Alan C. Cribbs is a notable inventor based in North Canton, OH (US). He has made significant contributions to the field of industrial automation, holding a total of 2 patents. His work focuses on enhancing data transfer techniques and communication modules within industrial automation controllers.

Latest Patents

One of his latest patents is titled "Backplane data transfer technique for industrial automation controllers." This invention describes a bus structure that interconnects modules of an industrial automation controller. It includes DATA lines and control lines that enable interface circuits on each module to transfer frames of data. The modules connected to this bus structure support varying data widths and speeds, with interface circuits that automatically adapt to these differences. During the initial bus cycle of each transfer, sending and receiving modules negotiate the bus width and clock speed to be used for the transfer. This negotiation is achieved by asserting their respective width and speed codes onto a set of wired-or status lines.

Another significant patent is the "Method for and apparatus for operating a local communications module in." This invention also involves a bus structure for interconnecting modules of an industrial automation controller. It includes DATA lines and control lines that allow interface circuits to send and receive frames of data. An arbitration circuit in each module uses arbitration lines to conduct a two-phase competition to determine which module receives the next bus mastership. The arbitration process involves asserting a local weight code onto the weight code lines, allowing the modules to determine which one has the highest priority for bus control.

Career Highlights

Alan C. Cribbs is currently employed at Allen-Bradley Company, LLC, where he continues to innovate in the field of industrial automation. His work has significantly impacted the efficiency and effectiveness of data transfer in automation systems.

Collaborations

Throughout his career, Alan has collaborated with notable colleagues, including Robert C. Weppler and Timothy J. Murphy. These collaborations have contributed to the advancement of technology in their field.

Conclusion

Alan C. Cribbs is a distinguished inventor whose work in industrial automation has led to important advancements in data transfer techniques. His patents reflect a commitment to improving communication within automation systems, showcasing his expertise and innovative spirit.

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