Samson J Timoner

US Patent:

20100321382, Dec 23, 2010

Filed:

Jun 17, 2010

Appl. No.:

12/818102

Inventors:

Kevin Amaratunga - Belmont MA, US
Samson Timoner - Cambridge MA, US
Rajeev J. Surati - Cambridge MA, US

Assignee:

SCALABLE DISPLAY TECHNOLOGIES, INC. - Cambridge MA

International Classification:

G06T 15/00
G09G 5/00

US Classification:

345419, 345 13

Abstract:

A method and system for improving display quality by injecting a portion of computer code into an existing compositor, using the portion of computer code to apply a mapping function to a first digital image, and forming a second digital image based upon the first digital image as adapted by applying the applied mapping function in the compositor. The second digital image may then be displayed to a viewer via one or more displays where each display forms a part of the displayed digital image. The result may be used for creation of blended or stereoscopic images. The mapping function may be also adapted for modification of geometry or correction of a characteristic (such as color, intensity, etc.) of the display system where such characteristic may be sensed using a detector. The portion of code may be injected into a graphics driver controlling hardware composition for a displayed digital image.

US Patent:

20120120372, May 17, 2012

Filed:

Nov 15, 2011

Appl. No.:

13/296864

Inventors:

Samson J. Timoner - Cambridge MA, US
Tyler M. Johnson - South Boston MA, US
Eugene Hsu - Cambridge MA, US
Rajeev J. Surati - Cambridge MA, US
Kevin Amaratunga - Belmont MA, US

Assignee:

Scalable Display Technologies, Inc. - Cambridge MA

International Classification:

G03B 21/14

US Classification:

353 31, 353121, 353 30

Abstract:

The invention provides a system and method that reduces the tediousness of the manual alignment process. Users select correspondences between projectors or components of a projector, to form a common coordinate. Using models of the display system, and projectors, the common coordinate system can be mapped quickly to the entire display. The process avoids a need to measure screen points, and allows the user to move significantly fewer points. Alternatively, the invention allows introduction of machine-vision style algorithms into manual calibration techniques to improve performance. This overcomes the tediousness of prior systems by introducing models of the display into the manual alignment process, allowing selection of a small number of points on each projector, and avoiding selection of precisely measured screen points. The system conversely finds correspondences between projectors, allowing mapping of the projectors into a common coordinate system, and quick warping of the coordinate system to the screen.

US Patent:

20120320042, Dec 20, 2012

Filed:

Jun 14, 2012

Appl. No.:

13/523852

Inventors:

Paul E. Green - Montreal, CA
Rajeev J. Surati - Cambridge MA, US
Kevin Amaratunga - Belmont MA, US
Samson J. Timoner - Cambridge MA, US

Assignee:

SCALABLE DISPLAY TECHNOLOGIES, INC. - Cambridge MA

International Classification:

G06T 15/00
G09G 5/00
G09G 5/10

US Classification:

345419, 345690, 345207

Abstract:

The invention provides a system and method that allows for the calibration of color and intensity in a display system in a manner that is practical for the user, and handling obscuring factors, giving the user the ability to make intelligent trade-offs, and making it possible to quickly and efficiently re-compute a correction. More generally, correction and adjustment of intensity and color non-uniformities, and using optical sensor feedback to detect and correct for those changes is contemplated. This includes, but is not limited to, showing very bright images and very dark images. This invention further provides methods for making a practical system for the user, including a method of calculating corrections, dealing with obscuring factors that can affect the calculation process, providing information to allow users to make decisions on how to make trade-offs on the quality factors of the display, and allowing fast re-calculation of intensity corrections when re-calibrating.

US Patent:

20130314552, Nov 28, 2013

Filed:

Apr 19, 2013

Appl. No.:

13/866241

Inventors:

Rajeev J. Surati - Cambridge MA, US
Kevin Amaratunga - Belmont MA, US
Samson J. Timoner - Cambridge MA, US

Assignee:

Scalable Display Technologies, Inc. - Cambridge MA

International Classification:

H04N 17/02

US Classification:

348189

Abstract:

This invention provides a calibration system and method for multi-unit display systems without a need for switching the system input resolution/configuration of the display system while calibrating. This serves to avoid carrying out a re-synchronization step. As such, this system and method allows for increases speed and reduced likelihood of failure. This system and method also corrects the display system by providing an arrangement that employs a minimum of required changes so as to avoid any changes that can consequently affect the output image of the display system. Calibration of the system of display units occurs free of any changes to the input resolution and this resolution is maintained in a manner that resists change unless specifically required. Moreover, this system and method enables a resolution for the overall system that differs from the sum of the input resolutions of the discrete, individual display units in the collection.

US Patent:

20080246781, Oct 9, 2008

Filed:

Mar 14, 2008

Appl. No.:

12/049267

Inventors:

Rajeev J. Surati - Cambridge MA, US
Samson Timoner - Cambridge MA, US
Kevin Amaratunga - Cambridge MA, US
Thomas F. Knight - Belmont MA, US

Assignee:

SCALABLE DISPLAY TECHNOLOGIES, INC. - Cambridge MA

International Classification:

G09G 5/10
G09G 5/02
H04N 5/57
H04N 5/58

US Classification:

345690, 345204, 345581, 348E0512

Abstract:

A display system and method created by adjusting the properties of one or more displays to obtain coarse control over display behavior, by using sensors to optimize display parameters and meet a quality target. The display may construct a display map by selectively driving the display and sensing the optical image created. The system reports on its status, and is able to predict when the system will no longer meet a quality target. The system and method may optimize a display system and keep it optimized over time. Operators of the display who require a minimum level of quality for the display system can be ensured that the display meets those requirements. And, they can be warned in advance as to when system maintenance can be necessary, when quality falls below targeted goals system and method provides for sending out methods of the quality of the system.

US Patent:

20200252590, Aug 6, 2020

Filed:

Dec 30, 2019

Appl. No.:

16/730100

Inventors:

- Cambridge MA, US
Samson J. Timoner - Cambridge MA, US
Kevin Amaratunga - Belmont MA, US

International Classification:

H04N 9/31
H04N 5/74

Abstract:

This invention provides an improved display system and method that is created by adjusting the properties of one or more displays to obtain coarse control over display behavior, by using sensors to optimize display parameters. The display is further improved by constructing a display map by selectively driving the display and sensing the optical image created. Furthermore, the sensors are used to ensure that the resulting optimized display meets target quality measurements over time, potentially taking into account ambient conditions. The system reports on its status, and is able to predict when the system will no longer meet a quality target. The system and method is able to optimize a display system and keep it optimized over time. Individual displays with the display system can have operating points that are matched to each other. Corrections to the input image signal to deliver improved display system performance can be minimized, and therefore, the unwanted artifacts of those changes can be minimized. If the displays drift over time, those operating points can be updated. If ambient conditions change, and new operating points are desired, the new operating points can be automatically selected. Operators of the display who require a minimum level of quality for the display system (e.g. a minimum intensity level) can be ensured that the display meets those requirements. And, they can be warned in advance as to when system maintenance can be necessary, when quality falls below targeted goals system and method provides for sending out methods of the quality of the system such an in an e-mail, perhaps in the form of graphs. Or, the system in method allows for prediction of when quality targets will not be met. Prediction is useful for a display system operator who needs to know when to perform maintenance, such as changing a light bulb (light source) in a projector.

US Patent:

20180232192, Aug 16, 2018

Filed:

Feb 14, 2017

Appl. No.:

15/432248

Inventors:

Samson Timoner - Cambridge MA, US
Wai Kit Lau - Chestnut Hill MA, US

International Classification:

G06F 3/14
G06T 3/00
G09G 3/00
G09G 3/20
G09G 5/12
G09G 5/391
H04N 17/02
H04N 9/31

Abstract:

The invention includes a method and system to visually capture, enhance, broadcast, annotate, index and store information written or drawn on physical surfaces. A user points a camera at a whiteboard and broadcasts the video stream so that other users can easily receive and collaborate remotely in multi-user fashion. The system enhances the video by leveraging the nature of video as a multitude of related frames over time and by leveraging the nature of writing, and/or the nature of the written surface in the video stream. Annotation tools, and real-time data sharing such as mouse-location facilitate multi-user collaboration. Also facilitating collaboration are archival functionalities that make it possible to review previous work, and search through older writings and annotations.The system addresses many writing surfaces including whiteboards, blackboards, glass, paper and other tangible surfaces. The nature of each surface is different—that is they have distinct properties and the algorithms can be tuned for each such surface. The writing on the surface and/or the surface is enhanced to improve the legibility of the writing. The algorithms within can also be made to adapt to available computational and bandwidth resources.The video is sometimes distributed by relaying the video through one or more central computers. It can be sent peer-to-peer, sometimes relayed from person to person. Depending on the number of people on the call, and the bandwidth and processing power available, different options may be preferable.The software system allows any camera pointed at a physical writing surface to perform all the functionalities above, so that users can easily collaborate remotely in a full-duplex, multi-party fashion. The broadcasting user will come to a website, which will access his web camera and broadcast the video stream to other users, who will watch on a website.

US Patent:

20170127029, May 4, 2017

Filed:

Nov 14, 2016

Appl. No.:

15/351076

Inventors:

- Cambridge MA, US
Rajeev J. Surati - Cambridge MA, US
Kevin Amaratunga - Belmont MA, US
Samson J. Timoner - Cambridge MA, US

International Classification:

H04N 9/31
G09G 3/00
G09G 3/20
G06T 7/90

Abstract:

The invention provides a system and method that allows for the calibration of color and intensity in a display system in a manner that is practical for the user, and handling obscuring factors, giving the user the ability to make intelligent trade-offs, and making it possible to quickly and efficiently re-compute a correction. More generally, correction and adjustment of intensity and color non-uniformities, and using optical sensor feedback to detect and correct for those changes is contemplated. This includes, but is not limited to, showing very bright images and very dark images. This invention further provides methods for making a practical system for the user, including a method of calculating corrections, dealing with obscuring factors that can affect the calculation process, providing information to allow users to make decisions on how to make trade-offs on the quality factors of the display, and allowing fast re-calculation of intensity corrections when re-calibrating.