公开(公告)号：US09191664B2

公开(公告)日：2015-11-17

申请号：US14077139

申请日：2013-11-11

Applicant: Citrix Systems, Inc.

Inventor： Miguel A. Melnyk ,  Nicholas J. Stavrakos ,  Fabian Breg ,  Andrew Penner

IPC: H04N19/152 ,  H04L12/801 ,  H04L12/853 ,  H04L12/825 ,  H04L12/841 ,  H04L12/823 ,  H04N21/234 ,  H04N21/2343 ,  H04N21/24 ,  H04N21/2662 ,  H04N21/44 ,  H04N21/6377 ,  H04N21/6437 ,  H04N21/658 ,  H04N19/196 ,  H04N19/115

CPC classification number: H04N19/00193 ,  H04L47/10 ,  H04L47/2416 ,  H04L47/25 ,  H04L47/263 ,  H04L47/283 ,  H04L47/32 ,  H04N19/115 ,  H04N19/152 ,  H04N19/197 ,  H04N21/23406 ,  H04N21/2343 ,  H04N21/234381 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/44004 ,  H04N21/6377 ,  H04N21/6437 ,  H04N21/658 ,  H04N21/6582

Abstract: A method including receiving a receiver report from a terminal; estimating one or more network conditions of a media network based at least in part on the receiver report; determining an optimal session bitrate based on the estimated one or more network conditions; and providing media data to the terminal based on the optimal session bitrate.

Abstract translation: 一种方法，包括从终端接收接收机报告; 至少部分地基于所述接收机报告来估计媒体网络的一个或多个网络条件; 基于估计的一个或多个网络条件确定最佳会话比特率; 以及基于最佳会话比特率向终端提供媒体数据。

公开(公告)号：US11792232B2

公开(公告)日：2023-10-17

申请号：US17713678

申请日：2022-04-05

Applicant: Citrix Systems, Inc.

Inventor： Andrew Penner ,  Tushar Kanekar

IPC: H04L29/06 ,  H04L9/40 ,  G06F9/455 ,  H04L67/02 ,  H04L67/141 ,  H04L67/01

CPC classification number: H04L63/20 ,  H04L63/166 ,  H04L63/168 ,  G06F9/45533 ,  H04L67/01 ,  H04L67/02 ,  H04L67/141

Abstract: Systems and methods for applying an application layer policy to a transport layer security request are provided. A device, intermediary to one or more clients and one or more servers, can receive a transport layer security (TLS) request to establish a TLS connection between a client of the one or more clients and a server of the one or more servers. The TLS request can include an application layer request to a resource of the server. The device can apply an application layer policy to the application layer request of the TLS request. The device can determine, responsive to applying the application layer policy, whether to one of accept or reject at least the application layer request of the TLS request.

公开(公告)号：US20210243227A1

公开(公告)日：2021-08-05

申请号：US17236233

申请日：2021-04-21

Applicant: Citrix Systems, Inc.

Inventor： Andrew Penner ,  Tushar Kanekar

IPC: H04L29/06 ,  H04L29/08

Abstract: Systems and methods for detecting attacks using a handshake request are provided. A plurality of devices can receive a plurality of handshake requests to establish TLS connections that include a respective application request. At least one of the plurality of handshake requests can include a first application request. The plurality of devices can record each of the respective application requests to a registry of application requests. A first device of the plurality of devices can receive a subsequent handshake request to establish a subsequent TLS connection that includes the first application request. The first device can query, prior to accepting the first application request, the registry for the first application request. The first device can determine whether to accept or reject the first application request responsive to identifying from the query that the first application request has not been or has been recorded in the registry.

公开(公告)号：US20180131937A1

公开(公告)日：2018-05-10

申请号：US15864843

申请日：2018-01-08

Applicant: Citrix Systems, Inc.

Inventor： Miguel Melnyk ,  Andrew Penner ,  Jeremy Tidemann

IPC: H04N19/124 ,  H04N19/40 ,  H04N19/154 ,  H04N19/172 ,  H04N19/46 ,  H04N19/152

CPC classification number: H04N19/124 ,  H04N19/152 ,  H04N19/154 ,  H04N19/172 ,  H04N19/40 ,  H04N19/46

Abstract: A computer-implemented method includes receiving an encoded video frame, decompressing the received encoded video frame, extracting a first quantization parameter (QP) from the decompressed video frame, and acquiring a delta QP based on the first QP. The method also includes acquiring a second QP based on the delta QP and the first QP, compressing the decompressed video frame based on the second QP, and providing the compressed video frame. The first QP corresponds to quantization settings originally used for compressing the encoded video frame. And the second QP corresponds to quantization settings for compressing the decompressed video frame.

公开(公告)号：US20220232043A1

公开(公告)日：2022-07-21

申请号：US17713678

申请日：2022-04-05

Applicant: Citrix Systems, Inc.

Inventor： Andrew Penner ,  Tushar Kanekar

IPC: H04L9/40

Abstract: Systems and methods for applying an application layer policy to a transport layer security request are provided. A device, intermediary to one or more clients and one or more servers, can receive a transport layer security (TLS) request to establish a TLS connection between a client of the one or more clients and a server of the one or more servers. The TLS request can include an application layer request to a resource of the server. The device can apply an application layer policy to the application layer request of the TLS request. The device can determine, responsive to applying the application layer policy, whether to one of accept or reject at least the application layer request of the TLS request.

公开(公告)号：US11336693B2

公开(公告)日：2022-05-17

申请号：US16203120

申请日：2018-11-28

Applicant: Citrix Systems, Inc.

Inventor： Andrew Penner ,  Tushar Kanekar

IPC: H04L29/06 ,  G06F9/455 ,  H04L67/02 ,  H04L67/141 ,  H04L67/01

Abstract: Systems and methods for applying an application layer policy to a transport layer security request are provided. A device, intermediary to one or more clients and one or more servers, can receive a transport layer security (TLS) request to establish a TLS connection between a client of the one or more clients and a server of the one or more servers. The TLS request can include an application layer request to a resource of the server. The device can apply an application layer policy to the application layer request of the TLS request. The device can determine, responsive to applying the application layer policy, whether to one of accept or reject at least the application layer request of the TLS request.

公开(公告)号：US20200169584A1

公开(公告)日：2020-05-28

申请号：US16203120

申请日：2018-11-28

Applicant: Citrix Systems, Inc.

Inventor： Andrew Penner ,  Tushar Kanekar

IPC: H04L29/06 ,  H04L29/08 ,  G06F9/455

Abstract: Systems and methods for applying an application layer policy to a transport layer security request are provided. A device, intermediary to one or more clients and one or more servers, can receive a transport layer security (TLS) request to establish a TLS connection between a client of the one or more clients and a server of the one or more servers. The TLS request can include an application layer request to a resource of the server. The device can apply an application layer policy to the application layer request of the TLS request. The device can determine, responsive to applying the application layer policy, whether to one of accept or reject at least the application layer request of the TLS request.

公开(公告)号：US10123015B2

公开(公告)日：2018-11-06

申请号：US15482931

申请日：2017-04-10

Applicant: Citrix Systems, Inc.

Inventor： Jeremy Tidemann ,  Andrew Penner

IPC: H04N19/124 ,  H04N19/115 ,  H04N19/176 ,  H04N19/136 ,  H04N19/146 ,  H04N19/154 ,  H04N19/40 ,  H04N19/172 ,  H04N19/182 ,  H04N19/184

Abstract: A method of optimizing an encoded video stream comprising one or more video frames, each video frame comprising a plurality of macroblocks, each macroblock comprising a plurality of pixels. The method includes receiving an encoded macroblock, decoding the encoded macroblock, and extracting a first quantization parameter. The first quantization parameter corresponds to quantization settings originally used for compressing the encoded macroblock. The method also includes computing a second quantization parameter based at least in part on the first quantization parameter, re-encoding the decoded macroblock based on the second quantization parameter, and providing the re-encoded macroblock.

公开(公告)号：US12192237B2

公开(公告)日：2025-01-07

申请号：US17236233

申请日：2021-04-21

Applicant: Citrix Systems, Inc.

Inventor： Andrew Penner ,  Tushar Kanekar

IPC: H04L9/40 ,  H04L67/63

Abstract: Systems and methods for detecting attacks using a handshake request are provided. A plurality of devices can receive a plurality of handshake requests to establish TLS connections that include a respective application request. At least one of the plurality of handshake requests can include a first application request. The plurality of devices can record each of the respective application requests to a registry of application requests. A first device of the plurality of devices can receive a subsequent handshake request to establish a subsequent TLS connection that includes the first application request. The first device can query, prior to accepting the first application request, the registry for the first application request. The first device can determine whether to accept or reject the first application request responsive to identifying from the query that the first application request has not been or has been recorded in the registry.

公开(公告)号：US20200177630A1

公开(公告)日：2020-06-04

申请号：US16207423

申请日：2018-12-03

Applicant: Citrix Systems, Inc.

Inventor： Andrew Penner ,  Tushar Kanekar

IPC: H04L29/06 ,  H04L29/08

Abstract: Systems and methods for detecting attacks using a handshake request are provided. A plurality of devices can receive a plurality of handshake requests to establish TLS connections that include a respective application request. At least one of the plurality of handshake requests can include a first application request. The plurality of devices can record each of the respective application requests to a registry of application requests. A first device of the plurality of devices can receive a subsequent handshake request to establish a subsequent TLS connection that includes the first application request. The first device can query, prior to accepting the first application request, the registry for the first application request. The first device can determine whether to accept or reject the first application request responsive to identifying from the query that the first application request has not been or has been recorded in the registry.