William D Amidei

US Patent:

20020122213, Sep 5, 2002

Filed:

Mar 1, 2001

Appl. No.:

09/797268

Inventors:

Edward Hill - Carditt CA, US
Craig Johnson - San Diego CA, US
Carolyn Harris - Escondido CA, US
William Amidei - Carlsbad CA, US

International Classification:

H04N001/04

US Classification:

358/474000

Abstract:

A circuit connected to a linear array of photosensors generates image data representative of information printed on a document and adjusts the gains applied to the outputs of selected ones of the photosensors to eliminate streaks in the image data otherwise due to the selected photosensors imaging debris on the optical reference surface. The circuit determines which photosensors have low output values during a factory scan of a clean white reference surface. During a subsequent user environment calibration scan, low output values are adjusted to the average of their neighbors, but only for locations not identified as having low outputs during the factory scan. The circuit additionally performs a PRNU compensation and further adjusts the gains applied to each of the outputs of the photosensors so that all of their output values have a substantially uniform value.

US Patent:

20130007297, Jan 3, 2013

Filed:

Dec 29, 2011

Appl. No.:

13/339992

Inventors:

Kourosh Soroushian - San Diego CA, US
Auke van der Schaar - Los Angeles CA, US
Jason Braness - San Diego CA, US
William David Amidei - San Diego CA, US

Assignee:

DIVX, LLC - Santa Clara CA

International Classification:

G06F 15/16

US Classification:

709231

Abstract:

Multiphase adaptive bitrate streaming systems and methods in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes a processor configured to request portions of files. In addition, the processor streams encoded media in a first operational phase utilizing a first set of stream switching conditions. When at least one phase transition criterion is satisfied, the client application configures the processor to transition to a second operational phase utilizing a second set of stream switching conditions.

US Patent:

20130054960, Feb 28, 2013

Filed:

Dec 29, 2011

Appl. No.:

13/340594

Inventors:

Eric William Grab - San Diego CA, US
Kourosh Soroushian - San Diego CA, US
Tung Lin - San Diego CA, US
Francis Yee-Dug Chan - San Diego CA, US
Evan Wallin - San Diego CA, US
William David Amidei - San Diego CA, US

Assignee:

DIVX, LLC - Santa Clara CA

International Classification:

G06F 21/00
H04L 29/06

US Classification:

713155, 726 17, 713185, 726 2

Abstract:

Systems and methods for application identification in accordance with embodiments of the invention are disclosed. In one embodiment, a user device includes a processor and memory configured to store an application, a session manager, an application identifier, and at least one shared library, and the processor is configured by the session manager to communicate the application identifier and the application identifier data to an authentication server and permit the execution of the application in response to authentication of the application by the authentication server.

US Patent:

20220408132, Dec 22, 2022

Filed:

Feb 4, 2022

Appl. No.:

17/650057

Inventors:

- San Diego CA, US
William David Amidei - San Diego CA, US
Mayur Srinivasan - San Diego CA, US

Assignee:

DIVX, LLC - San Diego CA

International Classification:

H04N 21/2347
H04N 21/235
H04N 21/4405
H04N 21/435
H04L 9/40

Abstract:

Systems and methods for partial frame encryption in accordance with embodiments of the invention are disclosed. In one embodiment, the method receives a video bitstream that includes several frames, each frame including several independently encoded compression units within the frame, encrypts a portion of each of several compression units in several frames, and generates an output bitstream that includes the several independently encoded compression units including the encrypted portions of the compression units.

US Patent:

20220263807, Aug 18, 2022

Filed:

Nov 29, 2021

Appl. No.:

17/456842

Inventors:

- San Diego CA, US
Kourosh Soroushian - San Diego CA, US
Tung Lin - San Diego CA, US
Francis Yee-Dug Chan - San Diego CA, US
Evan Wallin - San Diego CA, US
William David Amidei - San Diego CA, US

Assignee:

DIVX, LLC - San Diego CA

International Classification:

H04L 9/40
H04L 67/60
G06F 21/10
G06F 21/12

Abstract:

Systems and methods for application identification in accordance with embodiments of the invention are disclosed. In one embodiment, a user device includes a processor and memory configured to store an application, a session manager, an application identifier, and at least one shared library, and the processor is configured by the session manager to communicate the application identifier and the application identifier data to an authentication server and permit the execution of the application in response to authentication of the application by the authentication server.

US Patent:

20190319935, Oct 17, 2019

Filed:

Jun 28, 2019

Appl. No.:

16/457255

Inventors:

- San Diego CA, US
Kourosh Soroushian - San Diego CA, US
Tung Lin - San Diego CA, US
Francis Yee-Dug Chan - San Diego CA, US
Evan Wallin - San Diego CA, US
William David Amidei - San Diego CA, US

Assignee:

DIVX, LLC - San Diego CA

International Classification:

H04L 29/06
H04L 29/08
G06F 21/12
G06F 21/10

Abstract:

Systems and methods for application identification in accordance with embodiments of the invention are disclosed. In one embodiment, a user device includes a processor and memory configured to store an application, a session manager, an application identifier, and at least one shared library, and the processor is configured by the session manager to communicate the application identifier and the application identifier data to an authentication server and permit the execution of the application in response to authentication of the application by the authentication server.

US Patent:

20190238910, Aug 1, 2019

Filed:

Jan 31, 2019

Appl. No.:

16/264355

Inventors:

- San Diego CA, US
William David Amidei - San Diego CA, US

Assignee:

DIVX, LLC - San Diego CA

International Classification:

H04N 21/242
H04N 21/2387
H04N 21/6332
H04N 21/262
H04N 21/43
H04N 21/8547

Abstract:

Systems and methods for synchronizing the playback of streamed content on multiple playback devices is disclosed. The systems and methods include receiving time information based on a network time source in the playback devices connected to a defined network. The playback clock in each playback device is set based upon the time information. A first playback device then generates presentation time information including a start time for playback and broadcast the presentation time information to the other playback device over the defined network. The playback devices use the presentation time information to adjust the presentation time stamps of the frames of the media content in the stream.

US Patent:

20170374039, Dec 28, 2017

Filed:

Aug 21, 2017

Appl. No.:

15/682453

Inventors:

- San Diego CA, US
Kourosh Soroushian - San Diego CA, US
Tung Lin - San Diego CA, US
Francis Yee-Dug Chan - San Diego CA, US
Evan Wallin - San Diego CA, US
William David Amidei - San Diego CA, US

Assignee:

Sonic IP, Inc. - San Diego CA

International Classification:

H04L 29/06
G06F 21/10
G06F 21/12
H04L 29/08

Abstract:

Systems and methods for application identification in accordance with embodiments of the invention are disclosed. In one embodiment, a user device includes a processor and memory configured to store an application, a session manager, an application identifier, and at least one shared library, and the processor is configured by the session manager to communicate the application identifier and the application identifier data to an authentication server and permit the execution of the application in response to authentication of the application by the authentication server.