David C Haigh

Title: The Innovative Contributions of David C Haigh

Introduction

David C Haigh is a notable inventor based in Winchester, GB. He has made significant contributions to the field of display systems, holding a total of 4 patents. His work has advanced the technology used in graphics cursors and color modes, showcasing his expertise and innovative spirit.

Latest Patents

One of Haigh's latest patents is a display system with a graphics cursor. This system features cursor definition memory for storing data that defines a graphics cursor. It includes a cache for temporarily storing a portion of the graphics cursor for display on a device. The cache operates at a sufficient data rate to support the display of the cursor, while control logic updates the cache from the cursor definition memory at a slower rate. This design allows for the use of inexpensive memory that does not support the required data rate.

Another significant patent is a display system with direct color mode. This system includes a display memory, a palette, and a digital-to-analogue converter stage. It supports both indirect and direct color modes. In the indirect color mode, pixel data accesses chrominance and/or luminance data from the palette. In the direct color mode, pixel data directly specifies the chrominance and/or luminance data for conversion into analogue values. This invention provides flexibility and efficiency in displaying colors.

Career Highlights

David C Haigh is associated with the International Business Machines Corporation, commonly known as IBM. His work at IBM has allowed him to contribute to cutting-edge technology in display systems. His innovative patents reflect his commitment to advancing the field.

Collaborations

Throughout his career, Haigh has collaborated with notable colleagues, including Roy B Harrison and Norman Apperley. These collaborations have likely enriched his work and contributed to the success of his inventions.

Conclusion

David C Haigh's contributions to display technology through his patents demonstrate his innovative capabilities and dedication to the field. His work continues to influence advancements in graphics systems and color display technologies.