1
Carl Mizuyabu, Charles Leung, Milivoje Aleksic: System for reduced power consumption by monitoring video content and method thereof. ATI Technologies, Toler Larson & Abel, March 21, 2006: US07017053 (20 worldwide citation)

A system and method are provided for reducing power consumption within a video processing portion of a system based on display content. Display content is monitored to determine whether the display content is changing. New display content is compared to old display content to determine if the displa ...


2
Charles Leung, Keith Lee: Increasing the number of colors output by an active liquid crystal display. ATI Technologies, Vedder Price Kaufman & Kammholz, September 25, 2001: US06295041 (13 worldwide citation)

A technique increases the number of colors output by an active color display by providing an increased number of grey levels for each pixel component. An M×N matrix pattern of pixel components is generated having a ratio of pixel components at a particular color level to pixel components at a differ ...


3
Steven Turner, Milivoje Aleksic, Yin Wong Yang, Charles Leung: Portable device for providing dual display and method thereof. ATI Technologies, Toler Larson & Abel, March 14, 2006: US07012610 (8 worldwide citation)

Systems and methods are provided for supporting an external display on a portable device. A system on a chip (SOC) of the portable device provides a first set of graphics data to a graphics controller. The embedded graphics controller renders the first set of graphics data for output using an LCD sc ...


4
Richard R Pettijohn, Charles Leung, Ronald G Manning, Zoila Reyes, Malcolm Thackray: Photographic image enhancement method employing photoluminescence. SRI International, Victor R Beckman, November 10, 1981: US04299904 (5 worldwide citation)

A method of enhancing photographic images of low optical density is disclosed which includes use of a luminescent system, the components of which system include, at least, photoluminescent material and a source of photons for exciting the same to luminescence. A photoluminescent replica of the low o ...


5
Milivoje Aleksic, Aris Balatsos, Charles Leung: Method and apparatus for reducing power consumption of a co-processor by switching to low power dedicated memory in which image data is periodically updated. QUALCOMM Incorporated, Timothy F Loomis, Michael J DeHaemer, August 3, 2010: US07770040 (4 worldwide citation)

To provide reduced power consumption of a co-processor, a low power dedicated memory is provided. During a low power state, a processing component of the co-processor is instructed to use the low power dedicated memory and a first memory device, normally used by the processing component, is thereaft ...


6
Aris Balatsos, Charles Leung, Siva Raghu Ram Voleti: Circuits with transient isolation operable in a low power state. ATI Technologies ULC, Vedder Price P C, March 8, 2011: US07904838 (2 worldwide citation)

An integrated circuit includes a core-logic providing a core-logic output, a latch in communication with the core-logic to store a state of the core-logic output, and an isolation circuit for selectively interconnecting the core-logic output to an input of the latch. The circuit also includes and a ...


7
Kongning Li, Charles Leung, Grigori Temkine, Milivoje Aleksic, Steven Turner, Greg Vansickle, Kevin O Neil: Reduced component digital to analog decoder and method. ATI Technologies, Vedder Price P C, June 10, 2008: US07385545 (1 worldwide citation)

An n bit D/A decoder is formed using P-type and N-type transistor switches, instead of convention CMOS switches. Each P-type and N-type switch may be formed of fewer transistors than those used to form a CMOS switch, thereby reducing the overall transistor count. The decoder may be used to decode di ...


8
Jatin Naik, David Glen, Paul Edelshteyn, Vadim Bishtein, Charles Leung: System and method for detecting accessory connection and accessory class. ATI Technologies ULC, October 9, 2012: US08284087 (1 worldwide citation)

A method comprises disabling a video digital-to-analog converter (DAC) that is configured to provide an output current representative of a video signal to an output node of an accessory connector in an enabled state. The accessory connector is coupleable to an accessory device. The method further co ...


9
Charles Leung, Keith Lee: Increasing the number of colors output by a passive liquid crystal display. ATI Technologies, Vedder Price Kaufman & Kammholz, May 14, 2002: US06388647 (1 worldwide citation)

A technique to increase the number of colors output by a passive color LCD display provides an increased number of grey levels for each pixel component. An M×N matrix pattern of pixel components is generated having a ratio of pixel components that are ON to the total number of pixel components to ac ...


10
Kongning Li, Charles Leung, Grigori Temkine, Milivoje Aleksic, Steven Turner, Greg Vansickle, Kevin O Neil: Reduced component digital to analog decoder and method. ATI Technologies ULC, Vedder Price P C, October 4, 2011: US08031093

An n bit D/A decoder is formed using P-type and N-type transistor switches, instead of convention CMOS switches. Each P-type and N-type switch may be formed of fewer transistors than those used to form a CMOS switch, thereby reducing the overall transistor count. The decoder may be used to decode di ...