Texas Instruments Corporation

Keith Harold Elliott

William B Werner

Gregory James Hewlett

Paul S Breedlove

Roy I Edenson

Peter F Van Kessel

Terry Alan Bartlett

Claude E Tew

Kazuhiro Ohara

Adam J Kunzman

Dana Dudley

Mark L Burton

D J Segler

A method for reducing motion artifacts and the systems for implementing the same are provided. The method includes receiving a full-resolution image at a first time point; extracting a first partial-resolution image from the full-resolution image; and calculating a second partial-resolution image for a second time point after the first time point. The first and the second partial-resolution images are complementary.

System and method for reducing motion artifacts by displaying partial-resolution images

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 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

An integrating rod ( ) for combining light beams from two or more sources. A first light beam ( ) enters the integrating rod through a first entrance face ( ) to a first reflecting face ( ). The light is reflected by the first reflecting face ( ) and travels along the major axis ( ) of the integrating rod ( ) to an exit face ( ). A second light beam ( ) from a second light source enters the integrating rod ( ) through a second entrance face ( ). The second light beam may be reflected by a second reflecting face ( ) and travels along the major axis ( ) to the exit face ( ). The two light beams experience multiple reflections as they travel along the integrating rod and leave the integrating rod ( ) through the exit face ( ) as a single homogenous light beam.

Optical architectures for combining multiple lamps in light valve projectors

Methods of controlling the illumination source (,) of an SLM-based display system (,). It is assumed that the system (,) displays pixel data formatted into a bit-plane format so that all bits of the same bit-weight can be displayed simultaneously. To provide greyscale, the amplitude of the source (,) may be modulated so that bit-planes having greater bit-weights are displayed with more intense illumination than bit-planes having smaller bit-weights (FIGS.,and,). To avoid visual artifacts, the duty cycle of the bit-plane display times may be shortened relative to the frame period. (FIG.,A). The latter method can be accompanied by a shortening of the duty time of the illumination on SLM (,). (FIG.,B). The short duty cycle method may be used together with illumination amplitude modulation, or it may be used with the PWM method of providing greyscale.

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Plano, TX, United States of America

Keith Harold Elliott