Company Filing History:
1 out of 838 
1 out of 21 Years Active: 1999-2000
Title: Christopher Walsh: Innovator in Graphics Technology
Introduction
Christopher Walsh is an accomplished inventor based in Arlington, MA (US). He holds 2 patents that showcase his expertise in graphics technology. His innovative contributions have significantly impacted the field of video graphics controllers.
Latest Patents
Walsh's latest patents include a "Graphics controller for forming a composite image." This invention produces a composite image by selecting between input image pixels designated for the same pixel location. The selection process utilizes a computed select function on a pixel-by-pixel basis, providing a select signal that indicates which pixel should be displayed on the screen. The select signal employs mixing key functions to determine the pixel to be passed, with results output as key codes. These key codes are combined through logical operations to enhance the selection process for the displayed image.
Another notable patent is the "Video graphics controller having locked and unlocked modes of operation." This invention features a video graphics controller (VGC) that communicates with a frame buffer memory and a display device. It includes a FIFO-configured memory and a memory controller that manages communication with the frame buffer. The controller can operate in locked or unlocked modes based on the generation of read carry signals during frame input.
Career Highlights
Throughout his career, Walsh has worked with prominent companies, including Philips Electronics North America Corporation. His experience in these organizations has contributed to his development as an inventor in the graphics technology sector.
Collaborations
Walsh has collaborated with notable professionals in his field, including Michael J. Schaffstein. Their partnership has likely fostered innovation and creativity in their projects.
Conclusion
Christopher Walsh is a significant figure in the realm of graphics technology, with his patents reflecting his innovative spirit and technical expertise. His contributions continue to influence the development of video graphics controllers and composite image processing.