David A Rolfe

Title: David A Rolfe: Innovator in Search and Display Technologies

Introduction

David A Rolfe is a notable inventor based in Pasadena, California. He has made significant contributions to the fields of search systems and graphic display technologies. With a total of two patents to his name, Rolfe's work has had a lasting impact on how information is retrieved and displayed on computer systems.

Latest Patents

One of Rolfe's latest patents is a "Search and Retrieval System." This innovative system builds an index representing every word in stored files created by various applications. It searches for requested words using the index and ranks the files based on the relative strength of the match with the search request. Users can select a file from a display of ranked filenames, and the corresponding viewer is automatically loaded to display consecutive screens of information from the selected file. Further searching within the file is accomplished by matching character strings of a new search request with words in the items of the file produced by the viewer.

Another significant patent is the "Method and Apparatus for Determining Boundaries of Graphic Regions." This invention provides methods for determining the boundaries of arbitrarily shaped regions on a computer display system. The system utilizes a central processing unit (CPU) coupled to a display with selectively enabled and disabled display elements. The CPU determines if the initial seed cell corresponds to a disabled memory cell and searches outwardly to locate enabled cells, thereby establishing the boundaries of a region on the display.

Career Highlights

David A Rolfe is associated with Lotus Development Corporation, a company known for its innovative software solutions. His work at Lotus has allowed him to explore and develop advanced technologies that enhance user experience in information retrieval and display.

Collaborations

Throughout his career, Rolfe has collaborated with notable individuals such as Lawrence S Gross and William T Gross. These collaborations have contributed to the development of his innovative patents and have fostered a creative environment for technological advancements.

Conclusion

David A Rolfe's contributions to search and display technologies have significantly influenced the way users interact with information on computer systems. His innovative patents reflect a deep understanding of user needs and technological possibilities.