Mark G Feldman

US Patent:

7002618, Feb 21, 2006

Filed:

May 31, 2002

Appl. No.:

10/160595

Inventors:

Lenny Lipton - Greenbrae CA, US
Mark H. Feldman - Walnut Creek CA, US

Assignee:

Stereographics Corporation - Beverly Hills CA

International Classification:

H04N 13/04

US Classification:

348 51

Abstract:

A stereoscopic media player is implemented by a software application loaded onto a PC having a DVD player and a video monitor interconnected therewith. The software application includes program instructions for mapping stereoscopic images stored in a side-by-side format on the DVD into an above-and-below format for display on the monitor.

US Patent:

7375886, May 20, 2008

Filed:

Apr 19, 2004

Appl. No.:

10/827871

Inventors:

Lenny Lipton - Greenbrae CA, US
Mark H. Feldman - Walnut Creek CA, US

Assignee:

Stereographics Corporation - Beverly Hills CA

International Classification:

G02B 27/22
H04N 9/47
H04N 13/04

US Classification:

359463, 359462, 348 59

Abstract:

A method and apparatus for optimizing viewing distance for a stereogram system. In a stereogram, an image is held in close juxtaposition with a lenticular screen. In the invention, a data store is used to store optimum pitch values for specified viewing distances. An interdigitation program then acts on the table values and creates a mapping of interdigitated views for each viewing distance. The user can then select or specify a desired viewing distance, and the optimum mapping of views is automatically chosen for display.

US Patent:

7570260, Aug 4, 2009

Filed:

Mar 24, 2006

Appl. No.:

11/388352

Inventors:

Robert Akka - Sausalito CA, US
Mark H. Feldman - Walnut Creek CA, US

Assignee:

Real D - Beverly Hills CA

International Classification:

G06T 15/00

US Classification:

345419, 382194, 382195, 382165

Abstract:

A method for creating a reduced sized view-map of an autostereoscopic source image is disclosed. The method comprises creating a mathematical model for mapping the autostereoscopic source image into a first view-map, mapping the autostereoscopic source image into the first view-map, wherein the first view-map comprises a source-view image value and a plurality of pixel locations comprising an origin pixel, scanning the first view-map for at least one pixel location whose source-view image value closely matches that of the origin pixel, and generating the reduced sized view-map by replicating matched pixel locations within the first view-map.

US Patent:

7616227, Nov 10, 2009

Filed:

Oct 1, 2004

Appl. No.:

10/956987

Inventors:

Lenny Lipton - Greenbrae CA, US
Mark H. Feldman - Walnut Creek CA, US
Robert Akka - Fairfax CA, US

Assignee:

Real D - Beverly Hills CA

International Classification:

H04N 13/00
H04N 13/04

US Classification:

348 51

Abstract:

A system and method for interdigitating multiple perspective views in a stereoscopic image viewing system. A lenticular sheet is affixed in intimate juxtaposition with a display area having a defined aspect ratio. The display area includes a plurality of scan lines each having a plurality of pixels, each pixel including subpixels. A map having the same resolution as the display is created to store values corresponding to each subpixel in the display area. Preferably, the map is generated beforehand and stored for later use through a lookup operation. A buffer stores a frame having n views, wherein each of the n views has the same aspect ratio as the display area. A plurality of masks is also created and stored. Each mask corresponds to a unique one of the n views and includes opaque areas and a plurality of transparent windows, each of which corresponds to a selected subpixel location. The n views are then interdigitated while applying the corresponding masks, and a value is assigned to each subpixel using the map.

US Patent:

7616228, Nov 10, 2009

Filed:

Apr 29, 2005

Appl. No.:

11/118516

Inventors:

Lenny Lipton - Greenbrae CA, US
Mark H. Feldman - Walnut Creek CA, US
Robert Akka - Fairfax CA, US

Assignee:

Real D - Beverly Hills CA

International Classification:

H04N 13/00
H04N 13/04

US Classification:

348 51

Abstract:

A system and method for interdigitating multiple perspective views in a stereoscopic image viewing system. A lenticular sheet is affixed in intimate juxtaposition with a display area having a defined aspect ratio. The display area includes a plurality of scan lines each having a plurality of pixels, each pixel including subpixels. A map having the same resolution as the display is created to store values corresponding to each subpixel in the display area. Preferably, the map is generated beforehand and stored for later use through a lookup operation. A buffer stores a frame having n views, wherein each of the n views has the same aspect ratio as the display area. A plurality of masks is also created and stored. Each mask corresponds to a unique one of the n views and includes opaque areas and a plurality of transparent windows, each of which corresponds to a selected subpixel location. The n views are then interdigitated while applying the corresponding masks, and a value is assigned to each subpixel using the map.

US Patent:

7652674, Jan 26, 2010

Filed:

Feb 9, 2006

Appl. No.:

11/350534

Inventors:

Mark Feldman - Walnut Creek CA, US
Bob Akka - Sausalito CA, US

Assignee:

Real D - Beverly Hills CA

International Classification:

G09G 5/00
G09G 5/02
G06T 15/20
H04N 13/04
H04N 15/00
H04N 9/47
G06K 9/40

US Classification:

345582, 348 51, 348 59, 348 42, 345586, 345606, 345613, 345552, 382254, 382300

Abstract:

A method of interdigitation for display of an autostereoscopic source image to a screen comprising a plurality of pixels having sub-pixels and sub-pixel components and apparatus for interdigitation is provided. The method comprises generating a texture memory coordinate at each pixel location on the screen of the source image, calculating screen pixel location based on the texture memory coordinate of each pixel, computing view numbers based on screen pixel location, wherein view numbers comprise one value for each sub-pixel component, mapping proportional pixel locations in tiles from multiple tile perspective views of the autostereoscopic image to a resultant image using the view numbers, and extracting one subpixel component from each proportional pixel location to represent color for the pixel in the resultant image.

US Patent:

7804995, Sep 28, 2010

Filed:

Jul 2, 2003

Appl. No.:

10/613866

Inventors:

Lenny Lipton - Greenbrae CA, US
Mark H. Feldman - Walnut Creek CA, US

Assignee:

RealD Inc. - Beverly Hills CA

International Classification:

G06K 9/00

US Classification:

382154

Abstract:

A device and method for converting one stereoscopic format into another. A software-enabled matrix is used to set forth predefined relationships between one type of format as an input image and another type of format as an output image. The matrix can then be used as a look-up table that defines a correspondence between input pixels and output pixels for the desired format conversion.

US Patent:

51683245, Dec 1, 1992

Filed:

Jan 18, 1989

Appl. No.:

7/298812

Inventors:

Richard P. Hackel - Livermore CA
Mark Feldman - Livermore CA

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

H01S 300

US Classification:

356346

Abstract:

A wavelength meter is disclosed which can determine the wavelength of a laser beam from a laser source within an accuracy range of two parts in 10. sup. 8. The wavelength meter has wedge having an elliptically shaped face to the optical path of the laser source and includes interferometer plates which form a vacuum housing.