Company Filing History:
Years Active: 1997
Title: Innovations by Inventor Tommy C Lee
Introduction
Tommy C Lee is a notable inventor based in Danville, CA (US). He has made significant contributions to the field of multimedia systems, holding a total of 3 patents. His work focuses on enhancing the precision and quality of video overlays in multimedia displays.
Latest Patents
One of his latest patents is a multimedia overlay system for graphics and video. In this invention, the RGB analog signals generated by a VGA card in a personal computer are applied to a first input of an analog multiplexer. The digital video data stored in a video memory buffer on a video card is converted to RGB analog signals using a D/A converter, which are then applied to a second input of the analog multiplexer. An analog comparator compares a preselected color key to the analog output of the VGA card. When a match occurs, the analog comparator controls the multiplexer to pass the analog video data to the monitor for display. If the color key is not detected, the data from the VGA card is transmitted to the monitor for display. This patent also describes additional features for improving video overlay precision and the quality of the displayed image.
Another significant patent is the color key detection scheme for multimedia systems. This method is particularly advantageous when an analog multiplexer is controlled to pass either analog graphics signals or analog motion video signals to a multimedia display screen. The method includes outputting a digital color key from a graphics memory buffer at a designated time and for a designated period, followed by converting this color key to an analog signal. This analog color key signal is detected during the designated period and stored to obtain a stored color key value. The graphics memory is then controlled to output the graphics signals to be displayed on a multimedia screen. These graphics signals include a digital color key for controlling a multiplexer to display a motion video window on the multimedia screen in place of the color key. The outputted graphics signals are converted into analog signals, which are compared to the stored color key value to detect whether a color key is being outputted in the graphics data stream.
Career Highlights
Tommy C Lee has worked with several companies, including Auravision Corporation and Aurvision Corporation. His experience in these organizations has contributed to his expertise in multimedia technologies and innovations.
Collaborations
Some of his notable coworkers include Sherman T King and Scott A Kimura.