing image device.Type: GrantFiled: May 1, 2017Date of Patent: March 16, 2021Assignee: Symbol Technologies, LLCInventors: Thomas D. Kingsford, Chengzhi W. Liu, Harsoveet Singh, Timothy D. Barfoot
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Patent number: 10929623Abstract: Near and far imagers image close-in and far-out targets over relatively wider and relatively narrower imaging fields of view, respectively. An aiming assembly directs to a target a visible aiming light pattern having an aiming light spot and a pair of collinear aiming light lines. The aiming light spot is substantially centered between the aiming light lines. A controller determines a distance to the target based on a position of the aiming light spot in the imaging field of view of a default one of the imagers, selects at least one of the imagers based on the determined distance, and enables both the close-in and the far-out targets to be positioned substantially entirely within the respective imaging field of view of the selected imager.Type: GrantFiled: April 5, 2016Date of Patent: February 23, 2021Assignee: Symbol Technologies, LLCInventors: Carl D. Wittenberg, Chinh Tan, Ronald A. Petrozzo, Paul F. Denimarck, Jr.
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Patent number: 10841559Abstract: Three-dimensional (3D) depth imaging systems and methods are disclosed for use in commercial trailer loading. In various aspects, a 3D-depth camera is configured and oriented in a direction to capture 3D image data of a vehicle storage area. A depth-detection application (app) executing on one more processors determines, based on the 3D image data, a void data region, and a floor data region within the 3D image data. Based on the determination of the void data region and the floor data region, the depth-detection app generates an out-of-range indicator that indicates that a wall (e.g., a package wall) situated at a rear section of the vehicle storage area is not detected. The determination that a package wall is not detected causes a dashboard app to modify a graphical representation of the capacity of the vehicle storage area.Type: GrantFiled: December 22, 2017Date of Patent: November 17, 2020Assignee: Symbol Technologies, LLCInventors: Adithya H. Krishnamurthy, Justin F. Barish
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Patent number: 10832436Abstract: A method of recovering label positions in an imaging controller includes: receiving (i) a definition of a plane containing edges of the shelf, and (ii) a plurality of initial label indicators having locations on the plane; assigning the initial label indicators among a plurality of candidate subsets each representing a single physical label; for each candidate subset of initial indicators: generating, for each of a plurality of projection depths relative to the plane, a set of projections of the initial indicators in the candidate subset; determining an aggregate surface area for each set of projections; selecting, as a recovered depth for the candidate subset, one of the projection depths corresponding to the minimum aggregate surface area; and generating a recovered position for the candidate subset based on the recovered depth; and storing the recovered positions.Type: GrantFiled: April 5, 2018Date of Patent: November 10, 2020Assignee: Symbol Technologies, LLCInventors: Joseph Lam, Vlad Gorodetsky, Richard Jeffrey Rzeszutek
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Patent number: 10833465Abstract: A mobile device with edge activation is provided. The mobile device comprises: a housing; a data capture component; an actuator disposed on a side of the housing and configured to activate the data capture component when actuated; a display, disposed within the housing; a touch screen disposed on the display; a tactile indicator at the housing between the actuator and the touch screen; and, an activation area of the touch screen, adjacent the tactile indicator, the activation area configured to initiate a digital location for activating the data capture component when touch input is received at the activation area.Type: GrantFiled: November 15, 2016Date of Patent: November 10, 2020Assignee: Symbol Technologies, LLCInventors: JaeHo Choi, Travis Baldwin, Mu-Kai Shen, Richard Martin
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Patent number: 10823572Abstract: A computing device for generating a navigational path for a mobile automation apparatus includes: a memory storing, for each of a plurality of pairs of poses having predetermined orientations, a group of pre-computed path segments, each path segment traversing the pair of poses and corresponding to one of a set of entry poses and one of a set of exit poses; a navigational controller configured to: obtain a coarse path defined by a sequence of guide poses each having one of the predetermined orientations, the coarse path having a start location and an end location; for each successive pair of the guide poses, retrieve a selected one of the path segments from memory based on orientations of (i) the pair of guide poses, (ii) a preceding guide pose, and (iii) a following guide pose; and generate a final path for navigation by the apparatus by combining the selected path segments.Type: GrantFiled: April 5, 2018Date of Patent: November 3, 2020Assignee: Symbol Technologies, LLCInventors: Zichen Huang, Harsoveet Singh, Sadegh Tajeddin, Stephen L. Smith
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Patent number: 10816638Abstract: Ultrasonic locationing interleaved with alternate audio functions includes a plurality of transmitters for emitting ultrasonic bursts and alternate audio signals. A backend controller schedules the ultrasonic bursts and alternate audio signals from each transmitter. The backend controller can characterize an interference effect of defined interference parameters for each alternate audio signal, with respect to the ultrasonic bursts, and modify interleave scheduling of the ultrasonic bursts and alternate audio signals in accordance with the respective interference effect. A mobile device can receive the ultrasonic bursts for locationing of the mobile device, while a user or other device that can act on information in the alternate audio signals. Input from a user to an interface device can trigger the backend controller to schedule an alternate audio signal containing information related to the input.Type: GrantFiled: September 16, 2014Date of Patent: October 27, 2020Assignee: Symbol Technologies, LLCInventors: Russell E Calvarese, Sean A Connolly, Janine E Dubois, Richard J Lavery, Sean D Marvel
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Patent number: 10817681Abstract: A method and apparatus are disclosed for improving RFID coverage using an antenna array having an adaptive antenna beam. The apparatus includes an RFID reader including an antenna array having a plurality of antenna elements. Subsets of the plurality of antenna elements are selectively activating in order to direct an antenna beam to communicate with at least one RFID tag. The method includes transmitting an interrogation signal from an antenna array by activating one or more subsets of a plurality of antenna elements forming the antenna array. In this way, the interrogation signal is directed thereby improving antenna coverage.Type: GrantFiled: May 6, 2019Date of Patent: October 27, 2020Assignee: Symbol Technologies, LLCInventor: Michael J. Koch
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Patent number: 10809078Abstract: A method of dynamic path generation in a navigational controller includes: generating (i) a plurality of paths extending from a starting location to a goal location, and (ii) a cost for each of the paths; selecting, based on the costs, an optimal path for execution from the plurality of paths; storing a subset of the costs in a cost history queue; responsive to detecting an obstacle during execution of the optimal path, retrieving one of the costs from the cost history queue; determining an initial re-planning search space based on the cost retrieved from the cost history queue; and initiating generation of a re-planned path within the initial re-planning search space.Type: GrantFiled: April 5, 2018Date of Patent: October 20, 2020Assignee: Symbol Technologies, LLCInventors: Sadegh Tajeddin, Zichen Huang, Harsoveet Singh
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Patent number: 10812362Abstract: A client device and method for analysis of a predetermined set of parameters associated with a radio coupling to a WLAN is provided. The client device includes a memory and a radio coupled to at least one processor. The at least one processor executes in the memory a first client Wireless Local Area Network (WLAN) stack having a plurality of layers configured to couple the radio to a WLAN. The at least one processor also executes in the memory a second client WLAN stack emulating the plurality of layers of the first client WLAN stack. The at least one processor is configured to receive, at the second client WLAN stack, data from the plurality of layers of the first client WLAN stack and analyze a predetermined set of WLAN parameters of the client device based on the data received from the plurality of layers of the first client WLAN stack.Type: GrantFiled: May 12, 2017Date of Patent: October 20, 2020Assignee: Symbol Technologies, LLCInventors: Ohad Shatil, Subramani Rajendiran
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Patent number: 10802108Abstract: A technique for non-echo pulsed ranging of a mobile device within an environment includes a plurality of emitters within the environment transmitting signal pulses of a predefined frequency to a mobile device that can receive a signal pulse, convert the signal pulse into a digital waveform, store the digital waveform into a buffer having a predetermined length of time, and analyze the digital waveform to detect a signal pulse at the predefined frequency. If a signal pulse is detected, the mobile device can re-analyze the digital waveform that was stored in the buffer to see if another signal pulse can be detected within the waveform, indicating the existence of a reflected signal. If another signal pulse is detected, the mobile device can select the signal pulse that was received first in time, i.e. the direct signal, for use in ranging of the mobile device.Type: GrantFiled: July 31, 2014Date of Patent: October 13, 2020Assignee: Symbol Technologies, LLCInventors: Russell E Calvarese, Richard J Lavery
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Patent number: 10803265Abstract: In an embodiment, the present invention is an imaging engine including: a first imaging assembly having a first FOV; a second imaging assembly having a second FOV; and an aiming assembly configured to emit an aiming light pattern, the aiming light pattern including a first portion and a second portion, the first portion configured to correlate with the first FOV, the second portion configured to correlate with the second FOV, wherein the aiming light pattern is configured such that a combined power of any part of the aiming light pattern encompassed by a 7 mrad cone, as measured from the aiming assembly, is less than or equal to 1 mW, and the total combined power of the entire aiming light pattern is greater than 1 mW.Type: GrantFiled: March 22, 2018Date of Patent: October 13, 2020Assignee: Symbol Technologies, LLCInventors: Chinh Tan, Caihua Chen, Mark Drzymala, Edward Barkan, Carl D. Wittenberg
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Patent number: 10805769Abstract: A tag having a fixed physical location comprising a processor, a memory storing a first identifier, and a wireless communication interface configured to broadcast a first transmission including the first identifier. The processor is configured to receive, from the wireless communication interface, second identifiers of neighboring tags. The processor then configured to store the second identifiers of the neighboring tags in the memory and then modify the first transmission of the first identifier to include the second identifiers of the neighboring tags.Type: GrantFiled: October 17, 2018Date of Patent: October 13, 2020Assignee: Symbol Technologies, LLCInventors: Sundaresan Sundaram, Varun Tandon, Suman Chandra
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Patent number: 10803269Abstract: First and second photodetectors having first and second collection areas receive return laser light that is reflected and scattered from a target, and generate first and second analog electrical output signals having first and second magnitudes. The second collection area is in close proximity to the first collection area. The first output signal is processed to obtain information related to the target. The first and the second output signals are processed, preferably by determining a ratio of the second magnitude to the first magnitude. A working distance to the target is determined based on the determined ratio. One or more reading parameters by which the target is electro-optically read are adjusted based on the determined working distance.Type: GrantFiled: October 30, 2015Date of Patent: October 13, 2020Assignee: Symbol Technologies, LLCInventors: Gary G. Schneider, James R. Giebel, Peter Fazekas
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Patent number: 10776661Abstract: Methods, systems, and apparatus for segmenting and dimensioning objects are disclosed. An example method disclosed herein includes determining a first sensor of a plurality of sensors toward which a vehicle is moving based on image data generating by the plurality of sensors; designating the first sensor as a reference sensor; combining the image data from the plurality of sensors to generate combined image data representative of the vehicle and an object carried by the vehicle, the combining based on reference sensor; generating a plurality of clusters based on the combined image data; and identifying a first one of the clusters nearest the reference sensor as the object.Type: GrantFiled: August 19, 2016Date of Patent: September 15, 2020Assignee: Symbol Technologies, LLCInventors: Ye Gu, Yan Zhang, Bo Fu, Jay J. Williams, Kevin J. O'Connell
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Patent number: D897947Type: GrantFiled: June 1, 2017Date of Patent: October 6, 2020Assignee: Symbol Technologies, LLCInventors: Frank Gong, Huang Chih Huang, Ian R. Jenkins, Heng Zhang