Texas Instruments Corporation

William B Werner

Keith Harold Elliott

Gregory James Hewlett

Paul S Breedlove

Roy I Edenson

Peter F Van Kessel

Duane Scott Dewald

Frank Joseph Poradish

Kazuhiro Ohara

Adam J Kunzman

A secure digital data distribution system () for preventing unauthorized access to digital data. The system utilizes an identification system module () embedded in a digital storage media () to grant authorization to media players (). Prior to reading the digital data recorded on the media (), an identification system interrogator () reads authorization data from the identification system module () to determine whether the media player () is authorized to read the media (). If the authorization data matches the media player's unique identifier, authorization is granted and the media player () commences to read the media ().

Secure distribution of digital data

A transport stream with embedded projector configuration databeing carried along with the video for use in digital cinema projector setup. The embedded configuration data consists of sub-packetsof setup data information for such parameters as gamma tables, color management system information, relative luminance level, format and range of the sampled data, 3D/2D presentation information, frame rate, image size, aspect ratio, font tables, and language provision. This approach assures that the projectoris setup properly and also permits on-the-fly changes to the projector's parameters, which may be used for artistic effects in the movie.

Projector configuration

A 3-D digital projection displaythat uses a quadruple memory bufferto store and read processed video data for both right-eye and left-eye display. Video data is processed at a 48-frame/sec rate and readout twice (repeated) to provide a flash rate of 96 (up to 120) frames/sec, which is above the display flicker threshold. Data is synchronized with a headset or goggles with the right-eye and left-eye frames being precisely out-of-phase to produce a perceived 3-D image.

Digital formatter for 3-dimensional display applications

A display system ( ) in which light from source ( ) is focused onto a spinning color wheel ( ). The spinning color wheel ( ) spins at a constant rate and creates of beam of light that changes from one primary color to the next in rapid sequence. The primary colored beam of light impinges a spatial light modulator ( ), which is often a DMD or LCD. A controller ( ) receives an input video signal and determines the native frame rate of the image source. The controller ( ) sends image data to the spatial light modulator ( ) in synchronization with the color wheel ( )&mdash;image data representing the red portions of the image is sent during the period in which the red color filter is passing through the beam of light&mdash;at the native frame rate of the image source. The modulated light is focused onto an image plane ( ) by projection lens ( ) to form an image. The eye of the viewer integrates the sequential primary color images giving the perception of a single full-color image. The display system uses a single nominal color wheel speed to display input signals having various native frame rates. The nominal color wheel speed is selected to allow the same color wheel rate to be used for a variety of native frame rates. The color wheel speed is selected to provide a sub-frame rate that is an integer multiple the native frame rate of each potential input format.

Color wheel synchronization in multi-frame-rate display systems

A transport stream with embedded projector configuration data being carried along with the video for use in digital cinema projector setup. The embedded configuration data consists of sub-packets of setup data information for such parameters as gamma tables, color management system information, relative luminance level, format and range of the sampled data, 3D/2D presentation information, frame rate, image size, aspect ratio, font tables, and language provision. This approach assures that the projector is setup properly and also permits on-the-fly changes to the projector's parameters, which may be used for artistic effects in the movie.

Digital cinema transport stream with embedded projector configuration data

Methods for measuring and automatically controlling the light distribution and overall brightness in electronic-based spatial light modulator projection display systems. One method takes a small fraction of the projected light from a partial turning mirror in the projector's optics path and focuses this light on to a detector for use in controlling the light distribution and brightness of the system. Another method uses an array of embedded light sensors at chosen locations on the surface of a display screen to control the light distribution and brightness parameters of the projection system. Both methods use a micro-controller, servomotors, and an adjustable power supply, controlled by the detector/sensor outputs, to maintain the desired light distribution and brightness in the projected image.

Automated lamp focus

A motion artifact reduction system ( ) includes a series of cinematic feature image frames (IF , IF )captured at an incoming frame rate. The motion artifact reduction system ( ) also has a processor ( ) operable to determine whether an object (O) having a first location (O ) in a first image frame (IF ) is sufficiently displaced from a location (O ) in a second image frame (IF ) corresponding to the first location (O ). The processor ( ) is also operable to interpolate data from the first image frame (IF ) and the second image frame (IF ) to create a third image frame (OF ) including the interpolated data. The processor ( ) is also operable to insert the third image frame (OF ) between the first image frame (IF ) and the second image frame (IF ) to form a new series (OF , OF , and OF ) in response to the determination that object (O) has been sufficiently displaced between image frames (IF , IF ).

Method and system for reducing motion artifacts

A video processing unit (13) that decodes compressed video data and resizes the image represented by the video data. The video processing unit (13) has two processing engines--a decoding engine (24) and a scaling engine (25), which share a memory (23). A memory manager (22) handles data requests from the two engines, and handles reading and writing of the memory (22).

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Plano, TX, United States of America

William B Werner