Company Filing History:
Years Active: 1981-1987
Title: Innovations of Robert H Wallis
Introduction
Robert H Wallis is a notable inventor based in Portola Valley, California. He has made significant contributions to the field of data compression and video teleconferencing. With a total of 3 patents, Wallis has developed innovative technologies that enhance communication systems.
Latest Patents
One of his latest patents is a "Low bandwidth video teleconferencing system and method." This invention employs novel data compression techniques, allowing continuous transmission of imagery at a rate of 9600 bits per second. The system utilizes a sketch coder that converts grey scale images into line drawings, which represent the principal boundaries and shading for depth. The bandwidth required for transmitting the sketch is compressed using two-dimensional run length coding techniques, effectively exploiting redundancies to generate a binary transmission code.
Another significant patent is the "Dual mode facsimile coding system and method." This technique features symbol recognition and extended run-length coding methods. It isolates digital raster data representing valid alphanumeric characters and document symbols. The first symbol encountered is stored in a memory library, and as new symbols are detected, they are compared with existing entries. If a match is found within a predetermined tolerance, a library identification code is generated. Otherwise, the new symbol is added to the library, and its digital pattern and location are transmitted.
Career Highlights
Robert H Wallis has worked at Compression Labs, Inc., where he has been instrumental in developing advanced data compression technologies. His work has significantly impacted the efficiency of video communication and facsimile systems.
Collaborations
Wallis has collaborated with notable colleagues such as William K Pratt and Ronald S Bader, contributing to the advancement of their shared field.
Conclusion
Robert H Wallis is a distinguished inventor whose innovations in data compression and video teleconferencing have paved the way for more efficient communication technologies. His contributions continue to influence the industry and enhance user experiences.
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