Dolby Laboratories Licensing Corporation

Jared Smith

Alan Jeffrey Seefeldt

C Phillip Brown

Michael John Smithers

Giorgio Giaretta

Chun Chi Wan

Trevor Davies

Christopher John Orlick

Gopal Erinjippurath

Warren Mansfield

Eugene Edward Radzik

Saagar Patel

Embodiments are directed to speakers and circuits that reflect sound off a wall surface () to a listening location at a distance from a speaker. The reflected sound () provides direct audio cues to reproduce audio objects that have direct audio components without the need for direct firing speakers. The speaker comprises sideward firing drivers () to reflect sound off of the wall surface () and represents a virtual direct speaker (). A virtual direct filter is applied to the sideward-firing driver signal to improve the perception of direct audio transmitted by the sideward firing speaker () to provide optimum reproduction of the reflected sound. The virtual direct filter may be incorporated as part of a crossover circuit that separates the full band and sends high frequency sound to the sideward-firing driver ().

Reflected sound rendering using downward firing drivers

In one embodiment the present invention includes a display system for displaying video. The display system includes a backlight layer and an LCD layer. The display system controls the backlight layer and the LCD layer to emulate a cathode ray tube response. This emulation may be accomplished by applying a gamma function to a gamma corrected input signal. In this manner, the effects resulting from the 'crushed blacks' phenomenon may be reduced.

System and method for backlight and LCD adjustment

In an embodiment, a method performs computer operations using a first fractional precision and a second fractional precision. A computer program has a source variable, a destination variable, and an operation. The source variable has a first dynamic fractional precision, the destination variable has a second dynamic fractional precision that differs from the first dynamic fractional precision, and the operation is related to the source variable and the destination variable. The source variable is aligned to a format of the destination variable, according to the first dynamic fractional precision and the second dynamic fractional precision. The operation is performed using the destination variable and the source variable. A value is assigned to the destination variable according to the operation. In this manner, a single codebase may be written that operates on various hardware that each have different bit precision capabilities, without requiring additional development and verification effort.

System and method of dynamic precision operations

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San Francisco, CA, United States of America

Jared Smith