公开(公告)号：US20240345540A1

公开(公告)日：2024-10-17

申请号：US18443008

申请日：2024-02-15

申请人： A9.com, Inc.

发明人： Arkady Bablumyan

IPC分类号： G03H1/02 ,  G02B5/32 ,  G03H1/04

CPC分类号： G03H1/0248 ,  G02B5/32 ,  G03H1/0408

摘要： The present invention features VHOEs with expanded acceptance angle ranges as well as various systems and methods for fabricating VHOEs with expanded acceptance angle ranges. The VHOE with expanded acceptance angle range may include two or more individual Bragg gratings. In preferred embodiments, the two or more individual Bragg gratings have the same diffraction geometry but with shifted Bragg conditions. Having the same diffraction geometry means when light is incident on the VHOE including two or more individual Bragg gratings, the diffracted light from each of the Bragg gratings is co-linear or overlapping with the diffracted light from the other Bragg gratings. The Bragg condition for each of the Bragg gratings are shifted with respect to each neighboring Bragg grating by an amount up to the acceptance angle range of each individual Bragg grating.

公开(公告)号：US12106333B2

公开(公告)日：2024-10-01

申请号：US18200806

申请日：2023-05-23

申请人： A9.com, Inc.

发明人： Douglas Ryan Gray ,  Arnab Sanat Kumar Dhua ,  Xiaofan Lin ,  Zhijiang Mark Lu

IPC分类号： G06Q30/00 ,  G06F40/14 ,  G06Q30/0241

CPC分类号： G06Q30/0277 ,  G06F40/14

摘要： A computing device can obtain data describing at least one document, the at least one document referencing at least one media object, wherein a portion of the at least one media object includes one or more characters. The computing device can obtain data describing the one or more characters in the at least one media object in the at least one document. The computing device can generate an updated copy of the at least one document that includes the data describing the one or more characters in the at least one media object. The computing device can present, on a display screen of the computing device and through an interface, the updated copy of the at least one document, wherein the one or more characters in the at least one media object are able to be selected or searched.

公开(公告)号：US11922575B2

公开(公告)日：2024-03-05

申请号：US17200400

申请日：2021-03-12

申请人： A9.com, Inc.

发明人： Himanshu Arora ,  Divyansh Agarwal ,  Arnab Dhua ,  Chun Kai Wang

IPC分类号： G06T17/20 ,  G06T7/55

CPC分类号： G06T17/20 ,  G06T7/55 ,  G06T2200/08 ,  G06T2207/10028

摘要： Approaches described and suggested herein relate to generating three-dimensional representations of objects to be used to render virtual reality and augmented reality effects on personal devices such as smartphones and personal computers, for example. An initial surface mesh of an object is obtained. A plurality of silhouette masks of the object taken from a plurality of viewpoints is also obtained. A plurality of depth maps are generated from the initial surface mesh. Specifically, the plurality of depth maps are taken from the same plurality of viewpoints from which the silhouette images are taken. A volume including the object is discretized into a plurality of voxels. Each voxel is then determined to be either inside the object or outside of the object based on the silhouette masks and the depth data. A final mesh is then generated from the voxels that are determined to be inside the object.

公开(公告)号：US20230367818A1

公开(公告)日：2023-11-16

申请号：US17663638

申请日：2022-05-16

申请人： A9.com, Inc.

发明人： Cuize Han ,  Parth Gupta ,  Xu Xu ,  Pablo Castells

IPC分类号： G06F16/903 ,  G06N20/00

CPC分类号： G06F16/90335 ,  G06N20/00

摘要： System and methods are provided that can address cold-start problems in database keyword searches. The search system generates machine-learned values for new item and queries based on historical signals for already existing item and queries. The values are used as input in a ranking model to rank search results for a user query. The initial values for the new item query pairs predict user engagement with the new item query pairs based on historical data for existing item query pairs and increase the visibility of new items to accumulate user interaction data for the new items. After additional user interactions are received, the values are updated using a Bayesian formula.

公开(公告)号：US11704318B1

公开(公告)日：2023-07-18

申请号：US16900592

申请日：2020-06-12

申请人： A9.Com, Inc.

发明人： Iman Keivanloo ,  Trishul Amit Madhukar Chilimbi ,  Narayanan Sadagopan ,  Choon Hui Teo ,  Santosh Rajagopalan ,  Hyokun Yun ,  Vishwanathan Swaminathan ,  Sankalp Nayak

IPC分类号： G06F16/2455 ,  G06F16/248 ,  G06Q30/06 ,  G06N20/00

CPC分类号： G06F16/24554 ,  G06F16/248 ,  G06N20/00 ,  G06Q30/0603 ,  G06Q30/0627

摘要： Devices and techniques are generally described for search using a micro-partitioned catalog. In some examples, a search system can determine a plurality of items in an online catalog. The search system can generate a similarity graph based on vector representations of the plurality of items and determine an item as a representative item for a cluster of items. The search system can receive a query and determine the cluster of items as a candidate cluster based on a comparison between the query and the representative item. The search system can determine a candidate item of the cluster of items based on a comparison between the query and the cluster of items.

公开(公告)号：US11699174B2

公开(公告)日：2023-07-11

申请号：US17170010

申请日：2021-02-08

申请人： A9.com, Inc.

发明人： Douglas Ryan Gray ,  Arnab Sanat Kumar Dhua ,  Xiaofan Lin ,  Zhijiang Mark Lu

IPC分类号： G06Q30/00 ,  G06Q30/0241 ,  G06F40/14

CPC分类号： G06Q30/0277 ,  G06F40/14

摘要： A computing device can obtain data describing at least one document, the at least one document referencing at least one media object, wherein a portion of the at least one media object includes one or more characters. The computing device can obtain data describing the one or more characters in the at least one media object in the at least one document. The computing device can generate an updated copy of the at least one document that includes the data describing the one or more characters in the at least one media object. The computing device can present, on a display screen of the computing device and through an interface, the updated copy of the at least one document, wherein the one or more characters in the at least one media object are able to be selected or searched.

公开(公告)号：US11668935B2

公开(公告)日：2023-06-06

申请号：US16917368

申请日：2020-06-30

申请人： A9.com, Inc.

发明人： Arkady Bablumyan ,  Erfan Fard

IPC分类号： G02B27/01 ,  F21V8/00 ,  G02B5/32 ,  G02B27/00

CPC分类号： G02B27/0172 ,  G02B5/32 ,  G02B6/005 ,  G02B6/0026 ,  G02B27/0081 ,  G02B2027/0123 ,  G02B2027/0174

摘要： A waveguide image combiner is used to transmit a monochrome or full-color image in an augmented reality display. The combiner uses multiple stacked substrates and multiple pairs of incoupling and outcouping VHOEs to expand a first FOV and an image expander to expand the second or perpendicular FOV. This suitably provides an expanded FOV that offers a diagonal FOV≥50°, a horizontal FOV≥40 and a vertical FOV≥25°. The combiner also delivers a large horizontal eye box up to 20 mm and a vertical eye box of 10 mm while maintaining high light efficiency of the real scene (e.g. >80%). The system is able to use a light engine based on broadband (10 nm≤Δλ≤40 nm) LEDs and maintain a large horizontal field of view and high transmission of the real imagery. The approach resolves issues with current embodiments including astigmatism, image overlap, color balance, and small light engine pupils leading to reduced eye boxes.

公开(公告)号：US11551404B2

公开(公告)日：2023-01-10

申请号：US17357636

申请日：2021-06-24

申请人： A9.com, Inc.

发明人： Tomas Francisco Yago Vicente ,  Radek Grzeszcsuk ,  Arnab Sanat Kumar Dhua

IPC分类号： G06T15/04 ,  G06T15/20 ,  G06T1/60 ,  G06T17/20 ,  G06T17/05

摘要： Images of various views of objects can be captured. An object mesh structure can be created based at least in part on the object images. The object mesh structure represents the three-dimensional shape of the object and includes a mesh with mesh elements. The mesh elements are assigned views first from a subset of views to texture large contiguous portions of the object from relatively few views. Portions that are not textured from the subset views are textured using the full set of views, such that all mesh elements are assigned views. The views first assigned from the subset of views and the views then assigned from the full plurality of views can be packaged into a texture atlas. These texture atlas views can be packaged with mapping data to map the texture atlas views to their corresponding mesh elements. The texture atlas and the object mesh structure can be sent to a client device to render a representation of the object. The representation can be manipulated on the client device in an augmented reality setting.

公开(公告)号：US11545013B2

公开(公告)日：2023-01-03

申请号：US15794001

申请日：2017-10-26

申请人： A9.com, Inc.

发明人： James Siminoff

IPC分类号： G08B13/196 ,  H04N7/18

摘要： Customizable intrusion zones for audio/video (A/V) recording and communication devices in accordance with various embodiments of the present disclosure are provided. In one embodiment, a method for an A/V recording and communication device is provided, the method comprising displaying, on a display of the computing device, a user interface for creating and/or customizing at least one intrusion zone, wherein the at least one intrusion zone comprises at least one motion zone within a field of view of the A/V recording and communication device coupled with at least one conditional setting of the at least one motion zone, determining whether an input has been received to establish a new conditional setting, or to change a previous conditional setting, determining whether an input has been received to save the new conditional setting or to save the changed conditional setting, and saving the new conditional setting or the changed conditional setting.

公开(公告)号：US11301540B1

公开(公告)日：2022-04-12

申请号：US16351320

申请日：2019-03-12

申请人： A9.com, Inc.

发明人： Adrian Boteanu ,  Michael James Morris ,  Joshua Christian Snyder ,  Adam Kiezun ,  Gaurav Gupta ,  Shay Artzi

IPC分类号： G06F16/908 ,  G06F16/951 ,  G06F16/955 ,  G06F16/957 ,  G06F16/958 ,  G06F40/205 ,  G06N3/02 ,  G06N5/02 ,  G06Q30/06

摘要： Systems and methods are disclosed for refining the accuracy of network searches by supplementing existing keywords and key phrases in an e-commerce catalog or other database with aggregated and analyzed additional, external data. The internet or another network can be crawled for identifiers which point to entries in the catalog or other database, and, subject to third-party use restrictions, data and metadata can be extracted to enrich the existing keywords and key phrases. The extracted external content may be processed by machine learning techniques in order to find similar entries in the original catalog or database. Categorizing and indexing the entries further improves search recall, including clustering via processing word embeddings.