Location History:
- Palo Alto, CA (US) (2005 - 2014)
- Corvallis, OR (US) (2016)
- San Jose, CA (US) (2007 - 2017)
Company Filing History:
30 out of 27,394 
2 out of 832,680 Years Active: 2005-2025
Title: Innovations and Contributions of Nelson Liang An Chang
Introduction
Nelson Liang An Chang, based in San Jose, CA, is an accomplished inventor with a remarkable portfolio of 31 patents. His work primarily focuses on imaging systems and display technologies, making significant contributions to the fields of visual representation and calibration.
Latest Patents
Among his latest innovations are two patents: "Defining a Projector Display Region" and "Apparatus and Methods for Imaging System Calibration." The first patent introduces a method for defining a projector display region by integrating an image of a camera's view with a reference canvas displayed on a graphical user interface. This innovative approach involves mapping coordinates to create a correspondence between the canvas and the displayed image, allowing for greater control in the projection process.
The second patent focuses on calibrating imaging systems by deriving calibration-enabling data from a reference image. This technology captures an image of the physical rendering of a reference image and matches image features to enhance the calibration of the imaging system. Both patents exemplify Chang's commitment to advancing imaging technology.
Career Highlights
Throughout his career, Nelson Liang An Chang has been associated with prominent organizations, including Hewlett-Packard Development Company, L.P., where he contributed to various innovative projects. His experience in the tech industry has equipped him with the skills and knowledge to push the boundaries of imaging and display technologies.
Collaborations
Chang has had the opportunity to work alongside talented professionals, including Niranjan Damera-Venkata and Simon Widdowson. These collaborations have enriched his work and played a vital role in his innovative journey, fostering an environment of shared creativity and knowledge.
Conclusion
Nelson Liang An Chang stands out as a significant contributor to the world of technology through his numerous patents and collaborations. His innovative solutions in projector display and imaging system calibration continue to shape and enhance user experiences in visual technology, ensuring that he remains a key figure in the advancement of these fields.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.