Roi Shmuel Sasson

US Patent:

7933294, Apr 26, 2011

Filed:

Dec 10, 2007

Appl. No.:

11/953398

Inventors:

Roi Sasson - New York NY, US
Alexandros Eleftheriadis - Tenafly NJ, US
Ofer Shapiro - Fair Lawn NJ, US

Assignee:

Vidyo, Inc. - Dallas TX

International Classification:

H04J 3/24

US Classification:

370474, 370536, 37524005, 709231

Abstract:

Systems and methods for communication of scaleable-coded audiovisual signals over multiple TCP/IP connections are provided. The sender schedules and prioritizes transmission of individual scalable-coded data packets over the plurality of TCP connections according to their relative importance in the scalable coding structure for signal reconstruction quality and according to receiver feedback. Low-latency packet delivery over the multiple TCP/IP connections is maintained by avoiding transmission or retransmission of packets that are less important for reconstructed media quality.

US Patent:

7948886, May 24, 2011

Filed:

Mar 2, 2010

Appl. No.:

12/715845

Inventors:

Roi Sasson - New York NY, US
Alexandros Eleftheriadis - Tenafly NJ, US

Assignee:

Vidyo, Inc. - Dallas TX

International Classification:

H04B 1/44
G06F 11/00
H04L 1/00
H04L 12/26

US Classification:

370231, 370232, 370236, 370282

Abstract:

A transmission bit rate control mechanism for a packet-based communication system in which sender transmission bit rates can vary over time is provided. The transmission bit rate mechanism includes a receiver recording mechanism, which receives transmission time information, computes and records statistical parameters of packets received from a sender; and a receiver processing mechanism, which selectively computes a new transmission bit rate using the recorded statistical parameters, and communicates a new transmission bit rate to the sender.

US Patent:

20070206673, Sep 6, 2007

Filed:

Dec 8, 2006

Appl. No.:

11/608776

Inventors:

STEPHEN CIPOLLI - Nanuet NY, US
Reha Civanlar - San Francisco CA, US
Alexandros Eleftheriadis - New York NY, US
Jonathan Lennox - Jersey City NJ, US
Roi Sasson - New York NY, US
Manoj Saxena - Monroe Township NJ, US
Ofer Shapiro - Fair Lawn NJ, US

International Classification:

H04B 1/66
H04N 7/12

US Classification:

375240100, 375240260

Abstract:

Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.

US Patent:

20080117930, May 22, 2008

Filed:

Nov 1, 2007

Appl. No.:

11/933865

Inventors:

Roi Sasson - New York NY, US
Alexandros Eleftheriadis - Tenafly NJ, US

International Classification:

H04J 3/22

US Classification:

370465

Abstract:

A transmission bit rate control mechanism for a packet-based communication system in which sender transmission bit rates can vary over time is provided. The transmission bit rate mechanism includes a receiver recording mechanism, which receives transmission time information, computes and records statistical parameters of packets received from a sender; and a receiver processing mechanism, which selectively computes a new transmission bit rate using the recorded statistical parameters, and communicates a new transmission bit rate to the sender.

US Patent:

20110280257, Nov 17, 2011

Filed:

Mar 21, 2011

Appl. No.:

13/052741

Inventors:

Roi Sasson - New York NY, US
Alexandros Eleftheriadis - Tenafly NJ, US
Ofer Shapiro - Fair Lawn NJ, US

International Classification:

H04L 12/28

US Classification:

370431

Abstract:

Systems and methods for communication of scaleable-coded audiovisual signals over multiple TCP/IP connections are provided. The sender schedules and prioritizes transmission of individual scalable-coded data packets over the plurality of TCP connections according to their relative importance in the scalable coding structure for signal reconstruction quality and according to receiver feedback. Low-latency packet delivery over the multiple TCP/IP connections is maintained by avoiding transmission or retransmission of packets that are less important for reconstructed media quality.

US Patent:

20110292161, Dec 1, 2011

Filed:

May 25, 2011

Appl. No.:

13/115960

Inventors:

Ran Sharon - Tenafly NJ, US
Roi Sasson - New York NY, US
Jonathan Steer - Nashua NH, US
Alexandros Eleftheriadis - Tenafly NJ, US

Assignee:

VIDYO, INC. - Dallas TX

International Classification:

H04N 7/15

US Classification:

348 1407, 348E07083

Abstract:

Systems and methods for performing videoconferencing using endpoints with multiple monitors and multiple cameras are disclosed herein. These endpoints are comprised of, where each node is comprised of a control unit and one or more node units, each connected to at least one monitor, camera, speaker, or microphone. Video is encoded using scalable coding, and endpoints are connected to each other over a network using an SVCS. Algorithms are described for layout management, tagging of individual streams, and use of tags for dynamic and prioritized layout management.

US Patent:

20120069135, Mar 22, 2012

Filed:

Sep 21, 2011

Appl. No.:

13/238624

Inventors:

Stephen Cipolli - Nanuet NY, US
Reha Civanlar - Istanbul, TR
Alexandros Eleftheriadis - New York NY, US
Jonathan Lennox - Jersey City NJ, US
Roi Sasson - New York NY, US
Manoj Sexena - Monroe Township NJ, US
Ofer Shapiro - Fair Lawn NJ, US

International Classification:

H04N 7/15
H04N 7/26
H04N 7/06

US Classification:

348 1408, 348E07042, 348E07083, 375E07126

Abstract:

Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.

US Patent:

20120072499, Mar 22, 2012

Filed:

Sep 20, 2011

Appl. No.:

13/237903

Inventors:

Stephen Cipolli - Nanuet NJ, US
Jonathan Lennox - Jersey City NJ, US
Sreeni Nair - East Brunswick NJ, US
Balasubramanian Pitchandi - Hackensack NJ, US
Roi Sasson - New York NY, US
Manoj Saxena - Monroe Township NJ, US

Assignee:

VIDYO, INC. - Dallas TX

International Classification:

G06F 15/16

US Classification:

709204

Abstract:

Systems and methods for the control and management of multipoint conferences are disclosed herein, where endpoints can selectively and individually manage the streams that will be transmitted to them. Techniques are described that allow a transmitting endpoint to collect information from other receiving endpoints, or aggregated such information from servers, and process them into a single set of operating parameters that it then uses for its operation. Algorithms are described for performing conference-level show, on-demand show, show parameter aggregation and propagation, propagation of notifications. Parameters identified for describing sources in show requests include bit rate, window size, pixel rate, and frames per second.