Zspace, Inc.

Aurora Systems, Inc.

Apple Inc.

Hewlett-packard Development Company, L.p.

Mark F Flynn

David A Chavez

Arthur Louis Berman

Jerome C Tu

Peter Frank Ullmann

Kevin D Morishige

Douglas Clay Twilleager

Carola F Thompson

Michael A Cheponis

Matthew Bone

Chaohao Wang

Sheng Zhang

Jacques L Gagne

Robert P Bliven

Yury Anatolievich Petrov

Raymond Louis Gradwohl

Chun Wun Yeung

Wei-Liang Hsu

Dmytro Reznikov

An electronic device may include a display system with a pixel array and a catadioptric lens. The display system may include a linear polarizer through which image light from the pixel array passes and a first quarter wave plate through which the light passes after passing through the polarizer. The lens may include a partial mirror, a second quarter wave plate, and a reflective polarizer. A third quarter wave plate may be formed between the linear polarizer and the pixel array to mitigate ghost images. Control circuitry may predict potential ghost images based on the geometry of the lens and data from an image frame. Tone mapping circuitry may adjust contrast of the image frame within a region overlapping the predicted ghost image. The control circuitry may adjust luminance of the image frame outside of the region overlapping the predicted ghost image.

Optical system with ghost image mitigation

A voltage may be provided to a liquid crystal addressable element as part of a liquid crystal device. The provided voltage may be reduced from a driven state to a relaxed state in a time period greater than 1 &#x3bc;s. The reduction may further be performed in less than 20 ms. The liquid crystal device may be a polarization switch, which in some embodiments may be a multi-segment polarization switch. In one embodiment, pulses of limited duration of a light source may be provided to the polarization switch. The manner of voltage reduction may reduce optical bounce of the liquid crystal device and may allow one or more of the pulses of the light source to be shifted later in time.

Liquid crystal variable drive voltage

In some embodiments, a system and/or method may operate a liquid crystal device. The method may include increasing a voltage provided to a driven level to a liquid crystal addressable element of the liquid crystal device. Said increasing may be performed over a time period greater than 1 ms. The liquid crystal addressable element may be in a driven state at the driven level. The method may include reducing the provided voltage to a relaxed level. The liquid crystal addressable element may be in a relaxed state at the relaxed level. Said increasing the voltage over the time period to the driven level may result in a reduced acoustical noise associated with the provided voltage. In some embodiments, the liquid crystal device may include a three-dimensional (3D) display.

System and methods for using modified driving waveforms to inhibit acoustic noise during driving of a liquid crystal polarization rotator

In some embodiments, a system and/or method may assess handedness of a user of a system in an automated manner. The method may include displaying a 3D image on a display. The 3D image may include at least one object. The method may include tracking a position and an orientation of an input device in open space in relation to the 3D image. The method may include assessing a handedness of a user based on the position and the orientation of the input device with respect to at least one of the objects. In some embodiments, the method may include configuring at least a portion of the 3D image based upon the assessed handedness. The at least a portion of the 3D image may include interactive menus. In some embodiments, the method may include configuring at least a portion of an interactive hardware associated with the system based upon the assessed handedness.

Methods for automatically assessing user handedness in computer systems and the utilization of such information

System and method for video processing. First video levels for pixels for a left image of a stereo image pair are received from a GPU. Gamma corrected video levels (g-levels) are generated via a gamma look-up table (LUT) based on the first video levels. Outputs of the gamma LUT are constrained by minimum and/or maximum values, thereby excluding values for which corresponding post-OD display luminance values differ from static display luminance values by more than a specified error. Overdriven video levels are generated via a left OD LUT based on the g-levels. The overdriven video levels correspond to display luminance values that differ from corresponding static display luminance values by less than the error threshold, and are provided to a display device for display of the left image. This process is repeated for second video levels for a right image of the stereo image pair, using a right OD LUT.

Optimizing stereo video display

In some embodiments, a system and/or method may include accessing three-dimensional (3D) imaging software on a remote server. The method may include accessing over a network a 3D imaging software package on a remote server using a first system. The method may include assessing, using the remote server, a capability of the first system to execute the 3D imaging software package. The method may include displaying an output of the 3D imaging software using the first system based upon the assessed capabilities of the first system. In some embodiments, the method may include executing a first portion of the 3D imaging software using the remote server based upon the assessed capabilities of the first system. In some embodiments, the method may include executing a second portion of the 3D imaging software using the first system based upon the assessed capabilities of the first system.

Network based 3D design and collaboration

3D design and collaboration over a network

System and method for video processing. At least one overdrive (OD) look-up table (LUT) is provided, where the at least one OD LUT is dependent on input video levels and at least one parameter indicative of at least one attribute of the system or a user of the system. Video levels for a plurality of pixels for an image are received, as well as the at least one parameter. Overdriven video levels are generated via the at least one OD LUT based on the video levels and the at least one parameter. The overdriven video levels are provided to a display device for display of the image. The reception of video levels and at least one parameter, the generation of overdriven video levels, and the provision of overdriven video levels, may be repeated one or more times in an iterative manner to display a sequence of images.

Extended overdrive tables and use

System and methods for cloud based 3D design and collaboration

An electro-optical projection system includes a polarizer, a reflective light modulator, an analyzer, and a compensation element. The polarizer polarizes an illumination beam to form a polarized illumination beam. The reflective light modulator receives the polarized illumination beam along a first optical path, modulates the polarized illumination beam to form an imaging beam, and reflects the imaging beam along a second optical path. The compensation element is disposed in the polarized illumination beam and the imaging beam to compensate for polarization aberrations resulting from the birefringent property of the material of the reflective light modulator. The compensation plate has a retardation generally equal in magnitude and opposite in sign as compared to the retardation of the liquid crystal material of the reflective light modulator.

Optical system with angular compensator

An electronic device enclosure with sliding and pivoting doors. An opening of the electronic device enclosure provides access to electronic componentry. A first door and a second door are for covering the opening, the first door movably coupled and opposably slidable to the second door such that a single action to open the first door is operable to open the second door by sliding the second door in a substantially opposite direction.

Growing community of inventors

San Jose, CA, United States of America

Mark F Flynn