William C Apperson

Title: Innovations of William C Apperson

Introduction

William C Apperson is an accomplished inventor based in Renton, WA (US). He holds a total of 4 patents that showcase his contributions to technology, particularly in the field of optical mark reading.

Latest Patents

One of his latest patents is a device and method for inspecting markings. This invention involves an optical mark reader (OMR) equipped with an array of photo sensors and light-emitting diodes (LEDs). The sensors are driven by digital-to-analog converters (DACs) controlled by a microcontroller. During calibration, the OMR reads a white card, allowing the microcontroller to adjust the DACs for optimal sensor performance. The device can read patterns of known grayscales, storing voltage values in a memory device for accurate mark detection. Another significant aspect of his optical mark reader is its unique housing design, which facilitates easy access for maintenance and improves card insertion.

Career Highlights

Throughout his career, William has worked with notable companies, including Renaissance Learning, Inc. His innovative designs and methods have significantly impacted the efficiency of optical mark reading technology.

Collaborations

William has collaborated with several professionals in his field, including Mark R Swanson and Courtland G Beck. Their combined expertise has contributed to the advancement of the technologies they have developed.

Conclusion

William C Apperson's work in optical mark reading technology demonstrates his innovative spirit and dedication to improving the efficiency of data collection methods. His patents reflect a commitment to advancing technology in meaningful ways.