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公开(公告)号：US12113989B2
公开(公告)日：2024-10-08
申请号：US18347356
申请日：2023-07-05
Applicant: Dropbox, Inc.
Inventor： Daniel Horn , Ken Elkabany , Keith Winstein
IPC: H04N19/176 , H04N19/124 , H04N19/13 , H04N19/14 , H04N19/18 , H04N19/40 , H04N19/48 , H04N19/593 , H04N19/625 , H04N19/91 , H04N19/132 , H04N19/42 , H04N19/436 , H04N19/46
CPC classification number: H04N19/176 , H04N19/124 , H04N19/13 , H04N19/14 , H04N19/18 , H04N19/40 , H04N19/48 , H04N19/593 , H04N19/625 , H04N19/91 , H04N19/132 , H04N19/42 , H04N19/436 , H04N19/46
Abstract: Techniques for lossless compression of a digital image using prior image context.
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公开(公告)号：US20230345014A1
公开(公告)日：2023-10-26
申请号：US18347356
申请日：2023-07-05
Applicant: Dropbox, Inc.
Inventor： Daniel Horn , Ken Elkabany , Keith Winstein
IPC: H04N19/176 , H04N19/625 , H04N19/13 , H04N19/593 , H04N19/91 , H04N19/14 , H04N19/18 , H04N19/48 , H04N19/40 , H04N19/124
CPC classification number: H04N19/176 , H04N19/625 , H04N19/13 , H04N19/593 , H04N19/91 , H04N19/14 , H04N19/18 , H04N19/48 , H04N19/40 , H04N19/124 , H04N19/46
Abstract: Techniques for lossless compression of a digital image using prior image context.
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公开(公告)号：US11716476B2
公开(公告)日：2023-08-01
申请号：US17663983
申请日：2022-05-18
Applicant: Dropbox, Inc.
Inventor： Daniel Horn , Ken Elkabany , Keith Winstein
IPC: G06T9/00 , H04N19/176 , H04N19/625 , H04N19/13 , H04N19/593 , H04N19/91 , H04N19/14 , H04N19/18 , H04N19/48 , H04N19/40 , H04N19/124 , H04N19/46 , H04N19/132 , H04N19/42 , H04N19/436
CPC classification number: H04N19/176 , H04N19/124 , H04N19/13 , H04N19/14 , H04N19/18 , H04N19/40 , H04N19/48 , H04N19/593 , H04N19/625 , H04N19/91 , H04N19/132 , H04N19/42 , H04N19/436 , H04N19/46
Abstract: Techniques for lossless compression of a digital image using prior image context.
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公开(公告)号：US20190121875A1
公开(公告)日：2019-04-25
申请号：US15789959
申请日：2017-10-21
Applicant: Dropbox, Inc.
Inventor： Boyang Niu , Ken Elkabany
CPC classification number: G06F16/176 , G06F21/62 , G06F21/6209 , G06F21/6218 , G06F21/6272 , H04L65/403 , H04L67/06 , H04L67/306 , H04W4/10
Abstract: A content management system and a collaborative content system implement interoperability features that allow a user to perform certain interactions with a collaborative content item via the interface of the content management system. For instance, the collaborative content system can outsource access permissions for the collaborative content item to the content management system. When the collaborative content system receives a user's request to access the collaborative content item, the collaborative content system requests permissions data for the collaborative content item from the content management system and then determines based on the permissions data whether to grant access to the user. The content management system can also outsource the account storage capacity for the collaborative content item to the collaborative content system. As a result, a collaborative content item that is stored in association with a user account on the content management system is not counted against the user account's storage capacity.
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公开(公告)号：US20190098321A1
公开(公告)日：2019-03-28
申请号：US16205114
申请日：2018-11-29
Applicant: Dropbox, Inc.
Inventor： Daniel Horn , Ken Elkabany , Keith Winstein
IPC: H04N19/176 , H04N19/124 , H04N19/14 , H04N19/40 , H04N19/48 , H04N19/18 , H04N19/13 , H04N19/593 , H04N19/91 , H04N19/625 , H04N19/42 , H04N19/436 , H04N19/132 , H04N19/46
Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
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Patent Agency Ranking
公开(公告)号：US10701374B2
公开(公告)日：2020-06-30
申请号：US16205114
申请日：2018-11-29
Applicant: Dropbox, Inc.
Inventor： Daniel Horn , Ken Elkabany , Keith Winstein
IPC: G06K9/00 , H04N19/176 , H04N19/625 , H04N19/13 , H04N19/593 , H04N19/91 , H04N19/14 , H04N19/18 , H04N19/48 , H04N19/40 , H04N19/124 , H04N19/46 , H04N19/132 , H04N19/42 , H04N19/436
Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
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公开(公告)号：US10586066B2
公开(公告)日：2020-03-10
申请号：US15789958
申请日：2017-10-21
Applicant: Dropbox, Inc.
Inventor： Boyang Niu , Ken Elkabany
Abstract: A content management system and a collaborative content system implement interoperability features that allow a user to perform certain interactions with a collaborative content item via the interface of the content management system. For instance, the collaborative content system can outsource access permissions for the collaborative content item to the content management system. When the collaborative content system receives a user's request to access the collaborative content item, the collaborative content system requests permissions data for the collaborative content item from the content management system and then determines based on the permissions data whether to grant access to the user. The content management system can also outsource the account storage capacity for the collaborative content item to the collaborative content system. As a result, a collaborative content item that is stored in association with a user account on the content management system is not counted against the user account's storage capacity.
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公开(公告)号：US20190391959A1
公开(公告)日：2019-12-26
申请号：US16560898
申请日：2019-09-04
Applicant: Dropbox, Inc.
Inventor： Boyang Niu , Ken Elkabany
IPC: G06F16/176 , G06F21/62 , H04L29/08 , H04W4/10 , H04L29/06
Abstract: A content management system and a collaborative content system implement interoperability features that allow a user to perform certain interactions with a collaborative content item via the interface of the content management system. For instance, the collaborative content system can outsource access permissions for the collaborative content item to the content management system. When the collaborative content system receives a user's request to access the collaborative content item, the collaborative content system requests permissions data for the collaborative content item from the content management system and then determines based on the permissions data whether to grant access to the user. The content management system can also outsource the account storage capacity for the collaborative content item to the collaborative content system. As a result, a collaborative content item that is stored in association with a user account on the content management system is not counted against the user account's storage capacity.
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公开(公告)号：US20180146199A1
公开(公告)日：2018-05-24
申请号：US15822401
申请日：2017-11-27
Applicant: Dropbox, Inc.
Inventor： Daniel Horn , Ken Elkabany , Keith Winstein
IPC: H04N19/176 , H04N19/124 , H04N19/625
CPC classification number: H04N19/176 , H04N19/124 , H04N19/13 , H04N19/132 , H04N19/14 , H04N19/18 , H04N19/40 , H04N19/42 , H04N19/436 , H04N19/46 , H04N19/48 , H04N19/593 , H04N19/625 , H04N19/91
Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
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公开(公告)号：US09712830B1
公开(公告)日：2017-07-18
申请号：US15281604
申请日：2016-09-30
Applicant: Dropbox, Inc.
Inventor： Daniel Horn , Ken Elkabany , Keith Winstein
IPC: G06K9/36 , H04N19/176 , H04N19/124 , H04N19/625
CPC classification number: H04N19/176 , H04N19/124 , H04N19/13 , H04N19/132 , H04N19/14 , H04N19/18 , H04N19/40 , H04N19/42 , H04N19/436 , H04N19/46 , H04N19/48 , H04N19/593 , H04N19/625 , H04N19/91
Abstract: Techniques for image recompression. In one implementation, the techniques are implemented to recompress a baseline joint photographic experts group (JPEG) image with compression savings. The techniques replace the Huffman coding of baseline JPEG with an arithmetic coding that uses a sophisticated adaptive probability model. The arithmetic coding techniques avoid global operations such as global sorting that would prevent distributed and multithreaded decompression operations when recovering the original JPEG image from the recompressed image. At the same time, the techniques realize substantial compression savings relative to baseline JPEG, on average 23% compressing savings in some implementations.
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