Harry H Cheng

Title: Innovations by Inventor Harry H Cheng

Introduction

Harry H Cheng is a notable inventor based in Davis, California, who has made significant contributions through his innovative patents. With a total of two patents to his name, he continues to push the boundaries of technology, particularly in robotics and detection systems.

Latest Patents

One of Cheng's latest inventions is the Four Degree of Freedom (4-DOF) single modular robot unit or joint. This invention features a module composed of a center link pivotably connected to two outer links, which includes continuously rotatable faceplates disposed on the outer links. This innovative design allows for four degrees of freedom (4-DOF) and enables modules to interconnect to form a flexible 'snake' assembly. The module can move forward in a straight line through simultaneous rotation of the faceplates and can turn in its length by reversing the rotation. Furthermore, the invention allows for 'inch worm' movement by sequentially pivoting the outer links. The integration of two or more modules enhances flexibility and increases the number of available degrees of freedom. Additionally, this invention incorporates apertures for interconnecting modules and facilitating electrical power and signal connections, all powered by a battery housed in the center link.

Another significant patent of Cheng's is a non-intrusive laser-based detection system for measuring vehicles moving across a planar surface. This advanced system resolves the common issues related to quantitative traffic data acquisition methods, such as inductive loops, video-image processing, and time-of-flight laser systems. The novel approach employs a fan angle laser, image lens, cylindrical optics, and a linear photodetector array, combined with sophisticated signal processing hardware and software. Positioned above the detection plane, this system can effectively identify object boundaries under all lighting conditions. Instead of relying on the reflectance of the detected object, the system utilizes reflections off the roadway surface to determine the presence, shape, and dimensions of vehicles in real time, enhancing travel time measurement capabilities.

Career Highlights

Harry H Cheng is affiliated with the University of California, where he has been able to contribute his extensive knowledge in engineering and innovative technologies. Through his work, Cheng has advanced the development of robotics and detection technologies, showcasing inventive problem-solving skills that lead to practical applications.

Collaborations

Throughout his career, Cheng has worked alongside esteemed colleagues such as Benjamin D Shaw and Joe Palen. These collaborations have undoubtedly enriched his work, allowing for the sharing of ideas and enhancing the creative process in developing groundbreaking innovations.

Conclusion

In summary, Harry H Cheng stands out as a prominent figure in the realm of innovation. His patents reflect a deep understanding of both robotics and advanced detection systems. As a member of the University of California, Cheng continues to inspire future inventors while making substantial contributions to the field of engineering.